Ch7

Question 1

Which of the following best describes the networking infrastructure commonly found in large organizations?
a) They primarily rely on wireless LANs for connectivity with limited use of wired LANs.
b) They exclusively use wired LANs with minimal reliance on wireless connectivity.
c) They utilize a combination of wired LANs and wireless LANs connected by backbone networks.
d) They solely depend on backbone networks, eliminating the need for both wired and wireless LANs.

Answer 1

C

Question 2

What is one of the primary functions of LANs?
a) Facilitating communication between data centers
b) Enabling user access to the network
c) Providing e-commerce security
d) Managing network infrastructure remotely

Answer 2

B

Question 3

LANs are used for

Answer 3

+ Access (by users to connect to network)
–> Most LAN design is performed to enable user access
+Data center
+E-commerce edge

Question 4

How has Ethernet evolved in the realm of LAN technology?
a) It has become obsolete, making room for newer LAN technologies.
b) It has remained stagnant, with no significant advancements.
c) It has emerged as the dominant LAN technology, displacing others over time.
d) It has seen sporadic use, with limited adoption in LAN networks

Answer 4

C

Question 5

Which component of a traditional LAN is responsible for initiating requests and accessing resources on the network?
a) Server
b) Network interface card (NIC)
c) Hubs/switches/access points
d) Client computer

Answer 5

D

Question 6

Which component of a LAN acts as a centralized repository for data and resources, providing services to client computers?
a) Client computer
b) Network interface card (NIC)
c) Server
d) Network circuits

Answer 6

C

Question 7

Which component of a LAN facilitates the connection between the client computers and the network infrastructure?
a) Network interface card (NIC)
b) Server
c) Hubs/switches/access points
d) Network circuits

Answer 7

A

Question 8

What component of a LAN is responsible for the physical connection between devices, enabling data transmission?
a) Server
b) Network interface card (NIC)
c) Hubs/switches/access points
d) Network circuits

Answer 8

D

Question 9

Which component of a LAN manages the traffic and ensures efficient data transmission between devices on the network?
a) Client computer
b) Network interface card (NIC)
c) Hubs/switches/access points
d) The network operating system

Answer 9

C

Question 10

Which of the following is not a basic LAN component?
a. client
b. PAD
c. server
d. network interface card
e. network operating system

Answer 10

B

Question 11

The Network Interface Card (NIC) permits a computer to be physically connected to
a network’s cable

Answer 11

T

Question 12

Which statement accurately describes the integration of NICs in modern computers?
a) NICs are obsolete and rarely used in modern computer systems.
b) NICs are primarily external peripherals connected via USB ports.
c) NICs are commonly integrated into motherboard designs.
d) NICs are exclusively utilized in servers and data centers.

Answer 12

C

Question 13

What distinguishes a wired NIC from a wireless NIC?
a) Wired NICs use radio frequencies for communication.
b) Wireless NICs are integrated into motherboards.
c) Wired NICs require a physical connection to the network cable.
d) Wireless NICs are solely used in enterprise-level networks.

Answer 13

C

Question 14

What function does a wired NIC perform in a computer system?
a) It serves as a radio transceiver.
b) It facilitates wireless communication between devices.
c) It enables connection to a network cable.
d) It provides Bluetooth connectivity.

Answer 14

C

Question 15

Which statement accurately describes the functionality of a wireless NIC?
a) It requires a physical connection to the network cable.
b) It integrates directly into the motherboard.
c) It sends and receives messages using specific radio frequencies.
d) It exclusively supports wired network connections.

Answer 15

C

Question 16

How can wireless connectivity be enabled for desktop systems that lack built-in wireless capabilities?
a) By installing a new operating system
b) By plugging in a USB device
c) By replacing the motherboard
d) By upgrading the processor

Answer 16

B

Question 17

Which of the following components is specifically responsible for physically connecting a computer to a network?

A) Modem
B) Router
C) Network Interface Card (NIC)
D) Switch

Answer 17

C. Network Circuits: Connect a computer (specifically, a computer’s NIC) physically to the network

Question 18

What is the leading type of LAN cable commonly used in wired networks?
a) Shielded twisted pair (STP)
b) Unshielded twisted pair (UTP)
c) Coaxial cable
d) Fiber optic cable

Answer 18

B

Question 19

Why is unshielded twisted pair (UTP) commonly used in today’s networks?
a) Due to its high speed
b) Due to its resistance to interference
c) Due to its low cost and versatility
d) Due to its long-range connectivity

Answer 19

C

Question 20

Which type of LAN cable is the least costly and most commonly used in connecting computers to switches?
a) Coaxial cable
b) Shielded twisted pair (STP)
c) Unshielded twisted pair (UTP)
d) Fiber optic cable

Answer 20

C

Question 21

In which type of environments are Shielded Twisted Pair (STP) cables commonly employed?
a) Residential areas
b) Offices
c) Factories with heavy machinery
d) Schools

Answer 21

C

Question 22

What makes unshielded twisted pair (UTP) cables versatile?
a) Their ability to transmit data at high speeds
b) Their compatibility with various devices
c) Their resistance to damage
d) Their ease of installation and maintenance

Answer 22

D

Question 23

What is one of the main advantages of Shielded Twisted Pair (STP) compared to Unshielded Twisted Pair (UTP)?
a) Lower cost
b) Higher data transfer speeds
c) Resistance to electrical interference
d) Greater flexibility

Answer 23

C

Question 24

Compared to UTP wire, fiber-optic cables are generally:

A) Thicker and heavier.
B) Thinner and lighter.
C) The same weight and thickness.
D) Less reliable.

Answer 24

B

Question 25

What property makes fiber-optic cables ideal for space-limited environments?

A) They are flexible and can be easily cut.
B) They have high capacity and space-saving properties.
C) They are available in multiple colors.
D) They can transmit electrical signals.

Answer 25

B

Question 26

STP cable is least costly type of cable used in today’s networks and is the most
commonly used cable type in connecting computers to switches.

Answer 26

F. UTP

Question 27

Fiber optic cable is thicker and heavier than unshielded twisted pair.

Answer 27

F

Question 28

LANs that run on radio frequencies use a type of wired media.

Answer 28

F. Wireless LAN

Question 29

Fiber optic cable is thinner than unshielded twisted pair cable

Answer 29

T

Question 30

Fiber optic cable is lighter than unshielded twisted pair cable.

Answer 30

T

Question 31

Fiber optic cable is the least expensive cable option.

Answer 31

F. UTP

Question 32

Of the following, which is not true about fiber optic cable?
a. It is thinner than unshielded twisted pair cable.
b. It is lighter than unshielded twisted pair cable.
c. It has a very low capacity.
d. It is more expensive than CAT5 unshielded twisted pair cable.
e. It is a type of guided media.

Answer 32

C

Question 33

Which of the following type of media is most commonly used in backbone networks
because of its high capacity?
a. fiber
b. infrared frequencies
c. coax cable
d. unshielded twisted pair
e. shielded twisted pair

Answer 33

A

Question 34

IEEE 802.11ac runs on two different frequency spectrums simultaneously. Which of
the following are those two frequencies?
a. 2.4GHz and 5GHz
b. 24GHz and 5GHz
c. 11GHz and 54GHz
d. 8GHz and 11GHz
e. 2.4GHz and 11GHz

Answer 34

IEEE 802.11ac is wireless networking

Question 35

What do Wireless LANs use to transmit data between a Network Interface Card (NIC) and an Access Point (AP)?

A) Infrared signals
B) Radio Frequency (RF) transmissions
C) Ultraviolet light transmissions
D) Wired connections

Answer 35

B

Question 36

In which frequency ranges do Wireless LANs typically operate?

A) 1 GHz and 1.5 GHz
B) 2.4 GHz and 5 GHz
C) 5 GHz and 10 GHz
D) 1 GHz and 10 GHz

Answer 36

B

Question 36

When deploying multiple Access Points (APs) in a WLAN, what is important to ensure?

A) All APs should be on the same channel.
B) APs should use channels that don’t interfere with each other.
C) Only one AP should be active at a time.
D) All APs must transmit on the highest available frequency.

Answer 36

B

Question 37

What is the ideal condition distance range for a Wireless LAN under typical operating conditions?

A) 50-75 meters
B) 75-100 meters
C) 100-150 meters
D) 150-200 meters

Answer 37

C

Question 38

What do NICs do upon connecting to a WLAN?

A) Scan for devices connected to the network.
B) Automatically update their firmware.
C) Scan available channels and select the one with the strongest signal.
D) Require manual setting to connect to an AP.

Answer 38

C

Question 39

How are different channels managed among APs in a WLAN?

A) Each AP transmits on the same channel within the frequency range.
B) Each AP is set to transmit on a different channel within the frequency range.
C) APs are randomly assigned channels by the network administrator.
D) Channels are assigned based on the physical location of each AP.

Answer 39

B

Question 40

1000Base-LX is a version of 1000Base-T than runs on four pairs of CAT 5 cable

Answer 40

F. 1000 Base-F Ethernet

Question 41

Category 2 and category 4 cable are old standards no longer in use today

Answer 41

T

Question 42

Category 1 cable is an old standard that is no longer in use.

Answer 42

F. Category 1 is standard voice-grade twisted-pair wires, but it can also be used to support low-speed analog data transmission.

Question 43

Category 2 cable is standard voice-grade twisted-pair wires

Answer 43

F

Question 44

Category 7 cable has less range than the other types of cable

Answer 44

F. Category 6

Question 45

The maximum range of a Category 6 cable is 100 meters.

Answer 45

F. 55 meters

Question 46

Category 8 have a maximum range of 15 meters, which means they are typically used
between networking devices that are near each other (e.g., in a rack or data center)

Answer 46

F. Category 7

Question 47

The maximum range of Category 7 cables is 15 meters.

Answer 47

T

Question 48

What basic function do network hubs and switches serve in a computer network?

A) They provide encryption for data.
B) They provide an easy way to connect network cables.
C) They generate power for network devices.
D) They filter content on the network.

Answer 48

B

Question 49

What additional role do network hubs and switches often play in a network?

A) They serve as primary network storage
B) They act as repeaters by reconstructing and strengthening incoming signals
C) They reduce the cost of network management
D) They filter content on the network

Answer 49

B

Question 50

How many ports do network hubs and switches usually have when sold?

A) 1 or 2
B) 4, 8, 16, or 24
C) 30 or 32
D) Always over 50

Answer 50

B

Question 51

What additional capability do some switches have in terms of connectivity?

A) They only support coaxial cables
B) They enable connection of more than one kind of cabling, such as twisted-pair and fiber-optic
C) They exclusively use wireless technology
D) They are limited to USB connections

Answer 51

B

Question 52

Many network hubs and switches incorporate repeaters to regenerate signals so that
attenuation of the signal does not occur.

Answer 52

T

Question 53

What is a port in the context of network hubs and switches?

A) A device that controls network traffic
B) A software program that manages data flow
C) A connection point for network cables
D) A protocol for secure network communication

Answer 53

C

Question 54

What additional functionality do some switches offer regarding cable types?

A) They only support single cable type connections.
B) They enable different types of cables to be connected and perform the necessary conversions.
C) They disable certain types of cable connections.
D) They provide wireless connections only.

Answer 54

B. TP and fiber

Question 55

What is the maximum rated distance for twisted-pair cable usage in a network according to common standards?

A) 50 meters
B) 100 meters
C) 200 meters
D) 500 meters

Answer 55

B

Question 56

For what distance ranges are fiber-optic cables typically rated in LAN environments?

A) 50 to 100 meters
B) 100 to 300 meters
C) 400 meters to several kilometers
D) Several kilometers to several tens of kilometers

Answer 56

C

Question 57

An access point plays the same role in a wireless network as a router does in a wired
Ethernet network.

Answer 57

F. AP is a radio transceiver that plays the same role as a hub or switch in wired Ethernet network

Question 58

What role does a wireless access point (AP) play in a wireless LAN (WLAN)?

A) It only receives signals from client computers.
B) It serves as a hub or switch, facilitating communication among devices.
C) It restricts access to the internet.
D) It monitors network traffic for security purposes.
Answer: B) It serves as a hub or switch, facilitating communication among devices.

Answer 58

B

Question 59

What types of connections can a wireless access point (AP) typically manage?

A) It connects only to wireless networks.
B) It can connect devices to both wireless and wired LANs.
C) It connects to Bluetooth devices only.
D) It functions exclusively with mobile networks.

Answer 59

B

Question 60

How is data transmitted between wireless computers through an AP?

A) The data is sent directly from one computer to another without going through the AP.
B) Data is transmitted once directly to the destination.
C) Data is transmitted twice; first to the AP, then from the AP to the destination.
D) Data is stored in the AP before being sent to the destination at a scheduled time.

Answer 60

C

Question 61

7. An access point (AP) is required to connect a WLAN to a wired network

Answer 61

T

Question 62

An access point ensures that all computers within range of the access point can
communicate with each other,

Answer 62

T

Question 63

hy should a server not be placed on a WLAN according to the description?

A) Because it increases the cost of network infrastructure.
B) Because it can directly communicate with client computers without an AP.
C) Because client computers must communicate via an AP, making direct access impossible.
D) Because servers are incompatible with wireless networks.

Answer 63

C

Question 64

What is a recommended network placement for servers in relation to WLANs and why?

A) On the WLAN, because it is easier to connect
B) Directly connected to APs for faster communication
C) On the wired portion of the LAN to ensure optimal connectivity
D) Outside the network for security reasons

Answer 64

C

Question 65

What is a significant advantage of using Power Over Ethernet (POE) with an AP in large enterprise environments?

A) It allows the AP to transmit data at higher speeds.
B) It reduces the need for external power supplies.
C) It enhances the security of data transmission.
D) It connects more devices than non-POE systems.

Answer 65

B

Question 66

How does Power over Ethernet (PoE) supply power to Access Points?

A) Through dedicated power lines within the network infrastructure
B) By using a separate inverter device that converts AC to DC power
C) Power is supplied through the Ethernet cable using unused wires
D) Power is wirelessly transmitted from the main server

Answer 66

C. Cat 5/5e

Question 67

What type of cable is required for deploying PoE APs?
a) Cat 3 cable
b) Cat 5/5e cable
c) Fiber optic cable
d) Coaxial cable

Answer 67

B

Question 68

Where can PoE APs be deployed due to their advantage?
a) Only in locations with power outlets nearby
b) Only in locations with existing network infrastructure
c) Anywhere Cat 5/5e cable can be run
d) Only in locations with fiber optic connectivity

Answer 68

C

Question 69

What type of environment is typically associated with a Small Office/Home Office (SOHO) Access Point (AP)?
a) Corporate office
b) Industrial facility
c) Residential or small business setting
d) Data center

Answer 69

C

Question 70

How is a SOHO Access Point (AP) typically connected to the local area network (LAN)?
a) Via a wireless connection
b) Through a fiber optic cable
c) Using a wired Ethernet connection
d) By satellite link

Answer 70

C

Question 71

How is power supplied to a SOHO Access Point (AP)?
a) Through Power over Ethernet (PoE)
b) Via a separate power supply connected to a regular electrical outlet
c) Solar power
d) Battery power

Answer 71

B

Question 72

What type of antennas might a SOHO Access Point (AP) feature?
a) Directional antennas
b) Satellite dish antennas
c) Omnidirectional antennas
d) Parabolic antennas

Answer 72

C

Question 73

In a SOHO environment, where would you typically find the antennas of an Access Point (AP)?
a) Hidden within the device casing
b) Mounted on the walls
c) Sticking up above the AP
d) Attached to the LAN cable

Answer 73

C

Question 74

. __________ antennas transmit the signal in all directions.
a. directional
b. microware
c. omnidirectional
d. radio
e. vertical

Answer 74

C

Question 75

Which type of antenna is commonly used by most Access Points (APs)?
a) Directional antennas
b) Parabolic antennas
c) Omnidirectional antennas
d) Yagi antennas

Answer 75

C

Question 76

5. __________ antennas project a signal in only one direction and are most often used
   on the inside of an exterior wall pointing to the inside of the building for security
   reasons.
   a. directional
   b. microware
   c. omnidirectional
   d. radio
   e. vertical

Answer 76

A

Question 77

What is the purpose of pointing directional antennas inward towards a building?
a) To reduce interference from other devices
b) To increase signal strength outside the building
c) To keep the signal inside the building and increase range
d) To minimize power consumption

Answer 77

C

Question 78

. Directional antennas signals are much stronger than omnidirectional antennas.

Answer 78

T

Question 79

Directional antennas produce a stronger signal over longer distances than
omnidirectional antennas.

Answer 79

T

Question 80

Most access points (AP) deployed in wireless LANs use directional antennas

Answer 80

F

Question 81

How does the placement of directional antennas on the inside of an exterior wall contribute to reducing security issues?
a) By increasing the number of access points
b) By encrypting the transmitted data
c) By focusing the signal inside the building
d) By broadcasting the signal in all directions

Answer 81

C

Question 82

What role does a wireless router play in Small Office/Home Office (SOHO) environments?
a) Providing only wired connectivity
b) Serving as a wireless Access Point (AP) only
c) Combining the functions of a wireless AP and a router
d) Acting solely as a switch

Answer 82

C

Question 83

Which component is commonly included in wireless routers for SOHO environments?
a) 10Base-T switch
b) 1000Base-T switch
c) Fiber optic transceiver
d) Coaxial cable connector

Answer 83

B

Question 84

What functions does a wireless router typically combine?
a) Router and firewall
b) Router, switch, and modem
c) Router, Access Point (AP), and switch
d) Router and Access Point (AP)

Answer 84

C

Question 85

What is the primary responsibility of a wireless Access Point (AP)?
a) Providing wired connectivity
b) Providing wireless connectivity within a network
c) Managing network traffic
d) Acting as a firewall

Answer 85

B

Question 86

What is the primary role of a Network Operating System (NOS)?
A) To manage individual computer hardware
B) To control and manage a Local Area Network (LAN)
C) To provide security to web applications
D) To enhance graphic performance

Answer 86

B. it is a software

Question 87

Which type of software runs on network servers under a Network Operating System?
A) Client NOS
B) Server NOS
C) Desktop OS
D) Mobile OS

Answer 87

B

Question 88

What functions does the Server NOS perform?
A) Data link, network, and application layer functions
B) Presentation and session layer functions
C) Only application layer functions
D) Only physical layer functions

Answer 88

A

Question 89

Where does Client NOS software typically run?
A) On network servers
B) On network clients
C) On mobile devices exclusively
D) On external storage devices

Answer 89

B

Question 90

What is a primary feature of Client NOS?
A) It manages the hardware of the server.
B) It performs functions associated with data link and network layers.
C) It replaces the computer’s own operating system.
D) It serves web pages to external networks.

Answer 90

B

Question 91

What compatibility feature is most NOS known for?
A) They allow all types of computers to connect to the internet.
B) They enable different types of computers to function on the same network.
C) They restrict the network to only one type of computer.
D) They provide faster processing power for all computers.

Answer 91

B

Question 92

In many cases, what is included with the operating system itself?
A) Client NOS software
B) Server NOS software
C) Proprietary security solutions
D) Dedicated graphics drivers

Answer 92

A

Question 93

The NOS software for the server computer provides the physical, data link, and
network layer functions

Answer 93

F. Data Link, Network and Application

Question 94

9. _____________ is the software that controls the network.
   a. Network Operating System
   b. Client Operating System
   c. Embedded Operating System
   d. Network Control System
   e. Network Software System

Answer 94

A

Question 95

The server version of the Network Operating System does not:
a. provide the software that performs the functions associated with the physical
layer.
b. provide the software that performs the functions associated with the data link
layer.
c. provide the software that performs the functions associated with the application
layer.
d. provide the software that performs the functions associated with the network
layer.
e. usually provide the software that performs the functions associated with the
computer’s own operating system.

Answer 95

A

Question 96

What does the client version of the NOS interact with?
a) Only the network hardware
b) Application software and the computer’s own operating system
c) Only the application software
d) Only the server version of the NOS

Answer 96

B

Question 97

Which component is typically included in the server version of the NOS?
a) Application software
b) Network hardware
c) The computer’s own operating system
d) Only the client version of the NOS

Answer 97

C

Question 98

What is the primary function of NOS server software?

A) To replace client operating systems
B) To enable operations such as file,database and print services on a server
C) To increase the storage capacity of networked computers
D) To provide personal firewall and antivirus solutions

Answer 98

B

Question 99

What does NOS server software replace in a server setup?

A) The hardware interface
B) The network cables
C) The normal operating system
D) The application software on clients

Answer 99

C

Question 100

Why does NOS server software generally offer better performance and faster response times?

A) Because it handles more functions than a normal operating system
B) Because it is optimized for a limited range of operations
C) Because it supports more users than traditional operating systems
D) Because it has a larger storage capacity

Answer 100

B

Question 101

Which of the following tasks can NOS server software execute according to the description?

A) Sending emails to clients
B) Executing a database request and sending the result to the client
C) Enhancing the graphical interface of the server
D) Installing software applications on client computers

Answer 101

B

Question 102

Which of the following functions does NOS Server Software NOT perform?
a) Network functions
b) Operating system functions
c) Application development
d) Responding to client requests

Answer 102

C

Question 103

Which of the following are commonly used Network Operating Systems (NOS) server software?

A) Android and iOS
B) Windows Server and Linux
C) MacOS and Chrome OS
D) Ubuntu and Fedora

Answer 103

B

Question 104

What is the primary function of NOS client software?
a) Interacts with network servers
b) Handles all network functions
c) Manages client’s operating system
d) Facilitates communication between client applications

Answer 104

B

Question 105

Which of the following is NOT a role of NOS client software?
a) Interacting with client’s own OS
b) Handling network functions
c) Managing server resources
d) Interacts with many application software installed on client
e) Access Network resources

Answer 105

C

Question 106

Which operating system commonly includes built-in NOS client software?
a) macOS
b) Linux
c) Windows
d) Android

Answer 106

C

Question 107

What does NOS client software enable clients to do?
a) Operate network servers
b) Access network resources
c) Manage network security
d) Develop network protocols

Answer 107

B

Question 108

One of the most important functions of Network Operating System (NOS) is a
directory service

Answer 108

T

Question 109

_____________ provide information about resources on the network that are
available to the users, such as shared printers, file servers and application software.
a. Network Services
b. Directory Services
c. Client Services
d. Computing Services
e. Remote Access Services

Answer 109

B

Question 110

Which company developed Active Directory Service (ADS)?
a) Apple
b) Microsoft
c) Google
d) IBM

Answer 110

B

Question 111

The term “domain controller” is a name commonly used to refer to a Microsoft
directory services server

Answer 111

T. aka active directory service ( ADS)

Question 112

What is the role of an ADS server ( domain controllers) in a network?
a) Hosting websites
b) Managing domain names
c) Resolving address information and managing authorization
d) Providing email services

Answer 112

C. works like DNS service in tcp/ip

Question 113

“A _________ is a group of centrally organized, related resources.
a. workgroup
b. domain
c. server
d. client
e. sharepoint

Answer 113

B

Question 114

How are network resources typically organized within ADS?
a) Alphabetically
b) In a hierarchical tree structure
c) Based on IP addresses
d) Randomly

Answer 114

B

Question 115

What does a domain represent in the ADS hierarchical structure?
a) A group of unrelated resources
b) A single network device
c) A group of related resources
d) A network protocol

Answer 115

C

Question 116

A hierarchical tree of active directory domains within one organization that is linked
to other trees in the organization is called a/n ___________.
a. ADS
b. domain
c. forest
d. tree
e. NDS

Answer 116

C

Question 117

What protocol does a client computer typically use to communicate with the ADS domain controller to view available resources?
a) FTP
b) SMTP
c) LDAP
d) HTTP

Answer 117

C

Question 118

LDAP is an industry standard directory protocol.

Answer 118

T

Question 119

What is the primary function of the ADS domain controller when it receives an LDAP request?
a) Encrypting network traffic
b) Resolving textual names to network addresses
c) Managing DNS settings
d) Configuring network protocols

Answer 119

B

Question 120

What information does the ADS domain controller provide to the client computer upon successful authorization?
a) Contact information for the resource
b) Encryption keys for secure communication
c) Instructions on accessing the resource physically
d) Access to additional network resources

Answer 120

A

Question 121

A hardware device that is not included in a network profile cannot be accessed by
another computer on the network

Answer 121

T

Question 122

Network profile refers to what resources on each server are available on the network
for use by other computers and which devices or people are allowed access on the
network.

Answer 122

T

Question 123

4. A __________ indicates what resources on each server are available on the network
   for use by other computers and what people are allowed what access to the network.
   a. user profile
   b. user access log
   c. network profile
   d. network operating system
   e. server allocation list

Answer 123

C

Question 124

When is a network profile typically configured?
a) Whenever a new device is added to the network
b) When the network is established
c) On a daily basis
d) When a network issue occurs

Answer 124

B

Question 125

What happens if a device is not included in the network profile?
a) It automatically gets added to the network
b) It cannot be used by other computers on the network
c) Its performance is optimized
d) It becomes accessible to all computers on the network

Answer 125

B

Question 126

What is a common requirement for granting network access to resources?
a) Encryption of network traffic
b) Authentication using biometrics
c) Password authentication
d) MAC address filtering

Answer 126

C

Question 127

What happens if a user logs in with an incorrect access code on a LAN?
a) They are granted access to all resources
b) Their access code gets reset automatically
c) They are denied access to the network
d) They are prompted to enter another access code

Answer 127

C

Question 128

What additional security measure is mentioned in the passage?
a) Network encryption
b) User authentication
c) Firewall configuration
d) Network bandwidth management

Answer 128

B

Question 129

What purpose do audit files serve in LANs?
a) Tracking network usage and resource access
b) Storing backup copies of network profiles
c) Configuring network protocols
d) Monitoring network bandwidth usage

Answer 129

a

Question 130

Which entities were involved in the original development of Wired Ethernet?
a) Microsoft, Apple, and IBM
b) Google, Facebook, and Amazon
c) DEC, Xerox, and Intel
d) Cisco, Juniper, and HP

Answer 130

C

Question 131

What standardization body standardized Wired Ethernet?
a) IEEE
b) IETF
c) ISO
d) ANSI

Answer 131

A

Question 132

At which layer of the OSI model does Wired Ethernet operate?
a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4

Answer 132

B

Question 133

What does topology refer to in the context of networking?
a) The speed of data transmission
b) The physical location of network devices
c) The geometric layout of the network
d) The type of network cables used

Answer 133

C

Question 134

What does logical topology describe?
a) The physical installation of the network
b) How the network works conceptually
c) The speed of network devices
d) The physical location of network devices

Answer 134

B

Question 135

What does physical topology define?
a) How the network works conceptually
b) The logical flow of data in the network
c) How the network is physically installed
d) The logical organization of network devices

Answer 135

C

Question 136

Hub-based Ethernet is seldom used by companies today.

Answer 136

T

Question 137

The type of logical topology that hub-based Ethernet uses is a:
a. ring
b. bus
c. star
d. mesh
e. interconnected

Answer 137

B

Question 138

How are computers interconnected in hub-based Ethernet?
a) Each computer connects directly to all other computers
b) All computers are connected to a central hub
c) Computers form a closed loop
d) Computers connect in a random pattern

Answer 138

B

Question 139

What does the Ethernet software on each computer do before processing incoming frames in hub-based Ethernet?
a) Checks the IP address
b) Checks the physical layer address
c) Checks the MAC address
d) Checks the subnet mask

Answer 139

C

Question 140

What is the physical topology of an Ethernet LAN when using a hub?
a) Bus topology
b) Star topology
c) Mesh topology
d) Ring topology

Answer 140

B

Question 141

How are all computers connected in hub-based Ethernet?
a) Through separate circuits
b) Through a single half-duplex circuit known as the bus
c) Through a full-duplex circuit
d) Through a mesh network

Answer 141

B

Question 142

How does a computer in hub-based Ethernet determine if a frame is intended for it?
a) By checking the IP address
b) By checking the physical layer address
c) By checking the subnet mask
d) By checking the MAC address

Answer 142

D

Question 143

What is the term used to describe the shared multipoint circuit in hub-based Ethernet?
a) Collision domain
b) Broadcast domain
c) Switching domain
d) Routing domain

Answer 143

A

Question 144

A collision on a bus circuit means that two computers on that circuit have transmitted
at the same time.

Answer 144

T

Question 145

What action must other computers take when one computer transmits data in hub-based Ethernet?
a) They must continue transmitting
b) They must immediately stop transmitting
c) They must switch to a different channel
d) They must increase their transmission power

Answer 145

B

Question 146

Why is security a problem in hub-based Ethernet?
a) Because of the complexity of the network
b) Because any frame can be read by any computer in the same collision domain
c) Because of the limited bandwidth
d) Because of the high cost of implementatio

Answer 146

B

Question 147

Wireless Ethernet functions similarly to hub-based Ethernet.

Answer 147

T

Question 148

What is the predominant device used in most corporate Ethernet installations today?
a) Hubs
b) Routers
c) Switches
d) Repeaters

Answer 148

C

Question 149

What is the logical and physical topology of Ethernet when utilizing switches?
a) Bus
b) Star
c) Ring
d) Mesh

Answer 149

B

Question 150

How do switches differ from hubs in terms of circuit management?
a) Switches manage shared circuits
b) Switches manage dedicated point-to-point circuits
c) Switches do not manage circuits
d) Switches manage circular circuits

Answer 150

B

Question 151

What type of circuits do switches support?
a) Half-duplex circuits
b) Circular circuits
c) Shared circuits
d) Full-duplex circuits

Answer 151

D

Question 152

What is the primary advantage of full-duplex circuits supported by switches?
a) They support multiple devices on the same circuit
b) They enable simultaneous sending and receiving
c) They reduce network latency
d) They eliminate the need for collision detection

Answer 152

B

Question 153

A forwarding table tells a switch which port it should send out a packet to get to the
destination computer.

Answer 153

T

Question 154

What is the purpose of a forwarding table in a switch?A) To list the IP addresses of connected devices
B) To list the Ethernet addresses of connected devices
C) To manage routing between different networks
D) To prioritize network traffic

Answer 154

B

Question 155

How does a switch determine where to forward a received frame?
A) By analyzing the Layer 3 network address
B) By searching the ARP table
C) By matching the Layer 2 destination address with entries in the forwarding table
D) By consulting the routing table

Answer 155

C

Question 156

What does a switch do when it receives a frame?
A) It broadcasts the frame to all connected devices
B) It discards the frame if the destination address is not found
C) It reads the Layer 2 destination address and forwards the frame to the corresponding port based on the forwarding table
D) It analyzes the Layer 3 destination address and forwards the frame accordingly

Answer 156

C

Question 157

How does a switch help in network management?
A) By providing access control lists
B) By facilitating communication between different VLANs
C) By maintaining a forwarding table for efficient packet delivery
D) By configuring IP addresses for connected devices

Answer 157

C

Question 158

What is the role of a switch in relation to the collision domain?
A) It extends the collision domain to encompass multiple networks
B) It creates a separate collision domain for each connected device
C) It breaks up the collision domain by forwarding frames only to the intended recipient’s port
D) It consolidates collision domains to improve network efficiency

Answer 158

C

Question 159

When a switch receives an Ethernet frame with a destination address that is not in its
forwarding table, the switch will broadcast the frame out all of its other ports.

Answer 159

T

Question 160

How does a switch learn about connected computers’ addresses?
A) By querying the ARP table
B) By broadcasting frames to all ports
C) By reading the source data link layer address of incoming frames
D) By consulting the routing table

Answer 160

C

Question 161

What action does a switch take if it encounters a destination address not in its forwarding table?
A) It drops the frame
B) It forwards the frame to all ports
C) It consults the routing table for further instructions
D) It broadcasts the frame to all ports

Answer 161

D

Question 162

What triggers the update of the forwarding table in a switch?
A) Receiving an ACK or NAK from the addressed computer
B) Rebooting the switch
C) Connecting a new device to the network
D) Sending a broadcast frame to all ports

Answer 162

A

Question 163

What happens to entries for inactive computers in the forwarding table?
A) They are immediately removed
B) They are retained indefinitely
C) They are removed after a period of inactivity
D) They are prioritized over active connections

Answer 163

C

Question 164

What behavior does a switch exhibit as its forwarding table becomes more complete?
A) It drops incoming frames
B) It broadcasts frames to all ports
C) It forwards frames only to the appropriate port
D) It reverts to hub-like functionality

Answer 164

C. Acting like more switch which the foward the frame

Question 165

How long does it typically take for a switch to learn most addresses and match them to port numbers?
A) Hours
B) Days
C) Minutes
D) Seconds

Answer 165

C

Question 166

What is the typical timeframe for removing entries of inactive computers from the forwarding table?
A) 60 seconds
B) 120 seconds
C) 300 seconds
D) 600 seconds

Answer 166

C

Question 167

Why are active connections prioritized in a switch’s forwarding table?
A) To conserve memory space
B) To improve network security
C) To enhance switch performance
D) To reduce broadcast traffic

Answer 167

C

Question 168

With layer-2 switched Ethernet, the switch uses a forwarding table to switch the
frame to the correct circuit/computer.

Answer 168

T

Question 169

With switched Ethernet, it has forwarding tables in which entries are learned over
time

Answer 169

T

Question 170

A switch uses a _____________ that is very similar to a routing table used in a router.
a. cable plan
b. forwarding table
c. network server
d. reversing table
e. switching mullion

Answer 170

B

Question 171

. Which of the following is not true about layer-2 switched Ethernet?
a. A switch replaces the hub.
b. The physical topology is the same as the physical topology of shared Ethernet: a
ring.
c. The logical topology is a star.
d. The switch uses a forwarding table to switch the frame to the correct
circuit/computer.
e. The switch chooses which frame to transmit first if it receives more than one
frame destined for the same computer at the same time, and stores the other
frame(s) temporarily.

Answer 171

B

Question 172

Cut-through switching has fewer errors than store and forward switching.

Answer 172

F

Question 173

What is a characteristic of cut-through switching?
A) It waits for the entire frame to be received before transmission.
B) It checks the frame’s integrity before transmission.
C) It introduces high latency in network performance.
D) It starts transmitting after reading the destination address, without waiting for the entire frame

Answer 173

D

Question 174

What is the primary advantage of cut-through switching?
A) Reduced waste capacity
B) Increased reliability
C) Lower latency
D) Enhanced error checking

Answer 174

C

Question 175

What is a potential drawback of cut-through switching?
A) Reduced network performance
B) Increased risk of transmitting erroneous frames
C) Improved frame integrity
D) Lower data rates on outgoing circuits

Answer 175

B. waste capacity

Question 176

When is cut-through switching most suitable?
A) When there is a need for rigorous error checking.
B) When there is a requirement for varying data rates between incoming and outgoing circuits.
C) When low latency and fast network performance are prioritized.
D) When the incoming circuit must have the same data rate as the outgoing circuit.

Answer 176

D

Question 177

Store and forward switching may only be used when the incoming and outgoing data
circuit have the same data rate

Answer 177

F

Question 178

What is a characteristic of store-and-forward switching?
A) It starts transmitting after reading the destination address.
B) It discards frames immediately upon detection of errors.
C) It performs error control after transmitting the frame.
D) It waits until the whole frame is received before transmission.

Answer 178

D

Question 179

How does store-and-forward switching affect network latency?
A) It significantly reduces network latency.
B) It increases network latency but improves reliability.
C) It has no effect on network latency.
D) It introduces network latency but reduces errors

Answer 179

B

Question 180

What happens if errors are found in a frame during store-and-forward switching?
A) The switch discards the frame.
B) The switch attempts to correct the errors before forwarding the frame.
C) The frame is forwarded without error correction.
D) The switch broadcasts the frame to all ports.

Answer 180

A

Question 181

What is a primary advantage of store-and-forward switching?
A) Lower latency
B) Reduced risk of transmitting erroneous frames
C) Increased waste capacity
D) Faster network performance

Answer 181

B

Question 182

In what scenario is store-and-forward switching most suitable?
A) When there’s a need for low latency and fast network performance
B) When there’s a requirement for varying data rates between incoming and outgoing circuits
C) When error control is prioritized over latency
D) When the incoming circuits may have different data rates than the outgoing circuit

Answer 182

D

Question 183

How does store-and-forward switching handle frames with different data rates between incoming and outgoing circuits?
A) It discards frames with different data rates.
B) It converts the data rates before forwarding the frames.
C) It buffers frames until they can be transmitted at the outgoing circuit’s rate.
D) It forwards frames immediately without considering data rates.

Answer 183

C

Question 184

What is the primary reason for store-and-forward switching to wait until the whole frame is received before transmission?
A) To reduce network latency
B) To perform error control
C) To prioritize high-speed data transmission
D) To minimize the waste of network capacity

Answer 184

B

Question 185

What is a characteristic of fragment-free switching?
A) It reads the entire frame before transmission.
B) It discards frames with errors in the header.
C) It transmits frames only after the entire frame has been received.
D) It reads the first 64 Bytes of the frame before transmission.

Answer 185

D

Question 186

How does fragment-free switching mitigate errors in frames?
A) By discarding frames with any errors
B) By transmitting frames immediately after the header is verified
C) By performing error correction on the entire frame
D) By buffering frames until errors are corrected

Answer 186

B

Question 187

Which of the following is a mode in which a switch reads in the first 64 bytes of the
Ethernet frame and then begins forwarding out the frame on an outgoing port?
a. fast learning switching
b. routing switching
c. fragment-free switching
d. store switching
e. cut switching

Answer 187

C

Question 188

Which of the following is not true about CSMA/CD?
a. The acronym refers to Carrier Sense Multiple Access with Collision Detection
b. It is used in token ring protocol LANs
c. It is a contention-based media access control technique
d. When a collision has occurred, the computers that wish to transmit wait a random
amount of time after a colliding message before attempting to retransmit
e. Computers on the circuit ‘listen’ before transmitting

Answer 188

B

Question 189

Why does Ethernet require Media Access Control (MAC)?
A) To manage routing between different networks
B) To prevent collisions and manage access to the network medium
C) To prioritize network traffic based on destination addresses
D) To encrypt data transmissions over the network

Answer 189

B. Ethernet needs MAC because Ethernet still must operate on a multipoint circuit

Question 190

What happens if two computers on an Ethernet network transmit at the same time?
A) Their transmissions are merged into a single frame.
B) Their transmissions collide and become garbled.
C) The network switches to a different media access method.
D) The network automatically prioritizes one transmission over the other.

Answer 190

B

Question 191

What does a computer do before transmitting a frame in a CSMA/CD-based Ethernet network?
A) It immediately transmits the frame without checking the network status.
B) It waits for a random amount of time before transmitting.
C) It checks if no other devices are transmitting before starting its transmission.
D) It sends a signal to request permission for transmission from the network administrator.

Answer 191

C

Question 192

How does CSMA/CD work to prevent collisions in Ethernet networks?
A) It assigns fixed time slots to each device for transmission.
B) It prioritizes certain devices over others based on MAC addresses.
C) It allows devices to sense the network before transmitting and detects collisions if they occur.
D) It encrypts all data transmissions to prevent unauthorized access.

Answer 192

C

Question 193

How do computers respond after a collision has occurred in a CSMA/CD-based Ethernet network?
A) They continue transmitting regardless of the collision.
B) They stop transmitting and wait for a predetermined time before reattempting transmission.
C) They increase their transmission power to overpower other devices on the network.
D) They switch to a different media access method to avoid future collisions.

What is the primary goal of CSMA/CD in Ethernet networks?

Answer 193

B

Question 194

What is the primary goal of CSMA/CD in Ethernet networks?
A) To prioritize certain devices over others based on their MAC addresses.
B) To minimize the occurrence and impact of collisions during data transmission.
C) To encrypt all data transmissions to ensure network security.
D) To allocate fixed time slots to each device for transmission, ensuring fair access to the network medium.

Answer 194

B

Question 195

What is the primary function of Carrier Sense (CS) in computer networks?
a) To ensure data encryption
b) To listen to the bus for transmissions
c) To manage network addresses
d) To prioritize data packets

Answer 195

B

Question 196

When does a computer employing Carrier Sense (CS) decide to transmit data?
a) When another computer is transmitting
b) When no one else is transmitting
c) Randomly
d) Only when it has the highest priority

Answer 196

B

Question 197

What is the purpose of Carrier Sense (CS) in network communication?
a) To prevent data loss
b) To detect and avoid collisions
c) To increase data transfer speed
d) To identify network congestion

Answer 197

D

Question 198

What is the potential drawback of relying solely on Carrier Sense (CS) for network communication?
a) Slower data transmission
b) Increased chances of data corruption
c) Higher network congestion
d) Possibility of collision even with collision detection

Answer 198

D. when 2 computers transmit as the same time

Question 199

What is the primary characteristic of Multiple Access (MA) in network communication?
a) It restricts access to a single computer at a time.
b) It allows access to the network medium by multiple computers simutaneously
c) It limits network access to a specific time interval.
d) It prioritizes access based on computer hierarchy.

Answer 199

B

Question 200

What is the primary function of Collision Detection (CD) in network communication?
a) To encrypt data packets
b) To detect and resolve collisions during transmission
c) To prioritize data packets based on their destination
d) To manage network addresses

Answer 200

B

Question 201

How does a computer employing Collision Detection (CD) react when it detects a signal other than its own while transmitting?
a) It continues transmitting without any action.
b) It sends a jamming signal to stop other computers from transmitting.
c) It encrypts its data packets.
d) It waits for acknowledgment from the recipient before continuing transmission.

Answer 201

B

Question 202

What action does a computer take after sending a jamming signal in Collision Detection (CD)?
a) It resumes transmission immediately.
b) It waits for a random amount of time before retransmitting.
c) It switches to a different network medium.
d) It shuts down to avoid further collisions.

Answer 202

B

Question 203

How does Collision Detection (CD) decrease the probability of a second collision?
a) By increasing the transmission speed
b) By decreasing the number of computers on the network
c) By sending a jamming signal to stop other transmissions
d) By introducing a random backoff time before retransmission

Answer 203

D

Question 204

The three latest versions of Ethernet run at speeds of 1Gbps, 10Gbps, and 50 Gbps.

Answer 204

F. 10Mbps, 100Mbps,1Gbps

Question 205

1000Base-LX is a version of 1000Base-T than runs on four pairs of CAT 5 cable.

Answer 205

F. is a version of 1000Base-F

Question 206

. _________ is not a type of Ethernet specification.
a. 100Base-T
b. 10GbE
c. 1000Base-T (1GbE)
d. 10Base-T
e. Securenet

Answer 206

E

Question 207

. ________ is a hybrid version of Ethernet that uses either 10Base-T, 100Base-T, or
1000Base-T.
a. Mullion Ethernet
b. Base-T Ethernet
c. 10/100/1000 Ethernet
d. Token ring Ethernet
e. FDDI Ethernet

Answer 207

C

Question 208

. 100 Base-T:
a. can run at either full- or half-duplex
b. is one of the oldest forms of Ethernet
c. is one of the slowest forms of Ethernet
d. can only be used over coaxial cables
e. has only one version, 100Base-SLCX

Answer 208

A

Question 209

100Base-T:
a. supports 100 Mbps data rate
b. is inexpensive
c. runs on twisted pair
d. is more dominant than token ring
e. all of the answers are correct

Answer 209

E