Introduction to Networking Flashcards
1
Q
Which type of service supports e-mail?
A
communications
2
Q
Which statement describes a certification drawback?
A
Certification value may be lessened due to the number of people obtaining them.
3
Q
Hands-on experience to improve networking hardware and software skills is important when attempting to enter the networking field.
A
True
4
Q
A ____ facilitates communication and resource sharing between other computers on the network.
A
server
5
Q
Clients on a client/server network share their resources directly with each other.
A
False
6
Q
Security auditing is handled by ____.
A
management services
7
Q
Dependability is a characteristic of ____.
A
soft skills
8
Q
A ____ network connects clients and servers from multiple buildings.
A
MAN
9
Q
Hardware diagnosis and failure alert are handled by ____.
A
management services
10
Q
____ services allow remote users to connect to the network.
A
Access
11
Q
A common way of sharing resources on a peer-to-peer network is by modifying the ____ controls using the computer’s operating system.
A
file-sharing
12
Q
Which network model ensures that no computer on the network has more authority than another?
A
peer-to-peer
13
Q
The phenomenon of offering multiple types of communications services on the same network is known as ____.
A
convergence
14
Q
____ are the distinct units of data that are exchanged between nodes on a network.
A
Data packets
15
Q
A ____ is a specialized device that allows multiple networks or multiple parts of one network to connect and exchange data.
A
connectivity device
16
Q
A ____ network is confined to a relatively small space.
A
LAN
17
Q
Very large peer-to-peer networks have emerged to take advantage of the Internet.
A
True
18
Q
Often, separate LANs are interconnected and rely on several ____ running many different applications and managing resources other than data.
A
servers
19
Q
____ provide a Web-based client for checking e-mail.
A
Mail servers
20
Q
Which network topology is the most common?
A
star
21
Q
To prepare to enter the networking field, a student should master a number of general networking technologies.
A
True
22
Q
____ services refer to the capability of a server to share data files, applications, and disk storage space.
A
File
23
Q
Which certification requires candidates to pass lab exams?
A
Cisco CCIE
24
Q
Which statement describes an advantage of networks?
A
Networks enable multiple users to share resources.
25
\_\_\_\_ networks are the most popular type of network for medium- and large-scale organizations.
Client/server
26
Each network node has ____ types of addresses.
two
27
Which IEEE standard describes Ethernet?
802.3
28
Transport layer protocols break large data units into \_\_\_\_.
segments
29
The ____ is a fixed number associated with a device’s NIC.
physical address
30
Standards assist in network design.
True
31
The goal of ____ is to establish international technological standards to facilitate the global exchange of information and barrier free trade.
ISO
32
In which OSI model layer does IP operate?
Network
33
In which OSI model layer do hubs operate?
Physical
34
The ____ is a specialized United Nations agency that provides developing countries with technical expertise and equipment to advance those nations’ technological bases.
ITU
35
Which Data Link sublayer manages flow control?
LLC
36
Standards define the ____ performance of a product or service.
minimum acceptable
37
Which OSI model layer manages data encryption?
Presentation
38
IEEE has divided the Transport layer into two sublayers.
False
39
In which OSI model layer(s) do NICs operate?
Physical and Data Link
40
Which Data Link sublayer manages access to the physical medium?
MAC
41
\_\_\_\_ is the process of reconstructing segmented data.
Reassembly
42
All Transport layer protocols are concerned with reliability.
False
43
Which statement accurately describes the OSI model?
B) It describes a theoretical representation of what happens between two nodes communicating on a network.
44
Which IEEE standard describes specifications for wireless transmissions?
802.11
45
Network functions are associated with only one layer of the OSI model.
False
46
The process of determining the best path from Point A on one network to Point B on another is known as \_\_\_\_.
routing
47
\_\_\_\_ oversees the IAB (Internet Architecture Board).
ISOC
48
Which type of protocol is useful when data must be transferred quickly?
connectionless
49
In which OSI model layer does TCP operate?
Transport
50
Which OSI model layer initiates the flow of information?
Application
51
One of the most common transmission flaws affecting data signals is \_\_\_\_.
noise
52
\_\_\_\_ describes wiring that connects workstations to the closest telecommunications closet.
Horizontal wiring
53
The strength of an electrical signal is directly proportional to its frequency.
False
54
Modern LANs use ____ or higher wiring.
Cat 5
55
Which connector is used in RS-232 transmissions?
DB-25
56
\_\_\_\_ is a technology used with fiber-optic cable, which enables one fiber-optic connection to carry multiple light signals simultaneously.
WDM (wavelength division multiplexing)
57
The points where circuits interconnect with other circuits is known as \_\_\_\_.
cross-connect facilities
58
Many network problems can be traced to poor cable ____ techniques.
installation
59
Modulation can be used to make a signal conform to a specific pathway.
True
60
Ethernet is an example of a baseband system found on many LANs.
True
61
The data transmission characteristic most frequently discussed and analyzed by networking professionals is \_\_\_\_.
throughput
62
The distance between corresponding points on a wave’s cycle is called its \_\_\_\_.
wavelength
63
The most significant factor in choosing a transmission method is its \_\_\_\_.
throughput
64
The byte 00001110 means ____ on a digital network.
14
65
A digital signal composed of a pulse of positive voltage represents a \_\_\_\_.
1
66
The maximum distance a signal can travel and still be interpreted accurately is equal to a segment’s maximum length.
True
67
\_\_\_\_ describes a popular serial data transmission method.
EIA/TIA RS-232 (Recommended Standard 232)
68
Which term identifies a room containing connectivity for groups of workstations in its area?
telecommunications closet
69
When signals are free to travel in both directions over a medium simultaneously, the transmission is considered \_\_\_\_.
full-duplex
70
In modulation, a simple wave called a ____ wave, is combined with another analog signal to produce a unique signal that gets transmitted from one node to another.
carrier
71
Which term describes the hardware that makes up the enterprise-wide cabling system?
cable plant
72
In a ____ cable, the usual wire positions are exactly reversed in one of the two RJ-45 terminations.
rollover
73
The more twists per foot in a pair of wires, the more resistant the pair will be to \_\_\_\_.
cross talk
74
Serial refers to a style of data transmission in which the pulses that represent bits follow one another along a ____ transmission line.
single
75
Which standard is also known as structured cabling?
TIA/EIA Commercial Building Wiring Standard
76
All protocols are routable.
False
77
ICMP (Internet Control Message Protocol) reports on the success or failure of data delivery.
True
78
If a device does not know its own IP address, it can still use ARP.
False
79
If your network does not need or use APIPA, it must be uninstalled to avoid conflicts.
False
80
TCP is a(n) ____ subprotocol.
connection-oriented
81
A(n) ____ number is the address on a host where an application makes itself available to incoming or outgoing data.
port
82
\_\_\_\_ is more efficient than TCP for carrying messages that fit within one data packet.
UDP
83
A UDP header contains ____ fields.
four
84
The subprotocol that enables TCP/IP to internetwork - that is, to traverse more than one LAN segment and more than one type of network through a router is \_\_\_\_.
IP
85
\_\_\_\_ operates at the Network layer and manages multicasting.
IGMP
86
\_\_\_\_ ARP table entries are created when a client makes an ARP request that cannot be satisfied by data already in the ARP table.
Dynamic
87
In the TCP/IP protocol suite, ____ is the core protocol responsible for logical addressing.
IP
88
In IPv4 addressing, each IP address is a unique ____ number.
32-bit
89
In IPv4 addressing, an IP address whose first octet is in the range of 192–223 belongs to a Class ____ network.
C
90
In IPv4 addressing, a node with an IP address of 168.34.88.29 belongs to a Class ____ network.
B
91
In dotted decimal notation, a(n) ____ separates each decimal.
period
92
The default subnet mask for a Class B network is \_\_\_\_.
255.255.0.0
93
In most cases, BOOTP has been surpassed by the more sophisticated IP addressing utility, \_\_\_\_.
DHCP
94
A(n) ____ address represents any one interface from a group of interfaces, any one of which can accept a transmission.
anycast
95
In IPv6, each address contains a(n) \_\_\_\_, or a variable-length field at the beginning of the address that indicates what type of address it is.
Format Prefix
96
If the standard port number for the Telnet service is 23, a host whose IPv4 address is 10.43.3.87 has a socket address for Telnet of \_\_\_\_.
10.43.3.87:23
97
In the domain name www.google.com, ____ is the top-level domain (TLD).
com
98
\_\_\_\_ is a terminal emulation protocol used to log on to remote hosts using the TCP/IP protocol suite.
Telnet
99
\_\_\_\_ is a simple Application layer protocol used to synchronize the clocks of computers on a network.
NTP
100
\_\_\_\_ is a utility that can verify that TCP/IP is installed, bound to the NIC, configured correctly, and communicating with the network.
PING
101
Most Ethernet networks are based on the star topology.
True
102
The smallest LANs do not have a backbone.
False
103
A serial backbone is the simplest kind of backbone.
True
104
A network’s access method is its method of controlling how network nodes access the communications channel.
True
105
A physical topology \_\_\_\_.
depicts a network in broad scope
106
Without \_\_\_\_, a bus network would suffer from signal bounce.
terminators
107
In a ring network, each workstation acts as a(n) ____ for the transmission.
repeater
108
A complex combination of pure topologies is known as a ____ topology.
hybrid
109
The most common logical topologies are ____ and ring.
bus
110
A ____ is simply a linked series of devices.
daisy-chain
111
In packet switching, when packets reach their destination node, the node ____ them based on their control information.
reassembles
112
Collectively, MPLS labels are sometimes called a \_\_\_\_.
shim
113
All Ethernet networks, independent of their speed or frame type, use an access method called \_\_\_\_.
CSMA/CD
114
A ____ occurs when two transmissions interfere with each other.
collision
115
On an Ethernet network, a(n) ____ is the portion of a network in which collisions occur if two nodes transmit data at the same time.
collision domain
116
1000Base-T is a standard for achieving throughputs ____ times faster than Fast Ethernet over copper cable.
10
117
The 10GBase-T standard is considered a breakthrough for transmitting 10 Gbps over ____ medium.
twisted pair
118
The most common 1-Gigabit Ethernet standard in use today is \_\_\_\_.
1000Base-LX
119
1000Base-SX has a maximum throughput of \_\_\_\_.
1 Gbps
120
The 10-gigabit fiber optic standard with the shortest segment length is \_\_\_\_.
10GBase-SR
121
In the 10GBase-LR standard, the L stands for \_\_\_\_.
long reach
122
Given their long-distance capabilities, 10GBase-ER and 10GBase-EW are best suited for use on \_\_\_\_.
WANs
123
Within Ethernet frame types, the ____ signals to the receiving node that data is incoming and indicates when the data flow is about to begin.
preamble
124
The data portion of an Ethernet frame may contain ____ bytes of information.
46 to 1500
125
The Ethernet\_II frame type contains a 2-byte ____ field which differentiates it from the older Ethernet\_802.3 and Ethernet\_802.2 frame types.
type
126
IBM began developing the FireWire standard in the 1980s.
False
127
CompactFlash NICs are most frequently used to connect devices too small to handle PCMCIA slots.
True
128
It is best to perform connectivity tests on a computer connected to a live network.
False
129
Cut-through switches can detect corrupt packets.
False
130
Nearly all NICs contain a(n) \_\_\_\_, the device that transmits and receives data signals.
data transceiver
131
By far, the most popular expansion board NIC is one that uses a(n) ____ bus.
PCI
132
PCIe slots vary depending on the number of ____ they support.
lanes
133
CompactFlash is an example of a peripheral device attached to the computer’s ____ bus.
external
134
The primary difference between the two USB standards is \_\_\_\_.
speed
135
\_\_\_\_ is a set of data or instructions that has been saved to a ROM (read-only memory) chip (which is on the NIC).
Firmware
136
Each time a computer starts up, the device drivers for all its connected peripherals are loaded into \_\_\_\_.
RAM
137
If the ____ NIC LED indicator is blinking, the NIC is functioning and receiving frames.
RX
138
A(n) ____ is the circuit board wire over which a device issues voltage to signal this request.
interrupt
139
\_\_\_\_ is a type of microchip that requires very little energy to operate.
CMOS
140
The ____ is a simple set of instructions that enables a computer to initially recognize its hardware.
BIOS
141
The ____ setting specifies, in hexadecimal notation, which area of memory will act as a channel for moving data between the NIC and the CPU.
base I/O port
142
A NIC’s transmission characteristics are held in the adapter’s \_\_\_\_.
firmware
143
A ____ is a repeater with more than one output port.
hub
144
\_\_\_\_ hubs possess internal processing capabilities.
Intelligent
145
Switches can create ____ by grouping a number of ports into a broadcast domain.
VLANs
146
To eliminate the possibility of a broadcast storm, switches and bridges implement the \_\_\_\_.
STP (Spanning Tree Protocol)
147
Switches that operate anywhere between Layer 4 and Layer 7 are also known as ____ switches.
content
148
A ____ is a multiport connectivity device that directs data between nodes on a network.
router
149
\_\_\_\_ routing is a technique in which a network administrator programs a router to use specific paths between nodes.
Static
150
\_\_\_\_ are combinations of networking hardware and software that connect two dissimilar kinds of networks.
Gateways
151
Dial-up ISDN does not convert a computer’s digital signals to analog before transmitting them over the PSTN.
True
152
\_\_\_\_ is an updated, digital version of X.25 that also relies on packet switching.
Frame relay
153
\_\_\_\_ virtual computing allows a user on one computer, called the client, to control another computer, called the host or server, across a network connection.
Remote
154
At the customer’s demarcation point, either inside or outside the building, T-carrier wire pairs terminate with a \_\_\_\_.
smart jack
155
A ____ converts digital signals into analog signals for use with ISDN phones and other analog devices.
terminal adapter
156
The individual geographic locations connected by a WAN are known as \_\_\_\_.
WAN sites
157
A ____ aggregates multiple DSL subscriber lines and connects them to the carrier’s CO.
DSLAM
158
\_\_\_\_ is the standard for connecting home computers to an ISP via DSL or broadband cable.
PPPoE
159
Broadband cable requires many subscribers to share the same local line, thus raising concerns about ____ and actual (versus theoretical) throughput.
security
160
ATM is a WAN technology that functions in the Data Link layer.
True
161
The portion of the PSTN that connects any residence or business to the nearest CO is known as the \_\_\_\_.
local loop
162
Because WAN connections require routers or other Layer 3 devices to connect locations, their links are not capable of carrying ____ protocols.
nonroutable
163
ISDN PRI uses ____ B channels and one 64-Kbps D channel.
23
164
The PPTP VPN tunneling protocol is based on technology developed by Cisco.
False
165
The speed of a T-carrier depends on its ____ level.
signal
166
\_\_\_\_ is the preferred communications protocol for remote access communications.
PPP
167
The data rate of a particular SONET ring is indicated by its \_\_\_\_, a rating that is internationally recognized by networking professionals and standards organizations.
OC (Optical Carrier) level
168
In a star topology, a single connection failure will halt all traffic between all sites.
False
169
SONET’s extraordinary ____ results from its use of a double-ring topology over fiber-optic cable.
fault tolerance
170
\_\_\_\_ networking refers to dialing directly into a private network’s or ISP’s remote access server to log on to a network.
Dial-up
171
WANs typically send data over ____ available communications networks.
publicly
172
On most modern WANs, a ring topology relies on ____ rings to carry data.
redundant
173
What sets ATM apart from Ethernet is its ____ size.
fixed packet
174
A PSTN offers ____ security.
marginal
175
In a process called \_\_\_\_, two 64-Kbps ISDN B channels can be combined to achieve an effective throughput of 128 Kbps.
bonding
176
Wireless signals experience attenuation.
True
177
Wireless networks are laid out using the same topologies as wired networks.
False
178
If a station detects the presence of several access points, it will always choose the closest access point.
False
179
WiMAX is defined by the IEEE 802.11 standard.
False
180
In wireless communication, to exchange information, two antennas must be tuned to the same \_\_\_\_.
frequency
181
A directional antenna issues wireless signals along a(n) ____ direction.
single
182
In \_\_\_\_, a wireless signal splits into secondary waves when it encounters an obstruction.
diffraction
183
\_\_\_\_ is a most significant problem for wireless communications because the atmosphere is saturated with electromagnetic waves.
Interference
184
In ____ wireless systems, the result is a point-to-point link.
fixed
185
In ____ scanning, the station transmits a special frame, known as a probe, on all available channels within its frequency range.
active
186
A unique characteristic of the 802.11 data frame is its ____ field.
Sequence Control
187
The average geographic range for an 802.11a antenna is ____ meters.
20
188
\_\_\_\_ is the least popular WLAN standard.
802.11a
189
An 802.11g antenna has a geographic range of ____ meters.
100
190
\_\_\_\_ may use either the 2.4-GHz or 5-GHz frequency range.
802.11n
191
\_\_\_\_ is an 802.11n feature that allows two adjacent 20-MHz channels to be combined to make a 40-MHz channel.
Channel bonding
192
\_\_\_\_ is an 802.11n network feature allowing the combination of multiple frames into one larger frame.
Frame aggregation
193
Using Bluetooth version 2.0, communicating nodes can be as far as ____ meters apart.
30
194
\_\_\_\_ is a command-line function for viewing and setting wireless interface parameters and it is common to nearly all versions of Linux and UNIX.
iwconfig
195
If intermittent and difficult-to-diagnose wireless communication errors occur, ____ might be the culprit.
interference
196
LEO satellites orbit the Earth with an altitude as low as ____ miles.
100
197
\_\_\_\_ satellites are the type used by the most popular satellite Internet access service providers.
Geosynchronous orbiting
198
Satellite Internet access providers typically use frequencies in the C- or ____ bands.
Ku-
199
Dial return satellite Internet access is a(n) ____ technology.
asymmetrical
200
Satellite return Internet access is a(n) ____ technology.
symmetrical
