CompTIA Network+ 008 Certification All-in-One Exam Guide, 8th ED by Mike Meyers - CH Quizes Flashcards
Where does a Hub send data?
Only to the Receiving System
Only to the Sending System
To ALL the Systems connected to the Hub
Only to the Server
To ALL the Systems connected to the Hub
What uniquely identifies every NIC?
IP Address
Media Access Control Address
ISO Number
Packet ID Number
Media Access Control Address (MAC Address/Physical Address)
What Windows Utility do you use to find the MAC Address for a System?
ipconfig /all
ipcfg /all
ping
mac
ipconfig /all
A MAC Address is known as a _______ address?
IP
Logical
Physical
OEM
Physical
A NIC sends data in discrete chunks called ________?
Segments
Sections
Frames
Layers
Frames
The MAC Address of which of the following begins a Frame?
Receiving System
Sending System
Network
Router
Receiving System
Explanation:
A. The frame begins with the MAC address of the receiving NIC, followed by the MAC address of the sending NIC, followed, in turn, by type of encapsulated data, the data, and FCS.
A Frame ends with a special bit called the Frame Check Sequence (FCS). What does the FCS do?
Cycles data across the Network
Verifies that the MAC Addresses are correct
Verifies that the Data arrives correctly
Verifies that the IP Address is correct
Verifies that the Data arrives correctly
Which of the following is an Example of a MAC Address?
0-255
00-50-56-A3-04-0C
SBY3M7
192.168.4.13
00-50-56-A3-04-0C
Which Layer of the OSI Model controls the segmentation and reassembly of Data?
Application Layer
Presentation Layer
Session Layer
Transport Layer
Transport Layer
Which Layer of the OSI Model keeps track of a systems connections to send the right response to the right computer?
Application Layer
Presentation Layer
Session Layer
Transport Layer
Session Layer
Which of the following topologies required termination?
Star
Bus
Mesh
Ring
Bus
Explanation:
B. In a bus topology, all computers connected to the network via a main line. The cable had to be terminated at both ends to prevent signal reflection.
Star-Bus is an Example of _______ topology?
Transitional
System
Hybrid
Rampant
Hybrid
Of the topologies listed, which one is the most fault-tolerant?
Point-to-Point
Bus
Star
Ring
Star
What term is used to describe the interconnectivity of Network components?
Segmentation
Map
Topology
Protocol
Topology
Coaxial cables all have a ______ rating?
Resistance
WATT
Speed
Ohm
Ohm
Which of the following is a type of coaxial cable?
RJ-45
RG-6
BNC
Barrel
RG-6
Which Network topology connected nodes with a Ring of Cable?
Star
Bus
Ring
Mesh
Ring
Which Network topology is most commonly seen only in Wireless Networks?
Star
Bus
Ring
Mesh
Mesh
Which of the following is a Duplex fiber-optic connection?
LC
RJ-45
ST
SC
LC
Explanation:
A. LC = Local Connector, Of the options given, only the LC connector is designed for duplex fiber-optic. LC = Little Connector
LC and MT-RJ connectors are always duplex, meaning both the send and receive cables are attached.
You can certainly find SC connectors or sleeves to make them duplex too, so don’t get too caught up with which can be which.
What is the most common category of UTP used in new cabling installations?
Cat 3
Cat 5e
Cat 6
Cat 7
Cat 6
Ethernet Hubs took an incoming packet and _______ it out to the other connected ports?
amplified
repeated
filtered
distorted
repeated
What is at the begining of the Ethernet Frame?
MAC Address
Length
Preamble
CRC
Preamble
Explanation:
Preamble, a 7-byte series of alternating ones and zeroes followed by a 1-byte start frame delimiter or an 8-byte series of alternating ones and zeroes, always precedes a frame. The preamble gives a receiving NIC time to realize a frame is coming and to know exactly where the frame starts. The preamble is added by the sending NIC
What type of bus did 10Base-T use?
Bus
Ring
Star Bus
Bus Ring
Star Bus
Explanation:
10BASE-T Summary
• Speed 10 Mbps
• Signal type Baseband
• Distance 100 meters between the hub and the node
• Node limit No more than 1024 nodes per hub
• Topology Star-bus topology: physical star, logical bus
• Cable type Cat 3 or better UTP cabling with RJ-45 connectors
What was the max distance that could separate a 10Base-T node from its Hub?
50 m
100 m
185 m
200 m
100 m
When used for Ethernet, Unshielded Twisted Pair (UTP) uses what type of connector?
RG-58
RJ-45
RJ-11
RS-232
RJ-45
What was the max number of nodes that could be connected to a 10Base-T Hub?
1024
500
100
185
1024
Which of the following is NOT True of Crossover Cables?
They are a type of Twisted Pair cabling
They reverse the sending and receiving wire pairs
They are used to connect Switches
Both ends of a Crossover Cable are wired according to the TIA/EIA 568B Standard
Both ends of a Crossover Cable are wired according to the TIA/EIA 568B Standard
Which of the following connectors were used by 10Base-FL Cable? (Select Two)
SC
RJ-45
RJ-11
ST
SC
ST
Explanation: ST = Straight Tip Bayonet Connectors Untwist/Pull ST = Snap & Twisted
SC = Subscriber Connector
Square Connector
SC = Stick & Click
Which Networking devices can use the Spanning Tree Protocol (STP)?
Hubs
Media Converters
UTP Cables
Switches
Switches
What device directs packets based on MAC Addresses?
Router
Hub
Repeater
Switch
Switch
With 100Base-T, what is the max distance between the Switch and the Node?
1000 m
400 m
100 m
150 m
100 m
What type of cable and connector does 100Base-FX use?
Multimode Fiber with ST or SC Connectors
STP Cat 6 with RJ-45 Connectors
Single-Mode Fiber with MT-RJ Connectors
UTP Cat 5e with RJ-45 Connectors
Multimode Fiber with ST or SC Connectors
Which of the following connectors would you typically find with a 40 Gbe Installation?
LC
SFP
QSFP+
XSFP+
QSFP+
Explanation:
QSFP+ = Quad Small-Form Factor Pluggable Enhanced
- 4 Channel = Quad
- Enhanced means 10 Gbps per Channel = 40 Gbps
QSFP = Quad Small Form Factor Pluggable
- 4 Channel = Quad
- Larger than a SFP
- 4 Gbps = 1 Gbps x 4 Channels
What standard does IEEE 802.3ab describe?
1000Base-LX
1000Base-T
100Base-T
1000Base-SX
1000Base-T
What is the big physical difference between 1000Base-SX and 100Base-FX?
1000Base-SX commonly uses LC Connectors, where as 100Base-FX frequently use the SC Connector
1000Base-SX is Single-Mode, where as 100Base-FX is Multimode.
1000Base-SX uses the ST Connector exclusively.
There is NO difference.
1000Base-SX commonly uses LC Connectors, where as 100Base-FX freequently use the SC Connector
What is the max distance for 1000Base-LX without repeaters?
1 mile
2500 m
20,000 feet
5000 m
5000 m (5km)
What is a big advantage to using Fiber-Optic Cable?
Fiber is common glass, therefore it’s less expensive.
Fiber is not affected by EMI.
Making custom cable lengths is easier with Fiber.
All that orange Fiber looks impressive in the Network Closet
Fiber is not affected by EMI.
How many wire pairs does 1000Base-T use?
1
2
3
4
4
What is the standard connector for the 10 GbE Fiber standard?
ST
SC
MT-RJ
There is NO Standard
There is NO Standard
What is the max cable length of 10GBase-T on Cat 6?
55 m
100 m
20 m
70 m
55 m
Explanation:
With Cat 6, 10GBase-T is limited to 55 m.
Aside from outright breakage, what’s the primary worry with bending a fiber-optic cable too much?
Attenuation
Bonding
Light Leakage
Near-End crosstalk
Light Leakage
Which of the following enables you to use Multiple NICs in a computer to achieve a much better network bandwidth?
Linking
Port Aggregation
SLI
XING
Port Aggregation
How many pairs of wires are in a Cat 6-rated Cable?
2
4
8
It doesn’t specify.
4
A _______ organizes and protects the horizional cabling in telecommunications room?
Rack
Patch Panel
Outlet
110 Jack
Patch Panel
Which of the following would never be seen in an equipment rack?
Patch Panel
UPS
PC
All of the above may be seen in an equipment rack.
All of the above may be seen in an equipment rack.
What are Patch Cables used for? (Select Two)
To connect different telecomunications rooms.
To connect the Patch Panel to the Switch
They are used as Crossover Cables
They connect PCs to outlet boxes
To connect the Patch Panel to the Switch
They connect PCs to outlet boxes
Which of the following network technologies use UTP cabling in a Star Topology?
Crosstalk
Fiber Optics
1000Base-SX
1000Base-T
1000Base-T
Your first day on the job, you get a call from the owner complaining that her network connection is down. A quick check of the central Switch verifies that it’s in good working order, as is the boss’s PC. As luck would have it, your supervisor calls at just that time and tells you not to worry, she’ll be buy in a jiffy with her TDR to help root out the problem. What is she talking about?
Tune-Domain Resonator, her Network Tone Generator
Time-Detuning Resonator, her Network Testor
Time-Domain Reflectometer, her Network Tester
Time-Detail Resource, her Network Schematic
Time-Domain Reflectometer, her Network Tester
What two devices together enable you to pick a single cable out of a stack of cables? (Select Two)
Tone Aggregator
Tone Binder
Tone Generator
Tone Probe
Tone Generator
Tone Probe
Rack-mounted equipment has a height measured in what units?
Mbps
MBps
Inches
U
U
Which BEST describes the benefits of Managed Switches over Unmanaged Switches?
Manged Switches provide more options for configuring Ports
Managed Switches require little configuration
Managed Switches are usually cheaper than Unmanaged Switches
A Managed Switch can always perform Routing
Managed Switches provide more options for configuring Ports
You want to create VLANs on your New Ubiquiti Switch. When you first log in and go to the VLAN Screen, you notice there is already a VLAN 1. Why is that?
Another Network Admin already configured this VLAN
This is common with Ubiquiti Switches. Other Switch manufacturer’s don’t practice this.
This is the Native VLAN and all Ports are members of this by default.
Someone connected a Rogue DHCP Server to the Switch and it automatically configured VLAN 1
This is the Native VLAN and all Ports are members of this by default.
You want to use a Web Server that has a Public IP Address and needs full access to the Internet, but you also want your Network to be safe from Public Traffic. What solition can you implement?
DMZ
An IPS
A Layer 3 Switch
A Second Router
DMZ
Three Switches have been connected in a way to avoid a bridging loop. What STP features prevents someone from accidentally plugging in another Switch rather than a computer?
Port Mirroring
BPDU Guard
Trunking
BPDU Defender
BPDU Guard
You have two Switches that have a VLAN spread accross them through a Trunk Port. However, more devices are on the VLAN and the Trunk Port is being weighed down by alot of Traffic. What method can you use to alleviate this?
Port Mirroring
Add another VLAN
Connect another Switch
Port Bonding
Port Bonding
Which of the following is NOT a characteristic of IPv6?
It is a 128 bit address.
It is a 64 bit address.
It uses Hexadecimal
IPv6 is self-configured
It is a 64 bit address.
Which of the following is a VALID IPv6 Address?
FE90:0007:0230:0000:0000:FF22:2A4C:0020
G400:0002:H111:0000:0000:0000:23AC:4H10
0001:C234:ABC0:1111:0000:0000:0000:2233:9900
0000:0000:0000:411:0Q11:56AC:AC44:FFEE
FE90:0007:0230:0000:0000:FF22:2A4C:0020
Which of the following is a VALID shortening method for the following IPv6 Address?
FE24:0000:0000:C511:0000:0000:0000:0EFF
FE24::C511::EFF
FE24:0000:0000:C5::EFF
FE24::C511:0000:0000:0000:EFF
This has already been shortened.
FE24::C511:0000:0000:0000:EFF
What do Routers use to provide the necessary information for IPv6 clients to get on the Internet?
Router Solicitation
Tunneling
Stateful Auto Configuration
Stateless Auto Configuration
Stateless Auto Configuration
Which WAN technology enables an individual single-mode fiber to carry multiple signals by giving each signal a different wavelength by using different colors of laser light?
Dense Wavelength Division Multiplexing (DWDM)
SONET
MPLS
Metro Ethernet
Dense Wavelength Division Multiplexing (DWDM)
Which WAN technology creates a secure, private network within a city using fiber optic cabling and Ethernet Technology?
SONET
Metro Optical
MPLS
Metro Ethernet
Metro Optical
What is the MAIN difference between Remote Assistance (Remote Help) and Remote Desktop?
Remote assistance uses an email invitation system.
Remote Desktop uses an email invitation system.
Remote Assistance requires Servers
Remote Assistance uses a different port.
Remote assistance uses an email invitation system.
Which VPN Security protocol is used by Cisco?
PPTP
L2TP/IPSec
SSTP
EAP
L2TP/IPsec (Layer 2 Tunneling Protocol over IPSec)
You are creating a VPN Connection from home to your office network. Your VPN client software will create the first endpoint on your home system. What is this endpoint called?
Virtual Switch
Virtual NIC
Endpoint 2
VPN Headend
Virtual NIC
You need to purchase a Wireless Router that operates on the 2.4 GHz and 5.0 GHz band. Which standard would cover this?
- 11a
- 11b
- 11n
- 11g
802.11n
What is an advantage of using PoE+ over PoE?
It uses 30 watts for more power.
It can support any device.
It supports 802.3af standard.
It provides better security.
It uses 30 wats for more power.
You just installed a wireless network in your one-floor office building. You want to make sure everyone in the office can connect to the wireless access point with a good signal so you are going to install it on the ceiling in the middle of the office. Which type of antenna should the access point have?
Omni
Patch
Yagi/Directional
Parabolic
Omni
Which wireless security standard is the most secure?
TKIP
AES
WEP
Open
AES
A wireless network in a small office has an SSID named ELLIOT. A user, who feels he needs more bandwidth, irresponsibly connects another wireless access point and names it ELLIOT. Other users are accidentally connecting to this access point and not getting the security they need because the WAP wasn’t configured properly. What is this second access point called?
Rogue DHCP Server
Man-in-the-Middle
Evil Twin
Rogue Firewall
Evil Twin
