CompTIA Network+ 008 Certification All-in-One Exam Guide, 8th ED by Mike Meyers

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

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What uniquely identifies every NIC?

IP Address
Media Access Control Address
ISO Number
Packet ID Number

Media Access Control Address (MAC Address/Physical Address)

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What Windows Utility do you use to find the MAC Address for a System?

ipconfig /all
ipcfg /all
ping
mac

ipconfig /all

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A MAC Address is known as a _______ address?

IP
Logical
Physical
OEM

Physical

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A NIC sends data in discrete chunks called ________?

Segments
Sections
Frames
Layers

Frames

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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.

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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

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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

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Which Layer of the OSI Model controls the segmentation and reassembly of Data?

Application Layer
Presentation Layer
Session Layer
Transport Layer

Transport Layer

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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

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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.

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Star-Bus is an Example of _______ topology?

Transitional
System
Hybrid
Rampant

Hybrid

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Of the topologies listed, which one is the most fault-tolerant?

Point-to-Point
Bus
Star
Ring

Star

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What term is used to describe the interconnectivity of Network components?

Segmentation
Map
Topology
Protocol

Topology

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Coaxial cables all have a ______ rating?

Resistance
WATT
Speed
Ohm

Ohm

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Which of the following is a type of coaxial cable?

RJ-45
RG-6
BNC
Barrel

RG-6

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Which Network topology connected nodes with a Ring of Cable?

Star
Bus
Ring
Mesh

Ring

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Which Network topology is most commonly seen only in Wireless Networks?

Star
Bus
Ring
Mesh

Mesh

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Which of the following is a Duplex fiber-optic connection?

LC
RJ-45
ST
SC

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.

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What is the most common category of UTP used in new cabling installations?

Cat 3
Cat 5e
Cat 6
Cat 7

Cat 6

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Ethernet Hubs took an incoming packet and _______ it out to the other connected ports?

amplified
repeated
filtered
distorted

repeated

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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

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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

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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

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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

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.

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

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? 802. 11a 802. 11b 802. 11n 802. 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

CompTIA Network+ 008 Certification All-in-One Exam Guide, 8th ED by Mike Meyers - CH Quizes Flashcards