NETWORK+ GUIDE TO NETWORKS, 8E Test One : Review!

When creating network diagrams, what icon description typically represents a network firewall?

An icon that resembles a brick wall.

In the TCP/IP model, what layer combines the responsibilities of the Application, Presentation, and Session layers from the OSI model?

Application

Which statement regarding the Border Gateway Protocol (BGP) is accurate?

BGP utilizes TCP for communicating updates

Which of the following is NOT a best practice when performing cable management?

Cable ties should be pulled tightly to keep cables from moving around in a bundle.

In order to achieve 1000Base-T over CAT5e cable, two pairs of copper are needed.

False

RG-59 is more expensive than RG-6, but has better resistance to attenuation.

False

The CTRL + S key combination can be used to stop an actively running command.

False

The LLC sublayer is primarily concerned with managing MAC addresses in message frames.

False

The protocol data unit for the Physical layer of the OSI model is called payload or data.

False

The Data Link layer utilizes what name for its protocol data unit (PDU)?

Frame

Which statement regarding the IKEv2 tunneling protocol is accurate?

IKEv2 offers fast throughput and good stability when moving between wireless hotspots.

What is the purpose of the Layer 2 LLC sublayer?

It is used to handle multiplexing, flow and error control, and reliability.

HTTP, IMAP4, FTP, and Telnet are all examples of protocols that operate at what layer of the OSI model?

Layer 7

During termination of twisted pair cabling, what should be done to ensure minimal cross talk is introduced?

No more than 1 inch of the cable should be exposed

What statement regarding the Power over Ethernet standards is inaccurate?

Power over Ethernet requires CAT6 or better copper cable.

Broadband cable Internet service and cable TV are most commonly delivered over long distances via what type of cable?

RG-6

What is NOT a TIA/EIA recognized cabling type that can be used for horizontal cabling?

RG-6 Coaxial

Which of the following statements correctly describes the SFP+ transceiver?

SFP+ is the same size as SFP, and supports a theoretical maximum transmission speed of 16 Gbps

Which of the following protocols is used as a signaling protocol for the initial connection between hosts, but does not participate in data transfer during the session?

SIP

What optional protocol can be used in 802.11 to reserve the medium for one node's use?

RTS/CTS (Request to Send/Clear to Send)

Multimode fiber contains a core that is larger than a single mode fiber core

True

Routing protocols that enable routers to communicate beyond neighboring routers, allowing each router to independently map the network, are known as which type of protocols?

link-state protocols

By default, what is the MTU size on a typical Ethernet network?

1500 bytes

If the VLAN tag is present in an Ethernet frame, what is the maximum frame size?

1522 bytes

Equipment data racks most commonly are a standard width of what measurement?

19 inch

Which of the following IPv6 addresses represents a global unicast address?

2000::/3

What is the industry standard angle for an Angle Polished Connector (APC)?

8 degrees

What statement accurately describes what a cable bend radius determines?

A cable bend radius is the radius of the maximum arc into which you can loop the cable without impairing dat

In a domain, the process of allowing a user to sign on to the network from any computer on the network and get access to resources is managed by what service?

Active Directory Domain Services (AD DS)

What statement accurately reflects what occurs when a message is too large to transport on a network?

The message is divided into smaller messages called segments (for TCP) or datagrams (for UDP)

What occurs if a network layer protocol is aware that a packet is larger than the maximum size for its network?

The packet will be divided into smaller packets using fragmentation.

The Wireless Personal Area Network (WPAN) is defined in the 802.15 standard.

True

The industry standard height for a rack in rack units is 42U.

True

A dedicated telephone switch or a virtual switching device that connects and manages calls within a private organization, and manages call connections that exit the network through a VoIP gateway.

VoIP PBX

To generate a public and private key for use with SSH, what command line utility should you use?

ssh-keygen

When dealing with static electricity, what kind of failure caused by static discharge shortens the life of a component, and can cause intermittent errors?

upset failure

When viewing the pinout for T568B, what is the correct order of wire colors, starting at pin 1?

white/orange, orange, white/green, blue, white/blue, green, white/brown, brown

What statement correctly identifies the purpose of a software patch?

A software patch is a correction, improvement, or enhancement to software.

You have been awarded a contract for wiring a new federal building. What twisted-pair wiring standard must you use?

TIA/EIA 568A

In considering the responsibilities of each layer of the OSI model, what statement accurately reflects those of the Presentation layer?

The Presentation layer is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read.

You are troubleshooting a network issue on a client computer and discover that the network card has an IP address of 169.254.196.200. What does this mean?

The computer is configured to use DHCP, but was unable to lease an address

Why should you not leave more than 1 inch of exposed cable before a twisted-pair termination?

The exposure of the cable can cause transmission interference between wires.

The TCP and UDP protocols both exist at what layer of the OSI model?

Transport

An 802.11 data frame contains four address fields, in contrast to the two address fields in 802.3 Ethernet.

True

At the root level of the DNS hierarchical structure, 13 clusters of root servers hold information used to locate TLD servers

True

Each organization that provides host services on the public Internet is responsible for providing and maintaining DNS authoritative servers for public access.

True

A wireless node that is in active scanning mode transmits what special type of frame to find available access points?

probe frame

Noise that can degrade or distort a signal on a network is measured with what unit?

decibels

What component of enterprise-level structured cabling serves as the location where an incoming network interface enters a building and connects with the building's backbone cabling?

entrance facility

A typical fiber termination kit should include what tool for cutting a clean slice through fiber strands?

fiber cleaver

In a fire suppression system, what term is used to describe what is typically a foaming chemical, gas, or water that is sprayed everywhere to put out a fire?

fire suppression agent

Where is a demarc located in relation to the structured cabling of an enterprise environment?

in the Main Distribution Frame (MDF)

What command can you utilize to display TCP/IP configuration information for each network adapter installed?

ipconfig /all

A Windows computer on your network is having issues resolving queries for a specific domain, but not other domains. Other computers on the same network resolve the name just fine. What command can you issue that might fix the problem?

ipconfig /flushdns

You've been handed a fiber with a 1.25-mm ferrule that requires a connector. What is the most commonly used connector for this ferrule size?

local connector (LC)

Which command will produce statistics about each message transmitted by a host, separated according to protocol type?

netstat -s