This standards organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones.

Internet Engineering Task Force (IETF)

Internet Architecture Board (IAB)

Internet Research Task Force (IRTF)

This standards organization is responsible for IP address allocation and domain name management.

Internet Assigned Numbers Authority (IANA)

Internet Engineering Task Force (IETF)

Internet Architecture Board (IAB)

What types of standards are developed by the Electronics Industries Alliance (EIA)?

radio equipment and cell towers

video compression and broadbard communications

Voice over IP (VoIP) and satellite communications

In computer communication, what is the purpose of message encoding?

to convert information to the appropriate form for transmission

to negotiate correct timing for successful communication

to break large messages into smaller frames

What are two benefits of using a layered network model?

It prevents technology in one layer from affecting other layers.

It ensures a device at one layer can function at the next higher layer

It prevents designers from creating their own model

What is the purpose of protocols in data communications?

providing the rules required for a specific type of communication to occur

specifying the bandwidth of the channel or medium for each type of communication

dictating the content of the message sent during communication

specifying the device operating systems that will support the communication

What is done to an IP packet before it is transmitted over the physical medium?

It is encapsulated in a Layer 2 frame

It is tagged with information guaranteeing reliable delivery

It is segmented into smaller individual pieces

It is encapsulated into a TCP segment

Why are two strands of fiber used for a single fiber optic connection?

They allow for full-duplex connectivity

They prevent crosstalk from causing interference on the connection

They increase the speed at which the data can travel

The two strands allow the data to travel for longer distances without degrading

Which procedure is used to reduce the effect of crosstalk in copper cables?

twisting opposing circuit wire pairs together

requiring proper grounding connections

wrapping the bundle of wires with metallic shielding

designing a cable infrastructure to avoid crosstalk interference

avoiding sharp bends during installation

A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?

The end-user device needs mobility when connecting to the network.

The end-user device requires a dedicated connection because of performance requirements.

The end-user device only has an Ethernet NIC.

The end-user device area has a high concentration of RFI.

What is the definition of bandwidth?

the amount of data that can flow from one place to another in a given amount of time

the speed at which bits travel on the network

the measure of usable data transferred over a given period of time

What is a characteristic of UTP cabling?

woven copper braid or metallic foil

A wireless LAN is being deployed inside the new one room office that is occupied by the park ranger. The office is located at the highest part of the national park. After network testing is complete, the technicians report that the wireless LAN signal is occasionally affected by some type of interference. What is a possible cause of the signal distortion?

the number of wireless devices that are used in the wireless LAN

the elevated location where the wireless LAN was installed

the large number of trees that surround the office

What is the purpose of the OSI physical layer?

transmitting bits across the local media

exchanging frames between nodes over physical network media

performing error detection on received frames

Which characteristic describes crosstalk?

the distortion of the transmitted messages from signals carried in adjacent wires

the loss of wireless signal over excessive distance from the access point

the distortion of the network signal from fluorescent lighting

the weakening of the network signal over long cable lengths

What is indicated by the term throughput?

the measure of the bits transferred across the media over a given period of time

the measure of the usable data transferred across the media

the capacity of a particular medium to carry data

the time it takes for a message to get from sender to receiver

the guaranteed data transfer rate offered by an ISP

cisco b1 ch 3-8, 11

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cisco b1 ch 3-8, 11

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Practice Problem

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103 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The process of converting information into the proper form for transmission

Formatting

Encoding

Encapsulation

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which step of the communication process is concerned with properly identifying the address of the sender and receiver?

Formatting

Encoding

Encapsulation

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which three are components of message timing?

Flow control

Sequence numbers

Response timeout

Retransmit time

Access method

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which delivery method is used to transmit information to one or more end devices, but not all devices on the network?

Unicast

Multicast

Broadcast

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

BGP and OSPF are examples of which type of protocol?

network communication

network security

routing

service discovery

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which two protocols are service discovery protocols?

DNS

TCP

SSH

DHCP

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the sequencing function in network communication?

to uniquely label transmitted segments of data for proper reassembly by the receiver

to determine if data is corrupted during transmission

to ensure data flows at an efficient rate between sender and receiver

to guarantee delivery of data

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cisco b1 ch 3-8, 11

103 questions

The process of converting information into the proper form for transmission

Which step of the communication process is concerned with properly identifying the address of the sender and receiver?

Which three are components of message timing?

Which delivery method is used to transmit information to one or more end devices, but not all devices on the network?

BGP and OSPF are examples of which type of protocol?

Which two protocols are service discovery protocols?

What is the purpose of the sequencing function in network communication?

This protocol is responsible for guaranteeing the reliable delivery of information.

UDP and TCP belong to which layer of the TCP/IP protocol?

Which two protocols belong in the TCP/IP model application layer?

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