Network Protocols and Standards

Question 1

What is the name given to languages that are used for network communication?

NIC

Segment

Protocol

Answer 1

Protocol

A protocol is the network language used by two systems to communicate across the network

Question 2

802.11

TCP/IP

NetBEUI

Answer 2

TCP/IP

TCP/IP is the protocol of the Internet, and each system is assigned a unique IP address

Question 3

Which of the following protocols is a nonroutable protocol?

DLink

TCP/IP

NetBEUI

Answer 3

NetBEUI

NetBEUI is a nonroutable protocol

Question 4

Which protocol was developed by IBM and used primarily in Microsoft workgroup environments?

NetBEUI

TCP/IP

IP

Answer 4

NetBEUI

NetBEUI was developed by IBM and used primarily in Microsoft workgroup environments

Question 5

Which of the following is not a layer in the OSI model?

Transport

Network

Data transmission

Answer 5

Data transmission

Data transmission is not a layer of the OSI model

Question 6

Which of the following protocols are layer-3 protocols? (Choose two.)

ICMP

TCP

IP

UDP

Answer 6

ICMP

IP

ICMP and IP are two of the network-layer protocols in the TCP/IP protocol suite

Question 7

Your team is troubleshooting connectivity issues, and your coworker has asked you what the layer-2 address of one of the laptops on the network is. Which of the following addresses would you give?

COMPUTER1

00-02-3F-6B-25-13

192.168.3.200

Answer 7

00-02-3F-6B-25-13

00-02-3F-6B-25-13 is an example of a MAC address, which is a layer-2 address

Question 8

Which of the following functions can be performed at layer 6 of the OSI model? (Choose all that apply.)

Routing of the message

Compression

Encryption

Converting the message to a format that is understood by the destination

Answer 8

Compression

Encryption

Converting the message to a format that is understood by the destination

They are all examples of data formatting that is performed at the presentation layer

Question 9

Which of the following protocols are transport-layer protocols? (Choose two.)

ICMP

TCP

IP

UDP

Answer 9

TCP

UDP

TCP and UDP are transport protocols responsible for reliable delivery (TCP) in the TCP/IP protocol suite and unreliable delivery (UDP)

Question 10

You need to configure one of the routers in the office with a layer-3 address. Which of the following addresses would you use?

COMPUTER1

00-02-3F-6B-25-13

192.168.3.200

Answer 10

192. 168.3.200

192. 168.3.200 is an example of an IP address that is a layer-3 protocol; thus, this is a layer-3 address

Question 11

Which of the following represents an application-layer protocol?

SMTP

IP

UDP

Answer 11

SMTP

An application-layer protocol is responsible for initiating some form of request. SMTP is used to send e-mail from server to server

Question 12

Which layer of the OSI model is responsible for converting the packet to an electrical signal that will be placed on the wire?

Layer 4

Layer 3

Layer 2

Answer 12

Layer 2

Layer 2 (the data link layer) is responsible for converting the packet to an electrical signal

Question 13

Which 802 project standard defines Gigabit Ethernet using fiber-optic cabling?

802. 5
803. 3z
804. 3ab

Answer 13

802.3z

Gigabit Ethernet over fiber is defined in the IEEE 802.3z project standard

Question 14

Which 802 project standard defines Fast Ethernet?

802. 3u
803. 3z
804. 3ab

Answer 14

802.3u

The IEEE 802.3u project standard defines Fast Ethernet, which is an Ethernet standard that runs at 100 Mbps

Question 15

Which 802 project standard defines 10-Gigabit Ethernet?

802. 3z
803. 3ae
804. 3ab

Answer 15

802.3ae

The IEEE 802.3ae standard defines 10-Gigabit Ethernet

Question 16

Which 802 project standard defines wireless at speeds of 54 Mbps and a frequency range of 2.4 GHz?

802. 11b
803. 11c
804. 11g

Answer 16

802. 11g
803. 11g defines a wireless standard at 54 Mbps while maintaining compatibility with 802.11b by being on the same frequency