Exam 5: Network and Transport Layers

Draw a schematic of the Domain Name Server process and describe how this system works and is hierarchically organized.What happens if a URL is not in a local DNS server?

(Essay)

4.8/5

(68)

Question 21

Subnet masks tell computers what part of an IP address is to be used to determine whether a destination is in the same subnet or in a different subnet.

(True/False)

4.9/5

(73)

Question 22

Which of the following is not a component of a router?

(Multiple Choice)

4.7/5

(79)

Question 23

An Address Resolution Protocol message is broadcast to all computers in a subnet to find the data link layer address.

(True/False)

4.8/5

(78)

Question 24

UDP is not commonly used for:

(Multiple Choice)

4.7/5

(81)

Question 25

Connectionless routing sets up a TCP connection,or virtual circuit between a sender and receiver.

(True/False)

4.9/5

(80)

Question 26

IPv4 uses ________ bytes per Internet address.

(Multiple Choice)

4.9/5

(89)

Question 27

Suppose a client computer wants to access a web page on a web server.Assume that it knows all of the IP addresses and data link layer addresses in the network,except those for the web server itself.Describe how the client would obtain the IP address for the web server.

(Short Answer)

4.9/5

(80)

Question 28

What are the differences between connectionless and connection-oriented routing? Discuss this in detail and also do a schematic of this.When might UDP be used?TCP?What is a virtual circuit? What is Quality of Service routing and why is it useful?

(Essay)

4.9/5

(80)

Question 29

The network layer is responsible for end-to-end delivery of the message.

(True/False)

4.8/5

(67)

Question 30

The most common standard for dynamic addressing for TCP/IP networks is Dynamic Host Control Protocol.

(True/False)

4.9/5

(79)

Question 31

A hop in a routing calculation is defined as one link or circuit.

(True/False)

4.8/5

(79)

Question 32

The source port identifier in the TCP header tells the TCP software on the destination computer,which application on the destination it should pass the packet to.

(True/False)

4.8/5

(76)

Question 33

In its simplest form,the __________ has two columns: the first column lists every computer and device in the network,while the second column lists the computer or device to which that computer should send messages,if they are destined for the computer in the first column.

(Multiple Choice)

4.8/5

(80)

Question 34

Part of the function of address resolution is translating the application layer address of the destination into a network layer address.

(True/False)

4.9/5

(88)

Question 35

With QoS routing different __________ are defined,each with different priorities.

(Multiple Choice)

4.9/5

(86)

Question 36

What is DHCP and why would network managers want to use it?

(Essay)

4.9/5

(76)

Question 37

The shortage of IPv4 addresses has been quick,especially with the help of NAT.

(True/False)

5.0/5

(75)

Question 38

An autonomous system is a network operated by one organization.

(True/False)

4.9/5

(82)

Question 39

The ______ defines what type of packets should be routed and what types of packets should be discarded.

(Multiple Choice)

4.9/5

(83)

Question 40

Showing 21 - 40 of 115

Draw a schematic of the Domain Name Server process and describe how this system works and is hierarchically organized.What happens if a URL is not in a local DNS server?

Subnet masks tell computers what part of an IP address is to be used to determine whether a destination is in the same subnet or in a different subnet.

Which of the following is not a component of a router?

An Address Resolution Protocol message is broadcast to all computers in a subnet to find the data link layer address.

UDP is not commonly used for:

Connectionless routing sets up a TCP connection,or virtual circuit between a sender and receiver.

IPv4 uses ________ bytes per Internet address.

Suppose a client computer wants to access a web page on a web server.Assume that it knows all of the IP addresses and data link layer addresses in the network,except those for the web server itself.Describe how the client would obtain the IP address for the web server.

What are the differences between connectionless and connection-oriented routing? Discuss this in detail and also do a schematic of this.When might UDP be used?TCP?What is a virtual circuit? What is Quality of Service routing and why is it useful?

The network layer is responsible for end-to-end delivery of the message.

The most common standard for dynamic addressing for TCP/IP networks is Dynamic Host Control Protocol.

A hop in a routing calculation is defined as one link or circuit.

The source port identifier in the TCP header tells the TCP software on the destination computer,which application on the destination it should pass the packet to.

In its simplest form,the __________ has two columns: the first column lists every computer and device in the network,while the second column lists the computer or device to which that computer should send messages,if they are destined for the computer in the first column.

Part of the function of address resolution is translating the application layer address of the destination into a network layer address.

With QoS routing different __________ are defined,each with different priorities.

What is DHCP and why would network managers want to use it?

The shortage of IPv4 addresses has been quick,especially with the help of NAT.

An autonomous system is a network operated by one organization.

The ______ defines what type of packets should be routed and what types of packets should be discarded.

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Wired and Wireless LANs

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters