Question 1

When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is shorter than the IP packet,what happens?

Accepted Answer

A) The router fragments the packet. 
B) The subnet fragments the packet. 
C) Both the router and the subnet fragment the packet. 
D) The network fragments the packet. 
A) The router fragments the packet. 
B) The subnet fragments the packet. 
C) Both the router and the subnet fragment the packet. 
D) The network fragments the packet. A

Question 2

A router sends an ARP message in order to find the ________ address of a destination host on a LAN.

Accepted Answer

A) IP 
B) MAC 
C) Both A and B 
A) IP 
B) MAC 
C) Both A and B B

Question 3

In an ARP request message,the ________ is all ones.

Accepted Answer

A) IP address 
B) MAC address 
C) Both A and B 
D) Neither A nor B 
A) IP address 
B) MAC address 
C) Both A and B 
D) Neither A nor B B

Question 4

In TCP fragmentation,what device does reassembly?

Accepted Answer

A) The source host. 
B) A router. 
C) The destination host. 
D) None of the above. 
A) The source host. 
B) A router. 
C) The destination host. 
D) None of the above.

Question 5

Which of the following is an interior routing protocol?

Accepted Answer

A) RIP. 
B) BGP. 
C) Both A and B 
D) Neither A nor B 
A) RIP. 
B) BGP. 
C) Both A and B 
D) Neither A nor B

Question 6

A router sends an ARP message to find the address of a destination host on a LAN subnet.The MAC layer address of the router is in the MAC destination address field of the ________.

Accepted Answer

A) frame carrying the ARP request message 
B) frame carrying the ARP response message 
C) Both A and B 
D) Neither A nor B 
A) frame carrying the ARP request message 
B) frame carrying the ARP response message 
C) Both A and B 
D) Neither A nor B

Question 7

In TCP fragmentation,what is fragmented?

Accepted Answer

A) The application layer message. 
B) The transport layer message. 
C) The internet layer message. 
D) All of the above. 
A) The application layer message. 
B) The transport layer message. 
C) The internet layer message. 
D) All of the above.

Question 8

The following router forwarding table entry has the prefix -14 and the address part 10101010 10100001 10000000 10000000 (170.160.0.0).Which of the following would constitute a match?

Accepted Answer

A) 10101010 00000000 00000000 00000000. 
B) 10101010 10100000 00000000 00000000. 
C) 10101010 10100001 00000000 00000000. 
D) 10101010 10100001 10000000 00000000. 
E) 10101010 10100001 10000000 10000000. 
A) 10101010 00000000 00000000 00000000. 
B) 10101010 10100000 00000000 00000000. 
C) 10101010 10100001 00000000 00000000. 
D) 10101010 10100001 10000000 00000000. 
E) 10101010 10100001 10000000 10000000.

Question 9

A transport process announces an MSS of 1,024.If there are no options,how big can IP packets be?

Accepted Answer

A) 536. 
B) 556. 
C) 576. 
D) 1,024. 
E) 1,064. 
A) 536. 
B) 556. 
C) 576. 
D) 1,024. 
E) 1,064.

Question 10

When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is longer than the IP packet,what happens? Read carefully.

Accepted Answer

A) The router fragments the packet. 
B) The subnet fragments the packet. 
C) Both the router and the subnet fragment the packet. 
D) The packet is not fragmented. 
A) The router fragments the packet. 
B) The subnet fragments the packet. 
C) Both the router and the subnet fragment the packet. 
D) The packet is not fragmented.

Question 11

Which of the following is a distance vector routing protocol?

Accepted Answer

A) RIP. 
B) OSPF. 
C) Both A and B 
D) Neither A nor B 
A) RIP. 
B) OSPF. 
C) Both A and B 
D) Neither A nor B

Question 12

To decide what process should receive the contents of the data field of a TCP segment,the transport layer process looks at the ________ field.

Accepted Answer

A) source port number 
B) source IP address 
C) destination IP address 
D) protocol 
E) None of the above. 
A) source port number 
B) source IP address 
C) destination IP address 
D) protocol 
E) None of the above.

Question 13

Multicasting is used because ________.

Accepted Answer

A) it allows a source host to reach many destination hosts in a short time 
B) it reduces traffic 
A) it allows a source host to reach many destination hosts in a short time 
B) it reduces traffic

Question 14

On what program on what computer does reassembly occur if IP packets are fragmented?

Accepted Answer

A) Transport process on the destination host. 
B) Internet layer process on the destination host. 
C) Internet layer process on a router. 
D) Data link layer process on a router. 
E) Data link layer process on the destination host. 
A) Transport process on the destination host. 
B) Internet layer process on the destination host. 
C) Internet layer process on a router. 
D) Data link layer process on a router. 
E) Data link layer process on the destination host.

Question 15

A host wishes to send an IP packet to a router on its subnet.It knows the router's IP address.The internet layer packet it sends will be ________.

Accepted Answer

A) a RARP request 
B) an ARP request 
C) an IP packet 
D) an ICMP echo request 
E) a routing protocol message 
A) a RARP request 
B) an ARP request 
C) an IP packet 
D) an ICMP echo request 
E) a routing protocol message

Question 16

IP version 6 will offer ________.

Accepted Answer

A) larger address fields to allow more IP addresses 
B) a good way to add extension headers 
C) Both A and B 
D) Neither A nor B 
A) larger address fields to allow more IP addresses 
B) a good way to add extension headers 
C) Both A and B 
D) Neither A nor B

Question 17

What class of network would have the following IP address? 11001100111111110000000010101010.

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 18

Which of the following has good scalability?

Accepted Answer

A) RIP. 
B) OSPF. 
C) Both A and B 
D) Neither A nor B 
A) RIP. 
B) OSPF. 
C) Both A and B 
D) Neither A nor B

Question 19

A TCP segment begins with octet 8,658 and ends with octet 12,783.What number does the sending host put in the sequence number field?

Accepted Answer

A) 8,657. 
B) 8,658. 
C) 8,659. 
D) 12,783. 
E) 12,784. 
A) 8,657. 
B) 8,658. 
C) 8,659. 
D) 12,783. 
E) 12,784.

Question 20

An IP address is A173:0000:0000:0000:23B7:0000:CD12:A84B.In compact form this is A173:23B7:CD12:A84B.

Accepted Answer

A) True 
 B)False

When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is shorter than the IP packet,what happens?

A router sends an ARP message in order to find the ________ address of a destination host on a LAN.

In an ARP request message,the ________ is all ones.

In TCP fragmentation,what device does reassembly?

Which of the following is an interior routing protocol?

A router sends an ARP message to find the address of a destination host on a LAN subnet.The MAC layer address of the router is in the MAC destination address field of the ________.

In TCP fragmentation,what is fragmented?

The following router forwarding table entry has the prefix -14 and the address part 10101010 10100001 10000000 10000000 (170.160.0.0).Which of the following would constitute a match?

A transport process announces an MSS of 1,024.If there are no options,how big can IP packets be?

When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is longer than the IP packet,what happens? Read carefully.

Which of the following is a distance vector routing protocol?

To decide what process should receive the contents of the data field of a TCP segment,the transport layer process looks at the ________ field.

Multicasting is used because ________.

On what program on what computer does reassembly occur if IP packets are fragmented?

A host wishes to send an IP packet to a router on its subnet.It knows the router's IP address.The internet layer packet it sends will be ________.

IP version 6 will offer ________.

What class of network would have the following IP address? 11001100111111110000000010101010.

Which of the following has good scalability?

A TCP segment begins with octet 8,658 and ends with octet 12,783.What number does the sending host put in the sequence number field?

An IP address is A173:0000:0000:0000:23B7:0000:CD12:A84B.In compact form this is A173:23B7:CD12:A84B.

Networking: How We Got Here

Network Standards

Network Security

Network Management

Physical Layer Propagation

Switched Wired Networks

Wireless Networks I

Wireless Networks 2

Tcp-Ip Internetworking

Internetworking 2

Networked Applications

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Exam 12: More on Tcp-Ip

When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is shorter than the IP packet,what happens?

A router sends an ARP message in order to find the ________ address of a destination host on a LAN.

In an ARP request message,the ________ is all ones.

In TCP fragmentation,what device does reassembly?

Which of the following is an interior routing protocol?

A router sends an ARP message to find the address of a destination host on a LAN subnet.The MAC layer address of the router is in the MAC destination address field of the ________.

In TCP fragmentation,what is fragmented?

The following router forwarding table entry has the prefix -14 and the address part 10101010 10100001 10000000 10000000 (170.160.0.0).Which of the following would constitute a match?

A transport process announces an MSS of 1,024.If there are no options,how big can IP packets be?

When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is longer than the IP packet,what happens? Read carefully.

Which of the following is a distance vector routing protocol?

To decide what process should receive the contents of the data field of a TCP segment,the transport layer process looks at the ________ field.

Multicasting is used because ________.

On what program on what computer does reassembly occur if IP packets are fragmented?

A host wishes to send an IP packet to a router on its subnet.It knows the router's IP address.The internet layer packet it sends will be ________.

IP version 6 will offer ________.

What class of network would have the following IP address? 11001100111111110000000010101010.

Which of the following has good scalability?

A TCP segment begins with octet 8,658 and ends with octet 12,783.What number does the sending host put in the sequence number field?

An IP address is A173:0000:0000:0000:23B7:0000:CD12:A84B.In compact form this is A173:23B7:CD12:A84B.

Networking: How We Got Here

Network Standards

Network Security

Network Management

Physical Layer Propagation

Switched Wired Networks

Wireless Networks I

Wireless Networks 2

Tcp-Ip Internetworking

Internetworking 2

Networked Applications

More on Modulation

More on Telecommunications

Filters