ESAT Forouzan - Chapter 19: Host-to-Host Delivery (Internetworking, Addressing and Routing))

Question 1

In which type of switching do all the packets of a message follow the same channels of a path? a. Datagram packet switching
b. Virtual circuit packet switching
c. Message switching
d. None of the above

Answer 1

b. Virtual circuit packet switching

Question 2

In _______, each packet of a message need not follow the same path from sender to receiver.
a. Message switching
b. The virtual approach to packet switching
c. The datagram approach to packet switching
d. None of the ab

Answer 2

c. The datagram approach to packet switching

Question 3

An IP address consists of _______ bits.
a. 4
b. 8
c. 32
d. Any of the above

Answer 3

c. 32

Question 4

Identify the class of IP address 4.5.6.7.
a. Class A
b. Class B
c. Class C
d. Class D

Answer 4

a. Class A

Question 5

Identify the class of IP address 229.1.2.3.
a. Class A
b. Class B
c. Class C
d. Class D

Answer 5

d. Class D

Question 6

Identify the class of IP address 191.1.2.3.
a. Class A
b. Class B
c. Class C
d. Class D

Answer 6

b. Class B

Question 7

A subnet mask in class A can have _______ 1s with the remaining bits 0s.
a. Nine
b. Four
c. Thirty-three
d. Three

Answer 7

a. Nine

Question 8

A subnet mask in class B can have _______ 1s with the remaining bits 0s.
a. Nine
b. Fourteen
c. Seventeen
d. Three

Answer 8

c. Seventeen

Question 9

A subnet mask in class C can have _______ 1s with the remaining bits 0s.
a. Ten
b. Twenty-five
c. Twelve
d. Seven

Answer 9

b. Twenty-five

Question 10

A subnet mask in class A has fourteen 1s. How many subnets does it define?
a. 32
b. 8
c. 64
d. 128

Answer 10

c. 64

Question 11

A subnet mask in class B has nineteen 1s. How many subnets does it define?
a. 8
b. 32
c. 64
d. 128

Answer 11

a. 8

Question 12

A subnet mask in class C has twenty-five 1s. How many subnets does it define
a. 2
b. 8
c. 16
d. 0

Answer 12

a. 2

Question 13

Given the IP address 201.14.78.65 and the subnet mask 255.255.255.224, what is the subnet address?
a. 201.14.78.32
b. 201.14.78.65
c. 201.14.78.64
d. 201.14.78.12

Answer 13

c. 201.14.78.64

Question 14

Given the IP address 180.25.21.172 and the subnet mask 255.255.192.0, what is the subnet address?
a. 180.25.21.0
b. 180.25.0.0
c. 180.25.8.0
d. 180.0.0.0

Answer 14

b. 180.25.0.0

Question 15

Given the IP address 18.250.31.14 and the subnet mask 255.240.0.0, what is the subnet address?
a. 18.0.0.14
b. 18.31.0.14
c. 18.240.0.0.
d. 18.9.0.14

Answer 15

c. 18.240.0.0.

Question 16

Class _________ has the greatest number of hosts per given network address.
a. A
b. B
c. C
d. D

Answer 16

a. A

Question 17

_______ is a client-server program that provides an IP address, subnet mask, IP address of a router, and IP address of a name server to a computer.
a. NAT
b. CIDR
c. ISP
d. DHCP

Answer 17

d. DHCP

Question 18

On a network that uses NAT, the __________ has a translation table.
a. Switch
b. Router
c. Server
d. None of the above

Answer 18

b. Router

Question 19

On a network that uses NAT, _______ initiates the communication.
a. An external host
b. An internal host
c. The router
d. (a) or (b)

Answer 19

b. An internal host

Question 20

On a network that uses NAT, the router can use _______ global address(es).
a. One
b. Two
c. A pool of
d. None of the above

Answer 20

c. A pool of

Question 21

In _______ routing, the full IP address of a destination is given in the routing table.
a. Next-hop
b. Network-specific
c. Host-specific
d. Default

Answer 21

c. Host-specific

Question 22

In _______ routing, the mask and destination addresses are both 0.0.0.0 in the routing table. a. Next-hop
b. Network-specific
c. Host-specific
d. Default

Answer 22

d. Default

Question 23

In _______ routing, the destination address is a network address in the routing table.
a. Next-hop
b. Network-specific
c. Host-specific
d. Default

Answer 23

b. Network-specific