# Practice Quiz in Network Layer: Logical Addressing Part 5

Online Practice Quiz in Network Layer: Logical Addressing part 5 from the book Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

This is the Online Practice Quiz in Network Layer: Logical Addressing part 5 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

### Continue Part V of the Online Practice Quiz

#### Quiz in Network Layer: Logical Addressing

Question 41. In a block, the prefix length is /15; what is the mask?

A. 255.254.0.0

B. 255.255.255.0

C. 255.255.255.128

D. None of these

Question 42. To make addresses more readable, IPv6 specifies ____________notation.

A. dotted decimal

C. both a and b

D. None of these

Question 43. Find the number of addresses in a block of classless addresses if one of the addresses is 12.2.2.7/30.

A. 2

B. 4

C. 8

D. None of these

Question 44. What is the first address of a block of classless addresses if one of the addresses is 12.2.2.76/27?

A. 12.2.2.0

B. 12.2.2.32

C. 12.2.2.64

D. None of these

Question 45. What is the default mask for class A in CIDR notation?

A. /9

B. /8

C. /16

D. None of these

Question 46. In classless addressing, the _______ is the varying part (similar to the hostid).

A. suffix

B. prefix

C. hostid

D. None of these

Question 47. In a block, the prefix length is /24; what is the mask?

A. 255.255.255.0

B. 255.255.242.0

C. 255.255.0.0

D. None of these

Question 48. Which address could be the beginning address of a block of 32 classless addresses?

A. 2.4.6.5

B. 2.4.6.16

C. 2.4.6.64

D. None of these

Question 49. In IPv6, _________ address defines a group of computers.

A. a unicast

B. a multicast

C. an anycast

D. None of these

Question 50. In classless addressing, the prefix length defines the _____________.

A. netid

B. hostid

D. None of these

Question 51. Which address could be the beginning address of a block of 16 classless addresses?

A. 2.4.6.5

B. 2.4.6.15

C. 2.4.6.62

D. None of these

Question 52. In hexadecimal colon notation, a 128-bit address is divided into _______ sections, each _____ hexadecimal digits in length.

A. 8: 2

B. 8: 3

C. 8: 4

D. None of these

Question 53. What is the first address of a block of classless addresses if one of the addresses is 12.2.2.76/10?

A. 12.0.0.0

B. 12.2.0.0

C. 12.2.2.2

D. None of these

Question 54. Identify the class of the following IPv4 address: 191.1.2.3.

A. A

B. B

C. C

D. None of these

### More Practice Quiz in Network Layer: Logical Addressing

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Practice Quiz Part 4

Practice Quiz Part 5

### Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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