Which of the following is a private IP address belonging strictly to the Class B network registry block? MCQ with Answer and Explanation

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Which of the following is a private IP address belonging strictly to the Class B network registry block?

A. 172.16.50.4

B. 10.150.1.1

C. 224.0.0.1

D. 192.168.10.5

Answer: Option A

Solution (By JKSSB Mock Tests)

The private Class B IP range spans from 172.16.0.0 to 172.31.255.255, as defined by RFC 1918.

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Question #1

What is the default protocol for secure web browsing?

A. FTP

B. HTTP

C. SSH

D. HTTPS

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Correct Answer: Option D

Explanation:
HTTPS is the secure version of HTTP, using SSL/TLS encryption.

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Question #2

Which IP address range indicates a Class A network identity under traditional routing rules?

A. 192.0.0.0 to 223.255.255.255

B. 224.0.0.0 to 239.255.255.255

C. 1.0.0.0 to 126.255.255.255

D. 128.0.0.0 to 191.255.255.255

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Correct Answer: Option C

Explanation:
Class A IP addresses utilize the first octet range from 1 to 126 (excluding 127 which is reserved for loopback diagnostics).

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Question #3

An IPv4 address is composed of how many bits, and how are they typically formatted for human readability?

A. 32 bits, divided into four octets separated by dots

B. 64 bits, divided into eight blocks separated by colons

C. 16 bits, divided into two bytes separated by hyphens

D. 128 bits, formatted as hexadecimal characters

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Correct Answer: Option A

Explanation:
An IPv4 address consists of 32 bits arranged into four 8-bit octets, represented in dotted-decimal format (e.g., 192.168.1.1).

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