Which address space is specifically allocated globally for network diagnostics, mapping to the 'localhost' designation inside client operating software configurations? MCQ with Answer and Explanation

Which address space is specifically allocated globally for network diagnostics, mapping to the 'localhost' designation inside client operating software configurations?
A. 192.168.1.254
B. 127.0.0.1
C. 10.0.0.1
D. 255.255.255.255
Answer: Option B
Solution (By JKSSB Mock Tests)
The 127.0.0.1 loopback address routes packets back internally within the local device's TCP/IP stack to support software testing.

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Practice More Computer Networking Questions

Question #1
What is the subnet mask for a Class B network?
A. 255.255.255.0
B. 255.0.0.0
C. 255.255.255.255
D. 255.255.0.0

Correct Answer: Option D


Explanation:
Class B default subnet mask is 255.255.0.0 (16 bits for network).

This question belongs to: Computer Computer Networking
Question #2
What is a subnet?
A. A physical network segment
B. A type of router
C. A logical subdivision of an IP network
D. A VLAN

Correct Answer: Option C


Explanation:
Subnetting divides a large network into smaller logical subnetworks.

This question belongs to: Computer Computer Networking
Question #3
What is the main disadvantage of a bus topology?
A. Single point of failure in the backbone
B. Difficult to add new devices
C. Requires a central hub
D. High cost

Correct Answer: Option A


Explanation:
In bus topology, if the main cable (backbone) fails, the entire network goes down.

This question belongs to: Computer Computer Networking