Which address is used by an operating system to send a packet to all host devices residing on the local subnet simultaneously? MCQ with Answer and Explanation

Question
Which address is used by an operating system to send a packet to all host devices residing on the local subnet simultaneously?
A. Loopback Address
B. Gateway Address
C. Broadcast Address
D. MAC Identifier
Answer: Option C
Solution (By JKSSB Mock Tests)
The broadcast address (such as 255.255.255.255 publicly or the last address of a subnet) allows data to target all nodes on that network block.
This question belongs to: Computer Computer Networking
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Question #1
Which of the following is a private IP address belonging strictly to the Class B network registry block?
A. 10.150.1.1
B. 172.16.50.4
C. 192.168.10.5
D. 224.0.0.1
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Correct Answer: Option B

Explanation:
The private Class B IP range spans from 172.16.0.0 to 172.31.255.255, as defined by RFC 1918.
This question belongs to: Computer Computer Networking
Question #2
What is the primary role of the Domain Name System (DNS) in computer networks?
A. To assign dynamic IP addresses to workstations on boot.
B. To resolve hardware MAC pointers to subnet masks.
C. To translate private IP paths to public gateway channels.
D. To translate human-readable domain names into machine-routable numerical IP addresses.
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Correct Answer: Option D

Explanation:
DNS translates alphanumeric domain names (like [www.example.com](https://www.example.com)) into the numerical IP addresses used by computers to route data.
This question belongs to: Computer Computer Networking
Question #3
Which topology is most suitable for fault-tolerant networks?
A. Ring
B. Bus
C. Mesh
D. Star
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Correct Answer: Option C

Explanation:
Mesh topology provides multiple paths, so failure of one link does not disconnect the network.
This question belongs to: Computer Computer Networking
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