What is the maximum number of usable host addresses available within a standard, un-subnetted Class C network block? MCQ with Answer and Explanation

Question
What is the maximum number of usable host addresses available within a standard, un-subnetted Class C network block?
A. 128
B. 256
C. 254
D. 512
Answer: Option C
Solution (By JKSSB Mock Tests)
A Class C network has 256 addresses total, but 2 are reserved (one for the network ID and one for the broadcast address), leaving 254 usable host slots.
This question belongs to: Computer Computer Networking
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Practice More Computer Networking Questions

Question #1
What hardware component is installed inside a computer tower to provide a physical connection port for an Ethernet cable or network medium?
A. Analog Gateway Block
B. Modem Chipset
C. Bus Terminator Plug
D. Network Interface Card (NIC)
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Correct Answer: Option D

Explanation:
The NIC (Network Interface Card) houses the physical circuitry and MAC address required to interface a computer with network cabling.
This question belongs to: Computer Computer Networking
Question #2
Which network topology layout creates a fully redundant matrix where every device shares a direct point-to-point connection with every other device?
A. Star Topology
B. Full Mesh Topology
C. Ring Topology
D. Tree Topology
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Correct Answer: Option B

Explanation:
A full mesh topology links every node directly to every other node, maximizing fault tolerance and redundancy.
This question belongs to: Computer Computer Networking
Question #3
Which mechanism enables an internet router to modify packet headers, allowing thousands of private internal LAN hosts to navigate the web through a single public IP address?
A. DHCP lease management
B. Network Address Translation (NAT)
C. Domain Name mapping
D. Address Resolution lookup
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Correct Answer: Option B

Explanation:
NAT converts private internal IP addresses to a public IP address, conserving IPv4 space and adding an extra layer of internal security.
This question belongs to: Computer Computer Networking
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