What is the total number of unique host addresses that can be assigned to active devices within a standard Class C IP subnet mask block? MCQ with Answer and Explanation
What is the total number of unique host addresses that can be assigned to active devices within a standard Class C IP subnet mask block?
A. 254 host addresses
B. 128 host addresses
C. 256 host addresses
D. 512 host addresses
Answer: Option A
Solution (By JKSSB Mock Tests)
While a standard Class C block contains 256 total addresses, the first address (network ID) and last address (broadcast address) are reserved, leaving 254 usable host slots.
Explanation:
Because data travels sequentially from node to node around a ring topology, any break in the link disrupts the circuit and stops all network traffic.
Which topology design provides an exceptionally robust environment where the failure of any single connection line affects only the device connected to that specific line?
Explanation:
In a star topology, each node uses an isolated cable run to connect to a central switch. A break in one cable only disconnects that specific device.
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