What is the primary role of a subnet mask when paired with an active IPv4 address value?
A. To toggle networks between half and full-duplex transmission modes.
B. To provide physical encryption layers over frame headers.
C. To explicitly delineate the network routing segment from the unique host identifier segment.
D. To resolve hardware MAC pointers to domain paths.
Answer: Option C
Solution (By JKSSB Mock Tests)
The subnet mask uses binary bit masking to indicate which part of an IP address refers to the network identity and which part refers to the host device.
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