Q5. Which of the following is true about VLSM?
A. VLSM allows route summarization
B. VLSM makes less efficient use of IP addresses compared to fixed subnet mask addressing
C. VLSM can be implemented in both link state and distance vector routing protocols.
D. VLSM is a Cisco proprietary technology.
Correct Answer: A
VLSM (Variable Length Subnet Masking) allows efficient use of IP addresses. Networks implemented with VLSM can be summarized more efficiently due to manual control.
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