CCNA Interview Questions and Answers
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Ques 36. What is the difference between static routing and dynamic routing?
Static routing requires manual configuration of routes, while dynamic routing protocols automatically adapt to changes in the network topology.
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Ques 37. What is the purpose of the EIGRP (Enhanced Interior Gateway Routing Protocol)?
EIGRP is a Cisco proprietary routing protocol that uses a composite metric based on bandwidth, delay, reliability, and load to determine the best path.
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Ques 38. Explain the concept of NAT overload (PAT - Port Address Translation).
NAT overload allows multiple private IP addresses to be mapped to a single public IP address by using different port numbers.
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Ques 39. What is the purpose of the HSRP (Hot Standby Router Protocol)?
HSRP provides high availability by allowing multiple routers to work together in a group, with one router acting as the active router and the others as standby routers.
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Ques 40. Explain the concept of VLSM (Variable Length Subnet Masking).
VLSM allows the use of different subnet mask lengths in the same IP network, optimizing IP address allocation.
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