CCNA 面试题与答案
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问题 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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问题 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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问题 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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问题 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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问题 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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用户评价最有帮助的内容：
- What is the purpose of ARP (Address Resolution Protocol)?
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