多項選擇題

Which two are characteristics of the IS -IS protocol but not OSPF?（）

A. forms adjacencies with all neighbors
B. supports demand circuit routing
C. provides routing support for multiple network layer protocols
D. utilizes SPF algorithm
E. provides for network scalability by allowing the network to be separated into areas
F. three layers of hierarchical routing

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單項選擇題

How is network layer addressing accomplished in the OSI protocol suite?（）

A. Internet Protocol address
B. Media Access Control address
C. Packet Layer Proto col address
D. Network Service Access Point address
E. Authority and Format Identifier address

單項選擇題

What is the default metric used on IS -IS routers for each interface?（）

A. The cost is set to 10 for all interfaces.
B. The cost is set to 10 for LAN interfaces and 20 for WAN interfaces.
C. The cost is based on the speed of the interface.
D. The cost is based o n a composite of bandwidth and delay of the interface.