單項(xiàng)選擇題

Refer to the parti al configurations in the exhibit. What address is utilized for DR and BDR identification on Router1?（）

A. the serial 1/1 address
B. the serial 2/0 address
C. a randomly generated internal address
D. the configured router - id address

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多項(xiàng)選擇題

Which two statements are true about IS - IS?（）

A.Interfaces have a default metric of 1.
B.Level 1 is intra - area and level 2 is interarea.
C.Level 1 routing is between an end system (ES) and IS while Level 2 routing is between an IS and IS.
D. Hosts send ISHs while routers send ESHs.
E. IS - IS is an open standard.
F. Metrics depend on interface speed.

多項(xiàng)選擇題

Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）

A. supports VLSM
B. link - state routing protocol
C. operati on is similar to BGP
D. supports two routing levels within an autonomous system