单项选择题

Why does IS-IS use the SPF algorithm?（）

A. to determine the pseudonode ID
B. to determine the next hop to a given destination
C. to determine the complete path to a given destination
D. to determine the number of routers present in a given area

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热门试题

单项选择题Which BGP attribute is considered first as a tie-breaker in JUNOS software?（）

A. origin
B. weight
C. as-path length
D. local-preference

单项选择题Given the regular expression: 64900 . (65400-65410) Which AS Path matches the given regularexpression?（）

A. 64900 65000 65500
B. 64900 65402 65409
C. 64900 65000 65300 65410
D. 64900 65402 65405 65409

多项选择题Which two are valid fields in an IPv6 header?（）

A. Hop Limit
B. Next Header
C. Fragment Offset
D. Header Checksum

单项选择题You have a firewall filter applied in an inbound direction on a customer interface. You would like this filter to protect your network from a spoofed denial of service attack. Which action should be configured to accomplish your goal?（）

A. then reject
B. then discard
C. then next filter
D. then silent-drop

单项选择题Which code causes only a Level 2 adjacency to be formed under the SONET interface so-2 2 2 withFrame Relay encapsulation?Which code causes only a Level 2 adjacency to be formed under the SONET interface so-2 2 2 with Frame Relay encapsulation?（）

A.
B.
C.
D.