多項(xiàng)選擇題

Which three statements are correct about the differences in IS - IS and OSPF?（）

A. IS - IS is more CPU - intensive than is OSPF
B. For greater fine tuning there are more IS - IS timers
C. IS - IS LSP con tains TLV fields and OSPF LSU contains the LSAs
D. New additions to the protocol are easily implemented in OSPF but not with IS - IS
E. OSPF has more area types than does IS - IS

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多項(xiàng)選擇題

Which three characteristics apply to IS - IS but not to OSPF?（）

A. uses a default IOS metric of 10 on each interface
B. uses an on - demand circuit to reduce the hello and LSA flooding across switched WAN li nks,such as ISDN
C. uses a DIS and a backup DIS to present the psuedo - node on the LAN
D. encapsulates PDUs directly into a data - link frame
E. uses stubby areas to improve network scalability
F. runs PRC (Partial Route Calculations) to calculate IP re achability information

單項(xiàng)選擇題

Why should iBGP sessions be fully meshed within a Transit AS?（）

A. BGP requires redundant TCP sessions between iBGP peers.
B. Routes learned via eBGP are never propagated to other iBGP peers.
C. A full mesh allows for optimal routing within the Transit AS.
D. Routes learned via iBGP are never propagated to other eBGP peers.
E. Routes learned via iBGP are never propagated t o other iBGP peers.