Which two provide intra -area routing services?（）……

多项选择题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

多项选择题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

单项选择题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.

单项选择题Given the network diagram, which address would successfully summarize only the networks seen? （）

A. 192.168.0.0/24
B . 192.168.8.0/20
C. 192.168.8.0/21
D. 192.168.12.0/20
E. 192.168.16.0/21
F. These networks cannot be summarized.

单项选择题Which routing protocol will continue to receive and process routing updates f rom neighbors after the passive - interface router configuration command is entered?（）

A. EIGRP
B. RIP
C. OSPF
D. IS - IS