CCIE系列认证
问答题Why does the bgp summary command always carry the as-set keyword？
题目
相似问题和答案
第1题：
A. show ip bgp paths
B. show ip bgp peers
C. show ip bgp
D. show ip bgp summary
第2题：
A. aggregate
B. summary bgp...
C. aggregate X.X.X.X ...
D. area ..range
第3题：
A. show ip route bgp
B. show ip bgp
C. show ip bgp neighbors
D. show ip bgp summary
第4题：
Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?（）
- A、 The df command only counts the number of disk blocks and superblocks.
- B、 The df command ignores space used for inodes, gnodes, and vnodes.
- C、 The du command does not take into account filesystem metadata.
- D、 The du command counts indirect blocks and superblocks in its calculations.
正确答案:C
第5题：
如图所示：在RTC上完成配置，使RTD上只接收到一条最优的聚合路由，并显示聚合网络的AS_PATH信息。（）
- A、[RTC]bgp300[RTC-bgp]aggregate160.0.0.08detail-suppressed as-set
- B、[RTC]bgp300[RTC-bgp]summary160.0.0.011detail-suppressed as-set
- C、[RTC]bgp300[RTC-bgp]aggregate160.0.0.011detail-suppressed as-set
- D、[RTC]bgp300[RTC-bgp]summary160.0.0.08summary-only as-set
正确答案:C
第6题：
Refer to the exhibit diagram and config uration. RTB is summarizing its networks from AS 64100 with the aggregate - address command. However, the show ip route command on RTA reveals the RTB individual networks as well as its summary route.Which option would ensure that only the summary route would appear in the routing table of RTA?（）
A. Add a static route with a prefix of 192.168.24.0 255.255.252.0 pointing to the null0 interface.
B. Create a route map permitting only the summary address.
C. Delete the four network statements and leave onl y the aggregate - address statement in the BGP configuration.
D. Add the keyword summary - only to the aggregate - address command.
第7题：
Does it always matter if the “real world” is not being practiced in the classroom? Why or why not?
It is always desirable to practice language in the classroom as it is used in the real world, since students will have to use the target language in real communication outside the classroom. However, it is not always possible to do so because classroom is after all different from the outside world no matter how hard you try to simulate the real world situation. And it is not always necessary to do so. Language teaching is conducted at several stages. At the drilling stage, when the focus is on language form, the “real world” does not have to be practiced. But when the focus is on meaning and students are engaged in communication activities, the “real world” practice does matter much. It is where the students learn to use the target language for real communication, and to use it appropriately.
略
第8题：
A.The last default - network statement will always be preferred.
B.A route to the 140.140.0.0 network does not exist in the routing table.
C.Default - network selection will always prefer the statement with the lowest IP address.
D.A router will load balance across multiple default - networks; repeatedly issuing the show ip route command would show the gateway of last resort changing between the two networks.
第9题：
A router has two paths to reach another network in a different autonomous system. Neither route was generated by the local router and both routes have the same default weight an d local preference values. Which statement is true about how BGP would select the best path?（）
- A、To influence one route to be preferred, its default local preference value will be changed via the use of the command bgp default local - preference 50
- B、Th e router will prefer the shortest autonomous system path
- C、If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MED
- D、The router will prefer the route with the lower MED
正确答案:B
第10题：
Why does the bgp summary command always carry the as-set keyword？
正确答案:BGP route Aggregation may causes the loss of path information such as AS-path .AS-SET is used for loop-prevention while aggregation happen. When AS-SET is performed， the aggregate route contain an unordered AS number list along the path to the destination.