2018.03.29路由题库中第483答案求教

renyuan559431

QUESTION 483
# n5 `4 t7 K2 A/ rRefer to the following
( Q9 L4 {, i. v! J+ Z# U' aLogging Console7
. }9 ]+ H0 Y$ w4 p# jWhich option is one of the effects entering this command on a Cisco IOS router, with no additional
2 u& U, H6 L6 glogging configuration? A. Debug messages can be seen on the console by enabling "terminal monitor."
/ ?$ _, t2 P) v* Q" k" pB. Debug messages are logged only on active console connections.
C.  A user that is connected via SSH sees level 7 messages
D. The router can experience high CPU utilization
0 p. S" ]" ^' i, u, oCorrect Answer: D

5 q2 a0 k) C# b$ ]个人觉得这道题答案有点问题，logging console 7 的意思是显示全部7级日志信息，第七级是debug信息，结合“terminal monitor”能显示出来，所以个人觉得这道题答案应该是A，求高人指点，谢谢
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anubis_amon

debug信息必须敲debug命令才能显示啊

609939217

不需要terminal monitor

609939217

有问题的题目还有几个

609939217

Which three characteristics are shared by subinterfaces and associated EVNs? (Choose three.)
A. IP address
B. routing table
0 k& x) P) T; E( TC. forwarding table
3 p  F+ O: [8 ^+ M  @1 H8 @D. access control lists
E. NetFlow configuration

609939217

答案ABC
国外大神给的分析它认为A是对的BC是错的，我也是这么觉得VRF本来就是隔离路由表和转发表的怎么可能共享？
) d# _' C: L/ VAll the subinterfaces and associated EVNs have the same IP address assigned. In other words, a trunk interface is identified by the same IP address in different EVN contexts. EVN automatically generates subinterfaces for each EVN. For example, both Blue and Green VPN Routing and Forwarding (VRF) use the same IP address of 10.0.0.1 on their trunk interface:

: B2 e+ T8 r  K: f( @vrf definition Blue
/ W6 [- G/ W1 t* p* N! Wvnet tag 100
vrf definition Green
! a* n0 c2 _7 B% k2 F# \" a$ Pvnet tag 200
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interface gigabitethernet0/0/0
vnet trunk
ip address 10.0.0.1 255.255.255.0
) y# R, i- t* g7 F# [0 Z, ~0 d-> A is correct.

4 z8 N, _/ U1 c  Q# qIn fact answer B & C are not correct because each EVN has separate routing table and forwarding table.

Note: The combination of the VPN IP routing table and the associated VPN IP forwarding table is called a VPN routing and forwarding (VRF) instance.

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The following are not supported on an EVN trunk:
! C1 w, ]$ d9 K: @' P9 U% g2 `' _◦ access control lists (ACLs)
◦ BGP interface commands are not inherited
8 v6 L4 B- A+ O$ A: ?. m) I◦ IPv6 (except that IPv6 is supported on vnet global)
◦ NAT
◦ NetFlow
1 T2 z: F2 W; |- k; O, ]◦ WCCP
文档上同样又指出不支持Netflow 和 ACL，简直就是坑爹的玩意。

~777~

來參考一下~

古月哥欠

a9887921

感谢楼主汇总分享！

a9887921

感谢楼主汇总分享！