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本帖最后由 lingwenkui 于 2017-6-22 17:26 编辑
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题库一些题目，自己查文档验证，存在错漏请大神轻点拍砖% C m) M, m/ O6 @' p) o" [$ _9 R/ z
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QUESTION 335
2 j& J& O f' j/ A" sA question about interface gi 0/1 being inerrdisable and how do you find the
5 B3 d: a- G' y2 v; Areason for it being disabled
. I" `, l- b- v# Y/ e& ZA. show interfaces g0/1 status
3 l+ L3 C; w {9 E" O }B. show run interface g0/17 L$ y( `- E6 X( |. Z) E3 d
C. show ip int brief" z5 U# H& X2 x" b4 h; V3 m
D. show log
- H' w' }2 L4 J" D9 \3 E3 c" U3 rCorrect Answer: D9 G6 C& R. Z% C |, D6 m
Answer Should Be: AD+ ?) m3 ` a! J, p
http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html#anc12$ ^# l* i; i3 V
4 _) d! p) ?* n: m, \% nQUESTION 333" B( {& v9 ?& r8 N8 V% x
A question about EtherChannel compatibilitymodes. (Choose two.)5 k3 H. }6 K' g2 n* A) @9 m
A. passive-passive
* w2 `! k' a! a m1 _7 GB. active-active. V& S2 F% l L ~
C. desirable-desirable" W3 |$ S, i4 k, W1 W' l
D. active-passive, W6 D, g0 I" @& m, x* L: y9 t5 c- [
E. active-desirable
4 O( L5 ~! x& ?Correct Answer: CD1 h# H) c; m% S7 e+ J0 M1 t
Answer Should Be: BCD+ O0 w" ^5 L% h, T, J/ E4 g' ^
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QUESTION 271 --similar with 327
$ J, u" S! `" h9 w" KQuestion about voice VLAN.
W) v: ] z1 G ?+ X% {. U1 xA. Disabled by default7 ^$ ]" |" F! t8 q: r
B. Enters on untrusted port# R5 ^' M0 p6 O: L, i6 S
C. Default CoS value of 5 for untagged.....
t1 T4 z& o$ X# iD. Needs manual enable of portfast.
; L/ W8 w/ T# ^2 G+ f( zCorrect Answer: A6 w! N8 r, r0 ^! C
Answer Should Be: AC
% _! S. Q$ y9 R( x" jthe phone sends voice traffic with Layer 3 IP precedence andLayer 2 class of service (CoS) values, which are both set to 5 by default.
9 T U( ?/ x# x' l; JThe voice VLAN feature is disabled by default.$ D, }; P3 u6 N$ M
When the voice VLAN feature is enabled, all untagged trafficis sent according to the default CoS priority of the port.
, \# v( u. n# Q5 [# e6 q! S. FThe CoS value is not trusted for IEEE802.1p or IEEE 802.1Q tagged traffic.
& m1 _6 `8 t4 ^: O7 o, yhttp://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swvoip.html#wp10338480 V" R5 r& K9 \' d0 x9 {
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发表于 2017-6-22 17:21:58
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