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本帖最后由 lingwenkui 于 2017-6-22 17:26 编辑 $ \/ @+ Q6 s5 M$ e( f' [2 A: q
7 ]8 K+ H+ V- d4 s; g3 S题库一些题目，自己查文档验证，存在错漏请大神轻点拍砖
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QUESTION 335- \% e" Q3 ? P9 h6 G9 k
A question about interface gi 0/1 being inerrdisable and how do you find the6 Y8 Y4 F7 H. u2 ?
reason for it being disabled0 s3 f( Y8 [; J- I
A. show interfaces g0/1 status
3 a& ]7 `, U# s8 _2 IB. show run interface g0/1' }1 x5 U! V/ A/ I1 i, Q5 L
C. show ip int brief
0 W2 {/ C7 b3 x/ Q) vD. show log
; I }. g1 b$ `, L# q% p+ ^Correct Answer: D M: N( V J/ h }% W
Answer Should Be: AD( ~9 P b: z+ d3 }1 E) d/ }3 i
http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html#anc128 w, y; ^7 `, O
3 ]( F0 Y9 J! b z8 x- e6 CQUESTION 333, a2 R& I" _5 g5 X3 L
A question about EtherChannel compatibilitymodes. (Choose two.)6 V" w& r9 Y' H+ k8 @$ e
A. passive-passive
1 M J& [' d# ?9 B; a9 n! l# B% XB. active-active. h3 V- O& c! U) h3 r ? p
C. desirable-desirable
( e' @/ m% g2 ~9 X, e6 m s; E; e. OD. active-passive9 y4 a Q! z9 K n% u
E. active-desirable
" l/ F; Y8 Z" z; I' f. ]( SCorrect Answer: CD
; _, r4 ?5 {. U5 e& ZAnswer Should Be: BCD/ g! U0 ?9 n0 k& R2 N
* H" }( I1 t, { k. R/ B, fQUESTION 271 --similar with 327- Y) n8 l, U/ |
Question about voice VLAN.
1 d Z* L7 g- E' f* F6 F8 K! ]A. Disabled by default
7 h6 ~0 W% L+ {B. Enters on untrusted port$ `7 Y. W3 ^, G0 V5 |; U) O
C. Default CoS value of 5 for untagged.....% L' X" C, M1 ?' H! y
D. Needs manual enable of portfast.# w3 }8 p% N1 @+ g
Correct Answer: A. W$ X8 `' ?3 g9 F9 i) X9 x' G
Answer Should Be: AC( i4 o* _# u0 Y& z" N
the phone sends voice traffic with Layer 3 IP precedence andLayer 2 class of service (CoS) values, which are both set to 5 by default.
: T2 x( Q/ O" @9 wThe voice VLAN feature is disabled by default.
1 k9 X- i! f0 R5 R3 b9 cWhen the voice VLAN feature is enabled, all untagged trafficis sent according to the default CoS priority of the port.' H# d' F0 L6 V6 H* x
The CoS value is not trusted for IEEE802.1p or IEEE 802.1Q tagged traffic.
3 ~/ R/ O" X9 e- c+ ?) G9 g$ S |8 _http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swvoip.html#wp1033848
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发表于 2017-6-22 17:21:58
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