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本帖最后由 lingwenkui 于 2017-6-22 17:26 编辑 # O3 w/ d5 l0 W8 }' |+ O1 B+ W$ D
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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2 d2 b r/ Z9 D% `
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QUESTION 3359 a* r; `3 m# T! l) p1 P
A question about interface gi 0/1 being inerrdisable and how do you find the8 e! X Y, \' O1 ^5 O2 X% }
reason for it being disabled+ w( {( V" U; [' e" [% _
A. show interfaces g0/1 status
, Q) l; y) R# _2 \$ _# vB. show run interface g0/1
3 h, K; d& ~5 p) }( r$ mC. show ip int brief
) @6 w4 V. ^' k6 U0 p J) gD. show log5 n4 Y; F* `3 Q9 q* w
Correct Answer: D
2 C2 u- h& H' W$ U: u7 l6 s! xAnswer Should Be: AD
9 W+ E0 f0 ]: D1 z' \http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html#anc12
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QUESTION 333! [# l' x7 v- @/ `: }2 y
A question about EtherChannel compatibilitymodes. (Choose two.)
\* P1 J2 b) [# V/ a& X3 aA. passive-passive8 p1 A; t {" n* |5 h8 `1 R
B. active-active* f, I1 U$ J" _2 }5 O! ~& A
C. desirable-desirable+ w: M# b* l) M. K' u, F, u n
D. active-passive
1 P0 n, E5 _# b( A% ~0 OE. active-desirable9 X5 z. F5 N& |) [6 X0 j
Correct Answer: CD8 U5 {( b& b! b
Answer Should Be: BCD
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QUESTION 271 --similar with 327
' w1 A+ \& u1 n* u1 oQuestion about voice VLAN.
% g5 z6 @! C }. W4 R/ V% }) AA. Disabled by default
1 R; u+ h O9 k/ zB. Enters on untrusted port+ c, i, p2 H3 k2 g6 Y. U
C. Default CoS value of 5 for untagged.....# w" l- K- g6 r) A# s1 W! ~
D. Needs manual enable of portfast.! j- G8 H: f$ P* A
Correct Answer: A
0 {* H9 t3 v7 A( B" r. E$ RAnswer Should Be: AC0 q+ ~7 S9 [) R' }4 `2 i
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.
& [4 j! v! u1 F! p2 CThe voice VLAN feature is disabled by default.
/ }+ Q! e6 j* u' AWhen the voice VLAN feature is enabled, all untagged trafficis sent according to the default CoS priority of the port.$ z) s7 W0 E/ A( R& ~
The CoS value is not trusted for IEEE802.1p or IEEE 802.1Q tagged traffic.$ a- G$ ?1 {6 I* E, B/ l* a/ m- u6 @
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swvoip.html#wp10338485 C; H; |6 p- C0 y6 _# m) g
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发表于 2017-6-22 17:21:58
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