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本帖最后由 lingwenkui 于 2017-6-22 17:26 编辑
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0 U$ [5 F4 d& O' b' y& Y O题库一些题目，自己查文档验证，存在错漏请大神轻点拍砖/ {1 A B# b0 V2 A
$ n4 X: N6 T2 x6 SQUESTION 335
" `8 A6 R5 Z# h; S3 NA question about interface gi 0/1 being inerrdisable and how do you find the
) O4 |8 M1 F3 Q) d7 [- d% w1 Ereason for it being disabled" V. M: I9 |: G
A. show interfaces g0/1 status
% n$ R' y; Q2 B ^' h: g/ T0 tB. show run interface g0/1
& Z4 v+ o) o2 X ?8 yC. show ip int brief- P2 y$ h8 F+ t% W7 ]2 W
D. show log
' r2 F1 @3 _, U+ P( ICorrect Answer: D" ~, Z( X v' p" w5 {8 Q( A
Answer Should Be: AD/ Z* @9 L3 _- ~# r- m1 J- z7 j% p
http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html#anc12: B- r* J: X$ x. q
( H4 m9 Z% P6 T' I" kQUESTION 3337 u4 r# V Q0 V5 ^, K
A question about EtherChannel compatibilitymodes. (Choose two.)8 ?& J! Q- x. o# d
A. passive-passive
% X% ?! ~1 b8 z7 W0 [B. active-active) [% S( u4 h# g
C. desirable-desirable+ _, C- V- V+ `- `3 E
D. active-passive
( W' f( Q/ g) v8 n, N4 w U5 S) ZE. active-desirable
5 u6 [" F8 }: ?9 a$ l; A, ~Correct Answer: CD& n5 I: A9 Z$ S A
Answer Should Be: BCD7 i+ U8 e' M; k& A l7 N2 X; O
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QUESTION 271 --similar with 327: j5 ^* g- n% k5 L- Y! u1 F
Question about voice VLAN.
0 j' a; e: \- ~% D4 W% B( IA. Disabled by default/ r F" D0 Z9 T9 w3 Z
B. Enters on untrusted port" K# M0 P( _1 M; b- I! B# I
C. Default CoS value of 5 for untagged.....
: _& Z" H* N6 z' pD. Needs manual enable of portfast.- W" M: Q- o% j( K* ^( j
Correct Answer: A0 }; C: a' s# Z4 v( t' d
Answer Should Be: AC
) a$ N" w7 G# a5 ~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.9 ^8 i. }! W% X- E5 }$ B5 L
The voice VLAN feature is disabled by default.
1 Y+ E( @& n& m4 r; U9 aWhen the voice VLAN feature is enabled, all untagged trafficis sent according to the default CoS priority of the port.
x) f5 I2 k1 D4 w, I- A5 S$ f' rThe CoS value is not trusted for IEEE802.1p or IEEE 802.1Q tagged traffic.
0 X/ J; a% Y* k' E5 C+ {' Jhttp://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swvoip.html#wp10338485 Y: U& [7 v! `6 l/ |
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发表于 2017-6-22 17:21:58
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