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本帖最后由 lingwenkui 于 2017-6-22 17:26 编辑 ! t6 E# {0 j( o3 E# m7 V m
) D* U6 x3 p- U2 j) z- q题库一些题目，自己查文档验证，存在错漏请大神轻点拍砖0 l+ ? s) o1 j0 w$ L
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QUESTION 335$ C" J" n% }4 \
A question about interface gi 0/1 being inerrdisable and how do you find the
& O1 \8 q& `9 zreason for it being disabled
) U0 e% O" p% C, I) B* x W# ^4 xA. show interfaces g0/1 status
( C0 z3 z! \& J2 @# T n' BB. show run interface g0/17 o# i; Q0 S$ u& B4 A+ k! L H- h3 K
C. show ip int brief
& |2 J7 z& p, G: i" s! l3 ]! z/ ID. show log
9 b8 d7 f8 U! SCorrect Answer: D
0 }0 b- p) o$ k6 [6 @ P1 ]/ qAnswer Should Be: AD! i$ w+ _ F, r5 n. d2 I- |
http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html#anc124 O T( m6 ]( }( |4 s
" G' w) \( P) A1 A# YQUESTION 333" u. C) I5 E; l; s4 c/ z
A question about EtherChannel compatibilitymodes. (Choose two.)% i6 u# D6 g/ }) i$ A
A. passive-passive# f1 g3 @7 x% ] a8 Y9 H/ T
B. active-active# S5 F; O& M+ R' E1 j5 \2 ]
C. desirable-desirable1 |" ~7 g. i- q6 n4 M$ `" p
D. active-passive- g. c$ g9 s( P" O" P
E. active-desirable. u( P7 m' b1 B% ?
Correct Answer: CD
: b3 t9 u8 B2 j2 r/ Y4 c. [: zAnswer Should Be: BCD {, E4 n' q9 z4 F6 v
8 s% q+ P: ?. x ]QUESTION 271 --similar with 327
- E: \+ y$ T+ q: h3 }Question about voice VLAN.8 l' l: _- A6 o
A. Disabled by default
/ A' A1 [' E4 ~+ z# ^9 D7 IB. Enters on untrusted port* X) m7 Q+ D1 u7 X+ D
C. Default CoS value of 5 for untagged....., W. S. m, X4 o$ P+ x' A3 n
D. Needs manual enable of portfast.
7 N; e; U4 u3 C, LCorrect Answer: A. ^4 ~* O# B3 Z( g) l
Answer Should Be: AC* o$ W4 J5 _9 E
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., w! c9 q, X: ~- B" u; k7 S
The voice VLAN feature is disabled by default.
! B- z% T" k' k9 eWhen the voice VLAN feature is enabled, all untagged trafficis sent according to the default CoS priority of the port.
1 |+ u' @) e2 Q' K2 s# @The CoS value is not trusted for IEEE802.1p or IEEE 802.1Q tagged traffic.& ?/ K \4 }; s0 K$ ?. {- B
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swvoip.html#wp1033848- C& z+ j0 D7 N) M/ _
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发表于 2017-6-22 17:21:58
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