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本帖最后由 小乔 于 2015-12-29 10:34 编辑 + R, `5 ~: M7 Z. w1 d6 W8 R
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新题为考生考后回忆，题目不完整仅供参考4 m) t0 s+ N) {+ n- F' J
& g5 |5 {' z) H- c- d. T0 OQuestion1 rag and Drop Question' N4 E2 `$ ]9 m, |# G" X. e
CDP
* q3 b' [! _8 ^2 S5 F6 y– multicast destination address 01-00-0c-cc-cc-cc
$ N F5 ?+ @" y5 t \5 o' s– 60 seconds3 s8 T% S( i2 y# X
– compatible with Cisco Discovery Protocol uses IEEE 802.2 and 802.3 encapsulation only.9 ^0 ~: x! u. @# d) O, ~# o. r
LLDP& d% J1 V+ I$ M& k) w( T) p5 ]2 T
– multicast destination address 01-80-C2-00-00-0E //03 r 00
% q' ^) H' s. e% u– 30 seconds
2 t0 E# V$ l6 ^1 t– Inform topology change
+ f5 ~- S5 b: _8 ]% o1 c( r$ ^Question2:
$ [) q" {0 X- |6 ~2. How many table in DHCP snooping database can bindings?
" h& m: A* \7 N% B. ^6 jA. 1000
) O1 J7 X) B* X) P) u3 a C1 J; kB. 2000
- h5 r( M, R* @C. 4000
6 n" M& G) c' l9 E! C5 l% K% AD. 8000
+ v% v3 L7 n# f) u: U7 C/ s. I6 \. lAnswer: D: 8000 (The DHCP snooping database stores at least 8,000 bindings.)
% y$ A4 b& i' uQuestion3:. f9 J3 Z" E- O- J8 M* ]& ~
Engineer request to set half of cdp transmission default time7 ^& n0 T* l& ?. B+ }
Answer : cdp timer 306 B" w* h& U" f" m& v F! `# j
Question4:0 }3 H' t2 D1 Y2 l4 p: ~" a0 o
On which layer does IP source guard provide filtering to prevent a malicious host from impersonating IP address of legitimate host?
8 ~ T+ G) X: rA Layer 1
' S X7 J* v& n8 N" mB Layer 2
0 d+ v9 J0 k6 W: Z# v9 DC Layer 31 F% {3 I2 f$ y4 a( ]4 j; i
D Layer 7
; o* Z1 p) A) B5 q. M- \/ m$ nAnswer : B: Layer 2
! J# v7 ]% u* F, `1 \Question5:
7 J d, N4 ^: {$ ]Which feature puts the port into err-disabled state when the port has PortFast enabled and receives BPDUs?
6 U2 K5 D8 I6 L1 W0 Y0 Y- dA EtherChannel
+ j( c2 M% \. R# bB BackboneFast* l( \! E4 x8 d* T. t+ |. t& P
C BPDU guard6 X. {8 S: ^% V; x
D BPDU filtering3 e! [2 U* t7 H' T" b6 ^
Answer : C: BPDU guard
8 E& K. R7 V; } r2 EQuestion6:* c+ J7 t. k, \+ \0 P2 Y7 u( |
When SDM templates are configured, which action must be performed for the configuration to take affect?' E7 T' A6 S1 g- {% R. q9 m
A write memory+ Y/ I0 T' u/ x' P
B shutdown
/ j O; n6 c* j. w+ cC reload3 G( Q6 n! L! A# q3 ]% ]* ?
D backup config7 m0 l9 k/ m0 H8 h# S
Answer : C:reload
' t3 [9 l' _! j* {Question7:* H+ g3 ^5 Z) ]; Y
Which of the below options is VALID for etherchannel load-balancing?
- `' N. W8 W# h3 na) source mac , destination ip
, r6 a4 d3 j( S$ kb) source mac , destination mac
0 B6 o% J! u1 Cc) source ip , source mac2 l2 e; b# e0 H. u+ E
d) destination ip , mac ip
# q0 s/ m; H( v9 \4 V5 I5 x5 \; sAnswer: B
! Y# O4 m7 s7 t+ wQuestion8:5 T5 U( C( L3 m$ v
Which two statements about SPAN source and destination ports during an active session are true (Choose two.)& t1 h" g$ Y+ [: k, M+ }
A the destination port can be destination in multiple SPAN sessions- V% |5 ?7 t3 R# Q0 B! _
B The source port can be only an Ethernet physical port
2 R) f7 |9 R `+ W0 }$ QC The destination port does not participate in STP& S2 f- v( e) _, m: k6 |8 ?3 p
D You can mix individual source ports and source VLANs within a single session& ^& [: }: R; H# J8 N n
E The source port can be monitored in multiple SPAN session.
8 l& b5 U9 A& O% T5 I7 H8 sAnswer:C,E/ u) p% s+ e) B: p9 l+ Z# x$ j
– c) The destination port does not participate in STP7 i# v% M% S4 c5 u8 t
– e) The source port can be monitored in multiple SPAN session.
/ k+ { M$ L# a$ D& UQuestion9:" N! [5 e* }' J0 V
MST Configure on switch (spanning tree mode client)
; C+ ]$ y! V8 O; E3 vAnswer: Configure Manual, same region name, revision number and MST instance VLAN mappings." V6 s+ R( p! Y! i! i3 O7 p7 [/ x
Question10:* Z9 z8 p& ^4 e/ T7 i! s
11. What is the max. “stack bidirectional speed”?* m. ]2 b' W( Z7 u5 A9 M8 c
A) 8000
' h# `0 o3 x" h9 ] o+ q, sB) 16000; }3 ~* V% h7 v9 I; B; c; w
C) 32000 *** k3 P' \- r* [: f' C% ?' T
D) 64000$ C9 \4 Y K8 b+ X
Answer: C:32Gb
& X4 v( E5 L& v, N2 T- iQuestion11: p1 G# F! i5 _
What’s state of port security by default in a switch.2 V% A. O1 `* Y: i) ^
Answer: Disabled
( D4 b, B( H% Q) ?& J0 ?+ CQuestion12:
: @+ x. {8 z' @+ o$ ~Exhibit of HSRP with problem with secondary (error is duplicate IP address on 1 of switch port that duplicate with virtual ip address)
2 U7 i, I! }* _& q6 @! f& [a) misconfigure
: M) f$ v# R; ]3 L3 ?b) PC’s IP address( k& w) K1 `* J7 s
c) STP Loop (This should be answer)$ _( F- j1 f- g/ P; {; H
d) can’t remember
' A5 X' J' [$ v* q \7 ]4 D) mAnswer:C
8 Y: I3 {. D1 O! [( q7 W0 mQuestion13:
s! R8 o' @+ C0 t4 V. [7 aWhere does a subordinate switch in a stack store the information about VLANS?6 Z$ m" O+ a4 ~* b4 R" z
answer : vlan.dat- {. ^; T5 |+ w7 I
Question14:
* Z6 C9 x+ K( n! a" uOne site is “active” on port channel what other side can you configure? Choose two.
( I$ i9 w0 h/ F' V( N+ x( wA) Active **& I: c9 b% I; j
B) Passive **; c9 K3 i6 M# A# T: T0 {# G
C) Auto
3 B; |! R/ n- q7 s$ |D) Desirable
0 V9 S& `& `3 \! j C* QAnswer:A,B:Active, passive
3 h0 k! a& i0 K. l9 PQuestion15:# p+ j! N6 P4 j, C
Which two options are two results of using the command spanning-tree vlan 50 root primary within a spanning-tree network under global configuration (Choose two):; f8 T$ u: ?3 ]4 f7 t' w, j. ~
A) The switchport that is configured for VLAN 50 is the primary connection to the spanning-tree root switch$ d# {3 D% M( \# ]3 [# {
B)The primary value for VLAN 50 is set to 4094 on the root while the local switch priority is set to 32768& s! Z( @. k& i
C) All ports that are configured on the current switch with VLAN 50 transition to designated ports3 y$ h/ j' e T- |! o U$ D& Q- d
D) Spanning tree determines the priority of the current root Vlan 50 and reduces the priority of the local switch to lower value4 ` w/ A: m8 r# O' v9 T
E) The spanning-tree timers are reduced to improve the convergences time for Vlan 50
3 g9 [- y) o5 ]! a$ YAnswer :C,D
% [# s5 Z2 O5 x4 q– C) All ports that are configured on the current switch with VLAN 50 transition to designated ports (because Root switch has only designated ports)
5 [( ?! L. u& c3 ?) b– D) Spanning tree determines the priority of the current root Vlan 50 and reduces the priority of the local switch to lower value
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发表于 2015-12-29 10:39:22
