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1. What is the Ethernet frame size for 802.1Q?+ X, [- q) k2 V' \+ A1 @
a. 64- p1 I0 ?& p+ q
b. 128: O; T+ t6 J3 t& m. _+ F
c. 1518, j: _1 ~5 i. Z5 ? M$ ^3 Q
d. 1522 **
6 ~) z5 ~( j4 \1 V- n1 R3 oAns: D
% n9 Y! k! b+ G& }' f9 K/ i————————————————————————————————————————————————————————————
8 x, i1 J3 q E4 s9 E: D& K6 W2. How will the traffic reach the core switch from AS switch to DS core switch?
7 R+ O1 V. L8 J( w0 V6 g2 |# V. D(Based on a topology shown with one core, two distribution and two access switches on each distribution switch, with redundant links and bandwidth mentioned.)
6 R3 Y/ P5 G% \' p$ S% D+ c+ V) |. I: `a. ASW1 to DWS1 to core
6 I! W2 ~& S# T) ~# P1 F- sb. ASW1 to DWS2 to core **
4 ?, L% p9 v& z2 D. V rc. ???* f& Z6 t2 V: ~" d% k% A W0 @
d. ???
7 c) M; f( _" DAns: B3 @ a0 F0 u6 f0 F5 C. `" e) C- ^ L
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: o4 F* I0 U+ q0 m+ B/ j5 Q4 l; C3. If HSRP group number is 45 what would be the MAC address?
: W! x t; A; M(Basically conversion of digit to hexadecimal with group of 16.)
4 U+ l5 n1 ?0 x$ sa. 00-00-0c-07-ac-2D5 K! B+ X9 ~( P; w6 Q) f
b. ???
/ S2 g* N" ]% d+ Wc. ???! Y' Y1 z1 l- @' X w# F
d. ???7 U M3 M. M! e- J
Ans: A9 R9 N- Q4 [6 G; }; }8 D& d
Explanation:
$ m# }4 H r# e9 v [8 z$ `$ v00-00-0c- 07-ac-2D" }' @% C1 o4 U2 m
CISCO_ID :HSRP_ID:GROUP_ID
5 G; H# {/ {! W2d=45: ~7 `1 }1 C" E# |! J2 p8 X
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- f) v& A2 O- e2 H3 s+ t# s' ~4 A question on EtherChannel misconfiguration…….
9 q9 Z, t2 E% c0 J. X1 A& @a. Enable this feature by using the spanning-tree etherchannel guard misconfig global configuration command. **
* k9 {4 @; c" Tb. ???* K2 x3 U: ~ n5 l j, F3 R& N7 {
c. ???1 k& ^( F, C2 V ~# k$ c1 G+ \
d. ???
& o; y! i) G. @& DAns: A
+ M9 m3 |9 n4 d————————————————————————————————————————————————————————————% `8 j k$ s' a6 S
5. Select a valid VRRP configuration from a list of possible configurations.5 n; U( q# s1 m1 `# i" X
a. vrrp [group-number] ip [ip-address] **: q0 g9 S. o0 h) P0 k E: B, H+ P
b. vrrp [group-number] priority [priority] **1 _0 W3 M8 N/ |2 k1 \7 ^7 @6 {1 B) X
c. vrrp [group-number] preempt **& M$ a+ @$ K( L2 B% y7 g
d. ???
7 R- s% z' g( J0 T I9 x4 l5 re. ???# @4 @4 E+ b2 E
Ans: A,B,C
0 G( i+ {8 }8 C. M0 _- [2 |Explanation:
3 t- h2 Z1 I! [% x+ gYou can eliminate configurations with the word ‘standby’, as that would be HSRP, not VRRP. Also, I think the options that put things like vrrp group 1 ip x.x.x.x are wrong. You don’t need the word ‘group’ in the configuration line. The number 1 is the group number. Anyway, just take a good look a t a few valid VRRP configuration examples so that you will be able to recognize invalid ones.% P; I9 y% {$ X H
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( t7 R( X$ M& F; n6. Private VLANs (PVLANs) have two secondary VLAN types.6 r9 X; }6 n* S! a4 A
a. community **: o4 o/ d5 S0 E3 P8 ~! d
b. isolated **( w. {% }; @7 h$ v5 B
c. ???
+ D% z. v9 |2 t* N* O( p7 Vd. ???% J2 B9 K: k; C; ?
e. ???8 }6 g7 Y8 X6 _+ L1 J6 m; I
Ans: A,B
5 b' q9 S2 ~/ w" T9 A____________________________________________________________
# V$ }' K, y, y, q9 H. |2 a- q. x7. What types of SDM templates you can use in switch? (Choose three)7 N/ s! R$ ~; R% ?% L$ g2 K
a. Access *** D; T- m" K# ~
b. Default **: R2 }$ {# B0 S- h
c. Routing **1 I5 W; P# Z' u6 [4 Y% w
d. VLANs **
2 v4 W% w% P l' W# k% L2 |$ ~e. ???5 n/ w: \) u/ `- r& e# O6 q
f. ???6 }7 _9 J, [. R! ?( d4 J
Ans: A,B,C,D (note: the question asks for 3, so 3 of the 4 correct options should be in the real exam)2 U _/ ^5 b y7 {7 J: h6 J
Explanation:' ?. w8 N, u0 e
+ Access – The access template maximizes system resources for access control lists (ACLs) to accommodate a large number of ACLs.
; |; q7 M6 [: f& J ~+ Default – The default template gives balance to all functions.
( ]/ x5 s$ H0 ]) d( A+ Routing – The routing template maximizes system resources for IPv4 unicast routing, typically required for a router or aggregator in the center of a network.7 t# O# |7 w) [: u7 N
+ VLANs – The VLAN template disables routing and supports the maximum number of unicast MAC addresses. It would typically be selected for a Layer 2 switch.% d$ \# H+ e0 T/ r/ J$ n1 U. j
____________________________________________________________
, _4 Z* O. M# K: z( c: [8. EtherChannel – what is the process to configure EtherChannel.6 j5 g5 I- @; R6 N! G
a. shutdown both interface ports **
, P) |0 }0 e, Lb. shutdown the interface on one side only) B4 z7 m( Q1 M4 m6 @0 I9 o9 i
c. ???
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Ans: A
2 j/ E3 |5 v* V/ s+ [% A# j____________________________________________________________
: Y) `( a& s: L! P6 W0 H9. A question about spanning-tree port-priority.2 [+ u" i# l0 }) ~1 j. M9 `. s
a. 127 **
# X0 P# f5 o' R8 Vb. 129
; J/ z; g0 h) ~- Vc. ???
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Ans: A9 a2 s8 Y8 }* `. x
____________________________________________________________
2 @/ v8 Z6 o7 b: p* \6 `10. Question about EtherChannel based on STP EtherChannel misconfig……
( `2 n( l; v2 v* ua. (config)# spanning-tree etherchannel guard misconfig **
; H3 y7 w9 k) Mb. (config-if)# spanning-tree etherchannel guard misconfig( O! O" O7 j/ {+ G' E, Z
c. ???4 b6 p0 Z0 v" Z
d. ???' ^% X4 D* x+ u' o, h4 n# X, w
Ans: A; G# Q3 A- {/ m4 D
________________________4 E4 q; {* d: n5 @& R5 m6 z- Q1 O4 o
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46 Question about voice VLAN.3 p! Y/ \' w1 b7 |: R( q
a. Disabled by default **
% I0 d4 w% l& ^6 M$ b+ ib. Enters on untrusted port! R, ~( X* v: r6 r
c. Default CoS value of 5 for untagged….. **1 T/ m4 T/ g" n6 \; p6 S+ h
d. Needs manual enable of portfast.. m' B' e0 Q* x. f% D' U3 i7 }
Ans: A,C
" T2 f* B1 ?* f____________________________________________________________' v* u) \9 n6 {3 W
47 . Question about UDLD aggressive. (Choose two.)
6 K1 G& o7 \9 L& y% Q2 I+ Oa. UDLD messages are sent every 15 seconds. **
5 [7 @$ U. e C" O. d9 Wb. UDLD tries to reestablish link once before declaring the link down.
" a4 k% K1 e# e& rc. When unidirectional fail is detected, port state is determined by spanning tree.4 Q, s& \2 Q# t. |1 P1 W3 S2 [
d. When unidirectional fail is detected, port is turned to errdisable. **
6 y. b( `: w3 _8 |e. UDLD sends messages four times the message interval by default.
, Q' t; ~" _& j4 b" [& y Sf. UDLD automatically … message interval based on configured timers.+ e: p. C" \5 i5 l- t! G
Ans: A,D+ r7 e. _- y% D/ Y J! K
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48. Diagram is: with 1 core, 2 DSW connected with EtherChannel, 2 ALSW, 2 PCs per ALSW. Per diagram current root for VLAN 10 is DSW2.
9 g1 G! Z0 z# t( D; W' J4 PQuestion is how to make DSW1 the primary root for VLAN 10. (Choose two.)
* p7 z Q* i. |+ E8 p$ g6 {a. DSW2: change bridge priority to 61440 (highest). **- `! o( o" W- _/ w2 N9 k: _
b. DSW1: change bridge priority to 4096 (lowest). **
# `1 L: I6 r( }) g; |c. DSW1: change port priority but in global configuration mode.
* |" x8 p5 @; c Pd. DSW1: change bridge priority but value is 0.* G5 u9 j1 u0 i* w1 Z
e. DSW1: change bridge priority but command is priority root.; U# U% U H0 A
Ans: A,B5 ~5 {$ T7 {9 S% |) e. f: ]) L
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5 o( m: T4 y- J w; U4 p49 . How to configure dynamic ARP inspection on a VLAN?
4 a' s ?5 D# O5 b( A. \8 qa. (config-if)# ip arp inspection vlan
4 U, n! K! Q4 n+ z0 G9 e% g# qb. ???1 H7 @& ~+ n% ?; ~1 r
c. ???. }* ^1 ^, P9 f
d. ???
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50. Drag and Drop – Port Priorities
% f6 Y: }, p: d" J( F7 K6 I4 R4 sPort Cost' E0 C, r. E, _" U) o, |8 Z
– 8 default is being the interface value
6 V; z o* Q& I# @– range 1 – 200k (200,000)/ ]$ }. [2 v! f% T: [- l: r
Switch Port Priority
$ W( H/ W9 k4 h' Y# d, p- `. q0 U– default value is 1288 Z. A6 ?" B, X! N- G
– multiple of 166 L H+ L/ A4 g/ E F% \
Switch Priority
3 h0 ^1 Q+ X0 M6 y7 `' x– lower the better
5 E; _% |4 x7 g( E- P4 s8 G. }– multiple of 4096
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发表于 2017-5-16 13:17:46
