answer b c. a and d contain the os.
4 l7 N& r/ D, f- `+ q3 ]9 G1 q36. which of the following commands will allow youto review the contents of ram?
" l. i8 Q4 E3 Q: `: h. G) r; x8 fa. show configuration
1 I: P1 L5 w. Pb. show protocols : n( Q7 s1 x" F# U
c. show version
: h, T5 ^# v' n5 e7 C7 ~d. show running-config
! M3 q& V3 E! A/ Je. show startup-config # h- Q3 x- Z# u9 `/ h8 v9 Q
answer b c d. a and d allow you to see nvram.
3 L( v) Q* y* Y% B; G37. which of the following will allow you to add, modify, or delete commands in the startup configuration file?
" q/ d. t+ o( I4 i! ?; z% [* N9 aa. show startup-config
! J+ g, |0 G- U" {7 ub. show running-config ! a. \, q9 q- }# F- g) U
c. configure terminal
- t9 h/ X# m& F* ~; r) x9 k Fd. configure memory
, ~2 F: R, D3 [! \. Banswer d. answer c allows you to change items in the running configuration file 0 B) n$ w6 c( y) x2 P
38. which command would be used to restore a configuration file to ram?
/ z: Z. C6 Y* \- f& L________tFtp running-config # ]7 ~! t; j# q, @/ H4 M
a. router#copy 0 p' ~2 E1 x* @8 R' T
b. router>copy
7 G( f" C N# l2 k# W' Y }' \c. router*copy , n; m! _% U. P4 w" u
d. router^copy
7 W% s1 \3 l2 t7 H. K# M* n- x3 R/ M( C1 xanswer a. you must be in privilege mode when executing this, which is why you see the # sign. </p>
' Z. G0 u' }' ?39. which of the following commands will display the running configuration file to a terminal? 8 F4 V5 L. u1 u5 Y7 ?7 \! P
a. show running-config 2 k# }. p7 m; r' M
b. show router-config 9 N8 I/ k5 f0 `. x8 ~- o6 i
c. router#show flash ; h/ Y9 u8 {- B5 E" z5 ^. E9 _
d. router>show version
: D1 A* o& J H* q( E& o2 L* Yanswer a. it can only be shown in privilege mode.
: }6 ^& l+ h3 [& N* z$ W0 ~& R+ N40. if you need to copy the currently executing configuration file into nvram, which command would you use?
" {2 }7 m" q ^6 Ba. router#copy startup-config running-config
, c! q& Q8 R3 S5 J: j' \# m0 Wb. router#copy startup-config tftp
4 R ?) B' F' Gc. router#copy running-config startup-config
0 ]! B# U* j+ Zd. router>copy startup-config running-config ; M9 y. r! ]6 ], Q) w
answer c. answers abc show that the router is in privilege mode which is necessary to complete this action, but only c shows the correct syntax. v% z7 \+ I1 _. P9 M9 z" B: T! h
41 which of the following commands would not set a password on a CISCO router? 0 h) Z1 m5 d+ N# F: C% U' C$ h+ E
a. router(config)#enable secret ) w( F) w7 ^$ J0 [% B
b. router(config-line)#password test ; B7 |5 C0 G4 _- q- R+ p* S. }& I
c. router(config)#service encryption password
+ ^) D* A! S/ T( ~d. router(config)#enable password , i! L- m- S6 K0 u7 Y
answer c. this command is used to encrypt passwords in configuration files. 3 p' J& h& h6 [( \
42. which of the following would cause a router to boot into the initial configuration dialog after powering has cycled? 0 {. Y, {3 z" z0 ]
a. someone had copied the startup configuration file in a tftp server
# B, F0 E. O; Z9 s& u- bb. the running configuration file was copied to the startup configuration file : I- _0 u0 P B: L
c. it is the first time router has ever been turned on / I3 Z. ^! P& A9 @" y5 ]
d. the write erase command was executed immediately before powering down the router. " t e2 y. b' r; V% t3 F
answer c and d. these two scenarios describe what will happen when the router needs to use nvram to boot if it cannot find the configuration file. 9 _; x2 I8 y9 L9 H; L2 v8 r( H; u
43. what would cause a router to boot from rom? 1 u/ F) G: R/ P* Z
a. 0x3202 " q* S- l8 u# p* z
b. 0x2302
( b# p9 S5 w+ g$ cc. 0x2101 ! J; A. x' t$ @5 r7 S
d. 0x2103
8 b8 F: v: h/ @" D/ m( j' }1 F' ianswer c. a configuration register of 1 or 0 will cause the router to boot from rom.
; B! _2 s8 {- E% U( z0 E44. where does the running config file exist?
% }, X8 n u% O/ G/ S& F* {) Ia. nvram
# f3 J/ X5 D! E+ F, r6 A" ~b. rom
# j2 j! u9 q! d4 |c. ram 5 H' E+ M5 Y3 L2 p; s* r
d. flash ' M3 @. ^# ]# f. `5 X Y
answer c. this file is erased if the router is reloaded or rebooted.
* h# e( j2 G e45. how do you back up a router?
4 ~% a4 P. c _: b; a" oa. router#copy running-config startup-configuration ( Y6 V* J# ]2 o! }+ x( S' V2 M
b. router(config)#copy tftp flash & P% n3 g# j4 b2 A S6 r' J: B# s
c. router#copy flash tftp 9 J" ]) _! M$ Z9 I( o: g1 Z
d. router#copy flash nvram 1 q s5 }% i! j1 q
answer c. you can copy the file to a tftp server or other storage device. 3 U* d+ w8 F% x
46. which of the following is not valid? * G6 ~9 J5 `* t
a. router>show version + Q& g+ C" F& Y, h8 Z
b. router#show running-config
" {) I4 S! f: F" R+ Pc. router#show startup-config
# g( R4 s; E5 b8 y6 N9 V+ W% gd. router#show ram
% _- e2 ], m$ j- F" F1 i: ranswer d. ! z+ z. [. H* x8 | c3 T5 A$ m
47. which of the following are basic router functions?
% U6 w: s' C/ w3 s1 S a t' M/ da. packet switching 5 G# d# B4 h! j# J* ^( \
b. packet filtering " ] I d( x7 |+ V% r9 _
c. path determination
9 X9 U& `! W* q& W }$ t- @2 jd. rapid convergence
+ Q1 @& i: N( P2 l& B* W5 Manswer a and c. packets get switched once they are determined by the router where to go.
6 j, _( r1 o# E! n' d* E48. which of the following is not an interior routing protocol?
* X! ~: z6 a' p$ f0 va. rip ; u/ o0 b" [. R/ P7 ?& i- ]8 N
b. igrp " E) b2 `$ p' \) l i# M9 u
c. ospf `) Q0 n$ t. p
d. bgp 6 a6 N- r7 u+ e* C
answer d. bgp is an exterior routing protocol designed to communicate between autonomous systems. 8 M' Q* s, z. y7 \% g; s! B6 C7 b7 a5 ~
49. which of the following routing protocols communicate router information by sending the state of it s links to all routers in it s domain?
- j+ g, G% H$ \: Fa. bgp
$ o( v" R+ j/ l" rb. rip
) G/ j) F, q B% Pc. igrp 2 D5 e6 i( f v6 [: d" z2 S
d. ospf 0 W; P; T& \# K2 n+ x4 z0 E# U# e
answer d. this is a "link state" routing protocol. rip and igrp are distance vector, and bgp communicates reachability between domains. 6 [8 \" Z. O/ R# ^ J
50. what is a problem caused by distance vector routing protocols?
' I: ^" Z" N3 V( ua. split horizon 0 R9 {0 B0 ?! P
b. route poison 0 o5 p# q) a0 g4 I9 Z( D
c. counting to infinity . S4 S8 r$ |7 s$ u
d. max hop count $ h7 v- _ Q2 q; H, M
e. hold down timers
' h* w h- Y4 ^( ~! hanswer c. answers abde are counter measures to the counting to infinity problem caused by distance vector protocols.
5 M) v/ \: C e& D5 v2 a, a+ [51. what router command will display the routing protocol settings configured on a router?
) a" v1 s# @: k/ x9 z! la. show protocol
( U$ U- B- J& a& c; U, `b. show routing protocol $ n; \' }8 m" D( ]- {
c.show ip protocol
+ r" L* {! @. w! V2 ed. show running-config 7 \! d9 g% w) D
answer c. this also displays timers, neighbors, and next update info. 2 V6 N R4 a) V5 V( o$ b
52. what helps mitigate the problems with link state protocols? choose 2
% S# a3 [, k. W$ ]! B$ j) I* ca. minimize router resource usage.
/ A' k* n9 j/ A! o- K6 tb. coordinate updates
% r1 d5 F1 g {" N2 z. E' Sc. minimum hop counts
i ^8 z) t8 z( D# ^5 u: Fd. distance vectoring
0 ^ R$ L% z- v! Y1 F$ K2 A* \7 G5 Banswer a b. 4 ]# {4 y( ]; |
53. which router commands will enable rip for 176.18.0.0? choose 2 5 ?& B4 U8 N! B& ~
a. router rip
6 i# R, O% R9 R- G$ b0 m8 A7 bb. network 176.18.0.0
4 k& c1 [+ Q5 x$ q- ec. network rip
, P/ Z% G- M2 Wd. network rip 176.18.0.0 1 Y. P, ^5 b' K% H3 O
answer a b. router rip enables rip. answer b enable the router to advertise to other routers that it is available. you must be in the global configuration prompt.
0 {/ U% M( Q% y2 f54. which of the following is a disadvantage with the link state protocol? choose 3
/ O; l M/ {8 Ba. hold down counters 4 o* A5 R! Y( f
b. unsynchronized updates
4 j% B% r5 @% @& h( L! ~; }' q4 nc. high network bandwidth usage
. y0 _9 e; h& T! j6 e0 Q% }d. high router resource usage |
发表于 2012-8-3 19:18:10
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