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本帖最后由 爱恨交加 于 2016-12-9 11:01 编辑 - Q& w; _9 r2 m) X
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PASS截图我就不放了，现做以下分享6 u; |8 _- g! d, _/ y& B# h9 F
继5月26日400-101fail之后的又一次挑战，今天终于pass了，面对着思科的各种变题，本以为我不在持续继续参加考试；上次本以为笔试fail之后就不在考思科了，可作为一名刚刚毕业的专业生，不得不考一个还算可以的证书；现在工作在某个不知名小公司，每天和PC打交道，确实厌倦了这种生活，别的的就不说了， 希望一下题目对大家有帮助。4 s% P1 `# g6 [) m9 e% X$ @, I
特别感谢在463904693群内得到大家的帮助，虽然有部分新题，但是我还是由衷的感谢，有兴趣的话大家也可以进去。) k1 L V0 G) [8 |# [3 I' |1 l
拖图有个这样的，我按前边编号写的；
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$ f# B$ P4 y3 O9 h1、What are the two BFD modes?4 T/ d. }# {! o- ~4 G
active0 l# x' j$ b6 W# w7 U9 T5 t5 k
asynchronous0 \2 ^8 c! g' r4 @% }4 Z
passive2 K6 d! a. X( t6 M
established' O9 L# C! h4 Y* s& v5 @8 u
demand! F2 f$ Q' o7 R! _& m
synchronous
$ e6 D/ ?3 G& R9 A4 ~6 `& g: T% ~2、In a simple MPLS L3VPN, which two tasks are performed by the PE router?
9 m' {8 l9 k% W& s, NIt establishes pseudo wires with other PEs.6 F5 m" b: O' I; E, a
It exchanges VPNv4 and VPNv6 routes with CE Devices." z) H g& Z+ w. N, j
It assigns labels to routes in individual VPNs.
& z7 j% X9 }$ k* iIt forwards labeled packets to CE devices.
9 E2 Y+ c) F8 \- Z/ q9 EIt exchanges VPNv4 or VPNv6 route with other PE routers.
5 G3 B) x& B* e) L3、Which two statements about PPP PAP are true?(Choose two)0 L5 _! y# |3 g9 N
It requires two-way authentication.
: A% D" _- b5 L/ c" f# i vIt can protect against playback attacks.) Y* h" ^& l, E0 q4 f* a
It is supported only on synchronous interfaces.
( c# s0 h' ?7 x3 O) D7 L- XIt is vulnerable to trial-and error attacks.4 O, |) U( d3 ^- Z1 l6 Z8 u* s
Login attempts are controlled by the remote node.- N" Q1 n% A" k
4、For what reason might you choose to use an SVTI interface instead of a crypto map on a tunnel interface?: a& O1 \! Y9 k( n
SVTIs support dynamic routing protocols without GRE headers.# l- [# j+ g b8 d- w
SVTIs can support multiple IPSec SAs.: I2 j# L3 @( C' s3 b. a
SVTIs can carry non-IP traffic.
2 _$ U c' N- zSVTIs support CEF-switched traffic shaping.
1 Q" f+ ]) X r9 {4 o- V7 l5、Which cache aggregation scheme is supported by NetFlow ToS-based router aggregation?% \& S# P* `. j2 K, y
prefix-port& y% W5 J9 P" v" r5 C; i) z& H
AS
' `' v& ]' R) Z6 p A3 a- d3 bprotocol port9 A% O7 m. \1 J7 }
destination prefix! x& i8 [5 j: b7 p2 n* u* r
6、What are the two variants of NTPv4? (Choose two.)
* x' p" K/ ?6 }client/server5 s1 X* |8 ]+ k% q) C
broadcast
! k- m( p( k( C! k# G$ E, l' o! ~ f, jmulticast , q0 D8 _ a9 {! Y
asymmetric , U8 M4 \9 l2 r4 ], C
unicast
! n( Z9 k8 I e, l y: k8 r7、Which feature can you implement to reduce global synchronization?
& U) [/ z/ u: dWRED0 k4 @$ c- m# b y- J
marking' S& ?: Q M3 W* U" l) @
policing
/ n6 y# P/ \) q1 A h4 S. z8 zNBAR
* W& [$ c) P: W% X1 L, b& T" g8、What is the default behavior for a manual summary route when a component route of the summary disappears?- i! m# m% ?9 C# S# o
Regardless of the metric if the componnent route,the metric of the summary is unchanged in order to keep stability.
0 W% o0 A" C5 Q% SIf the component route previously had the best composite metric ,the same summary metric is retained for stability.
8 a6 n( V- p% d% F3 E" JIf the component route previously had the best composite metric ,the metric of the summary changes to the next-best composite metric.
# l w2 i) [) c' ~, Y1 p4 qif the component route previously did not have the best composite metric,the summary metric is updated,and updates are sent to peers.
0 Y7 q) q( C" O$ ], l2 Y9、Which two statements about the command distance bgp 90 60 120 are true? (Choose two.)
6 {5 A/ X- F) w* V# Y- ~Implementing the command is a Cisco best practice.
, \1 t, ~4 H0 N+ [The external distance it sets is preferred over the internal distance.
! { x/ y+ Y2 T" r% I+ g. n9 g2 \6 ZThe internal distance it sets is preferred over the external distance.5 x0 f+ I; S Z- c
The local distance it sets may conflict with the EIGRP administrative distance.
1 _& x [3 W* ~' L7 V: e1 |The internal distance it sets may conflict with the EIGRP administrative distance.
/ a. E2 ?' U. u/ m/ kThe local distance it sets may conflict with the RIP administrative distance.
( a! W- D6 m6 k% {# A; ~10、Which three elements compose a network entity title? (Choose three.)) }6 M4 s, X6 g; c0 `
area ID9 K8 \2 i' S t/ u5 j8 b9 e+ m
domain ID4 V; w7 j& P( n6 ?+ y* V
system ID
, q8 H8 p! w" c) a. X( [NSAP selector- L" k- `& J; f# l6 j/ Q
MAC address
/ O2 ~( [% |! q3 I2 a+ nIP address# @ ?& @/ s* v
11、Which statement about NAT64 is true?# ]) b: Q( z+ T- @/ B4 E( P- G/ a- d- _
It uses one-to-one mapping between IPv6 addresses and IPv4 addresses.
$ u& H |) N& \+ T' S: J1 dIt requires static address mapping between IPv6 addresses and IPv4 addresses.
$ ~: v& O. j+ ZIt can be used to translate an IPv6 network to another IPv6 network.
" V4 m7 G5 P4 O4 d* yIt can be configured for stateless and stateful translation.
; C7 D0 B( [0 d8 [4 Z12、带图片的选择题
( C* \. A+ n( N: J( ]. ~$ K大概意思就是运行了bgp 65500，nei了LocalSite 其中有三条route-map 10 、15 、30
4 J" F" ~" ^# z8 H2 ] X这题要选AS 65500 和BGP路由
3 i! J: ` G x* ^4 X13、
" W0 Z! Y' V3 z. z4 f+ [3 {: Z这题是给出一张图，是show bfd nei det 1
5 x& s) j. P/ o/ T( v9 d3 c/ QNei的地址是10网段的 LD/RD LD是1 RD是一个很大的数字，状态都是UP ，INT 是 g0/3; h6 |, H+ }* G' U
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3 i) ^+ @* M% ~+ i# I- N这题要选：BGP on RT1 has negotiated …… its peer,$ u2 ]8 e+ n) \, X! \
还有一个选项是：BFD is active for BGP on RT1
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v0 q# Y( [+ N: R$ g* c最后，真心感谢 群内所有人，希望大家都早点PASS！！！2 h' v. v8 ]' I \
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发表于 2016-12-9 10:57:43
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