本帖最后由 yuity 于 2014-2-9 22:21 编辑 l; i1 t9 B0 P. I
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过年前就决定要考,因为本人懒,一拖就拖到过年后。 后来证明这是错误的决定,我的年假都在和多区域ospf纠结, 脑子也打了好几个结。没能继续CCNA的满分,真的有些遗憾.
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1.新题 先说新题吧 只遇到一题新题,去年12.26有人提过,关于high availability (HA) $ |) e* ?% G" v* n; V
题目大意是: 在实施high availability时,有哪些项目需要注意?(五选二) 详细内容忘了,每个选项的前缀大约是: (A)redundancy,... (B)process,... (C)staff,... (D)plan,... (E)tools,... == 最后我选redundancy与plan 再比对成绩单,HA这一项我拿100% 所以答案应该就是redundancy与plan开头的选项
5 J/ t) f" R+ y5 d8 d下面这篇文章应该可以作为验证,里头都藏了关键字 . . ImplementHigh Availability, given a network design and a set of requirements 6 }% V4 R, O$ ^; C
Determine network resources needed for implementing High Availability on a network Create a High Availability implementation plan Create a High Availability verification plan Implement first hop redundancy protocols Implement switch supervisor redundancy Verify High Availability solution was implemented properly using show and debug commands Document results of High Availability implementation and verification Q; E+ F/ ?' G6 x2 A
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2.争议题 再来是大家都知道的争议题 6 q1 C; l4 p) Q% |
7 e- M6 @; I2 R6 e" i% JQUESTION72 Referto the exhibit.
& u9 B; I2 Y/ G8 F% `3 \# z* DWhatdoes the command channel-group 1 mode desirable do? A.enables LACP unconditionally B.enables PAgP only if a PAgP device is detected C.enables PAgP unconditionally D.enables EtherChannel only E.enables LACP only if an LACP device is detected CorrectAnswer: C 2 u& i. ~' v( X& U! W4 a! L
答案是C
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QUESTION109 争议题 Whichtwo DTP modes permit trunking between directly connected switches?(Choose two.) A.dynamic desirable (VTP domain A) to dynamic desirable (VTP domain A) B.dynamic desirable (VTP domain A) to dynamic desirable (VTP domain B) C.dynamic auto (VTP domain A) to dynamic auto (VTP domain A) D.dynamic auto (VTP domain A) to dynamic auto (VTP domain B) E.dynamic auto (VTP domain A) to nonegotiate (VTP domain A) F.nonegotiate (VTP domain A) to nonegotiate (VTP domain B) CorrectAnswer: AF
' ~6 V, p" @ M7 z* z# n考试为了拿分 , K' r6 s& G; P: P$ d7 k9 r7 K
选AF肯定是对的
A% `( `, G/ AQUESTION135 Bothhost stations are part of the same subnet but are in different VLANs.On the basis of the information presentedin the exhibit, which statement is true about an attempt to ping fromhost to host?
' X9 \0 V3 W: D; Q% U; y6 CA.A trunk port will need to be configured on the link between Sw_A andSw_B for the ping command to be successful.
) X! t" _) D1 v0 t6 {B.The two different hosts will need to be in the same VLAN in order forthe ping command to be successful.. x. W( c2 U% p+ N( v/ g! u* \1 w( z
C.A Layer 3 device is needed for the ping command to be successful.+ Y/ R6 D, ]& I( F
D.The ping command will be successful without any further configurationchanges.
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我没遇到,但是之前查过资料 当年有人答B有人回答C或D,我用实机2960跑的确是D 不过翻了翻最近的战报,各位请选A A trunk port will need to be configured on the link between Sw_A and Sw_B for the ping command to be successful. 得分最重要,知识自己懂就好 * n* t% @0 V$ }9 }. X
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3.实验题
) J9 o1 _$ w- P' k0 k) K- e! p3 A这一阵子813实验只考三宝+HSRP 我遇到的顺序是 MLS+eigrp AAA HSRP LACP
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& t: a! ]' a: c" S2 L7 F4 v这题有陷阱,IP有变化,三层交换机连接两台PC的port改成g0/15g0/16 eigrp AS number变成65010
9 M: ~! m) `1 }; g: \# m5 F指令全部key完,show ip route路由表ok 三层交换机可以ping到远端server,结果两台PCping不出去 show run看了半天,坑爹了 我把IP直接Key在g0/15 g0/16上,形成一种诡异的组态:
) @: j( D" I+ w) i, F- x+ vg0/15 ip address 192.168.3.33 255.255.255.224 switchport mode access switchport access vlan 2 $ p: o3 [3 F, D+ g! S9 W
g0/16 ip address 192.168.3.65 255.255.255.224 switchport mode access switchport access vlan 3 ; [3 y0 C j8 Z0 B
玩过模拟器或实机都知道, 三层交换机没有no switchport、二层端口为Access是不能打IP的 但是考试就是可以key上去,顺到让人忘了这是台三层交换机 当下赶紧改成int vlan 2 int vlan 3 4 E/ U9 ^" z$ k% Q
这种诡异的组态在LACP还会再出现
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没有太大的变化,就是之前的口诀 enable11-15 90 100 200-250 greater than 6
, L0 M& R( \; g4 n不过大家不要背答案,这六题我都有仔细看过 之前战报有人说过,下面这题,交换机变成了DSW2(题库里是DSW1)
* A/ S) U; \3 i, ~- L9 K9 @( d" ^4 sQuestion4: IfG1/0/1 on DSW1 is shutdown, what will be the current priority valueof the Vlan105′s groupon DSW1? A.95 B.100 C.150 D.200
2 D5 T9 V' F: P+ k考试中问DSW2 down了之后,优先值多少,就是100-10= 90 ) [$ x: S. [: A/ u% @
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最后是LACP 这题指令爆多,而且出现了前人提过的状况
& }9 S5 q, @% @' \/ p- T这还不算什么,我把指令全部配完 SwitchB可以ping到路由器的192.168.1.1 最后在SwitchA show run检查时,瞄到一个诡异组态 0 z9 a( T& O c& g( Y
SwitchA interfacefa0/1 switchport access vlan 98 switchport trunk native vlan 99 switchport mode trunk 当时没有多想,拿到成绩单一看978 vlan solution 94%,想不起来哪里错了 + g) n1 S0 O7 T! y8 p0 s- t. V
回家后才想到 switchport access vlan 98 这行.虽然不影响连通性,应该也要no掉才对 各位小心 注意SwitchA连向RouterA的接口 也许我就是这样被扣了22分 + f$ D2 Y9 ]. t, T6 m, T
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5)其他
3 z3 r j' x9 @6 |拖图题只遇到二题,都是vlan solution的考题 选择除新题一题外全复盖, 3 }. i8 T$ Q/ p, E
说实在,813不難 题库认真念,上面提到的几个点注意一下 813应该可以稳稳拿下
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接下准备902
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