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发表于 2017-6-3 11:13:41
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MCQ questions SUMMARY – still need Q5 and both SIM details 1 G& K0 C% L( F9 g3 }+ } d
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1- Which command will limit debug output ppp authentication on serial 0/1 and serial 0/2?
( {; _4 J3 h& ^2 s(Limit debug ppp authentication to 2 interfaces)
2 G& `" w7 @5 s9 @; JA- debug condition interface range s0/1 -0/2
- ], z) Q5 h7 a1 k8 S; o" adebug ppp authentication% @7 j: @% ]$ H) n& T# P1 y
B- debug condition interface s0/1 & 0/2& @& J2 f/ F* y$ A9 }0 x
debug ppp authentication7 M7 p% ~, k. S7 {: w e8 J
C- debug int s0/1
) q) I3 F; e Y0 L; r9 f# o2 `debug int 0/2/ f% u5 ?* `. q
debug ppp authentication8 q' s# v! _ m3 X3 Y
D- debug condition interface FIRST0 P, H5 {, c& u& g d
debug condition interface SECOND n& j, Z5 w! I& ?0 N3 @# x/ g
debug ppp authenication1 E$ _; s' @5 g$ A* o0 S3 J, B
3 y* l# Y J( j. E- ]Answer: D? or C4 _& s6 C0 L" ]! [6 ]7 y
Explanation:7 @+ [! l( _* L, {, O
Link:http://www.cisco.com/c/en/us/td/ ... debug/dbfcndtr.html; Q3 x( [/ m Z, Q
) W t6 n' F" x ^" S) I( Z3 h2- What is the MTU’s size in a GRE tunnel? (Max size of GRE tunnel)# c+ Z0 D/ N/ \+ H( l
Answer: 1476 (20 bytes IP + 4 bytes MINIMUM GRE header)5 h0 E" a# R, o; o! x" J6 z, w
2 ?4 B* C' q/ Z! V0 M* f. \
3- How to check MTU of interface using ping? / How can you check the links9 |6 s- @ w/ O# [* \% x5 ]
mtu size with ping command?0 K. `- @. u0 I+ ]" H
A- ping 10.1.1.1 size 1501
6 B# g' X4 t' pB- ping 10.1.1.1 size 1500 df-bit
# G" c. q z: o9 UC- ???2 x* W, d+ q& X5 b3 i/ I$ K1 T
D- ???/ W( S$ ~9 ~, Q9 L5 q$ T
Answer: B (You have to use df-bit option on ping)7 m$ \# p* E4 Q7 r2 n8 \& F) l
9 F+ P5 Q9 t# f- C8 {* d; J4 m4- The tunnel between R1 and R3 is not coming up. Which two statements are true? (choose two) (/ z+ K8 F n( }
Topology with a GRE tunnel and the outputs provided are show ip int brief and tunnel source and destination)
" l/ p7 o2 Y. J$ b! tA- tunnel source int Eth0/0 is down) v! T9 Z& q6 f
B- no route from R1 to R3 loopback0 (tunnel destination)
6 ^: @# k4 s. y' j) v, OC- ???4 a4 l9 D6 ?$ ~ g
D- ???' Y2 l/ J& S7 f, t, e7 N4 _
answer: AB
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5- R1 and R2 OSPF neighbor. Which two statements are true? (choose two); M: R. D% u4 J; d& M; U/ l5 M
(Output from show ip ospf neighbours on 2 routers, one of them shows FULL/DR, the. Z; |- m" _2 v" @
other FULL/-, you need to know how were they configured and will they exchange routes)
; K+ n! M' Q' z; B0 `0 NA- they are not neighs (wrong)
" K! ~9 x9 I3 V9 v7 QB- R1(non-DR) will not update its routes to R2
2 C6 P2 P. z5 G a5 Q! t; z/ ]C- ???
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E- ???9 a. z; ]& D1 h. w4 S
Answer: B e ???
/ M0 R L* C* B; s' ?& D1 x6 n& f' f. ?Note:! E* ]) l0 z2 c/ a
@Tamelir: This is the case when router has configured network that selects DR – broadcast,
- a3 k5 w4 A+ i2 i+ Z' n" GNBMA, while the other’s network is p2p, p2mp or p2mp p2mp-nb WITH PRIORITY LARGER THAN THE FIRST ROUTER.% ]0 y2 K) U: w* Q6 X
The routers WON’T EXCHANGE routes.
, `$ r7 h1 y K, F@Hellboy: It’s a “select 2 out of 5” type of question and i selected that the router that( ]& s9 M0 D" r) N% q/ Y3 @
shows as FULL/- is point to point and that the other router won’t send routing updates.8 _3 K+ @, ?: f1 X; k8 Y4 g
" Y8 w7 e& ~7 L+ W" l1 Z6- Two routers are connected through PPP connection. After the PPP was established
6 b9 X5 K8 n0 H# T, W; W# Gthe admin put OSPF running above it. The OSPF formed adjacency but after soon the7 K w0 y( t E \+ S
adjacency dropped. What is the reason?
# W3 m7 V* _! M F(The cause of OSPF forming an adjacency over a GRE tunnel and dropping immediately)
' A {6 q0 m7 V3 d: o% qA- MTU mismatch+ m0 C+ J% ~. h& A' v7 I
B- ospf routes contains the route to tunnel destination ( right)0 C- D2 f y3 V; y4 ]3 P2 B
C-Gre tunnel destination is not reachable through tunnel
6 l" R" `0 W! }4 K" w>>> if this statement removes “not” then this would probably be the answer,
8 Z/ c7 F) Z. b% ebecause the tunnel destination can not be through the tunnel itself,/ O. ]# I; K" C F
otherwise would cause Recursive Routing.
' x6 V, T) ]4 A0 z5 b$ \0 zD-Gre tunnel ip address must be covered by network under “router ospf 1”
# u: S5 c. d' X4 y" Q9 d1 j>>> The Tunnel IP subnet needs to be added to the routing process,3 H! ]% v$ g8 q! Q1 b( U
add network under router ospf x >>> So this one should be the right answer.8 X+ s8 \0 g- v. j& @
Answer: D ???* O9 k! G) M+ V# g! V
someone suggested the following answer but it is not matching the uptions above:- j. {0 _) L) _3 f7 |
OSPF is configured on the tunnel , and the issue is bcoz the tunnel destination routes thru the tunnel
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R9 n7 {+ }# X* m- m9 bTickets
$ Z- H4 |) F7 p2 x( k# CTicket – R1 – IP NAT
6 V3 {# V6 \' O# i, b7 q5 gThis ticket is different, the network 10.2.0.0 is in the NAT ACL list.
. Q) D) Y4 _! R: R" hThe fault is in router 1 and the cause is the serial that connects to the inside network. r; \2 H B/ V$ } G
is configured with “NAT outside”.8 G) x6 S' {+ \ b7 l5 T! _5 S
To correct this fault is to configure “NAT inside”; ?2 Q6 n0 ~' C
; u9 L2 ?, Y* g' f$ DTicket 11 – OSPF to EIGRP: K7 u% O- q% `
OSPF->EIGRP under router eigrp 10 had to change to ospf_to_eigrp |
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