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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 ( F6 L! Z M, U
4 q: q6 c% I" Z4 ?7 |( T- Y( X( l1- Which command will limit debug output ppp authentication on serial 0/1 and serial 0/2?4 k8 q3 A1 y/ Y( z
(Limit debug ppp authentication to 2 interfaces)
% |: J7 |3 l! }4 W: Z/ vA- debug condition interface range s0/1 -0/2
& m: F4 F* w& o- b0 rdebug ppp authentication
2 A, u/ O8 c! b1 jB- debug condition interface s0/1 & 0/2( Y. s/ S5 ?" ]- u
debug ppp authentication! p4 p$ U/ P+ K) e z, j
C- debug int s0/1
* G! ?6 a r; a+ t, c4 U C, Idebug int 0/2
6 a$ Z+ e2 o5 Ndebug ppp authentication5 `! q& G0 n5 U# e- W# T3 y3 T
D- debug condition interface FIRST0 z$ A+ m7 p* m8 ^/ m! N+ [2 _
debug condition interface SECOND
1 U" j; @$ C" G7 Q& Cdebug ppp authenication
9 {" q* K2 d" g; G. q* c4 {2 P0 b p F) j' \8 p$ K: X$ }
Answer: D? or C
5 m2 b1 G8 |! p1 a- Y. RExplanation:
+ E( Q3 P. j# Y ~Link:http://www.cisco.com/c/en/us/td/ ... debug/dbfcndtr.html3 p$ X# X j6 D+ i7 @
! S; u9 T6 _1 ?, R$ o1 `2- What is the MTU’s size in a GRE tunnel? (Max size of GRE tunnel)
& Q Q9 K: d! w9 Z9 eAnswer: 1476 (20 bytes IP + 4 bytes MINIMUM GRE header)
7 ]8 t! M G8 v1 a
3 [# I, \; Q" d) ^3- How to check MTU of interface using ping? / How can you check the links* I" X ]) h# A, v
mtu size with ping command?
9 D M6 l# q4 U7 ZA- ping 10.1.1.1 size 1501
* z2 f$ f2 ]9 c( e6 k# [) ]! W$ WB- ping 10.1.1.1 size 1500 df-bit3 Y3 X- j2 }6 b, H& L( N
C- ???
2 `. n8 F5 Q6 R/ y' l" gD- ???
$ P% F! \2 i3 R! G& uAnswer: B (You have to use df-bit option on ping)+ m4 r! e; e1 u( ], X. r
T/ `5 ~3 _ t, y" J- m) \
4- The tunnel between R1 and R3 is not coming up. Which two statements are true? (choose two) (% B( M% \5 ^3 _' N( ?8 i+ {6 O
Topology with a GRE tunnel and the outputs provided are show ip int brief and tunnel source and destination)6 Y" J) B% J/ U" u1 t/ x. j
A- tunnel source int Eth0/0 is down% M W) Z" G9 G# P: v4 J! R
B- no route from R1 to R3 loopback0 (tunnel destination): Y7 T- Z( {; f9 h$ Z
C- ???: @/ T% K) q) n9 v2 B
D- ???
* q* P5 x; f% p' }4 tanswer: AB
' D! w" l- f _/ A- Y% P+ q
/ P9 \. w4 u$ R" ]2 c# D \5- R1 and R2 OSPF neighbor. Which two statements are true? (choose two)
. u& C0 E k X8 n(Output from show ip ospf neighbours on 2 routers, one of them shows FULL/DR, the0 ~! I3 M( Y4 L
other FULL/-, you need to know how were they configured and will they exchange routes)
; Z* _; X# x2 Q0 L* _' y+ O" pA- they are not neighs (wrong)# T! M- O3 A q5 z* F
B- R1(non-DR) will not update its routes to R2
/ Q" I: D0 o1 l/ zC- ???) x; P8 V0 v/ p8 r% ~
D- ???
]/ ^4 l: w. d& a8 bE- ???
0 k1 f/ ~! j7 `" I7 c b$ a# oAnswer: B e ???5 V) x% F( \7 I3 n) \
Note:+ `& P9 }" J$ R9 l' }% a5 z1 _
@Tamelir: This is the case when router has configured network that selects DR – broadcast,
; S6 ?6 F' O1 G0 aNBMA, while the other’s network is p2p, p2mp or p2mp p2mp-nb WITH PRIORITY LARGER THAN THE FIRST ROUTER.
8 V( H S" D; v) UThe routers WON’T EXCHANGE routes.
5 ]0 A% w# q o; l6 z@Hellboy: It’s a “select 2 out of 5” type of question and i selected that the router that' I3 _% d: o7 t" G7 i ~9 Y! I$ e3 q
shows as FULL/- is point to point and that the other router won’t send routing updates.& `. |" G. c* f$ d
5 C- p8 J4 A% c9 b( U6- Two routers are connected through PPP connection. After the PPP was established
; j1 {* Q8 \% Z( t0 u0 `the admin put OSPF running above it. The OSPF formed adjacency but after soon the
, ` _- P' F7 ?0 `# ]( Oadjacency dropped. What is the reason?6 R, g* _" I7 e% e8 }& U9 S
(The cause of OSPF forming an adjacency over a GRE tunnel and dropping immediately)8 l& r, \" ]; K& a
A- MTU mismatch
! n$ S. B' c) D! Q; o1 t) c; HB- ospf routes contains the route to tunnel destination ( right)1 p- r i0 u- }
C-Gre tunnel destination is not reachable through tunnel6 @1 |( l+ Q- n7 Z7 t1 b/ @
>>> if this statement removes “not” then this would probably be the answer,' o/ b: X/ ?/ @: V( r7 Z* }( ~
because the tunnel destination can not be through the tunnel itself,
9 Z# j C+ |7 [# lotherwise would cause Recursive Routing.
% [8 u2 \; c+ qD-Gre tunnel ip address must be covered by network under “router ospf 1”5 E3 x5 b8 f4 }# k$ T" n' e( G
>>> The Tunnel IP subnet needs to be added to the routing process,- J$ \7 q8 y6 w: W; i
add network under router ospf x >>> So this one should be the right answer.6 ^+ {; ]) t, D6 R: R
Answer: D ???# z! n3 I3 n) e. D$ H) D y
someone suggested the following answer but it is not matching the uptions above:. W# x, D m2 [% Q8 D0 ]
OSPF is configured on the tunnel , and the issue is bcoz the tunnel destination routes thru the tunnel
* y6 |& v* q3 r9 e1 l9 d8 Y% C$ Y$ |4 r; i
Tickets
$ _) x6 t' ?; ~6 a7 N* M) ?Ticket – R1 – IP NAT# j- y8 N! m, h1 O2 U
This ticket is different, the network 10.2.0.0 is in the NAT ACL list.4 @6 `* C. X6 u8 Q1 ]
The fault is in router 1 and the cause is the serial that connects to the inside network3 }! M; G* l. v }# G9 S
is configured with “NAT outside”.6 I! Y* V* ~% o7 O; {$ L
To correct this fault is to configure “NAT inside”% @" v$ k" h; \ U- Y
( {' ^8 |7 P1 h) l, C2 ETicket 11 – OSPF to EIGRP z1 n* j, ?) o2 U1 W# Y6 N
OSPF->EIGRP under router eigrp 10 had to change to ospf_to_eigrp |
101#
2017-6-3 11:13:41
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