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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
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9 N5 K+ M6 R$ s3 b4 f, l$ Y+ Y1- Which command will limit debug output ppp authentication on serial 0/1 and serial 0/2?% ]% @, J8 I* M" C% ?
(Limit debug ppp authentication to 2 interfaces)
* }: F: j1 ]5 W2 J0 ^3 zA- debug condition interface range s0/1 -0/2# S, r4 U/ H$ \
debug ppp authentication
/ D- r5 a7 A5 h! pB- debug condition interface s0/1 & 0/2
/ w1 q; h1 A2 O+ ^; Vdebug ppp authentication
& p" c' ~8 x' t n# lC- debug int s0/1( r% o; x% ~) \% X! z. {5 |
debug int 0/2
$ @1 B/ q$ r) ^+ h4 S7 w$ Q+ tdebug ppp authentication9 M K* P! O8 F+ q. U7 Z- C
D- debug condition interface FIRST
! r' ]& S* Y9 @5 Zdebug condition interface SECOND) e' P; Z: H; d2 y% a' l
debug ppp authenication
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+ U( _% u, ]" _9 iAnswer: D? or C
5 p2 z8 f5 T% X1 bExplanation:
8 Y$ A I+ Y8 p% L6 U8 qLink:http://www.cisco.com/c/en/us/td/ ... debug/dbfcndtr.html% S& P% s# I& E& v
: p J/ M( _0 c9 a0 q3 E2- What is the MTU’s size in a GRE tunnel? (Max size of GRE tunnel)
* b, D( t0 q& d) o7 I, V5 e7 Z ]Answer: 1476 (20 bytes IP + 4 bytes MINIMUM GRE header): f) M- C" R3 b4 h ~
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3- How to check MTU of interface using ping? / How can you check the links. P" \" b5 g7 V4 \( k( B* M
mtu size with ping command?
4 Z3 w9 c, c! q7 D: ~4 ~4 }# u. iA- ping 10.1.1.1 size 15010 d2 g* M4 |, A' J' F
B- ping 10.1.1.1 size 1500 df-bit
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Answer: B (You have to use df-bit option on ping)
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4- The tunnel between R1 and R3 is not coming up. Which two statements are true? (choose two) (
' b8 ^4 }0 d) ~. |8 e4 zTopology with a GRE tunnel and the outputs provided are show ip int brief and tunnel source and destination); w1 Q. n) V; v9 o+ O' L- |5 V
A- tunnel source int Eth0/0 is down+ b I/ ], D6 W8 Z( {. }- O
B- no route from R1 to R3 loopback0 (tunnel destination)5 T& |6 c" _9 X4 i. N
C- ???/ j6 h3 v. D$ _0 U0 h1 L2 e
D- ???
3 B6 n) i4 Z' Manswer: AB
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5- R1 and R2 OSPF neighbor. Which two statements are true? (choose two)
& X `. J, O$ W9 Z" D, T(Output from show ip ospf neighbours on 2 routers, one of them shows FULL/DR, the$ O& D5 j" J, [. z( x
other FULL/-, you need to know how were they configured and will they exchange routes)
9 Y6 X! n8 b! a' sA- they are not neighs (wrong)7 W7 i2 a* [5 y9 C6 Q/ z
B- R1(non-DR) will not update its routes to R2
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E- ???
$ N( _4 r( s( ]0 TAnswer: B e ???& R9 ?/ Z0 |2 c F1 T7 |
Note:
8 q. r. F0 y ~/ L@Tamelir: This is the case when router has configured network that selects DR – broadcast,+ ^" G+ E% s/ ?0 ?9 _& |
NBMA, while the other’s network is p2p, p2mp or p2mp p2mp-nb WITH PRIORITY LARGER THAN THE FIRST ROUTER.7 W5 o3 k8 P `5 Z* |5 p9 c
The routers WON’T EXCHANGE routes.1 y6 V0 L2 O- }: s
@Hellboy: It’s a “select 2 out of 5” type of question and i selected that the router that
( p9 Y- [- e T4 S- Hshows as FULL/- is point to point and that the other router won’t send routing updates.1 _. }& S# q$ I$ R% M
) \1 h4 \ }* L5 o! G8 L6- Two routers are connected through PPP connection. After the PPP was established1 \# W1 I" n: E* l" n
the admin put OSPF running above it. The OSPF formed adjacency but after soon the. ~% I, M' f5 X3 v" @: Q: T
adjacency dropped. What is the reason?* @+ g& l: k) _ F0 [0 m g) }
(The cause of OSPF forming an adjacency over a GRE tunnel and dropping immediately)
' l/ J7 f. ]2 Y j3 UA- MTU mismatch
# F# K- g/ f; c. Z, RB- ospf routes contains the route to tunnel destination ( right)! Y# O& c: k9 Y, y' r
C-Gre tunnel destination is not reachable through tunnel% K( |- N; y' Z
>>> if this statement removes “not” then this would probably be the answer,' g+ J9 Y L5 h, b6 S, t/ j
because the tunnel destination can not be through the tunnel itself, c4 q% J, @$ U/ q
otherwise would cause Recursive Routing.
, k+ ^3 {+ }& t- C, dD-Gre tunnel ip address must be covered by network under “router ospf 1”
% J% N9 s# n, R+ b& \>>> The Tunnel IP subnet needs to be added to the routing process,
! X& V l3 M P# Y9 K+ aadd network under router ospf x >>> So this one should be the right answer.
0 O* D0 H ^4 Y$ @( m6 @1 U/ U0 c @Answer: D ???
$ D+ N! I, o* d1 xsomeone suggested the following answer but it is not matching the uptions above:
# H1 Q' S" _* c' w# ROSPF is configured on the tunnel , and the issue is bcoz the tunnel destination routes thru the tunnel
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Tickets
. D1 d* _/ F' H7 gTicket – R1 – IP NAT5 U4 c8 G& w5 M# |7 Y; e
This ticket is different, the network 10.2.0.0 is in the NAT ACL list.
" D$ D4 p5 J9 H- f( w- S' j! d1 |The fault is in router 1 and the cause is the serial that connects to the inside network+ `& [6 k2 ]! f& A% L6 F% f
is configured with “NAT outside”.0 {5 A3 t- y' T( W
To correct this fault is to configure “NAT inside”
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Ticket 11 – OSPF to EIGRP
# J F( R1 J9 O$ k `' AOSPF->EIGRP under router eigrp 10 had to change to ospf_to_eigrp |
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