CCNA " R5 q7 V3 k. Y' [3 }% o
1.Which of the following types of packets will be allowed entry when a serial interface’s inbound access list has been configured to prohibit entry for TCP and UDP ports 21, 23 and 25? (Select three options.) ; @5 Q P; j* e* X4 G& |
A. SMTP 8 F+ T9 y8 r% N
B. STP
- O- Y5 [- e# | c3 p. m. EC. FTP / M. ^' _, K% b- J* W" y5 A! \
D. Telnet ( u, G3 \. ^, c6 D9 }6 @
E. HTTP ( _6 g! }' X; n( P/ D$ y5 L2 F8 B4 I
F. POP3
4 ?& b( q, U, e$ y: P( ^* o% R2.One of the trainees assigned to you want to know which services use TCP. What can you tell him? (Select three options.)
P) N- u" M D4 EA. DHCP ! H5 g u* ^' W8 ~. t1 T
B. SMTP 8 @/ K" `1 @4 N
C. SNMP
- d( o/ G: _# l- ]D. FTP ( Y$ h \% n" [8 R
E. HTTP
1 C$ i+ n4 O# ?$ SF. TFTP
" G, h4 M; w$ b% Z3 S; y! K( j" [3.Which of the following network masks would you use to reduce any wastage of IP addresses in point-to- point WAN links on a network that supports VLSM?
2 O0 g# o: |: p; }A. /38
& X N3 U0 M% }. ] SB. /30
" \" Q0 _. I3 W" J$ b4 C3 SC. /27
3 W) _5 s9 }+ U$ [D. /23 * K' I* U# R* r. F/ u
E. /18 5 w5 t% n7 O8 h* H# M
4.How would you configure a router to avoid situations such as split horizon issues hampering routing updates on a Frame Relay network? (www．Examw.com)
. d& d& a4 C) X) b- D2 S6 b& J6 ]) o- @. tA. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the subinterface. A1 k7 Y4 q* ~( z& ~# e
B. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.
0 D, Z- a8 p. x+ cC. Configure one sub-interface to disperse into multiple PVC connections to multiple remote router interfaces.
% g0 u, E4 y+ b+ nD. Configure as many as possible sub-interfaces on the same subnet.
9 A1 p! A7 n# d8 b5.With regard to ISDN, which of the following are true? (Choose all that apply.)
- i& K2 r- M2 M Y0 {3 `7 n6 o eA. Legacy DDR can use port information to define interesting traffic.
* J$ A2 t. @# B( \2 n; M6 {' t3 AB. Legacy DDR can configure multiple dialer configurations on the same interface. " G; K2 t. y) X; N5 r, W" Q- v
C. Legacy DDR can use ACLs to define interesting traffic.
: I. K8 |6 Z$ ?# \' v5 U# \7 qD. HDLC or PPP can be used to encapsulate ISDN D channel information. ' O8 Z/ v0 U$ Z4 q
E. The BRI interfaces on ISDN routers with dialer profiles configured cannot belong to multiple dialer pools.
' Q: ]1 G) f" T8 e/ e) rF. Dialer profiles cannot use ACLs to define interesting traffic. |
发表于 2012-8-3 19:18:10
