Đang tải... (xem toàn văn)
Quản trị mạng
Dao Xuan Hung - Take Exam Exam questions 1 . When would you use the “dialer isdn speed 64” command? It is not a valid command When the ISDN line speed is 64 Kbps When the ISDN line speed is 64 Mbps When using robbed-bit signaling 2 . What is a function of the “isdn incoming-voice modem” command? It allows ISDN modem voice calls Allows voice calls to use an ISDN BRI interface It turns on the ISDN modems in an access server It enables switching of analog calls to internal modems 3 . Which is the correct syntax of the “dialer map” command? A B C D 4 . Look at the following partial output of the “show run” command: interface BRI0 description Connected to ntt 81019998887654 ip address 10.12.15.5 255.255.255.0 encapsulation ppp dialer idle-timeout 30 dialer load-threshold 40 either dialer map ip 10.12.15.8 name RTB 81019998888901 dialer map ip 10.12.15.9 name RTC 81019998881234 dialer map ip 10.12.15.4 name RTD 81019998881122 dialer-group l ppp authentication pap ppp multilink Which statement is true about the type of dial-on demand routing (DDR) being implemented using BRI0? By configuring legacy DDR on interface BRI0, calls made to all three sites will use the same communication parameters. By configuring BRI0 as a member of a dial-group 1, communications parameters assigned to the group will override those configured on the interface. Calls made using BRI0 will attempt to use the authentication configured for the dial rotary, and if unsuccessful, will use pap authentication. The dialer profile communication parameters will override those configured directly on interface BRI0. 5 . Which command allows you to configure a physical interface to call multiple different remote locations based on the destination IP address? dialer map dialer-group dialer string dialer interfaces 6 . What do you need to do when configuring a rotary group for outgoing calls? Make sure the serial interfaces are set up with HDLC Make sure that you have more locations than available interfaces Configure dialer maps on the dialer group Configure dialer strings on the dialer interface 7 . What command would you use to apply a rotary group to an interface? access-group dialer-apply dialer rotary-group dialer group 8 . Which three of the following router IOS commands would you use first to define "interesting" traffic using dial-on-demand routing (DDR)? A B C D E F 9 . What command should you use if the same traffic that is interesting for making the call is the only traffic to be sent on the link? dialer-group access-list access-group dialer-list 10 . Which command would you use to block routing broadcasts on an interface? dialer-list no routing passive-interface redistribute route 11 . What type of interface is created in the same fashion as a loopback interface? map interface string interface dialer interface group interface 12 . What command would you use to enable dial-on-demand routing (DDR) on any asynchronous interface? backup interface dialer dynamic routing dialer in-band dialer enable 13 . Which feature will cache routes learned by dynamic routing protocols, enabling their use over DDR connections? Route redistribution Dynamic static routes Snapshot routing DDR route maps Passive interfaces 14 . A dialer pool is: a group of logical interfaces a group of physical interfaces a group of phone numbers a group of map classes 15 . Use the “dialer map” command at which prompt? A B C D 16 . What are the four Dialer Profile Elements? Dialer interface Dialer map class Capabilities Database Dialer pool Physical interfaces 17 . What three profiles must be configured in order to establish a call? System Profile LAN Profile Internal Profile A User Profile Standard Profile 18 . The simplest way to associate a phone number with an interface is to use which command? dialer map dialer number dialer-list dialer string 19 . What command will apply a single interface configuration to multiple interfaces? dialer rotary-group dialer group dialer group-rotary dialer rotary group 20 . What command would you use if you wanted to enable snapshot on a router? A B C D 21 . Examine the configuration statements. What will happen when interesting traffic destined to the network 172.16.1.0 is seen by RouterA? The packets destined for the 172.16.1.0 network will be dropped. A DDR call will be placed to router RouterB and the packets routed to 10.1.1.1. A DDR call will be placed first to router RouterB, and if it is busy,then to RouterC and RouterD. The packets destined for the 172.16.1.0 network will be sent to the 22 . What are the four elements used by a dialer profile and associated with a dialer interface? dialer string dialer interface dialer pool dialer group map class (optional) Physical interfaces that make up the pool 23 . Which statement is true regarding uninteresting traffic being carried over a DDR link? Uninteresting traffic will keep DDR call established, even if no more interesting traffic is being routed over the link. Uninteresting traffic will be routed over an established DDR call, but at a lower priority than interesting traffic. Uninteresting traffic will not be routed over an established DDR call. Uninteresting traffic will be routed over an established DDR call, as long as there is enough interesting traffic to keep the call connected. 24 . An interface may belong to only one dialer pool. True False 25 . The “dialer-group” command will prevent other traffic from crossing a link. True False Showing page 1 of 1 : 1Go! © 2004 HanoiCTT. All rights reserved.