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 Final exam

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Age : 31
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Registration date : 2007-02-22

PostSubject: Final exam   Fri Nov 30, 2007 5:45 pm

Final Exam

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Refer to the exhibit. According to the output from the show interface serial0/0 command, which dial backup method is configured on interface serial0/0?

o load backup X
o PPP callback for DDR
o Dialer Watch
o floating static routes
o Dialer Profiles
o Multilink PPP
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A network administrator is defining an IPSec security policy for the network. Phase one consists of determining the IKE policies between IPSec peers. What factors must the administrator consider when developing the policies in this first phase?

o number and location of the peers X
o routing protocols in use on the peers
o crypto maps in use on the peers
o peer details such as IP addresses, IPSec transform sets and IPSec modes
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. Which three statements are correct regarding the above show frame-relay pvc 110 command output? (Choose three.)


o CIR is measured in bytes per second.
o BECN adaption is configured. X
o The PVC has been active for more than one day. X
o The value of Be is positive.
o The value of Bc depends on time.
o DLCI 110 is associated with a subinterface. X
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
What is sent to the destination router when a Frame Relay switch recognizes congestion?

o a FECN X
o a Bc
o a BECN
o nothing
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Which steps are needed to configure DDR? (Choose three.)

o define interesting traffic X
o assign the dialer map to an interface
o assign the dialer list to an interface X
o define the destination with dialer map X
o define the destination with dialer list
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. All three routers are connected in a hub-and-spoke topology over Frame Relay. Which map statements should be configured on both spoke routers in order to successfully ping each other?


(the last one) X
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Which conditions require the use of the frame-relay interface-dlci command? (Choose two.)

o multipoint subinterfaces that have Inverse ARP enabled X
o multipoint subinterfaces that are configured with static-route maps
o multipoint subinterfaces that are configured as unnumbered
o point-to-point subinterfaces X
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which two are steps in replacing a transform set? (Choose two.)

o Delete the old transform set from the global configuration. X
o Assign the transform set to a dialer map.
o Clear the SA database. X
o Reinitialize the physical interface by bringing it down and then back up.
o Reenter the crypto map command on the interface.
o Issue the show crypto map command to verify the number of encrypted packets.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
When troubleshooting a DSL connection, which command is used to display the VPI/VCI that the DSLAM expects?

o show interface atm
o show dsl interface atm
o debug atm events X
o debug ppp negotiation
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
What is the most popular modulation technique that ADSL uses?

o carrierless amplitude modulation/phase modulation (CAP)
o frequency division multiplexing (FDM)
o quadrature phase shift keying (QPSK)
o discrete multitone modulation (DMT)
o consumer/Mass-Market DMT (G.lite) X
o quadrature amplitude modulation (QAM)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which three Layer 3 protocols are supported by PPP? (Choose three.)

o IP X
o IPX X
o CLNP
o Appletalk X
o NetBEUI
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which algorithm methods provide asymmetric encryption?(Choose two.)

o Secret Key
o DES
o RSA X
o 3DES
o Public Key X
o AES
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which statement is true about the aaa authorization commands 4 default group tacacs+ local command?

o The privilege command is used in conjunction with this command. X
o Users with privilege level 4 have access to commands that are assigned to this privilege level only.
o The router will attempt to find authorized commands for a user in the local database first.
o Only commands that are listed in the local database with a level 4 association will be allowed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
How many different queues can be configured when implementing custom queuing?

o 8
o 16 X
o 32
o 64
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which PPP protocol allows PPP hosts to dynamically negotiate link options including authentication and compression?

o NCP
o HDLC
o LCP X
o IPX
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which two items must a network administrator assign to a class after it has been defined in CBWFQ? (Choose two.)

o bandwidth X
o weight
o maximum packet limit X
o interface
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. On the basis of the partial configuration that is provided in the exhibit, which statement is true?

o Access list 5 is used to determine interesting traffic.
o If another call is waiting to use the interface, the current connection disconnects after 5 seconds of idle time. X
o When the interface is sending traffic at 128K, another interface will be brought up to help load balance.
o The BRI interface will be disconnected 180 seconds after being brought up.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. Based on the output provided from the show ip interface brief command, which feature has been configured on the ISDN interface?

o NCP
o MLP X
o PAP
o CHAP
o PPP
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. What type of queueing tool has been used in the configuration?

o WFQ
o CBWFQ X
o LLQ
o WRED
o FIFO
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. Which ISDN BRI reference points are indicated by X and Y?"


o S, R
o R, T
o T, U
o R, U X
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. A network administrator is troubleshooting the backup configuration to network 172.22.53.0/24. The primary interface (Serial0) to network 172.22.53.0 is not functioning. However, router maui-soho-01 did not activate the backup link when the primary link went down. On the basis of the partial configuration of router maui-soho-01 that is provided in the exhibit, what is the problem?

o The watched network has the wrong network prefix and prefix length. X
o The dialer map command is configured with the wrong IP address.
o OSPF is denied as interesting traffic and therefore does not propagate the backup network.
o The backup interface network is not included in the OSPF routing protocol configuration.
o The watched network 172.22.53.0 is not included in the OSPF routing protocol configuration.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. Which statement is correct about the output of the show backup command?

o The primary interface is active.
o The secondary interface is active. X
o Both the primary and secondary interfaces are active.
o Both the primary and secondary interfaces are not active.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
What is the maximum distance ADSL transmissions will work?

o 18,000 meters
o 5460 meters X
o 17,068 meters
o 2478 meters
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which form of compression compresses only the data portion of the data stream?

o header
o payload X
o link
o data
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Which command will implement the following dialer watch configuration?

dialer watch-list 2 ip 172.16.34.0 255.255.255.0
dialer watch-list 2 ip 172.16.64.0 255.255.255.0

o Router(config-if)#dialer watch-group 2 X
o Router(config)#dialer watch-group 2 bri0
o Router(config-if)#dialer watch-list 2
o Router(config)#dialer-pool 1 watch-group 2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which function does a terminal adapter(TA) provide?

o Designates a device that is not compatible with ISDN.
o Designates a device that is compatible with ISDN.
o Connects non-ISDN devices to an ISDN network. X
o Directs traffic to and from different subscriber devices.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which statements are true regarding the use of dialer profiles when configured using ISDN BRI or PRI? (Choose three.)

o Each B channel of an ISDN interface must be configured with the same IP subnet or IPX network address.
o All B channels must use the same encapsulation.
o Different DDR parameters can be set for each B channel of an ISDN interface. X
o Different encapsulations can be configured on each B channel. X
o Each B channel of an ISDN interface can be configured with different IP subnets or IPX networks. X
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which three link-layer features are supported in PPP and not in HDLC? (Choose three.)

o authentication X
o encryption
o inverse ARP
o address forwarding
o MLP X
o callback X
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Refer to the exhibit. Assuming that there is no active connection between router Client and router Server, what best describes the result of a ping from Client to 10.1.1.1?

o Server will call back Client and the extended ping will succeed. X
o Server will call back Client but the extended ping will fail.
o Server will not call back Client but the extended ping will succeed.
o Server will not call back Client and the extended ping will fail.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Which Cisco IOS router command is used to verify the modem configuration that a line is using?

o show running-config
o show modem cap
o debug confmodem
o show modemcap
o show line X
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The number of active data subscribers that are connected to a given cable network segment in a modern HFC network typically range between which two values?

o 1 to 100
o 100 to 500
o 500 to 2000 X
o 2000 to 5000
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