New Updated Cisco CCNA R&S 200-120 Real Exam Download 251-260



What are three reasons that an organization with multiple branch offices and roaming users might implement a Cisco VPN solution instead of point-to-point WAN links? (Choose three.)


A.      reduced cost

B.      better throughput

C.      broadband incompatibility

D.      increased security

E.       scalability

F.       reduced latency


Correct Answer: ADE





Which two statistics appear in show frame-relay map output? (Choose two.)


A.      the number of BECN packets that are received by the router

B.      the value of the local DLCI

C.      the number of FECN packets that are received by the router

D.      the status of the PVC that is configured on the router

E.       the IP address of the local router


Correct Answer: BD




It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit. Which of the following procedures are required to accomplish this task? (Choose three.)


A.      Remove the IP address from the physical interface.

B.      Encapsulate the physical interface with multipoint PPP.

C.      Create the virtual interfaces with the interface command.

D.      Configure each subinterface with its own IP address.

E.       Disable split horizon to prevent routing loops between the subinterface networks.

F.       Configure static Frame Relay map entries for each subinterface network.


Correct Answer: ACD




Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link?


A.      show frame-relay lmi

B.      show frame-relay map

C.      show frame-relay pvc

D.      show interfaces serial


Correct Answer: B




Users have been complaining that their Frame Relay connection to the corporate site is very slow. The network administrator suspects that the link is overloaded. Based on the partial output of the Router# show frame relay pvc command shown in the graphic, which output value indicates to the local router that traffic sent to the corporate site is experiencing congestion?



A.      DLCI = 100

B.      last time PVC status changed 00:25:40

C.      in BECN packets 192

D.      in FECN packets 147

E.       in DE packets 0


Correct Answer: C




What occurs on a Frame Relay network when the CIR is exceeded?


A.      All TCP traffic is marked discard eligible.

B.      All UDP traffic is marked discard eligible and a BECN is sent.

C.      All TCP traffic is marked discard eligible and a BECN is sent.

D.      All traffic exceeding the CIR is marked discard eligible.


Correct Answer: D




Which two statements about using the CHAP authentication mechanism in a PPP link are true? (Choose two.)


A.      CHAP uses a two-way handshake.

B.      CHAP uses a three-way handshake.

C.      CHAP authentication periodically occurs after link establishment.

D.      CHAP authentication passwords are sent in plaintext.

E.       CHAP authentication is performed only upon link establishment.

F.       CHAP has no protection from playback attacks.


Correct Answer: BC




Refer to the exhibit. Which statement describes DLCI 17?



A.      DLCI 17 describes the ISDN circuit between R2 and R3.

B.      DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.

C.      DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.

D.      DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.


Correct Answer: C




What is the result of issuing the frame-relay map ip 202 broadcast command?


A.      defines the destination IP address that is used in all broadcast packets on DCLI 202

B.      defines the source IP address that is used in all broadcast packets on DCLI 202

C.      defines the DLCI on which packets from the IP address are received

D.      defines the DLCI that is used for all packets that are sent to the IP address

Correct Answer: D




Which PPP subprotocol negotiates authentication options?


A.      NCP

B.      ISDN

C.      SLIP

D.      LCP

E.       DLCI


Correct Answer: D


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