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Free Share Real PDF Exam Questions Of Exam Cisco 200-120 To Help You Pass Exam (111-120)

QUESTION 111
At which layer of the OSI model does PPP perform?

A.    Layer 2
B.    Layer 3
C.    Layer 4
D.    Layer 5

Answer: A
Explanation:
The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. It is a data link layer protocol (layer 2 in the OSI model )

QUESTION 112
The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command?

A.    This command should be executed from the global configuration mode.
B.    The IP address 10.121.16.8 is the local router port used to forward data.
C.    102 is the remote DLCI that will receive the information.
D.    This command is required for all Frame Relay configurations.
E.    The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.

Answer: E
Explanation:
Broadcast is added to the configurations of the frame relay, so the PVC supports broadcast, allowing the routing protocol updates that use the broadcast update mechanism to be forwarded across itself.

QUESTION 113
Which two options are valid WAN connectivity methods? (Choose two.)

A.    PPP
B.    WAP
C.    DSL
D.    L2TPv3
E.    Ethernet

Answer: AC
Explanation:
The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. It is a data link layer protocol used for WAN connections. DSL is also considered a WAN connection, as it can be used to connect networks, typically when used with VPN technology.

QUESTION 114
Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms?

A.    HDLC
B.    PPP
C.    X.25
D.    Frame Relay

Answer: B
Explanation:
PPP: Provides router-to-router and host-to-network connections over synchronous and asynchronous circuits. PPP was designed to work with several network layer protocols, including IP. PPP also has built-in security mechanisms, such as Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP).

QUESTION 115
Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?

A.    IETF
B.    ANSI Annex D
C.    Q9333-A Annex A
D.    HDLC

Answer: A


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QUESTION 116
A network administrator needs to configure a serial link between the main office and a remote location. The router at the remote office is a non-Cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?

A.    Main(config)# interface serial 0/0
Main(config-if)# ip address 172.16.1.1 255.255.255.252
Main(config-if)# no shut
B.    Main(config)# interface serial 0/0
Main(config-if)# ip address 172.16.1.1 255.255.255.252
Main(config-if)# encapsulation ppp
Main(config-if)# no shut
C.    Main(config)# interface serial 0/0
Main(config-if)# ip address 172.16.1.1 255.255.255.252
Main(config-if)# encapsulation frame-relay
Main(config-if)# authentication chap
Main(config-if)# no shut
D.    Main(config)# interface serial 0/0
Main(config-if)#ip address 172.16.1.1 255.255.255.252
Main(config-if)#encapsulation ietf
Main(config-if)# no shut

Answer: B
Explanation:
With serial point to point links there are two options for the encapsulation. The default, HDLC, is Cisco proprietary and works only with other Cisco routers. The other option is PPP which is standards based and supported by all vendors.

QUESTION 117
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

Answer: ADE
Explanation:
IPsec offer a number of advantages over point to point WAN links, particularly when multiple locations are involved. These include reduced cost, increased security since all traffic is encrypted, and increased scalability as s single WAN link can be used to connect to all locations in a VPN, where as a point to point link would need to be provisioned to each location.

QUESTION 118
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

Answer: BD
Explanation:
Sample “show frame-relay map” output:
R1#sh frame mapSerial0/0 (up): ip 10.4.4.1 dlci 401(0x191,0x6410), dynamic,broadcast,, status defined, activeSerial0/0 (up): ip 10.4.4.3 dlci 403(0x193,0x6430), dynamic,broadcast,, status defined, activeSerial0/0 (up): ip 10.4.4.4 dlci 401(0x191,0x6410), static,CISCO, status defined, active

QUESTION 119
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

Answer: B
Explanation:
When connecting Cisco devices with non-Cisco devices, you must use IETF4 encapsulation on both devices. Check the encapsulation type on the Cisco device with the show frame-relay map exec command.

QUESTION 120
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.

Answer: ACD
Explanation:
For multiple PVC’s on a single interface, you must use subinterfaces, with each subinterface configured for each PVC. Each subinterface will then have its own IP address, and no IP address will be assigned to the main interface.


Free Share Real PDF Exam Questions Of Exam Cisco 200-120 To Help You Pass Exam

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