CCNA mcq questions with answer – Set 21

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#1. Which command will display the CHAP authentication process as it occurs between two routers in the network?

show chap authentication

show chap authentication

show interface serial 0

show interface serial 0

debug ppp authentication

debug ppp authentication

debug chap authentication

debug chap authentication

#2. Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational?

frame-relay arp

frame-relay arp

frame-relay map

frame-relay map

frame-relay interface-dci

frame-relay interface-dci

frame-relay lmi-type

frame-relay lmi-type

#3. Suppose that you have a customer who has a central HQ and six branch offices. They anticipate adding six more branches in the near future. They wish to implement a WAN technology that will allow the branches to economically connect to HQ and you have no free ports on the HQ router. Which of the following would you recommend?

PPP

PPP

HDLC

HDLC

Frame Relay

Frame Relay

ISDN

ISDN

#4. Which of the following command options are displayed when you use the Router#show frame-relay ? command? (Choose three.)

Select all that apply:

dlci

dlci

neighbors

neighbors

lmi

lmi

pvc

pvc

map

map

#5. How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?

Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.

Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.

Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.

Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.

Configure many subinterfaces in the same subnet.

Configure many subinterfaces in the same subnet.

Configure a single subinterface to establish multiple PVC connections to multiple remote router interfaces.

Configure a single subinterface to establish multiple PVC connections to multiple remote router interfaces.

#6. Which encapsulations can be configured on a serial interface? (Choose three.)

Select all that apply:

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Ethernet

Ethernet

Token Ring

Token Ring

HDLC

HDLC

Frame Relay

Frame Relay

PPP

PPP

#7. When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured?

The Frame Relay encapsulation on the physical interface

The Frame Relay encapsulation on the physical interface

The local DLCI on each subinterface

The local DLCI on each subinterface

An IP address on the physical interface

An IP address on the physical interface

The subinterface type as point-to-point

The subinterface type as point-to-point

#8. When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the clock rate determined?

Supplied by the CSU/DSU

Supplied by the CSU/DSU

By the far end router

By the far end router

By the clock rate command

By the clock rate command

By the physical layer bit stream timing

By the physical layer bit stream timing

#9. A default Frame Relay WAN is classified as what type of physical network?

Point-to-point

Point-to-point

Broadcast multi-access

Broadcast multi-access

Non-broadcast multi-access

Non-broadcast multi-access

Non-broadcast multipoint

Non-broadcast multipoint

#10. You need to provide a network with an ISDN WAN link. The router supplied to you has a BRI/U interface. What must be done to adapt this router for the ISDN connection?

Nothing; the router is already suitable.

Nothing; the router is already suitable.

Purchase a BRI WAN interface card to install the router.

Purchase a BRI WAN interface card to install the router.

Purchase an external NT1 to terminate the local loop.

Purchase an external NT1 to terminate the local loop.

Purchase a TA/NT1 device to install on the router.

Purchase a TA/NT1 device to install on the router.

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