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CCNA QUESTIONS : PART 9

Which type of device can be replaced by the use of subinterfaces for VLAN routing ?

 

Layer 2bridge

 Layer 2switch

Layer 3 switch

router

SHOW ANSWER

If the primary root bridge experiences a power loss, which switch takes over?

switch 0040.00.90C5

switch 00E0.F90B.6BE3

switch 0004.9A1A.C182

 switch 00E0.F726.3DC6

SHOW ANSWER

Which feature builds a FIB and an adjacency table to expedite packet forwarding?

cut through

 fast switching

 process switching

Cisco Express Forwarding

SHOW ANSWER

Which three statements about RSTP are true? (Choose three.)

 

RSTP significantly reduces topology reconverging time after a link failure.

 RSTP expands the STP port roles by adding the alternate and backup roles.

 RSTP port states are blocking, discarding, learning, or forwarding.

 RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.

 RSTP also uses the STP proposal-agreement sequence.
F. RSTP uses the same timer-based process as STP on point-to-point links

RSTP uses the same timer-based process as STP on point-to-point links

SHOW ANSWER

Which two commands correctly verify whether port security has been configured on port
FastEthernet 0/12 on a switch? (Choose two.)

 

SW1#show port-secure interface FastEthernet 0/12

 SW1#show switchport port-secure interface FastEthernet 0/12

 SW1#show running-config

 SW1#show port-security interface FastEthernet 0/12

 SW1#show switchport port-security interface FastEthernet 0/12

SHOW ANSWER

Which feature facilitates the tagging of frames on a specific VLAN?

Routing

 Hairpinning

 Encapsulation

Switching

SHOW ANSWER

Which technology can enable multiple vlan to communicate with one another?

 

Intra-vlan routing using a layer 3 switch

Inter-vlan routing using a layer 3 switch

 Inter-vlan routing using a layer 2 switch

 Intra-vlan routing using router on a stick

SHOW ANSWER

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?

 

Main(config)# interface serial 0/0
Main(config-if)# ip address 172.16.1.1 255.255.255.252
Main(config-if)# no shut

 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

 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

 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

SHOW ANSWER

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

HDLC

 PPP

 X.25

 Frame Relay

SHOW ANSWER

Which of the following describes the roles of devices in a WAN? (Choose three.)

 

A CSU/DSU terminates a digital local loop.

 A modem terminates a digital local loop.

A CSU/DSU terminates an analog local loop.

A modem terminates an analog local loop.

 A router is commonly considered a DTE device.

 A router is commonly considered a DCE device.

SHOW ANSWER

Which feature can you implement to reserve bandwidth for VoIP calls across the call path?

PQ

 CBWFQ

 round robin

 RSVP

SHOW ANSWER

During which phase of PPPoE is PPP authentication performed?

 

the PPP Session phase

 Phase 2

 the Active Discovery phase

 the Authentication phase

 Phase 1

SHOW ANSWER

Which three circumstances can cause a GRE tunnel to be in an up/down state? (Choose three.)

 

The tunnel interface IP address is misconfigured.

 The tunnel interface is down.

 A valid route to the destination address is missing from the routing table.

 The tunnel address is routed through the tunnel itself.

 The ISP is blocking the traffic.

An ACL is blocking the outbound traffic.

SHOW ANSWER
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