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CCNA Routing and Switching v3.0

QUESTION 371

Which two statements about using leased lines for your WAN infrastructure are true? (Choose two.)

 

A.

Leased lines provide inexpensive WAN access.

B.

Leased lines with sufficient bandwidth can avoid latency between endpoints.

C.

Leased lines require little installation and maintenance expertise.

D.

Leased lines provide highly flexible bandwidth scaling.

E.

Multiple leased lines can share a router interface.

F.

Leased lines support up to T1 link speeds.

 

Correct Answer: BC

 

 

QUESTION 372

In which two formats can the IPv6 address fd15:0db8:0000:0000:0700:0003:400F:572B be written? (Choose two.)

 

A.

fd15:0db8:0000:0000:700:3:400F:527B

B.

fd15::db8::700:3:400F:527B

C.

fd15:db8:0::700:3:4F:527B

D.

fd15:0db8::7:3:4F:527B

E.

fd15:db8::700:3:400F:572B

 

Correct Answer: AE

 

 

QUESTION 373

Which command can you enter to display duplicate IP addresses that the DHCP server assigns?

 

A.

show ip dhcp conflict 10.0.2.12

B.

show ip dhcp database 10.0.2.12

C.

show ip dhcp server statistics

D.

show ip dhcp binding 10.0.2.12

 

Correct Answer: A

 

 

QUESTION 374

Which two statements about IPv4 multicast traffic are true? (Choose two.)

 

A.

It burdens the source host without affecting remote hosts.

B.

It uses a minimum amount of network bandwidth.

C.

It is bandwidth-intensive.

D.

It simultaneously delivers multiple streams of data.

E.

It is the most efficient way to deliver data to multiple receivers.

 

Correct Answer: DE

Explanation:

IP multicast is a bandwidth-conserving technology that reduces traffic by simultaneously delivering a single stream of information to potentially thousands of corporate recipients and homes. Applications that take advantage of multicast include video conferencing, corporate communications, distance learning, and distribution of software, stock quotes, and news.

IP multicast delivers application source traffic to multiple receivers without burdening the source or the receivers while using a minimum of network bandwidth. Multicast packets are replicated in the network at the point where paths diverge by Cisco routers enabled with Protocol Independent Multicast (PIM) and other supporting multicast protocols, resulting in the most efficient delivery of data to multiple receivers.

 

 

QUESTION 375

Which command sequence can you enter to create VLAN 20 and assign it to an interface on a switch?

 

A.

Switch(config)#vlan 20

Switch(config)#Interface gig x/y

Switch(config-if)#switchport access vlan 20

B.

Switch(config)#Interface gig x/y

Switch(config-if)#vlan 20

Switch(config-vlan)#switchport access vlan 20

C.

Switch(config)#vlan 20

Switch(config)#Interface vlan 20

Switch(config-if)#switchport trunk native vlan 20

D.

Switch(config)#vlan 20

Switch(config)#Interface vlan 20

Switch(config-if)#switchport access vlan 20

E.

Switch(config)#vlan 20

Switch(config)#Interface vlan 20

Switch(config-if)#switchport trunk allowed vlan 20

 

Correct Answer: A

 

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QUESTION 376

Which two statements about IPv6 and routing protocols are true? (Choose two.)

 

A.

Link-local addresses are used to form routing adjacencies.

B.

OSPFv3 was developed to support IPv6 routing.

C.

EIGRP, OSPF, and BGP are the only routing protocols that support IPv6.

D.

Loopback addresses are used to form routing adjacencies.

E.

EIGRPv3 was developed to support IPv6 routing.

 

Correct Answer: AB

 

 

QUESTION 377

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

 

A.

Layer 2 bridge

B.

Layer 2 switch

C.

Layer 3 switch

D.

router

 

Correct Answer: C

 

 

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QUESTION 378

What is the correct routing match to reach 172.16.1.5/32?

 

A.

172.16.1.0/26

B.

172.16.1.0/25

C.

172.16.1.0/24

D.

the default route

 

Correct Answer: A

 

 

QUESTION 379

Which command can you enter to determine whether serial interface 0/2/0 has been configured us
ing HDLC encapsulation?

 

A.

router#show platform

B.

router#show interfaces Serial 0/2/0

C.

router#show ip interface s0/2/0

D.

router#show ip interface brief

 

Correct Answer: B

 

 

QUESTION 380

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

 

A.

Cisco Express Forwarding

B.

process switching

C.

fast switching

D.

cut-through

 

Correct Answer: A

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