New Updated Cisco CCNA R&S 200-120 Real Exam Download 11-20

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QUESTION 11

Which three statements accurately describe Layer 2 Ethernet switches? (Choose three.)

 

A.      Spanning Tree Protocol allows switches to automatically share VLAN information.

B.      Establishing VLANs increases the number of broadcast domains.

C.      Switches that are configured with VLANs make forwarding decisions based on both Layer 2 and Layer 3 address information.

D.      Microsegmentation decreases the number of collisions on the network.

E.       In a properly functioning network with redundant switched paths, each switched segment will contain one root bridge with all its ports in the forwarding state. All other switches in that broadcast domain will have only one root port.

F.       If a switch receives a frame for an unknown destination, it uses ARP to resolve the address.

 

Correct Answer: BDE

 

 

QUESTION 12

Refer to the graphic. Host A is communicating with the server. What will be the source MAC address of the frames received by Host A from the server?

 

 

A.      the MAC address of router interface e0

B.      the MAC address of router interface e1

C.      the MAC address of the server network interface

D.      the MAC address of host A

 

Correct Answer: A

 

 

QUESTION 13

Where does routing occur within the DoD TCP/IP reference model?

 

A.      application

B.      internet

C.      network

D.      transport

 

Correct Answer: B

 

 

QUESTION 14

Refer to the exhibit. What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN? (Choose two.)

 

 

A.      The number of collision domains would remain the same.

B.      The number of collision domains would decrease.

C.      The number of collision domains would increase.

D.      The number of broadcast domains would remain the same.

E.       The number of broadcast domains would decrease.

F.       The number of broadcast domains would increase.

 

Correct Answer: CD

 

 

QUESTION 15

For what two purposes does the Ethernet protocol use physical addresses? (Choose two.)

 

A.      to uniquely identify devices at Layer 2

B.      to allow communication with devices on a different network

C.      to differentiate a Layer 2 frame from a Layer 3 packet

D.      to establish a priority system to determine which device gets to transmit first

E.       to allow communication between different devices on the same network

F.       to allow detection of a remote device when its physical address is unknown

 

Correct Answer: AE

 

 

QUESTION 16

Refer to exhibit. Which destination addresses will be used by Host A to send data to Host C? (Choose two.)

 

 

A.      the IP address of Switch 1

B.      the MAC address of Switch 1

C.      the IP address of Host C

D.      the MAC address of Host C

E.       the IP address of the router’s E0 interface

F.       the MAC address of the router’s E0 interface

 

Correct Answer: CF

 

 

QUESTION 17

Refer to the exhibit. Based on the information given, which switch will be elected root bridge and why?

 

 

A.      Switch A, because it has the lowest MAC address

B.      Switch A, because it is the most centrally located switch

C.      Switch B, because it has the highest MAC address

D.      Switch C, because it is the most centrally located switch

E.       Switch C, because it has the lowest priority

F.       Switch D, because it has the highest priority

 

Correct Answer: E

 

 

QUESTION 18

Which of the following statements describe the network shown in the graphic? (Choose two.)

 

 

A.      There are two broadcast domains in the network.

B.      There are four broadcast domains in the network.

C.      There are six broadcast domains in the network.

D.      There are four collision domains in the network.

E.       There are five collision domains in the network.

F.       There are seven collision domains in the network.

 

Correct Answer: AF

 

 

QUESTION 19

In an Ethernet network, under what two scenarios can devices transmit? (Choose two.)

 

A.      when they receive a special token

B.      when there is a carrier

C.      when they detect no other devices are sending

D.      when the medium is idle

E.       when the server grants access

 

Correct Answer: CD

 

 

QUESTION 20

A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local network. How can you accomplish this task, using the fewest physical interfaces and without decreasing network performance?

 

A.      Use a hub to connect the four VLANS with a Fast Ethernet interface on the router.

B.      Add a second router to handle the VLAN traffic.

C.      Add two more Fast Ethernet interfaces.

D.      Implement a router-on-a-stick configuration.

 

Correct Answer: D

 

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