Passquestion Cisco CCNA 200-125 study guide pdf

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Share some CCNA Routing and Switching 200-125 exam questions and answers below.

What are two requirements for an HSRP group? (Choose two.)

A. exactly one active router

B. one or more standby routers

C. one or more backup virtual routers

D. exactly one standby active router

E. exactly one backup virtual router

Answer: AD

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

A. Frame Relay

B. HDLC

C. x.25

D. PPP

Answer: D

What are three benefits of implementing vlans?(choose three)

A. A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure

B. Broadcast storms can be mitigated by decreasing the number of broadcast domains, thus increasing their size.

C. A higher level of network security can be reached by separating sensitive data traffic from other network traffic.

D. Port-based vlans increase switch-port use efficient, thanks to 802.1Q trunks

E. A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure.

F. Broadcast storms can be mitigated by increasing the number of broadcast domains,thus reducing their size.

G. VLANs make it easier for IT staff to configure new logical groups,because the vlans all belong to the same broadcast domain.

Answer: CEF

If you configure syslog messages without specifying the logging trap level, which log messages will the router send?

A. 0-4

B. 0-5

C. 0-6

D. 0-2

E. 0-1

Answer: C

What is true about DTP? (Choose Three.)

A. Layer 2 protocol

B. Layer 3 protocol

C. Proprietary protocol

D. enabled by default

E. disabled by default

Answer: ACD

Which command can you enter to set the default route for all traffic to an interface?

A. router(config)#ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1

B. router(config)#ip route 0.0.0.0 255.255.255.255 GigabitEthernet0/1

C. router(config-router)#default-information originate

D. router(config-router)#default-information originate always

Answer: A

Which two statements about late collisions are true? (Choose two.)

A. They may indicate a duplex mismatch.

B. By definition, they occur after the 512th bit of the frame has been transmitted.

C. They indicate received frames that did not pass the FCS match.

D. They are frames that exceed 1518 bytes.

E. They occur when CRC errors and interference occur on the cable.

Answer: AB

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.

Answer: B,D,E

What 8-bit field exists in IP packet for QoS?

A. Tos Field

B. DSCP

C. IP Precedence

D. Cos

Answer: A

You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the max number of subnets.

Which network address and subnet mask meet this requirement?

A. 192.168.252.8 255.255.255.248

B. 192.168.252.8 255.255.255.252

C. 192.168.252.16 255.255.255.240

D. 192.168.252.0 255.255.255.252

E. 192.168.252.16 255.255.255.252

Answer: A

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