200-125 CCNA CCNA Cisco Certified Network Associate CCNA (v3.0) | Passtcert

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Share some CCNA Routing and Switching 200-125 exam questions and answers below.
Which three statements accurately describe layer 2 Ethernet switches?(choose three) 
A. Micro segmentation decreases the number of collisions on the network. 
B. if a switch receives a frame for an unkown destination, it uses ARP to resolve the address. 
C. Spanning Tree Protocol allows switches to automatically share vlan information. 
D. In a properly functioning network with redundant switched paths, each switched aegment 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. 
E. Establishing vlans increases the number of broadcast domains. 
F. Switches that are configured with vlans make forwarding decisions based on both layer 2 and layer 3 address information. 
Answer: ADE

Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication? 
A. transport 
B. network 
C. presentation 
D. session 
E. application 
Answer: E

A cisco router is booting and has just completed the POST process. It is now ready to find and load an IOSimage. 
What function does the router perform next? 
A. It checks the configuration register 
B. It attempts to boot from a TFTP server 
C. It loads the first image file in flash memory 
D. It inspects the configuration file in NVRAM for boot instructions 
Answer: A

Which interface counter can you use to diagnose a duplex mismatch problem? 
A. no earner B. late collisions 
C. giants 
D. CRC errors 
E. deferred 
F. runts 
Answer: B

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 commands can you use to set a router boot image? (Choose three.) 
A. Router(config)# boot system flash c4500-p-mz.121-20.bin 
B. Router(config)# boot system tftp c7300-js-mz.122-33.SB8a.bin 
C. Router(config)#boot system rom c7301-advipservicesk9-mz.124-24.T4.bin 
D. Router> boot flash: c180x-adventerprisek9-mz-124-6T.bin 
E. Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.bin 
F. Router(config)#boot bootldr bootflash:c4500-jk9s-mz.122-23f.bin 
Answer: ABC

During which phase of PPPoE is PPP authentication performed? 
A. the PPP Session phase 
B. Phase 2 
C. the Active Discovery phase 
D. the Authentication phase 
E. Phase 1 
Answer: A

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