ccna routing and switching 200-125 dumps

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Share some CCNA Routing and Switching 200-125 exam questions and answers below.
What is the difference between a CSU/DSU and a modem? 
A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line. 
B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line. 
C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line. 
D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line. 
Answer: D

A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. What is the highest layer of the protocol stack that the network administrator is using for this operation? 
A. application 
B. presentation 
C. session 
D. transport 
E. internet 
F. data link 
Answer: A

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

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