WAN Technologies

Question 1

How would you determine the type of Serial cable connected to an interface from the command line?

Answer 1

Execute the ‘show controllers’ command

Question 2

What command configures a interface to have a clock rate of 64kbps ?

Answer 2

clock rate 64000

Question 3

What is NCP Responsible for in PPP?

Answer 3

Network Control Protocol (NCP) is responsible for negotiating upper-layer protocols that will be carried across the PPP connection.

Question 4

What is LCP Responsible for in PPP?

Answer 4

Link Control Protocol (LCP) has the primary responsibility of negotiating and maintaining a PPP connection.

Question 5

Which WAN switching technology is used with ISDN?

Answer 5

Circuit Switching

Question 6

What would be the advantages of using PPP over HDLC when connecting between Cisco and non Cisco routers?

Answer 6

HDLC has a proprietary “type” feild that may be incompatibile with equipment for other vendors.

Question 7

Which WAN switching technology is used with ATM (Asynchronous Transfer Mode)?

Answer 7

Cell-Switching