Chapter 3 Quiz

Question 1

How much total bandwidth is provided by a T1 line

Answer 1

1.544 Mb/s

Question 2

Which serial 0/0/0 interface state will be shown if no serial cable is attached to the router, but everything else has been correctly configured and turned on?

Answer 2

Serial 0/0/0 is down, line protocol is down

Question 3

With which layers of the OSI model do the PPP control protocols interface?

Answer 3

NCP interfaces with Layer 3; LCP interfaces with Layer 1

Question 4

how is a PPP frame formed.. what order of each field?

Answer 4

flag, address, control (data link not required), Protocol (1 or 2 bytes), Data and Frame check sequence

Question 5

A network designer is prototyping a WAN design. When configuring CHAP authentication for PPP, how should the username on each router be configured?

Answer 5

It should be the same as the remote router hostname.

Question 6

At which layer of the OSI model does multiplexing take place?

Answer 6

physical -1