Information Technology Reference
In-Depth Information
ISDN's D channel uses which framing standard?
8
a. HDLC
b. LAPB
c. LAPF
d. LAPD
For the following configuration, when does the BRI become active?
9
interface serial 0
ip address 1.1.1.1 255.255.255.252
backup load 75 10
backup interface bri 0
a. When serial 0 is down for 60 seconds
b. When serial 0 is up for 10 seconds
c. When serial 0 is above 75 percent use
d. When serial 0 is below 10 percent use
What does the following command do?
10
x25 map ip 172.18.1.5 12121212 broadcast
a. Maps the remote IP address to the remote X.121 address
b. Maps the remote IP address to the local X.121 address
c. Maps the local IP address to the remote X.121 address
d. Maps the local IP address to the local X.121 address
11
Which of the following are layers in the ATM reference model?
a. Physical
b. Data-link
c. ATM
d. Network
e. Transport
f. Presentation
g. Adaptation
h. Session
i. Application
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