Which of the following conditions is used to transmit two packets over a medium at the same time?
A). Contention
B). Collision
C). Synchronous
D). Asynchronous
E). None of the above
Which utility is useful for finding the local host name?
A). NBTSTAT
B). Netstat
C). PING
D). Hostname
E). None of the above
What is the first octet range for a class C IP address?
A). 192 - 255
B). 192 - 223
C). 192 - 226
D). 128 - 191
E). 1 - 126
Which of the following divides the high speed signal into frequency bands?
A). t-switch
B). modem
C). frequency-division multiplexer
D). time-division multiplexer
E). None of the above
You're on your PC at midnight and an electric storm pops up. What's the best way to protect your PC.
A). you don't worry; you have a lightning rod on your house
B). you don't worry; you've got a surge protector on your PC
C). you don't worry; you've got a surge protector on your PC and phone line to your modem
D). unplug the PC and remove phone line from the modem
E). stop standing on it