Question 1 of 25
Hints left: 3
Q1
What is the name given to the exchange of control signals which is necessary for establishing a connection between a modem and a computer at one end of a line and another modem and computer at the other end?
Q2
The data-link layer, in reference to the OSI model, specifies
Q3
Which of the following might be used by a company to satisfy its growing communications needs?
Q4
When a host knows its physical address but not its IP address, it can use _____.
Q5
A modem is connected in between a telephone line and a
Q6
ASK, PSK, FSK, and QAM are examples of _____ encoding.
Q7
The EIA-232 interface has _____ pins.
Q8
Which utility is useful for troubleshooting NetBIOS name resolution problems?
Q9
We can receive data either through our television aerial or down our telephone lines and display this data on our television screen. What is the general name given to this process?
Q10
What frequency range is used for TV transmission and low power microwave applications?
Q11
Which of the following is a wrong example of network layer:
Q12
The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer
Q13
In OSI model, which of the following layer transforms information from machine format into that understandable by user
Q14
What function does a serial interface perform in data communication?
Q15
Which of the following statement is correct?
Q16
Different computers are connected to a LAN by a cable and a/an
Q17
You need to determine whether IP information has been assigned to your Windows NT. Which utility should you use?
Q18
A communications medium that uses pulses of laser light in glass fibers. Select the best fit for answer:
Q19
A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?
Q20
The channel in the data communication model can be
Q21
Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer:
Q22
After you have verified that TCP/IP is installed correctly, what is the next step in verifying the TCP/IP configuration?
Q23
Which of the following statements is correct?
Q24
Which of the following is an important characteristic of LAN?
Q25
A characteristic of a multiprogramming system is: