Question 1 of 25
Hints left: 3
Q1
When a host knows its physical address but not its IP address, it can use _____.
Q2
Which of the following statements is correct?
Q3
Different computers are connected to a LAN by a cable and a/an
Q4
A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?
Q5
What function does a serial interface perform in data communication?
Q6
A modem is connected in between a telephone line and a
Q7
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?
Q8
The channel in the data communication model can be
Q9
Which of the following statement is correct?
Q10
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?
Q11
What frequency range is used for TV transmission and low power microwave applications?
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
A characteristic of a multiprogramming system is:
Q14
The EIA-232 interface has _____ pins.
Q15
Which of the following is an important characteristic of LAN?
Q16
Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer:
Q17
After you have verified that TCP/IP is installed correctly, what is the next step in verifying the TCP/IP configuration?
Q18
A communications medium that uses pulses of laser light in glass fibers. Select the best fit for answer:
Q19
The data-link layer, in reference to the OSI model, specifies
Q20
ASK, PSK, FSK, and QAM are examples of _____ encoding.
Q21
Which of the following is a wrong example of network layer:
Q22
You need to determine whether IP information has been assigned to your Windows NT. Which utility should you use?
Q23
Which of the following might be used by a company to satisfy its growing communications needs?
Q24
Which utility is useful for troubleshooting NetBIOS name resolution problems?
Q25
In OSI model, which of the following layer transforms information from machine format into that understandable by user