Question 1 of 25
Hints left: 3
Q1
What is the usual number of bits transmitted simultaneously in parallel data transmission used by microcomputers?
Q2
Which of the following statements is correct for the use of packet switching?
Q3
The research and development department at your office has been experimenting with different technologies to help improve the performance of the network. One group has been examining the use of a broadband network versus a based band network. Select the correct statement about broadband and baseband.
Q4
An error-detecting code inserted as a field in a block of data to be transmitted is known as
Q5
Eight stations are competing for the use of a shared channel using the 'Adaptive tree Walk Protocol'. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?
Q6
The receive equalizer reduces delay distortions using a
Q7
Which of the following does not allow multiple users or devices to share one communications line?
Q8
The _____ houses the switches in token ring.
Q9
The cheapest modems can transmit
Q10
What device separates a single network into two segments but lets the two segments appear as one to higher protocols?
Q11
With an IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts?
Q12
The packets switching concept was first proposed
Q13
What is the port number for NNTP?
Q14
Which of the following summation operations is performed on the bits to check an error-detecting code?
Q15
To connect a computer with a device in the same room, you might be likely to use
Q16
Telecommunication networks frequently interconnect an organization with its customers and suppliers. Select the best fit for answer:
Q17
A front-end processor is
Q18
How many bits internet address is assigned to each host on a TCP/IP internet which is used in all communications with the host?
Q19
The geostationary satellite used for communication systems
Q20
Which of the following refers to the terms "residual error rate"?
Q21
Internet-like networks within an enterprise.
Q22
Usually, it takes 10-bits to represent one character. How many characters can be transmitted at a speed of 1200 BPS?
Q23
Which of the following is required to communicate between two computers?
Q24
Which of the following types of channels moves data relatively slowly?
Q25
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?