Question 1 of 25
Hints left: 3
Q1
A front-end processor is
Q2
An error-detecting code inserted as a field in a block of data to be transmitted is known as
Q3
Which of the following types of channels moves data relatively slowly?
Q4
The cheapest modems can transmit
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
Usually, it takes 10-bits to represent one character. How many characters can be transmitted at a speed of 1200 BPS?
Q7
The geostationary satellite used for communication systems
Q8
What is the usual number of bits transmitted simultaneously in parallel data transmission used by microcomputers?
Q9
What is the port number for NNTP?
Q10
The packets switching concept was first proposed
Q11
Which of the following does not allow multiple users or devices to share one communications line?
Q12
To connect a computer with a device in the same room, you might be likely to use
Q13
Which of the following is required to communicate between two computers?
Q14
Which of the following summation operations is performed on the bits to check an error-detecting code?
Q15
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?
Q16
The receive equalizer reduces delay distortions using a
Q17
What device separates a single network into two segments but lets the two segments appear as one to higher protocols?
Q18
Internet-like networks within an enterprise.
Q19
With an IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts?
Q20
Which of the following statements is correct for the use of packet switching?
Q21
Which of the following refers to the terms "residual error rate"?
Q22
How many bits internet address is assigned to each host on a TCP/IP internet which is used in all communications with the host?
Q23
The _____ houses the switches in token ring.
Q24
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.
Q25
Telecommunication networks frequently interconnect an organization with its customers and suppliers. Select the best fit for answer: