Question
Which of the following is an example of Half
Duplex?Solution
The communication between sender and receiver occurs in both directions in half duplex transmission, but only one at a time. The sender and receiver can both send and receive the information, but only one is allowed to send at any given time. Half duplex is still considered a one-way road, in which a vehicle traveling in the opposite direction of the traffic has to wait till the road is empty before it can pass through. For example, in walkie-talkies, the speakers at both ends can speak, but they have to speak one by one. They cannot speak simultaneously.
________ records everything you type on your PC in order to obtain your log-in name, passwords and other sensitive information.
What does 'ctrl +esc' do?
Before granting access a computer checks from the database which of the following?
Which out of following is not a file extension of a video file?
Device that converts digital signals to analog signals at the start of long-distance transmissions is
Which of the following is a column, or set of columns, in a table that can uniquely identify any database record without referring to any other data?
Which of the following keyboard shortcuts is used to open the font window in MS-PowerPoint, where you can adjust the font size, style, type, etc.?
Which file system is commonly used in Linux-based operating systems?
South Bridge is ________
______are specially designed computer chips that reside inside other device, such as your car or your electronic thermostat.
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