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Computer Awareness / Knowledge Practise Tests


1.
An analog signal
1. is a varying voltage.
2.  is either a 1 or a 0.
3.  is either on or off.
4. All the above
5. none of the above



2.
A thyratron cannot be used as a
1. Amplifier
2. Vaccum
3. Rectifier
4. Connector
5. None



3.
When sending an e-mail, the ____line describes the contents of the message
1. to
2. subject
3. contents
4. CC
5. none of the above



4.
What is backup?
1. Adding more components to your network
2. Protecting data by copying it from the original source to a different destination
3. Filtering old data from the new data
4. Accessing data on tape
5. none of the above



5.
Standardization of Microsoft programs and the Windows operating system has made the spread of viruses:
1. more complicated
2. more difficult
3. easier
4. slower
5. none of the above