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software used for data compression is called:","choices":[{"text":"Zip disk","value":"A"},{"text":"Norton Antivirus","value":"B"},{"text":"Winzip","value":"C"},{"text":"Dr. Solomon Toolkit","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":17649,"question":"Making illegal copies of copyrighted software is called:","choices":[{"text":"Copyleft","value":"A"},{"text":"Theft","value":"B"},{"text":"Piracy","value":"C"},{"text":"Either b or c","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17648,"question":"Which of the following is the name of an antivirus?","choices":[{"text":"Trojan horse","value":"A"},{"text":"Dr. Solomon's Toolkit","value":"B"},{"text":"Logic bomb","value":"C"},{"text":"Redlof","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":17647,"question":"Which of the following statements is correct?","choices":[{"text":"A virus may destroy hardware","value":"A"},{"text":"A virus cannot read Pin code or Credit card number","value":"B"},{"text":"A virus may make 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in:","choices":[{"text":"The operating system","value":"A"},{"text":"An application program","value":"B"},{"text":"The disk drive","value":"C"},{"text":"Any of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17642,"question":"Which of the following is the most serious problem?","choices":[{"text":"Loss of hardware","value":"A"},{"text":"Loss of data","value":"B"},{"text":"Loss of software","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":17641,"question":"The method in which unauthorized access is prevented by providing a key,badge,token or a plastic card to authorized users is called","choices":[{"text":"What you have","value":"A"},{"text":"What you know","value":"B"},{"text":"What you do","value":"C"},{"text":"What you are","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17640,"question":"MS-Word and MS-Excel are:","choices":[{"text":"Operating systems","value":"A"},{"text":"Application 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e-commerce?","choices":[{"text":"E-mail","value":"A"},{"text":"Video conferencing","value":"B"},{"text":"Electronic banking","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17625,"question":"In business computers are used in","choices":[{"text":"Marketing","value":"A"},{"text":"Stock exchanges","value":"B"},{"text":"Banks","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17624,"question":"The reason for using computers is / are that they","choices":[{"text":"Work much faster","value":"A"},{"text":"Never get tired","value":"B"},{"text":"Can do the jobs dangerous for human beings to do","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17623,"question":"Now a days computers are being used in education for","choices":[{"text":"Computer aided education","value":"A"},{"text":"Tutorials and drill & practice","value":"B"},{"text":"Testing understanding of 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modems","choices":[{"text":"are expensive","value":"A"},{"text":"Have more operational features","value":"B"},{"text":"Offer high transmission speed","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17568,"question":"A modem","choices":[{"text":"Converts analog signals into digital signals","value":"A"},{"text":"Converts  digital signals into analog signals","value":"B"},{"text":"Connects a computer in a LAN","value":"C"},{"text":"Both a and b above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17564,"question":"All of the following are true of the simplex mode except","choices":[{"text":"A sender can only send signals","value":"A"},{"text":"It is the most commonly used communication mode","value":"B"},{"text":"Receiver can only receiver signals","value":"C"},{"value":"D"},{"value":"E"}],"correctAnswer":2},{"id":17559,"question":"Propagation of signals across a communication medium is known 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called:","choices":[{"text":"Bit","value":"A"},{"text":"Nibble","value":"B"},{"text":"Byte","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":17527,"question":"Data can be in the form of","choices":[{"text":"Numbers","value":"A"},{"text":"Images","value":"B"},{"text":"Characters","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17524,"question":"Which of the following layers in OSI model routes data from sender to receiver?","choices":[{"text":"Transport layer","value":"A"},{"text":"Application layer","value":"B"},{"text":"Physical layer","value":"C"},{"text":"Network layer","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17522,"question":"Which of the following is not a function of presentation layer in OSI model?","choices":[{"text":"Manage coding schemes","value":"A"},{"text":"Check passwords","value":"B"},{"text":"Provide services for compression of data","value":"C"},{"text":"Provide 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