Computer Archives

581. Which of the following would most likely NOT be a symptom of a virus ?

A. Existing program files and icons disappear.

B. The CD-ROM stops functioning.

C. THe Web browser opens to an unusual home page.

D. Odd messages or images are displayed on the screen.

✅ The correct answer is option B.

582. ………. Is known as unauthorized access into others system.

A. Hacking

B. Encryption

C. Decryption

D. None of these

✅ The correct answer is option A.

583. A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen?

A. microfilm

B. microfiche

C. film card

D. COM

✅ The correct answer is option C.

584. Which of the following is used for serial access storage only?

A. RAM

B. Magnetic tape

C. Magnetic disk

D. Core memory

✅ The correct answer is option B.

585. A logic bomb that was created to erupt on Michelangelo’s birthday is an example of a:

A. Time-related bomb sequence

B. Virus

C. Time bomb

D. Trojan horse

✅ The correct answer is option C.

586. Surgeons can perform delicate operation by manipulating devices through computers instead of manually. this technology is known as-

A. Robotics

B. Computer forensics

C. Simulation

D. Forecasting

✅ The correct answer is option A.

587. Who built the world’s first electronic calculator using telephone relays, light bulbs and batteries?

A. Claude Shannon

B. Konard Zuse

C. George Stibitz

D. Howard H. Aliken

✅ The correct answer is option C.

588. Which of the following statements is FALSE concerning file?

A. Files may share the same name or the same extension but not both

B. Every file in the same foldr must have a unique name

C. File extension is another name for file type

D. The file extension comes before the dot (.) followed by the file name

✅ The correct answer is option D.

589. The most popular language for interactive use is

A. COBOL

B. PASCAL

C. BASIC

D. FORTRAN

✅ The correct answer is option C.

590. A computer performs operations by comparing data items and then, depending on the results, follows predetermined course of action. What are such operations called?

A. Sequential

B. Logical

C. Digital

D. Physical

✅ The correct answer is option B.