Data Processing questions and answers

Data Processing Questions and Answers

Data Processing questions to test candidates’ acquisition of basic skills of data processing and knowledge in the application of ICT in facilitating business transactions and education.

41.

A type of file organization that stores data in the order of their arrival is called

A.

Indexed-sequential file organization

B.

Hashed file organization

C.

Random file organization

D.

Sequential file organization

Correct answer is D

A type of file organization that stores data in the order of their arrival is called sequential file organization.

In sequential file organization, records are stored in the order in which they are added to the file. This means that the first record in the file is the oldest record, and the last record in the file is the newest record.

Sequential file organization is a simple and efficient way to store data that is accessed in a sequential order. For example, sequential file organization is often used to store data that is logged in chronological order.

However, sequential file organization can be inefficient for accessing data in a random order. For example, if you want to access the 10th record in a sequential file, you have to read the first 9 records before you can access the 10th record.

 

42.

The Difference Engine and the Analytical Engine were invented by

A.

Ada Lovelace and Charles Babbage

B.

Blaise Pascal

C.

Blaise Pascal and Ada Lovelace

D.

Charles Babbage

Correct answer is D

The Difference Engine and the Analytical Engine were invented by Charles Babbage.

Blaise Pascal invented the first mechanical calculator, the Pascaline, in the 17th century. However, the Difference Engine and the Analytical Engine were much more sophisticated machines that could perform a wider range of calculations.

Babbage began work on the Difference Engine in the early 1820s. It was a mechanical calculator that could be used to tabulate polynomial functions. The Difference Engine was never completed, but Babbage did build a small prototype.

In the 1830s, Babbage began work on the Analytical Engine. The Analytical Engine was a much more ambitious project than the Difference Engine. It was a general-purpose computer that could be programmed to perform any calculation. The Analytical Engine was never built, but Babbage's design is considered to be the first blueprint for a modern computer.

Ada Lovelace, the daughter of poet Lord Byron, was a collaborator of Babbage's. She is credited with writing the first computer program, which was for the Analytical Engine.

The Difference Engine and the Analytical Engine were revolutionary machines that laid the foundation for the development of modern computers.

43.

Which of the following practices is a safety measure?

A.

Maintaining a dust-free environment

B.

Eating and typing at the same time

C.

Opening up the computer while still connected to the power supply

D.

Wearing hand gloves while typing

Correct answer is A

Maintaining a dust-free environment is the only safety measure practice among the options.

44.

The legal right given to the owner of an intellectual property to prevent others from duplicating or using the work freely is known as

A.

Legal right

B.

Ownership right

C.

Trademark

D.

Copyright

Correct answer is D

A copyright is a type of intellectual property that gives its owner the exclusive right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time. The creative work may be in a literary, artistic, educational, or musical form.

45.

The following computer files will open on a computer that has only Microsoft office 1997 - 2003 installed except

A.

Exam.rft.

B.

Exam.doc

C.

Exam.ppt

D.

Exam.docx

Correct answer is B

Doc is the file extension for microsoft word between 1997 - 2003.