Computer Science Questions and Answers
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
What is considered the brain of the computer?
Central Processing Unit
Monitor/Display Screen
Mouse
Printer
Correct answer is A
The CPU is the brain of a computer, containing all the circuitry needed to process input, store data, and output results.
The CPU is constantly following instructions of computer programs that tell it which data to process and how to process it. Without a CPU, we could not run programs on a computer
Hexadecimal numbers are a mixture of
Octal and decimal numbers
Binary and octal numbers
Letters and decimal digits
Binary and decimal numbers
Correct answer is C
The hexadecimal number system is described as a 16 digit number representation of numbers from 0 - 9 (decimal digits) and digits from A - F (letters)
Programming language COBOL works best for use in
Siemens applications
student applications
social applications
commercial application
Correct answer is D
COBOL, in full Common Business-Oriented Language, high-level computer programming language, one of the first widely used languages and for many years the most popular language in the business community
Tables
DBMS
Production passwords
Database
Correct answer is B
The Database Management System or DBMS helps to tackle issues as these
In SQL, which command is used to remove a stored function from the database?
REMOVE Function
DELETE function
DROP function
ERASE Function
Correct answer is C
DROP FUNCTION removes the definition of an existing function. To execute this command the user must be the owner of the function. The argument types to the function must be specified, since several different functions can exist with the same name and different argument lists