All Free Computer Science and IT MCQs with Answers

1211. Multithreading is also called as:__________?

• A. Concurrency
• B. Simultaneity
• C. Crosscurrent
• D. Recurrent

Explanation: Multithreading allows multiple threads to make progress within a program, which is a form of concurrency. Simultaneity strictly means occurring at exactly the same time, so it is not the usual term here.

1212. The process to remove errors in a program is called_________?

• A. Compiling
• B. Executing
• C. Bug
• D. Debugging

Explanation: Debugging is the process of locating and correcting errors, or bugs, in a program. Compiling translates source code, whereas executing runs the program.

1213. ___________ languages are close to humans?

• A. Low level languages
• B. Assembly languages
• C. High level languages
• D. None of these

Explanation: High-level languages use commands and structures that are relatively close to human language and easier to write. Low-level and assembly languages are closer to machine instructions.

1214. Procedural language is ___________ generation language.

• A. 1st
• B. 2nd
• C. 3rd
• D. 4th

Explanation: Procedural languages such as C, FORTRAN and Pascal are generally classified as third-generation languages because they use higher-level instructions closer to human problem-solving than machine or assembly language.

1215. Pseudo code is similar to ___________?

• A. Machine language
• B. Simple English
• C. Scientific language
• D. All of these

Explanation: Pseudocode describes program logic using simple, structured English-like statements without following the strict syntax of a programming language. It is therefore easier for humans to read than machine or scientific language.

1216. Computer program is also known as ___________?

• A. Software
• B. Process
• C. Procedure
• D. Compiler

Explanation: A computer program is a set of instructions that directs the computer to perform tasks, and such instructions collectively form software. A compiler translates a program but is not the program itself.

1217. Which of the following do not belong to queues for processes?

• A. Job Queue
• B. PCB queue
• C. Device Queue
• D. Ready Queue

Explanation: Operating systems commonly maintain job, ready and device queues for processes. A PCB is the process control block describing a process, not normally a standard process queue in this classification.

1218. The basic unit of CPU utilization is called?

• A. Process
• B. Thread
• C. program
• D. None of these

Explanation: A thread is the basic unit of CPU utilization and scheduling within a process. A process is a larger resource-owning program instance that may contain one or more threads.

1219. which of the following is a programming language?

• A. Lotus
• B. Pascal
• C. MS-Excel
• D. Netscape

Explanation: Pascal is a programming language designed for structured programming. Lotus, MS-Excel, and Netscape are software applications rather than programming languages.

1220. Compiler Is Also__________?

• A. Software
• B. Program
• C. Code
• D. All Of These

Explanation: A compiler is a software program that translates source code into machine code or another lower-level form. “Code” describes what the compiler processes or contains, not the compiler itself, so “program” is the most precise option.