Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
781
The system bus in a computer is primarily responsible for:
Answer:
Connecting internal components
The system bus is a pathway that links the CPU with memory, input/output devices, and other internal hardware.
782
What is the purpose of a wildcard character, such as `*` or `?`, in a command?
Answer:
Both B and C
Wildcard characters are used to represent one or more characters in a filename. The `*` wildcard matches any number of characters, while the `?` wildcard matches any single character.
783
Which screen shows the name of every user account on the computer?
Answer:
Welcome screen
The Welcome screen in Windows displays all user accounts, allowing selection during login.
784
The ALU (Arithmetic Logical Unit) of a computer receives its operating commands from:
Answer:
Control section
The control unit directs the ALU to perform specific operations by interpreting and sending instructions.
785
Intel and AMD are leading companies in the manufacture of:
Answer:
Processor
Intel and AMD are the two most prominent CPU (central processing unit) manufacturers in personal computers and servers.
786
Everything between the system call interface and the hardware is called:
Answer:
Kernel
The kernel is the core component of an operating system that manages system resources and acts as the central interface between hardware and software.
787
Which is used in OS to implement separation of policy and mechanism?
Answer:
Multi level implementation
Multi-level structures in OS separate what is to be done (policy) from how it is done (mechanism).
788
What is gutter margin?
Answer:
Margin that is added to the binding side of page when printing
The gutter margin is added to the side where the document will be bound, ensuring text isn't lost in the binding.
789
The process of starting a computer is also known as:
Answer:
Booting
Booting is the process of loading the operating system into the main memory of the computer.
790
Belady’s Anomaly is associated with which kind of algorithm?
Answer:
Page Replacement Algorithm
Belady’s Anomaly refers to unusual behavior in some page replacement algorithms in which adding more frames can actually increase page faults.