💻 Computing Solved MCQs with Answers

Practice 1954 approved 💻 Computing questions with verified answers from the 💾 Computer Science subject for Pakistan exams.

1954 solved MCQs

Which hardware method is used to protect a device?Answer: All of these The virtual assistant developed by Microsoft is ______?Answer: Cortana Which tab helps rearrange data in MS Excel?Answer: Data What is the shortcut key in MS Word to apply 'Change Case'?Answer: Shift + F3 The number system used by computers to store data and perform calculations is ______?Answer: Binary Cin and cout in C++ are handled by which header file?Answer: Iostream In computer system word BOOT is used for?Answer: To start a computer Which of the following describes the relationship between members of the subclasses and indicates whether it is possible for a member of a superclass to be a member of one, or more than one, subclass?Answer: Disjoint constraint The purpose of normalization is to Identify a suitable set of relations that support the data requirements of an enterprise. Followings are the characteristics of a suitable set of relations EXCEPT?Answer: Implementation of a method that depends on the type of the object it is applied to (overriding). A DFA (deterministic finite automata) is defined by a quintuple (5-tuple) as (Q, Σ, δ, q0, F). Where δ = ______?Answer: A transition function that maps Q × Σ --> Q Computers are able to store negative numbers and real numbers in memory, but do so they use encoding schemes along wit the binary numbering system. Negative known as two's complement. In which numbers are encoded using a technique encoding scheme real numbers are encode to store in the computer?Answer: Floating-point notation If we have a function f: A, B, there may exist an inverse function f-1: B→ A, which is defined by the rule f - (b) = a where b = (a). This definition only works if each b ≤ B an image point under f and if there is only ca point a such that of (a) = b. What do the functions or mappings are called?Answer: Bijection Angular is framework of?Answer: JavaScript. Computers for personal use, larger than microcomputers but are not portable?Answer: Desktop IMEI stands for?Answer: International Mobile Equipment Identity CD stands for?Answer: Compact Disk What is the shortcut key for a double line spacing?Answer: Ctrl + 2 The component responsible for performing arithmetic and logical operations in the CPU is called ______?Answer: ALU Windows Key + F shortcut key is used to?Answer: Open Search (Find files/folders) Address of information is registered in?Answer: Memory Address Register First page of browser is known as ?Answer: Homepage Page numbers can be inserted from menu bar using ____?Answer: Insert menu Binary number system has base?Answer: 2 Which data structure is used in recursion?Answer: Stack Which one is an Operating System?Answer: Windows 2000 The keys used to lock the keyboard____:Answer: Windows Logo Key + L Which of the following is not a system tool?Answer: Virus scanning Essay: Advantages of Artificial Intelligence (AI) (Urdu and English)Answer: Artificial Intelligence improves efficiency, automation, and decision-making in various fields. What is the full form of QR?Answer: Quick Response Essays: Do you think computers are becoming superior to human brains? (Urdu and English)Answer: Computers are powerful tools, but they cannot fully replace human intelligence, creativity, emotions, and judgment.