General MCQs
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Q701.Which SDLC model follows a step-by-step sequential approach?
Correct Answer: B
The Waterfall model is a linear and sequential SDLC approach, where each phase (requirements, design, implementation, testing, deployment) must be completed before the next begins.
Q702.Fixing errors after software release is called?
Correct Answer: C
Corrective maintenance refers to identifying and fixing bugs or errors discovered by users after the software has been released.
Q703.DSA (Stack) follows which principle?
Correct Answer: B
A Stack is a linear data structure that follows the LIFO (Last In, First Out) principle, where elements are added and removed from the same end.
Q704.Queue follows?
Correct Answer: B
A Queue is a data structure that follows the FIFO (First In, First Out) principle, where the first element added is the first one to be removed.
Q705.Binary search works on?
Correct Answer: B
Binary search is an efficient search algorithm, but it requires the data to be sorted in ascending or descending order beforehand.
Q706.In touch typing, which row of keys is called the base position for fingers?
Correct Answer: B
The Home Row (A, S, D, F, J, K, L, ;) is the baseline row where typists rest their fingers in touch typing.
Q707.Optical Fiber System is utilized in _____?
Correct Answer: C
Optical fiber systems are heavily utilized in modern high-speed telecommunications to transmit voice, data, and video signals as light.
Q708.How many function keys are there in the keyboard?
Correct Answer: C
Standard computer keyboards have 12 function keys (labeled F1 through F12) across the top row.
Q709.In which of the following communication mode, each station can both transmit and receive, but not at the same time?
Correct Answer: A
Half-Duplex allows two-way communication, but only one station can transmit at a time (e.g., walkie-talkies).
Q710.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?
Correct Answer: A
The disjoint constraint specifies whether subclasses are disjoint (a superclass member belongs to at most one subclass) or overlapping (can belong to multiple subclasses).
Q711.The characteristics of a suitable set of normalized relations include all of these EXCEPT?
Correct Answer: C
Normalization is a relational database concept. Method overriding is an object-oriented programming concept, not related to database normalization.
Q712.How are real numbers encoded to store in the computer?
Correct Answer: B
Real numbers (fractional numbers) are represented in computers using floating-point notation, typically following the IEEE 754 standard.
Q713.Which cryptocurrency app allows P2P trading for Pakistani users?
Correct Answer: B
Binance P2P is the most popular and widely used P2P trading platform for Pakistani users, allowing trading via local payment methods such as bank transfers, EasyPaisa, and JazzCash.
Q714.The decimal value of binary (1000)2 is _____?
Correct Answer: B
(1000)₂ in decimal is equal to 1×2³ + 0×2² + 0×2¹ + 0×2⁰ = 8.
Q715.Which of the following is a type of technique in which dumb terminals are connected to a central computer system?
Correct Answer: B
Timesharing is a computer technique where multiple dumb terminals are connected to a central computer. Each terminal gets a small time slice of CPU interaction, giving the illusion of simultaneous usage.
Q716.LED stands for _____?
Correct Answer: A
LED stands for Light Emitting Diode, a semiconductor device that emits light when electric current passes through it.
Q717.Which of the following functions is used to sum the values in a range that meet a specific criteria that you specify?
Correct Answer: B
The SUMIF function is used to add values in a specified range based on a given condition or criteria.
Q718.Which of the following is used to build microcomputers?
Correct Answer: C
Microcomputers (like PCs) are built around central processing units (processors) which execute instructions and control the entire system.
Q719.A number or letter that appears slightly below the normal line of text in MS-Word 2016 is called _____?
Correct Answer: A
A Subscript lowers text slightly below the normal baseline (e.g., H₂O), whereas Superscript raises it above (e.g., x²).
Q720.Identify the FALSE statement regarding the Windows Recycle Bin:
Correct Answer: D
Sending files to the Recycle Bin simply moves them to a temporary system folder. They still occupy space on the hard drive until the Recycle Bin is emptied.