Computer set 3 MCQs

Practice interactive objective questions for this topic. Select an option to instantly verify your answer and read detailed explanations.

Showing 470 questions
Q.151 What type of software is Windows Defender?
A Antivirus/Antimalware
B Word processor
C Database management system
D Web browser
Discuss / Board
Q.152 In MS Word, which view is best for seeing the document's headings structure and quickly rearranging sections?
A Outline view
B Draft view
C Read Mode
D Web Layout
Discuss / Board
Q.153 In Excel, what does 'Alt + Enter' do within a cell?
A Inserts a line break
B Completes the cell entry
C Opens the Format Cells dialog
D Enters an array formula
Discuss / Board
Q.154 Which of the following is a type of network cable?
A Cat6 Ethernet cable
B HDMI cable
C USB cable
D Power cord
Discuss / Board
Q.155 In MS Word, what does 'Ctrl + Shift + C' do?
A Copy formatting
B Copy text
C Insert a comment
D Clear formatting
Discuss / Board
Q.156 In Excel, what is the function of 'Ctrl + Shift + "' (quote)?
A Copies the value from the cell above into the current cell
B Applies currency format
C Opens the Format Cells dialog
D Toggles formula view
Discuss / Board
Q.157 What is the purpose of the 'sfc /scannow' command?
A Scans and repairs corrupted Windows system files
B Deletes temporary files
C Checks disk for errors
D Lists running processes
Discuss / Board
Q.158 In MS Word, what does the 'Ctrl + 2' shortcut do?
A Sets double line spacing
B Applies heading style 2
C Goes to page 2
D Inserts a page break
Discuss / Board
Q.159 In Excel, which function returns the number of days between two dates?
A DAYS
B DATEDIF
C Subtract the dates directly
D All of the above
Discuss / Board
Q.160 Which type of cyber attack overwhelms a server with traffic to make it unavailable?
A DDoS (Distributed Denial of Service)
B Phishing
C Ransomware
D SQL injection
Discuss / Board
Q.161 In MS Word, what is the function of 'Ctrl + G'?
A Opens the Go To dialog
B Opens the Find dialog
C Opens the Replace dialog
D Goes to the next page
Discuss / Board
Q.162 In Excel, which function converts a text string to a number?
A VALUE
B TEXT
C NUMBERVALUE
D Both A and C
Discuss / Board
Q.163 Which register in the CPU holds the memory address of the next instruction to be fetched?
A Program Counter (PC)
B Instruction Register (IR)
C Memory Address Register (MAR)
D Memory Data Register (MDR)
Discuss / Board
Q.164 What is the primary purpose of the CPU's control unit?
A Directs the flow of data between the CPU, memory, and I/O devices based on instructions
B Performs arithmetic operations
C Stores temporary data
D Caches frequently used data
Discuss / Board
Q.165 In the fetch-decode-execute cycle, what step immediately follows fetching an instruction?
A Decode
B Execute
C Write back
D Store result
Discuss / Board
Q.166 Which CPU component performs logical operations like AND, OR, NOT?
A Arithmetic Logic Unit (ALU)
B Control Unit (CU)
C Floating Point Unit (FPU)
D Cache Memory
Discuss / Board
Q.167 What does the system bus consist of?
A Address bus, data bus, and control bus
B Only address and data lines
C Power and ground lines
D Clock and reset lines only
Discuss / Board
Q.168 Which type of memory is directly accessible by the CPU and volatile?
A RAM
B ROM
C SSD
D Hard disk
Discuss / Board
Q.169 What is the key difference between DRAM and SRAM?
A SRAM uses flip-flops and does not need refresh; DRAM uses capacitors and must be refreshed
B DRAM is faster than SRAM
C SRAM is used for main memory, DRAM for cache
D Both are non-volatile
Discuss / Board
Q.170 Which type of ROM can be programmed only once by the manufacturer?
A Mask ROM
B EPROM
C EEPROM
D Flash ROM
Discuss / Board
Q.171 What is the decimal value of the binary number 101010?
A 42
B 50
C 34
D 48
Discuss / Board
Q.172 Which hexadecimal digit is equivalent to binary 1101?
A D
B C
C E
D A
Discuss / Board
Q.173 The first electronic general-purpose computer was:
A ENIAC
B UNIVAC
C IBM 1401
D Apple I
Discuss / Board
Q.174 Which generation of computers introduced time-sharing operating systems?
A Second generation
B First generation
C Third generation
D Fourth generation
Discuss / Board
Q.175 What does the term 'VLSI' stand for in computer generation context?
A Very Large Scale Integration
B Variable Length System Integration
C Virtual Logic State Integration
D Very Low Scale Integration
Discuss / Board
Q.176 Which type of computer is designed for a single user and is also known as a personal computer?
A Microcomputer
B Minicomputer
C Mainframe
D Supercomputer
Discuss / Board
Q.177 Which component of the motherboard connects the CPU to the memory and expansion slots?
A Chipset
B VRM
C CMOS battery
D BIOS chip
Discuss / Board
Q.178 What is the function of the VRM (Voltage Regulator Module) on a motherboard?
A Converts high voltage from PSU to precise low voltages for CPU and RAM
B Stores BIOS settings
C Provides network connectivity
D Generates clock signals
Discuss / Board
Q.179 Which expansion slot is currently used for high-speed graphics cards?
A PCIe x16
B AGP
C PCI
D ISA
Discuss / Board
Q.180 Which port type provides both power and data over a single cable for monitors and peripherals?
A Thunderbolt 3 (USB-C)
B VGA
C DVI
D Serial port
Discuss / Board

Master Computer set 3 for All Competitive Exams 2026

Practicing Computer set 3 MCQs is one of the most effective ways to prepare for competitive examinations in 2026. This topic-wise question bank contains carefully selected multiple-choice questions designed to strengthen conceptual understanding, improve accuracy, and enhance problem-solving speed. Our collection includes beginner, intermediate, and advanced-level questions frequently asked in JKSSB, SSC, Banking, Railway, Police, Defence, State PSC, and various national-level examinations. Every question is structured to reflect real exam patterns and helps candidates become familiar with objective-type assessment formats. Instant answer verification enables students to identify mistakes immediately and learn the correct approach without wasting valuable preparation time. Regular practice of topic-wise MCQs improves retention, reinforces key concepts, and develops confidence required to perform well under exam pressure. Whether you are revising important concepts, preparing for an upcoming recruitment test, or strengthening weak areas, these practice questions provide a reliable platform for continuous improvement. Consistent participation in MCQ-based learning sessions can significantly increase your chances of achieving higher scores and better ranks in competitive examinations.

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