400 Computer Awareness MCQ Set-4
Q76. SMTP, FTP, and DNS are applications of the ___________ layer.
A. Application
B. Transport
C. Network
D. Data Link
Answer – A. Application
Explanation-
Q77. Which command is used to select the whole document?
A. Ctrl+A
B. Ctrl+C
C. Ctrl+V
D. Ctrl+X
Answer – A. Ctrl+A
Explanation-
Q78. COBOL is an acronym for _________?
A. Common Business-Oriented Language
B. Computer Operations and Binary Output Language
C. Component Object-Based Language
D. Control-Oriented Basic Language
Answer – A. Common Business-Oriented Language
Explanation-
Q79. The ability of an OS to run more than one application at a time is called?
A. Multiprocessing
B. Multithreading
C. Multitasking
D. Multi-user
Answer – C. Multitasking
Explanation-
Q80. What is the function key to display the “Save As” box?
A. F1
B. F2
C. F10
D. F12
Answer – D. F12
Explanation-
Q81. Full form of NOS?
A. Network Operating System
B. National Operating System
C. New Operating System
D. Networked Office System
Answer – A. Network Operating System
Explanation-
Q82. Something which has easily understood instructions is said to be __?
A. Analog Data
B. Digital Data
C. Machine Language
D. User-Friendly
Answer – D. User-Friendly
Explanation-
Q83. A modem is connected to a __?
A. Telephone Line
B. Power Outlet
C. Ethernet Cable
D. USB Port
Answer – A. Telephone Line
Explanation-
Q84. The refresh rate of a monitor is measured in _________?
A. Pixels
B. Inches
C. Hertz
D. Frames per second
Answer – C. Hertz
Explanation-
Q85. What was the chief component of the first-generation computer?
A. Transistor
B. Vacuum tube & Valves
C. Integrated circuit
D. Microprocessor
Answer – B. Vacuum tube & Valves
Explanation-
Q86. Name the Father of the Computer Mouse.
A. Bill Gates
B. Steve Jobs
C. Larry Page
D. Douglas Engelbart
Answer – D. Douglas Engelbart
Explanation-
Q87. A program that performs a useful task while simultaneously allowing destructive acts is __?
A. Virus
B. Trojan Horse
C. Spyware
D. Malware
Answer – B. Trojan Horse
Explanation-
Q88. The geometric arrangement of devices on the network is called __________?
A. Architecture
B. Layout
C. Design
D. Topology
Answer – D. Topology
Explanation-
Q89. The basic goal of a computer process is to convert data into __?
A. Knowledge
B. Wisdom
C. Information
D. Intelligence
Answer – C. Information
Explanation-
Q90. Where are the CPU and memory located?
A. Monitor
B. Keyboard
C. Motherboard
D. Hard disk
Answer – C. Motherboard
Explanation-
Q91. Where is BIOS stored?
A. RAM
B. Hard disk
C. Flash Memory Chip
D. Optical drive
Answer – C. Flash Memory Chip
Explanation-
Q92. IP address version 4 is in which format?
A. 16-bit
B. 32-bit
C. 64-bit
D. 128-bit
Answer – B. 32-bit
Explanation-
Q93. Who was the founder of Bluetooth?
A. Bill Gates
B. Steve Jobs
C. Ericsson
D. Mark Zuckerberg
Answer –C. Ericsson
Explanation-
Q94. What kind of operations can a computer carry out?
A. Logical operations only
B. Arithmetic operations only
C. Both arithmetic and logical operations
D. None of the above
Answer – C. Both arithmetic and logical operations
Explanation-
Q95. Modern computers follow a generalized set of instructions to perform any function. What are these instructions better known as?
A. Programs
B. Algorithms
C. Functions
D. Operations
Answer – A. Programs
Explanation-
Q96. When were the first digital electronic calculating machines developed?
A. During World War I
B. During World War II
C. During the Cold War
D. During the Space Age
Answer – B. During World War II
Explanation-
Q97. Which of the following is the processing unit of the computer?
A. RAM
B. ROM
C. CPU
D. HDD
Answer – C. CPU
Explanation-
Q98. Which part of the computer carries out the arithmetic and logical operations?
A. ALU (Arithmetic Logic Unit)
B. Control Unit
C. RAM (Random Access Memory)
D. CPU (Central Processing Unit)
Answer – A. ALU (Arithmetic Logic Unit)
Explanation-
Q99. Which of the following are part of the Logical Operations of the computer?
A. Addition and Subtraction
B. Multiplication and Division
C. Greater Than and Less Than
D. All of the above
Answer – C. Greater Than and Less Than
Explanation-
Q100. Which of the following comprises the input devices?
A. Keyboard and Mouse
B. Monitor and Printer
C. Scanner and Speakers
D. Hard disk and CD-ROM
Answer – A. Keyboard and Mouse
Explanation-
