Home ยป Past Questions ยป Computer-studies
1

What does the ‘%’ operator represent in programming languages?

 

  • A. Assignment
  • B. Modulus
  • C. Concatenation
  • D. Exponentiation
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2

What is the primary purpose of using a query in MS Access?

 

  • A. To visually represent data trends and relationships through charts and graphs.
  • B. To define the overall structure of the tables and their relationships within the database.
  • C. To retrieve specific data from one or more tables based on defined criteria, allowing for filtering and sorting of information.
  • D. To create a user-friendly interface for entering editing and displaying data in the database.
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3

When data is organized, processed, and presented in a meaningful context, it becomes:

 

  • A. Information
  • B. Structured Query Language
  • C. Metadata
  • D. Fact
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4

What is the advantage of using cell references in formulas compared to entering constant values?
 

  • A. Cell references improve formula accuracy by reducing manual data entry.
  • B. Cell references make formulas less flexible and adaptable to changes.
  • C. Cell references make formulas more complex and difficult to understand.
  • D. Cell references are only necessary for complex formulas with multiple functions.
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5

What are some common criteria used to classify computer files?

 

  • A. File type and content.
  • B. Operating system compatibility and hardware requirements.
  • C. File size and creation date only.
  • D. Font style and color used within the document itself.
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6

What is the benefit of using a bulleted or numbered list in your document?

 

  • A. To automatically insert page breaks after each list item, forcing them onto separate pages.
  • B. To automatically change the font style and size of the text within the list.
  • C. To add decorative borders and background colors to specific sections of your document.
  • D. To highlight important points and improve readability by visually separating items.
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7

What is the key innovation of the Analytical Engine?
 

 

 

  • A. It utilized a steam-powered mechanism for calculations.
  • B. It introduced the concept of a central pmcessing unit (CPU) for calculations.
  • C. It incorporated the idea of a memory unit to store data and programs.
  • D. It employed punch cards for inputting instructions and data.
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8

Which statement is used to skip the execution of the current iteration and start the next iteration in a loop?

 

  • A. Jump statement
  • B. Skip statement
  • C. Continue statement
  • D. Next statement
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9

What does SSD stand for, and what is its primary advantage?

 

  • A. Super Speed Disk, larger capacity
  • B. Secure Storage Device, better security
  • C. Simple Storage Disk, ease of use
  • D. Solid State Drive, faster speed
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10

What is the function of the motherboard in a computer system?

 

  • A. Store data
  • B. Connect all hardware components
  • C. Perform calculations
  • D. Provide internet access
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11

Which of the following data types is used to represent textual data in computers?

 

  • A. Float
  • B. Integer
  • C. String
  • D. Boolean
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12

What distinguishes open-source software from proprietary software?

 

  • A. Open source software is free, while proprietary software requires purchase.
  • B. Open-source software is more secure than proprietary software.
  • C. Open-source software is more secure than proprietary software.
  • D. Open source software allows modification and redistribution, while proprietary software does not.
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13

What is the main purpose of device drivers?
 

 

 

  • A. Manage hardware devices
  • B. Run applications
  • C. Provide internet security
  • D. Run applications
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14

Which database organization uses parent-child relationships to organize data in a tree-like structure?

 

  • A. Relational
  • B. Network
  • C. Hierarchical
  • D. Object oriented
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15

Which of the following is NOT a characteristic of interpreters?

 

  • A. They are generally slower than compilers.
  • B. They provide immediate error detection.
  • C. They execute code line by line.
  • D. They translate code into machine code at once
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16

Which type of computer would a small business most likely use for everyday tasks?

 

  • A. Minicomputers
  • B. Mainframe computers
  • C. Microcomputers
  • D. Supercomputers
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17

What is the term for an email scam that tries to trick people into giving out personal information?

 

  • A. Cracking
  • B. Spoofing
  • C. Hacking
  • D. Phishing
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18

Which type of attack floods a network or server with excessive traffic to make it unavailable to legitimate users?
 

  • A. Man-in-the-middle attack
  • B. Phishing attack
  • C. SQL injection attack
  • D. Denial-of-service attack
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19

What is the main advantage of using hexadecimal over binary?

 

  • A. Compatible with octal
  • B. Easier to read and write
  • C. Provides higher precision
  • D. Requires more digits
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20

Which type of software acts as an intermediary between hardware and applications?

 

  • A. System software
  • B. Application software
  • C. Firmware
  • D. Middleware
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21

What is the advantage of using cell references in formulas compared to entering constant values?

 

  • A. Cell references make formulas more complex and difficult to understand.
  • B. Cell references are only necessary for complex formulas with multiple functions.
  • C. Cell references are only necessary for complex formulas with multiple functions.
  • D. Cell references improve formula accuracy by reducing manual data entry.
View Answer & Discuss JAMB 2024