JAMB CBT PRACTICE TEST

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BIOLOGY LESSON NOTE ON HUMAN KIDNEY

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Lesson Note on the Human Kidney Topic: The Human Kidney Duration: 40 minutes Specific Objectives: By the end of the lesson, students should be able to: Define the kidney and state its location in the human body. Identify and describe the structure and functions of the kidney. Explain the processes involved in urine formation (filtration, reabsorption, and secretion). Describe how the kidney contributes to homeostasis. Identify common kidney-related diseases and how to prevent them. Evaluate the importance of maintaining kidney health. Lesson Content: 1. Introduction to the Human Kidney The kidneys are vital organs in the human body responsible for filtering waste from the blood and regulating water and electrolyte balance. They are part of the excretory system and play a crucial role in homeostasis. Location: The kidneys are located in the abdominal cavity, on either side of the spine, just below the rib cage. Each kidney is bean-shaped and about the size of a fi...
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WAEC Data Processing Past Questions and Answers (Objective Practice)

 

Introduction

Data Processing is a WAEC subject that deals with the collection, storage, retrieval, and analysis of data using computers and other digital tools. It introduces students to computer systems, software, databases, internet usage, and information processing. Success in Data Processing requires understanding basic computer concepts and regular practice of objective questions. This post provides WAEC-standard questions and answers to help students prepare effectively.

OBJECTIVE QUESTIONS

Instruction: Choose the correct option A–D.

1–20: Basic Computer Concepts

  1. A computer is
    A. a human B. an electronic device that processes data C. a calculator only D. a machine for typing only
    Answer: B

  2. Data refers to
    A. processed information B. raw facts and figures C. programs only D. hardware
    Answer: B

  3. Information is
    A. raw data B. processed data C. hardware D. software only
    Answer: B

  4. The brain of the computer is
    A. monitor B. CPU C. keyboard D. printer
    Answer: B

  5. CPU stands for
    A. Central Processing Unit B. Computer Personal Unit C. Central Print Unit D. Control Processing User
    Answer: A

  6. The input device is
    A. monitor B. keyboard C. speaker D. printer
    Answer: B

  7. The output device is
    A. keyboard B. mouse C. monitor D. scanner
    Answer: C

  8. Storage device is used to
    A. input data B. store data C. print data D. delete data
    Answer: B

  9. Example of storage device is
    A. keyboard B. hard disk C. mouse D. scanner
    Answer: B

  10. RAM means
    A. Random Access Memory B. Read All Memory C. Run Access Machine D. Remote Access Memory
    Answer: A

  11. ROM means
    A. Read Only Memory B. Random Output Memory C. Run Only Machine D. Read Output Memory
    Answer: A

  12. Software is
    A. physical parts B. programs that run on computer C. wires D. hardware only
    Answer: B

  13. Hardware refers to
    A. programs B. physical parts of computer C. internet D. data
    Answer: B

  14. Operating system is
    A. hardware B. system software C. input device D. output device
    Answer: B

  15. Example of operating system is
    A. MS Word B. Windows C. Excel D. PowerPoint
    Answer: B

  16. Application software includes
    A. Windows B. MS Word C. BIOS D. CPU
    Answer: B

  17. Computer works based on
    A. emotion B. instruction C. noise D. electricity only
    Answer: B

  18. A byte is
    A. 1 bit B. 8 bits C. 16 bits D. 32 bits
    Answer: B

  19. A bit is
    A. binary digit B. decimal number C. file D. program
    Answer: A

  20. Binary system uses
    A. 0 and 1 B. 1–9 C. A–Z D. symbols only
    Answer: A

21–40: Computer Operations & Devices

  1. Keyboard is used for
    A. printing B. inputting data C. storing data D. deleting files
    Answer: B

  2. Mouse is used to
    A. type B. point and click C. print D. store
    Answer: B

  3. Scanner is used to
    A. destroy files B. convert paper to digital form C. print documents D. type letters
    Answer: B

  4. Printer produces
    A. input B. hard copy output C. software D. memory
    Answer: B

  5. Hard copy is
    A. soft file B. printed document C. program D. data only
    Answer: B

  6. Soft copy is
    A. printed paper B. electronic document C. book D. letter
    Answer: B

  7. A computer network is
    A. one computer B. connected computers C. printer only D. software only
    Answer: B

  8. Internet is
    A. local machine B. global network of computers C. printer D. CPU
    Answer: B

  9. Web browser is used to
    A. play music B. access websites C. print D. store data
    Answer: B

  10. Example of browser is
    A. Chrome B. CPU C. RAM D. Windows
    Answer: A

  11. URL stands for
    A. Uniform Resource Locator B. Unified Record Link C. User Resource Line D. Universal Remote Link
    Answer: A

  12. Email is used for
    A. farming B. sending messages electronically C. printing D. drawing
    Answer: B

  13. Password is used for
    A. decoration B. security C. printing D. storage
    Answer: B

  14. Antivirus software is used to
    A. create viruses B. protect computer from viruses C. delete hardware D. increase size
    Answer: B

  15. Virus is
    A. useful program B. harmful software C. hardware D. input device
    Answer: B

  16. Spreadsheet software is used for
    A. drawing B. calculations and tables C. browsing D. typing only
    Answer: B

  17. Example of spreadsheet software is
    A. MS Excel B. MS Word C. Paint D. Chrome
    Answer: A

  18. Word processing software is used for
    A. typing documents B. browsing C. gaming D. networking
    Answer: A

  19. Example of word processor is
    A. MS Word B. Excel C. CPU D. RAM
    Answer: A

  20. Database is used for
    A. storing organized data B. drawing C. printing D. browsing only
    Answer: A

41–60: Data Management & ICT

  1. DBMS stands for
    A. Data Base Management System B. Digital Binary Machine System C. Data Backup Memory System D. Direct Base Module System
    Answer: A

  2. Primary key is used to
    A. delete data B. uniquely identify records C. print files D. store images
    Answer: B

  3. Record is
    A. collection of fields B. single letter C. program D. hardware
    Answer: A

  4. Field is
    A. complete file B. single data item C. software D. CPU
    Answer: B

  5. File is
    A. collection of records B. one word C. device D. hardware
    Answer: A

  6. Data processing cycle includes
    A. input, processing, output B. write, delete, print C. start, stop, pause D. open, close, save
    Answer: A

  7. Input means
    A. receiving data B. processing data C. storing data D. deleting data
    Answer: A

  8. Output means
    A. sending processed data B. entering data C. storing data D. copying data
    Answer: A

  9. Processing is done by
    A. keyboard B. CPU C. printer D. scanner
    Answer: B

  10. ALU stands for
    A. Arithmetic Logic Unit B. Active Logic Unit C. Auto Link Unit D. Arithmetic Load Unit
    Answer: A

  1. Control Unit controls
    A. output B. all computer operations C. storage only D. printing only
    Answer: B

  2. Memory stores
    A. food B. data and instructions C. electricity D. water
    Answer: B

  3. Secondary storage is
    A. RAM B. hard disk C. CPU D. register
    Answer: B

  4. Pen drive is
    A. input device B. storage device C. output device D. software
    Answer: B

  5. CD-ROM is
    A. storage device B. processor C. software D. input device
    Answer: A

  6. Cloud computing allows
    A. offline storage only B. online storage and access C. no storage D. hardware only
    Answer: B

  7. ICT means
    A. Internet Computer Technology B. Information and Communication Technology C. Internal Control Tool D. Integrated Computer Task
    Answer: B

  8. One advantage of ICT is
    A. slower communication B. faster communication C. no communication D. no data
    Answer: B

  9. Computer ethics involves
    A. misuse of data B. responsible use of computers C. hacking only D. virus creation
    Answer: B

  10. Cybercrime is
    A. legal activity B. illegal activity on the internet C. farming D. printing
    Answer: B

61–100: Advanced Concepts & Applications

  1. Spreadsheet rows are labeled with
    A. numbers B. letters C. symbols D. colors
    Answer: A

  2. Columns in spreadsheet are labeled with
    A. numbers B. letters C. shapes D. codes
    Answer: B

  3. Formula in Excel begins with
    A. + B. = C. - D. *
    Answer: B

  4. Function in Excel is
    A. manual calculation B. pre-defined formula C. virus D. file
    Answer: B

  5. Data validation ensures
    A. errors B. correct data entry C. deletion D. printing
    Answer: B

  6. Sorting means
    A. deleting data B. arranging data C. printing data D. hiding data
    Answer: B

  7. Filtering means
    A. hiding all data B. displaying selected data C. deleting files D. copying files
    Answer: B

  8. Backup means
    A. deleting files B. making copies of data C. printing only D. storing virus
    Answer: B

  9. Hardware failure refers to
    A. software error B. physical damage C. internet speed D. typing error
    Answer: B

  10. Software failure refers to
    A. hardware damage B. program error C. screen break D. keyboard issue
    Answer: B

  11. Information security protects
    A. data B. food C. water D. land
    Answer: A

  12. Firewall is used to
    A. cook food B. block unauthorized access C. print files D. store data
    Answer: B

  13. Hacking is
    A. legal access B. unauthorized access C. typing D. printing
    Answer: B

  14. E-commerce is
    A. farming B. buying and selling online C. mining D. teaching
    Answer: B

  15. Online payment uses
    A. cash only B. electronic systems C. paper only D. land
    Answer: B

  16. Social media is used for
    A. communication B. farming C. mining D. printing
    Answer: A

  17. One example of social media is
    A. Facebook B. CPU C. RAM D. Excel
    Answer: A

  18. ICT improves
    A. communication B. confusion C. delay D. ignorance
    Answer: A

  19. Computer literacy means
    A. ignorance of computers B. ability to use computers C. destroying computers D. avoiding ICT
    Answer: B

  20. Data accuracy means
    A. wrong data B. correct data C. fake data D. deleted data
    Answer: B

  21. Data integrity means
    A. data corruption B. accuracy and consistency of data C. deletion D. printing
    Answer: B

  22. System software manages
    A. hardware and applications B. food C. farming D. trade
    Answer: A

  23. Application software performs
    A. specific tasks B. hardware repair C. electricity supply D. farming
    Answer: A

  24. Operating system controls
    A. computer resources B. weather C. farming D. trade
    Answer: A

  25. BIOS is
    A. Basic Input Output System B. Binary Internet Operating System C. Basic Internal Output Software D. Backup Input Output System
    Answer: A

  26. ROM is
    A. volatile memory B. non-volatile memory C. external storage D. software
    Answer: B

  27. RAM is
    A. permanent memory B. temporary memory C. external device D. software
    Answer: B

  28. Volatile memory loses data when
    A. power is off B. power is on C. typing starts D. printing starts
    Answer: A

  29. Non-volatile memory retains data when
    A. power is off B. power is on C. system restarts only D. printing starts
    Answer: A

  30. Computer hardware includes
    A. programs B. physical components C. data D. internet
    Answer: B

  31. Software development involves
    A. coding B. farming C. trading D. mining
    Answer: A

  32. Programming language is used to
    A. cook food B. write instructions for computer C. print D. store data
    Answer: B

  33. Example of programming language is
    A. Python B. RAM C. CPU D. Excel
    Answer: A

  34. Algorithm is
    A. computer hardware B. step-by-step solution C. virus D. file
    Answer: B

  35. Flowchart is
    A. diagram of algorithm B. hardware C. software D. virus
    Answer: A

  36. Data security prevents
    A. loss and theft B. learning C. printing D. typing
    Answer: A

  37. Encryption is used to
    A. protect data B. delete data C. print data D. share openly
    Answer: A

  38. Backup storage helps in
    A. data loss prevention B. data destruction C. hacking D. printing
    Answer: A

  39. ICT is important in
    A. modern communication B. farming only C. mining only D. war only
    Answer: A

  40. Data processing improves
    A. efficiency and decision making B. confusion C. ignorance D. delay
    Answer: A

EXAM SUCCESS TIPS

  • Understand basic computer terms (hardware/software/data)
  • Practice spreadsheet operations regularly
  • Learn DBMS and database concepts
  • Master input, process, output cycle
  • Study internet and networking basics
  • Know ICT security and cybercrime
  • Practice past WAEC CBT questions
  • Revise computer devices and uses
  • Understand algorithms and flowcharts
  • Stay consistent with daily revision

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