Here are 20 SS3 second-term Computer Science questions with options and answers:
Question: Which data structure follows the Last In, First Out (LIFO) principle?
A) Queue
B) Stack
C) Linked List
D) Array
Answer: B) Stack
Question: What is the purpose of the “try” and “except” blocks in Python?
A) Define a function
B) Implement a loop
C) Handle exceptions and errors
D) Import external libraries
Answer: C) Handle exceptions and errors
Question: What does API stand for in the context of software development?
A) Application Programming Interface
B) Advanced Program Integration
C) Automated Programming Interface
D) Application Program Interface
Answer: A) Application Programming Interface
Question: Which sorting algorithm has a time complexity of O(n log n) on average?
A) Bubble Sort
B) QuickSort
C) Insertion Sort
D) Selection Sort
Answer: B) QuickSort
Question: What is the purpose of the “git” version control system?
A) Manage databases
B) Track changes in source code
C) Execute SQL queries
D) Design graphical user interfaces
Answer: B) Track changes in source code
Question: What does MVC stand for in the context of software architecture?
A) Model-View-Controller
B) Main-View-Controller
C) Modular-View-Component
D) Multiple-View-Controller
Answer: A) Model-View-Controller
Question: In object-oriented programming, what is encapsulation?
A) Hiding the implementation details of an object
B) Creating multiple instances of a class
C) Inheriting properties from a superclass
D) Initializing variables in a constructor
Answer: A) Hiding the implementation details of an object
Question: What is the purpose of the “virtual memory” in a computer system?
A) Increase RAM capacity
B) Create virtual machines
C) Extend storage capacity
D) Simulate additional RAM using storage
Answer: D) Simulate additional RAM using storage
Question: Which of the following is a key characteristic of a NoSQL database?
A) Structured schema
B) Relational tables
C) ACID transactions
D) Flexible schema
Answer: D) Flexible schema
Question: What is the primary purpose of the “this” keyword in object-oriented programming?
A) Refer to the current instance of a class
B) Create a new object
C) Access global variables
D) Invoke a static method
Answer: A) Refer to the current instance of a class
Question: Which encryption algorithm is commonly used for securing internet communication?
A) DES (Data Encryption Standard)
B) AES (Advanced Encryption Standard)
C) RSA (Rivest–Shamir–Adleman)
D) SHA (Secure Hash Algorithm)
Answer: B) AES (Advanced Encryption Standard)
Question: What is the purpose of the SQL JOIN operation in database queries?
A) Combine rows from different tables
B) Filter rows based on a condition
C) Sort data in ascending order
D) Update existing records
Answer: A) Combine rows from different tables
Question: What is the role of an IP address in computer networking?
A) Identify a device on the internet
B) Execute programming code
C) Determine the screen resolution
D) Manage file permissions
Answer: A) Identify a device on the internet
Question: Which of the following is an example of a one-way communication protocol?
A) HTTP (Hypertext Transfer Protocol)
B) FTP (File Transfer Protocol)
C) UDP (User Datagram Protocol)
D) TCP (Transmission Control Protocol)
Answer: C) UDP (User Datagram Protocol)
Question: What is the purpose of a constructor in object-oriented programming?
A) Modify existing objects
B) Create and initialize objects
C) Define class attributes
D) Implement conditional statements
Answer: B) Create and initialize objects
Question: Which of the following is a benefit of using cloud computing?
A) Limited scalability
B) High upfront costs
C) On-demand resource allocation
D) Offline data access only
Answer: C) On-demand resource allocation
Question: What is the primary function of the Domain Name System (DNS)?
A) Encrypt data transmission
B) Translate domain names to IP addresses
C) Manage network security
D) Control access to a website
Answer: B) Translate domain names to IP addresses
Question: Which SQL statement is used to retrieve data from a database?
A) INSERT
B) DELETE
C) SELECT
D) UPDATE
Answer: C) SELECT
Question: What does the term “refactoring” mean in software development?
A) Writing new code from scratch
B) Optimizing existing code without changing its behavior
C) Debugging and fixing errors
D) Testing software for vulnerabilities
Answer: B) Optimizing existing code without changing its behavior
Question: In networking, what does the acronym VPN stand for?
A) Virtual Personal Network
B) Very Private Network
C) Virtual Private Network
D) Verified Personal Network
Answer: C) Virtual Private Network.
FAQs
What topics are commonly covered in SS3 Second Term Computer Science past questions and answers?
SS3 Second Term Computer Science past questions usually cover topics such as database management systems, programming concepts, number base systems, logic gates, networking, data representation, file management, and computer ethics. Questions may test students’ understanding of theory, practical applications, and problem-solving skills. Reviewing past questions helps students identify frequently repeated topics and understand the examination pattern.
Why are SS3 Second Term Computer Science past questions important for exam preparation?
Past questions are important because they help students become familiar with the exam format, marking scheme, and types of questions that may appear. They also help students assess their strengths and weaknesses, improve time management, and gain confidence before the examination. Practicing with past questions increases the chances of scoring higher marks.
How can students effectively study with SS3 Second Term Computer Science past questions and answers?
Students can study effectively by first revising their notes and textbooks, then attempting past questions without checking the answers. After completing the questions, they should compare their responses with the provided answers to identify mistakes. It is also helpful to focus more on repeated questions and practice calculations or programming examples multiple times to ensure full understanding.
Where can students get SS3 Second Term Computer Science past questions and answers?
Students can obtain past questions and answers from their school teachers, classmates, school libraries, educational websites, and bookstores that sell WAEC and NECO preparatory materials. Some schools also provide compiled past question booklets to help students prepare adequately for their final examinations.
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