Computer Science Class II PUC Quiz

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Questions and Answers

What is another name for a derived class?

Sub class (correct)

Base class

Super class

Main class

What is a distinct header for each column of a table called?

Attribute (correct)

Tuple

Domain

Record

Which of the following is an unsupported C++ expression with respect to pointer ptr?

ptr * 100 (correct)

ptr++

ptr - 100

ptr + 80

Which command is a part of Data Query Language (DQL)?

SELECT Signup and view all the answers

What is the correct expansion of TCP?

Transmission Control Protocol Signup and view all the answers

Which of the following is not classified as a web browser?

Telnet Signup and view all the answers

Which of the following is an example of Full Duplex communication mode?

Telephone Signup and view all the answers

Who is credited with the invention of HTML?

Tim Berners Lee Signup and view all the answers

Which port transfers eight bits of data at a time?

Parallel port Signup and view all the answers

According to the idempotent law, which statement is true?

$X ullet X = X$ Signup and view all the answers

If an array is a collection of homogenous elements, which statement is correct?

A is True and B is False Signup and view all the answers

Which of the following statements about function overloading are correct?

i), iii) and iv) are correct Signup and view all the answers

What type of error is present in the given program segment regarding class declaration?

Error due to semicolon missing at the data member declaration line Signup and view all the answers

Which constructor is defined as one that does not accept any arguments?

Default constructor Signup and view all the answers

What is a characteristic of the PS/2 port?

Primarily for keyboards and mice Signup and view all the answers

In the context of data structures, what statement is true about arrays?

Arrays always require a fixed size Signup and view all the answers

Which of the following is an example of a non-primitive data structure?

Array Signup and view all the answers

What is a pointer in C++?

A variable that stores a memory address Signup and view all the answers

Which operation is NOT typically performed on binary files in C++?

Compiling source code Signup and view all the answers

Which of the following best describes proprietary software?

Software owned by an individual or company that restricts usage Signup and view all the answers

What HTML tag is used to insert an image in a webpage?

<img> Signup and view all the answers

What type of inheritance allows a class to inherit from multiple classes?

Multiple Inheritance Signup and view all the answers

Which of the following is NOT a basic operation performed on a queue?

Delete Signup and view all the answers

What is the primary function of a destructor in a C++ class?

To release resources when an object goes out of scope Signup and view all the answers

Study Notes

Computer Science Exam Notes - Class II PUC

Parallel Port: Transfers data in parallel, sending 8 bits simultaneously, providing faster data transfer speeds compared to serial ports.
Idempotent Law: A logic law stating that repeating an operation (e.g., ANDing a value with itself) results in the same output.
Array: Homogeneous data structure, meaning it stores elements of the same data type, and is considered linear since elements are accessed sequentially.
Constructor: Special function invoked automatically when an object of a class is created, initializing the object’s data members. Constructors can be parameterized to accept input values.
Derived Class: Also known as a subclass, it inherits properties and functions from a base (super) class, enabling code reusability and polymorphism.
Pointer: Variable storing the memory address of another variable. Allows direct manipulation of data stored in memory.
Attribute: Distinct header identifying each column in a table, representing a specific characteristic or property of the stored data.
Data Abstraction: Hides implementation details, exposing only essential functionalities to users, promoting modularity and simplifying interaction with complex systems.
Motherboard: Main circuit board within a computer system, housing vital components like the CPU, RAM, and expansion slots.
Non-primitive Data Structure: Data structure built upon primitive data types (int, char, float) to store complex data, with examples including arrays, linked lists, and trees.
Queue: Abstract data structure adhering to the First-In, First-Out (FIFO) principle, with operations like enqueue (adding to the rear), dequeue (removing from the front), and peek (viewing the front element).
Object-Oriented Programming (OOP): Programming paradigm emphasizing data abstraction, encapsulation, inheritance, and polymorphism, enabling code reusability and modularity.
Friend Function: Function granted access to private and protected members of a class, outside the class itself, violating information hiding but sometimes required for specific operations.
Destructor: Special function automatically called when an object of a class goes out of scope, performing cleanup operations and releasing resources allocated to the object.
Inheritance: Mechanism allowing a derived class to inherit attributes and methods from its base class, fostering code reuse and creating hierarchies of related classes.
Single Level Inheritance: Derived class directly inherits features from a single base class.
Multilevel Inheritance: Derived class inherits features from another derived class, which itself inherited from a base class.
SQL (Structured Query Language): Special-purpose programming language designed for managing and manipulating data in relational databases.
DQL (Data Query Language): Subset of SQL responsible for retrieving data from databases.
Full Duplex Communication: Communication mode where both parties can transmit and receive information simultaneously, enabling bidirectional and efficient data transfer.

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Description

Test your knowledge on fundamental computer science concepts such as parallel ports, array structures, and object-oriented programming principles. This quiz will cover essential topics for Class II PUC students, including constructors, derived classes, and pointers. Get ready to reinforce your understanding of these key concepts!