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Explore Class 12 Computer Science past and model questions by chapter, year, marks and question type.
115 questions found
The statement int number (int a); is a ...
function call
function definition
function declaration
function execution
Which protocol is used for secure communication over a computer network?
HTTP
FTP
HTTPS
Telnet
Select the invalid variable name in PHP.
$name
$_name
$1name
$name123
Which control structure in JS (JavaScript) is used to execute a block of code repeatedly based on a given condition?
For Loop
if-else
switch-case
function
Write a C program to read account number, name and address of ten customers and display them using array and structure.
What are the components of a function in C? Describe Call-by-value and Call-by-reference.
Write short notes on class and inheritance in OOP with example.
What is normalization? Explain 2NF and 3NF.
Which type of feasibility study evaluates whether a system can be developed with the available technology?
Operational feasibility
Social feasibility
Technical feasibility
Economical feasibility
In which of the following programming, the emphasis is given on data rather than on procedures?
Procedural programming
Structural programming
Object-oriented programming
Declarative programming
Which of the following is the purpose of using primary key in database?
To uniquely identify a record
To store duplicate record
To backup data
To enhance database size
Which of the following is NOT a type of cloud computing service?
Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Software as a Service (SaaS)
Hardware as a Service (HaaS)
A company needs to modify an existing table by adding a new column for employee email addresses. For this, which SQL command should be used?
CREATE
ALTER
SELECT
UPDATE
Write any three differences between DDL and DML. Give examples of each.
Write a PHP script to connect to a MySQL database.
What is Requirement Gathering? Explain different Requirement Gathering methods.
What is AI? Explain application areas of AI in education.
What is transmission medium? Explain its major types with advantages and disadvantages.
Write JavaScript code to input any three numbers and find the smallest number among them.
Write a C program that uses structures to represent details of five books (title, author, publisher and price) and prints them out.