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Explore Class 12 Computer Science past and model questions by chapter, year, marks and question type.
115 questions found
What devices are detecting and responding to changes in an environment that are embedded in smart phones and an integral part of the Internet of Things (IoT)?
Wi-Fi
Barcode
RFID
Sensors
What are the purposes of normalization? Give an example of 2NF.
Compare the OOPs and procedural programming language.
How do you fetch data from database in PHP and display it in form? Describe.
Explain the popular five application areas of AI.
Write a C program to enter ID, employee name, name and post of the employee and store them in a data file named "emp.txt". Display each record on the screen in an appropriate format.
What does "MAC" stands for in MAC Address?
Mandatory Access Control
Media Access Control
Micro Access Control
Media Access Certificate
Compare the star and ring topology with pros and cons. Which of data communication cable is more appropriate to design the local area network? Describe.
Which of the following SQL statement is used to DELETE rows from a database table?
DELETE
REMOVE
DROP
CLEAR
Correct syntax for referring to an external JavaScript:
Differentiate the centralized and distributed database system.
What is structure? Write a program to input roll, name and age of 5 students and display them properly using structure.
A field that is used to uniquely define a particular record in a table is called:
Primary Key
Entity
Relationship
Constraints
What is the output of C program?
void main(){
int b = 25;
// b memory location = 1234;
int *p; p = &b; printf("%d %d", &b, p);
}
25 25
1234 1234
25
1234 25
Correct way of defining a variable in PHP:
$variable name = value;
$variable_name = value;
$variable_name = value
$variable name as value;
Which feature of OOP is illustrated the code reusability?
Polymorphism
Abstraction
Encapsulation
Inheritance
In which normal form of database, atomicity is introduced?
First
Second
Third
Fourth
How can you connect a database with PHP? Demonstrate with an example.
Which type of database system (centralized or distributed) is mostly preferred by financial institutions like a bank? Give any four suitable reasons
Which of the following feasibility study is concerned with cost benefit analysis?
Technical feasibility
Economic feasibility
Operational feasibility
Schedule feasibility