Sub. code 4281
NEB — GRADE XII
2079
Old Question
Class 12 Computer Science Old Question 2079
The candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Pass Marks : 20
सबै प्रश्नको उत्तर दिनुहोस् । (Attempt All Questions)
This old question paper is for Class 12 Computer Science, 2079 (subject code 4281), carrying full marks of 50 with a pass mark of 20, to be completed within 2 Hours. Model answers are available for questions that have one — reveal them with a free account (a few reveals) or a paid plan (unlimited).
Group A
Rewrite the correct option of each question in your answer sheet.
Which of the following SQL statement is used to DELETE rows from a database table?
DELETE
REMOVE
DROP
CLEAR
A field that is used to uniquely define a particular record in a table is called:
Primary Key
Entity
Relationship
Constraints
What does "MAC" stands for in MAC Address?
Mandatory Access Control
Media Access Control
Micro Access Control
Media Access Certificate
Correct syntax for referring to an external JavaScript:
<script src="myscript.js"></script>
<script href="myscript.js"></script>
<js href="myscript.js"></js>
<js src="myscript.js"></js>
Correct way of defining a variable in PHP:
$variable name = value;
$variable_name = value;
$variable_name = value
$variable name as value;
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
Which feature of OOP is illustrated the code reusability?
Polymorphism
Abstraction
Encapsulation
Inheritance
Which of following is the discovering requirement from a user in the requirement collection process?
Feasibility study
Requirement Elicitation
Requirement Specification
Requirement validation
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
Group B
Short answer question
Differentiate the centralized and distributed database system.
What are the purposes of normalization? Give an example of 2NF.
Write a program to find the factorial of any given number using Javascript.
How do you fetch data from database in PHP and display it in form? Describe.
Compare the OOPs and procedural programming language.
What are the major activities performed to design the software? Describe.
Explain the popular five application areas of AI.
Group C
Long answer question
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.
What is structure? Write a program to input roll, name and age of 5 students and display them properly using structure.
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.
Paper Overview & Analysis
2079
Year
Old Question
Type
50
Full Marks
20
Pass Marks
2 Hours
Duration
16
Question Items
Question Type Breakdown
Group Breakdown
Chapter Breakdown
| DBMS Concept | 2 items | 2 marks |
| Concept of Network and Data Communication | 2 items | 9 marks |
| Web Technology - II (CSS, JavaScript, PHP) | 2 items | 2 marks |
| Programming II | 2 items | 9 marks |
| OOP Concept | 1 item | 1 mark |
| Software Process Model | 1 item | 5 marks |
| Recent Trends in ICT | 1 item | 5 marks |
Chapter breakdown covers 11 of 16 question items on this paper — the rest aren't tagged to a chapter yet.