Sub. code 4281 'D'
NEB — GRADE XII
2082
Old Question
Class 12 Computer Science Old Question 2082
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, 2082 (subject code 4281 'D'), 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
Multiple choice questions.
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)
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 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
Select the invalid variable name in PHP.
$name
$_name
$1name
$name123
Which protocol is used for secure communication over a computer network?
HTTP
FTP
HTTPS
Telnet
The statement int number (int a); is a ...
function call
function definition
function declaration
function execution
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
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
Which type of feasibility study evaluates whether a system can be developed with the available technology?
Operational feasibility
Social feasibility
Technical feasibility
Economical feasibility
Group B
Short answer questions
Write any three differences between DDL and DML. Give examples of each.
What is normalization? Explain 2NF and 3NF.
Write JavaScript code to input any three numbers and find the smallest number among them.
Write a PHP script to connect to a MySQL database.
Write short notes on class and inheritance in OOP with example.
What is Requirement Gathering? Explain different Requirement Gathering methods.
What is AI? Explain application areas of AI in education.
Group C
Long answer questions
What is transmission medium? Explain its major types with advantages and disadvantages.
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.
Paper Overview & Analysis
2082
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 | 3 items | — |
| Recent Trends in ICT | 2 items | — |
| Web Technology - II (CSS, JavaScript, PHP) | 2 items | — |
| Concept of Network and Data Communication | 2 items | — |
| Programming II | 2 items | — |
| OOP Concept | 2 items | — |
| Software Process Model | 2 items | — |
Chapter breakdown covers 15 of 16 question items on this paper — the rest aren't tagged to a chapter yet.