← Class 12 Board Exam (HSC)
Tamil Nadu State Board · Computer Applications

TAMIL NADU STATE BOARD CLASS 12 COMPUTER APPLICATIONS 2025

2025 · 33 questions · First 10 Solutions Free
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Q1 mcq 1 mark
__________ has five major components like text, images, sound, video and animation.
a.
Master item
b.
Multimedia Correct Answer
c.
Multi-word
d.
Master page
Step-by-Step AI Explanation
Verified Method
Multimedia has five major components: text, images, sound, video, and animation. The other options are not correct because a master item or master page are document-related terms, and multi-word is not a standard term for these media components.
Q2 mcq 1 mark
A __________ is used for magnifying the particular portion of the area.
a.
Zoom tool Correct Answer
b.
Text tool
c.
Hand tool
d.
Line tool
Step-by-Step AI Explanation
Verified Method
The Zoom tool is used to magnify a particular portion of the area. The Text tool is for inserting or editing text, the Hand tool is used to move the view of the image/canvas, and the Line tool is used to draw lines.
Q3 mcq 1 mark
To select an entire document using the keyboard, press __________.
a.
Ctrl+C
b.
Ctrl+A Correct Answer
c.
Ctrl+D
d.
Ctrl+B
Step-by-Step AI Explanation
Verified Method
Ctrl+A is the keyboard shortcut used to select the entire document. Ctrl+C copies selected content, Ctrl+D is not used for selecting all, and Ctrl+B usually means bold formatting.
Q4 mcq 1 mark
Which operator is called β€œidentical” ?
a.
=== Correct Answer
b.
=
c.
<>
d.
==
Step-by-Step AI Explanation
Verified Method
The identical operator in PHP is ===. It checks both value and type. The symbol = is assignment, <> is not equal, and == is the equality operator that checks only value.
Q5 mcq 1 mark
How many types of arrays are there in PHP ?
a.
4
b.
2
c.
5
d.
3 Correct Answer
Step-by-Step AI Explanation
Verified Method
There are 3 types of arrays in PHP: indexed arrays, associative arrays, and multidimensional arrays. So the correct answer is 3.
Q6 mcq 1 mark
What type of statement is the if...else statement ?
a.
Input
b.
Conditional Correct Answer
c.
Output
d.
Looping
Step-by-Step AI Explanation
Verified Method
The if...else statement is a conditional statement because it is used to make decisions based on whether a condition is true or false. It is not an input, output, or looping statement.
Q7 mcq 1 mark
What is the output of the following code ? $i = 4; do { echo $i.β€œ<br>”; $i++; } while ($i<=3);
a.
3 2 1
b.
1 2 3 4
c.
1 2 3
d.
None of the above Correct Answer
Step-by-Step AI Explanation
Verified Method
The code starts with $i = 4$. In a do...while loop, the body executes at least once before checking the condition. So it prints 4 once, then increments $i$ to 5. The condition $i \le 3$ becomes false, so the loop stops. Since the output is only 4, and that is not among options A, B, or C, the correct choice is None of the above.
Q8 mcq 1 mark
Which looping structure should be used to iterate over elements of an array in PHP ?
a.
do....while loop
b.
for loop
c.
foreach loop Correct Answer
d.
while loop
Step-by-Step AI Explanation
Verified Method
The foreach loop is used to iterate over elements of an array in PHP. It is specially designed for arrays and is the most suitable looping structure for this purpose. The other loops can be used in some cases, but foreach is the standard and easiest choice for arrays.
Q9 mcq 1 mark
What type of loop is β€œwhile loop” in PHP ?
a.
Counter loop
b.
Entry-check loop Correct Answer
c.
Iteration loop
d.
Exit-check loop
Step-by-Step AI Explanation
Verified Method
A while loop in PHP is an entry-check loop because the condition is tested before the loop body executes. If the condition is false initially, the loop may not run at all. Hence, the correct answer is (b) Entry-check loop. The other options are not correct because a counter loop usually refers to a for loop, and exit-check loops test the condition after executing the body.
Q10 mcq 1 mark
A set of Computers connecting together is called as __________.
a.
Hub
b.
Network Correct Answer
c.
Node
d.
Server
Step-by-Step AI Explanation
Verified Method
A set of computers connected together is called a Network. A network allows computers to communicate and share data and resources. So, the correct answer is (b) Network. A hub is a networking device, a node is a single device on a network, and a server is a computer that provides services to other computers.
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Q11 mcq 1 mark
The expansion of FTP is :
a.
Folder Transfer Protocol
b.
File Transfer Protocol
c.
File Transfer Program
d.
File Transmission Protocol
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Q12 mcq 1 mark
WWW was invented by :
a.
Blaise Pascal
b.
Tim Berners Lee
c.
John Napier
d.
Charles Babbage
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Q13 mcq 1 mark
__________ host the e-books on their websites.
a.
Digital publishing websites
b.
Bulk-buying websites
c.
Licensing websites
d.
Community websites
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Q14 mcq 1 mark
Which of the following system securely share business information with suppliers, vendors, partners and customers ?
a.
Arpanet
b.
Extranet
c.
Arcnet
d.
Intranet
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Q15 mcq 1 mark
Which is the first industry-specific EDI Standard ?
a.
Master
b.
TDCC
c.
ANSI
d.
VISA
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Q16 short answer
What is a Pasteboard in PageMaker ?
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Q17 short answer
What are the ACID properties ?
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Q18 short answer
Write a short note on Hackers.
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Q19 short answer
Write the syntax of file close function in PHP.
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Q20 short answer
Define Intranet.
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Q21 short answer
What is a Zone ?
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Q22 short answer
What is trace file ?
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Q23 short answer
Write about Phishing.
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Q24 short answer
What is the output of the following php programme ? <?php function greeting($name) { echo β€œHello, $name!”; } greeting (β€œworld”); ?>
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Q25 short answer
List out image file formats.
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Q26 short answer
What is the use of master page ?
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Q27 short answer
What is relationship in databases ? List its types.
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Q28 short answer
Explain the types of PHP Tags.
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Q29 short answer
What will be the output of the following in PHP code ? <?php $x=5; switch ($x) { case 5: echo β€œx is equal to 5”; break; case 10: echo β€œx is equal to 10”; break; case 15: echo β€œx is equal to 15”; break; default: echo β€œx is not equal to 5, 10, or 15”; } ?>
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Q30 short answer
What are the layers available in TCP/IP Reference Model ?
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Q31 short answer
Write a short note on RJ45 connector.
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Q32 short answer
Explain briefly the anatomy of a credit card.
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Q33 short answer
Write the syntax of mysqli_query( ) function with example.
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