The 15 one-mark questions from the March 2025 12th Standard Computer Applications public exam, in paper order, with the correct option marked and a short explanation.
Q1
__________ has five major components like text, images, sound, video and animation.
- A. Master item
- B. MultimediaCorrect
- C. Multi-word
- D. Master page
Explanation. Multimedia combines five major components: text, images, sound, video and animation.
Q2
A __________ is used for magnifying the particular portion of the area.
- A. Zoom toolCorrect
- B. Text tool
- C. Hand tool
- D. Line tool
Explanation. In PageMaker, the Zoom tool magnifies (or reduces) a selected portion of the page; the Hand tool only scrolls the page.
Q3
To select an entire document using the keyboard, press __________.
- A. Ctrl+C
- B. Ctrl+ACorrect
- C. Ctrl+D
- D. Ctrl+B
Explanation. Ctrl+A (Select All) selects the entire text of the document; Ctrl+C copies the selection.
Q4
Which operator is called "identical" ?
- A. ===Correct
- B. =
- C. <>
- D. ==
Explanation. The === operator is the identical operator: it returns true only when both operands are equal and of the same data type. == is "equal" and = is assignment.
Q5
How many types of arrays are there in PHP ?
- A. 4
- B. 2
- C. 5
- D. 3Correct
Explanation. PHP has three types of arrays: indexed arrays, associative arrays and multidimensional arrays.
Q6
What type of statement is the if...else statement ?
- A. Input
- B. ConditionalCorrect
- C. Output
- D. Looping
Explanation. if...else executes one block when the condition is true and another when it is false, so it is a conditional statement.
Q7
What is the output of the following code ?
$i = 4;
do
{
echo $i."<br>";
$i++;
} while ($i<=3);
- A. 3
2
1
- B. 1
2
3
4
- C. 1
2
3
- D. None of the aboveCorrect
Explanation. A do...while loop runs its body once before testing the condition, so it prints 4; then $i becomes 5 and 5 <= 3 is false, so the loop stops. The output is just 4, which is not among options (a)-(c).
Q8
Which looping structure should be used to iterate over elements of an array in PHP ?
- A. do....while loop
- B. for loop
- C. foreach loopCorrect
- D. while loop
Explanation. The foreach loop is designed to go through each element of an array one by one without using an index counter.
Q9
What type of loop is "while loop" in PHP ?
- A. Counter loop
- B. Entry-check loopCorrect
- C. Iteration loop
- D. Exit-check loop
Explanation. A while loop tests its condition before entering the loop body, so it is an entry-check loop; do...while is the exit-check loop.
Q10
A set of Computers connecting together is called as __________.
- A. Hub
- B. NetworkCorrect
- C. Node
- D. Server
Explanation. A computer network is a set of computers connected together to share resources and information.
Q11
The expansion of FTP is :
- A. Folder Transfer Protocol
- B. File Transfer ProtocolCorrect
- C. File Transfer Program
- D. File Transmission Protocol
Explanation. FTP stands for File Transfer Protocol, the standard protocol for transferring files between computers over a network.
Q12
WWW was invented by :
- A. Blaise Pascal
- B. Tim Berners LeeCorrect
- C. John Napier
- D. Charles Babbage
Explanation. Tim Berners-Lee invented the World Wide Web in 1989 at CERN.
Q13
__________ host the e-books on their websites.
- A. Digital publishing websitesCorrect
- B. Bulk-buying websites
- C. Licensing websites
- D. Community websites
Explanation. Digital publishing websites act as online publishers and host e-books on their own websites.
Q14
Which of the following system securely share business information with suppliers, vendors, partners and customers ?
- A. Arpanet
- B. ExtranetCorrect
- C. Arcnet
- D. Intranet
Explanation. An extranet extends an organisation's private network to authorised outsiders such as suppliers, vendors, partners and customers; an intranet is for employees only.
Q15
Which is the first industry-specific EDI Standard ?
- A. Master
- B. TDCCCorrect
- C. ANSI
- D. VISA
Explanation. The Transportation Data Coordinating Committee (TDCC) published the first industry-specific EDI standard in 1975, for the transport industry.
About this paper
These are the Part I one-mark multiple-choice questions from the March 2025 12th Standard Computer Applications public examination conducted by the Tamil Nadu Directorate of Government Examinations. The answers and explanations are prepared by TN Online Test for revision. Each question links to the textbook chapter it comes from, so you can go back to that chapter's notes and MCQs.
