The 15 one-mark questions from the March 2023 12th Standard Computer Applications public exam, in paper order, with the correct option marked and a short explanation.
Q1
The live telecasting of real-time program through Internet is known as ________.
- A. web hosting
- B. data manipulation
- C. web castingCorrect
- D. none of the above
Explanation. Web casting is the live broadcasting (telecasting) of real-time programs such as events and shows over the Internet.
Q2
In PageMaker window, the area outside the dark border is referred to as ________.
- A. black board
- B. page
- C. dash board
- D. paste boardCorrect
Explanation. In PageMaker, the area inside the dark border is the page, and the area outside it is the pasteboard, used to keep objects temporarily; objects on it are not printed.
Q3
MySQL belongs to which category of DBMS ?
- A. RelationalCorrect
- B. Object Oriented
- C. Network
- D. Hierarchical
Explanation. MySQL is a Relational Database Management System (RDBMS): data is stored in tables of rows and columns and accessed using SQL.
Q4
Recent statistics of server side scripting language usage depict that 78.9% of Website are developed by ________ Scripting Language.
- A. PHPCorrect
- B. Microsoft ASP
- C. CSS
- D. JSP
Explanation. According to the server-side scripting usage statistics quoted in the textbook, about 78.9% of websites are developed using PHP.
Q5
Associative arrays are a ________ pair data structure.
- A. Double value
- B. Single value
- C. String value
- D. Key valueCorrect
Explanation. An associative array stores data as key-value pairs, where each value is accessed using a named key instead of a numeric index.
Q6
Loops that execute the same block of code, a specified number of times is called :
- A. While loops
- B. Unbounded loops
- C. For loops
- D. Bounded loopsCorrect
Explanation. Loops that run a block of code a specified (fixed) number of times are called bounded loops; loops that repeat until a condition changes are unbounded loops. A for loop is one example of a bounded loop, but the category itself is called bounded loops.
Q7
In which input field only one option can be selected ?
- A. Radio buttonCorrect
- B. Text box
- C. Drop Down Menu
- D. Check box
Explanation. In a group of radio buttons only one option can be selected at a time, whereas check boxes allow several selections.
Q8
In which one of the following periods, the speed capacity supported towards gigabit on computer network ?
- A. NEW FIBRE OPTICSCorrect
- B. SABRE
- C. ARCNET
- D. SAGE
Explanation. In the history of networking, SAGE and SABRE were early systems and ARCNET was an early LAN; the new fibre optics period brought speeds towards gigabit levels.
Q9
Which one of the following is a technology to locate objects using radio signals ?
- A. WiFi
- B. URL
- C. RFIDCorrect
- D. HTTP
Explanation. RFID (Radio Frequency Identification) uses radio signals to identify and track objects through tags attached to them.
Q10
Maximum characters used in the label of a node.
- A. 63Correct
- B. 255
- C. 32
- D. 128
Explanation. In DNS, each node label can have at most 63 characters, while a full domain name can have at most 255 characters.
Q11
The cables that are placed in deep underground to avoid any damage to the cables.
- A. Fiber opticsCorrect
- B. Coaxial cables
- C. USB cables
- D. Twisted pair cables
Explanation. Fiber optic cables, used for long-distance high-speed links, are laid deep underground so that they are protected from damage.
Q12
The dotcom phenomenon deals with ________.
- A. Mobile phone companies
- B. Internet based companiesCorrect
- C. Textile industries
- D. All the above
Explanation. The dotcom phenomenon refers to the rapid growth of Internet-based companies (whose names ended in .com) in the late 1990s.
Q13
An example of network simulator.
- A. NS2Correct
- B. Simulator
- C. C++
- D. TCL
Explanation. NS2 (Network Simulator version 2) is an open source network simulator; C++ and TCL are the languages used to build and script it.
Q14
The expansion of PGP :
- A. Pretty Good Program
- B. Pretty Good PrivacyCorrect
- C. Private Good Person
- D. Pretty Good Person
Explanation. PGP stands for Pretty Good Privacy, an encryption program used to secure e-mail and data.
Q15
A ________ is used for magnifying the particular portion of the area.
- A. Zoom toolCorrect
- B. Text tool
- C. Hand tool
- D. Line tool
Explanation. The Zoom tool in PageMaker magnifies (or reduces) a particular area of the page; the Hand tool only scrolls the page.
About this paper
These are the Part I one-mark multiple-choice questions from the March 2023 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.
