PPSC Computer Science Past Paper 2017 Solved MCQs with Answers
Solved Computer Science MCQs from the PPSC 2017 past paper, each with the correct answer and a clear explanation. Ideal practice for PPSC, FPSC, NTS, CSS and PMS. All questions are extracted from the actual 2017 paper and verified before publication.
Which device is used for permanent data storage?
The hard disk stores data permanently, keeping it when the power is off.
A relational database consists of a collection of?
A relational database is a collection of tables, each holding rows of related data.
The time span from when a process is submitted until it is completed is called?
Turnaround time is the whole span from submission of a process to its completion. Response time is only the wait for the first output.
The shortcut key to close a selected window is?
Alt + F4 closes the selected window.
In Computer Networking, the WAP service is associated with?
WAP, the Wireless Application Protocol, belongs to wireless networking.
What does SIM stand for?
SIM stands for Subscriber Identity Module.
Which normal form is based on multivalued dependencies?
Fourth normal form deals with multivalued dependencies.
The term attribute refers to a which of a table?
An attribute is a column of a table. A row is a tuple or record.
Which one extends a private network over public networks?
A virtual private network extends a private network across a public one, tunnelling the traffic so it stays private.
The network layer concerns with?
The network layer handles packets, and the data link layer handles frames.
The total number of pixels stored in a graphics system's frame buffer is known as?
The total number of pixels held in the frame buffer is the resolution of the display.
Communication channel is shared by all the machines on the network in?
In a broadcast network one communication channel is shared by every machine, so a transmission reaches them all.
In a graphical system, the pixel array of the image is stored in?
The pixel array of the displayed image is held in the frame buffer.
Which focuses on the discovery of (previously) unknown properties on data?
Data mining discovers previously unknown patterns and properties in large bodies of data.
Bluetooth is an example of?
Bluetooth forms a personal area network, covering only a few metres around the user.
Two devices are in a network if:
Two devices are networked when a process on one can exchange information with a process on the other.
A set of protocols employed by a system, with one protocol for each layer, is called?
The set of protocols used by a system, one for each layer, is a protocol stack.
The network layer protocol of the Internet is?
The Internet Protocol is the network layer protocol of the internet. TCP and UDP work at the transport layer.
Which of the following is an example of an Operating System?
Microsoft Windows is an operating system. Office, Photoshop and Chrome are applications.
What category of web-based system would you assign to discussion groups?
Discussion groups are online communities, web systems built around interaction between users.
Which is an example of a NoSQL database type?
Document databases such as MongoDB are a NoSQL type, storing records as documents rather than in fixed tables.
In Ms-Word 2013, Quick Access toolbar allows you to access common?
The Quick Access toolbar keeps common commands, such as Save and Undo, always within reach.
Which serves as a buffer between the CPU and main memory?
Cache memory sits between the processor and main memory as a fast buffer, holding what is most likely to be needed next.
What category of web-based system would you assign to electronic shopping?
Electronic shopping is a transaction-oriented system, built around the exchange of orders and payments.
Input devices such as thumb scanners, retina scanners, and voice recognition used to input data into a computer system are examples of?
Thumb scanners, retina scanners and voice recognition are biometric systems, identifying a person by a physical characteristic.
W3C stands for?
W3C stands for World Wide Web Consortium, the body that sets web standards.
Which is not a NoSQL database?
SQL Server is a relational database. MongoDB, Cassandra and Redis are NoSQL.
For each attribute of a relation, there is a set of permitted values, called the ______ of that attribute?
The set of permitted values for an attribute is its domain.
An e-mail address consists of two parts: username or ID and?
An email address has a user name and a domain name, joined by the @ sign.
ICMP (Internet Control Message Protocol) is primarily used for?
ICMP carries error and diagnostic messages, which is what the ping and traceroute commands rely on.
By default, on which page is the Header or Footer printed in MS Word?
A header or footer prints on every page of the section by default.
In Information Technology, what does HTML stand for?
HTML stands for Hyper Text Markup Language.
When was the very first email ever sent?
Ray Tomlinson sent the first network email in 1971.
The major language for structuring content on the World Wide Web is?
HTML is the language that structures content on the World Wide Web.
The software that contains data organized in rows and columns is called?
Software that holds data in rows and columns is a spreadsheet.
In the field of computers, what is BASIC (Beginners All-Purpose Symbolic Instruction Code)?
BASIC is a programming language.
“Ctrl + C” is used for?
Ctrl + C copies the selected text.
In MS Word 2007, which shortcut key is used to increase left Indent?
Ctrl + M increases the left indent in MS Word. Ctrl + Shift + M decreases it.
In MS-Word, the Home key moves the cursor to the?
The Home key moves the cursor to the beginning of the line.
What is used to protect a network server from unauthorized access and malicious traffic?
A firewall filters traffic in and out of a network, blocking unauthorised access.
With which view can you see how texts and graphics appear on the printed page?
Print Layout view shows text and graphics as they will appear on the printed page.
In MS Word, “Ctrl + Page Down” is used to move the cursor?
Ctrl + Page Down moves the cursor to the top of the next page.
The Unit that controls all parts and components of a computer is the?
The CPU controls and directs all the parts of the computer.
PDF is a text format designed by Adobe. What does the abbreviation PDF mean?
PDF stands for Portable Document Format.
The display device on a computer, similar to a television screen is called?
The monitor is the display device, similar to a television screen.
A network that covers a large area, a city, a country, and beyond is called?
A wide area network covers a large area, a country or more.
Which Power Point feature allows the user to create a simple presentation quickly?
The AutoContent Wizard created a simple presentation quickly from a chosen outline.
A computer processor can only understand?
A processor understands only machine language, the binary instructions of its own instruction set.
Which shortcut keys is used to align the selected text to the center, in MS Word?
Ctrl + E centres the selected text.
In MS PowerPoint, the screen becomes black by pressing which letter on the keyboard?
Pressing B during a slide show blacks out the screen. W turns it white.
The program that contains instructions to operate a device is called?
A device driver holds the instructions that operate a particular device.
In the field of IT, FTP stands for?
FTP stands for File Transfer Protocol.
USB Flash Drive is commonly used portable device to store data. What does USB stand for?
USB stands for Universal Serial Bus.
Which term refers to the ability of a computer to automatically configure a new hardware component that is added to it?
Plug and play lets the system detect and configure new hardware automatically.
The Tool used for finding a similar word in a Document is called?
The Thesaurus finds words of similar meaning.
A group of 8 bits is called?
A group of 8 bits is a byte.
Which helps in reducing spelling errors in a document being typed?
AutoCorrect fixes common misspellings as you type, so the error never reaches the page.
Keys starting with characters F1 to F12 are?
F1 to F12 are the function keys.
MICR stands for?
MICR stands for Magnetic Ink Character Recognition, used to read the coded numbers on cheques.
UPS stands for?
UPS stands for Uninterruptible Power Supply, which keeps a computer running through a power failure.
Macintosh, a personal computer, was developed by?
The Macintosh was developed by Apple.
The process of transferring files from the internet to your computer is called?
Bringing files from the internet to your computer is downloading.
Hyperlink Shortcut key is?
Ctrl + K inserts a hyperlink.
WAN is a type of network; its full form is?
WAN stands for Wide Area Network.
Who is called the 'Father of Computers'?
Charles Babbage is called the father of the computer.
Ctrl + N in MS Word is used to?
Ctrl + N creates a new document.
In MS Excel, if you accidentally delete a record on the sheet, which command can be used to restore it immediately?
Undo restores a record deleted by accident, provided it is used before other work intervenes.
In MS Word one can undo last actions using which key?
Ctrl + Z undoes the last action.
What is the shortcut key for making text "Bold" on a PC?
Ctrl + B applies bold.
Which can be used to mark a multiple-choice test?
An optical mark reader detects pencil marks in set positions, which is how multiple choice answer sheets are marked.
Which is also known mechanical agent?
A robot is a mechanical agent, a machine that carries out physical tasks on instruction.
In MS Word 2007, which shortcut key is used to switch to Print Layout view?
Alt + Ctrl + P switches to Print Layout view.
Is used for criminal investigations and security system. Some computers use it for login and user authentication?
A fingerprint reader is used in criminal investigation and in security systems, and also for logging in to a computer.
Individual dots that make up a picture on the monitor screen are called?
The individual dots that make up a screen image are pixels.
Which is a collection of programme that supervises and control overall function of a computer?
The operating system is the collection of programs that supervises and controls the whole computer.
“Fax Viewer” is a/an?
Fax Viewer is a utility program, supplied with Windows to view and manage fax documents.
URL is an abbreviation of?
URL stands for Uniform Resource Locator.
Which is a grid of individual pixels that together make up an image?
A raster graphic, or bitmap, is a grid of individual pixels. A vector graphic is stored as shapes instead.
Inventor of Computer Mouse was a/an ________ engineer?
Douglas Engelbart, who invented the mouse in 1964, was an American engineer.
What shortcut key is used to replace text or specific formatting?
Ctrl + H opens Replace, used to change text or formatting.
Encyclopedia is an example of ________ software?
An encyclopedia on disc is reference software, whose purpose is to supply information for consultation.
Which is used to create visual presentations with the help of audio and video clips?
Multimedia software builds presentations combining audio and video with text and images.
Which is a program used to view and manage images?
An image viewer is the program used to view and manage pictures.
In MS Word 2007, which shortcut key n used to insert a comment?
Alt + Ctrl + M inserts a comment.
PCI is an expansion slot, it stands for?
PCI stands for Peripheral Component Interconnect.
Which controls, coordinates, and directs all the operations performed by the computer?
The control unit directs and coordinates every operation of the computer. The ALU does the calculating.
What does RAM in a computer stand for?
RAM stands for Random Access Memory.
________ is a silicon chip that executes a set of instructions and processes data efficiently and accurately?
A processor is the silicon chip that executes instructions and processes data.
Which devices hold data and instructions?
Storage devices hold data and instructions, both before and after processing.
In MS Word 2007, which shortcut key is used for switching to Draft view?
Alt + Ctrl + N switches to Draft view in MS Word 2007.
________ could tell you the price of a bar of biscuit?
A bar code reader reads the code printed on a packet and looks up its price.
What is the full form of UNIVAC?
UNIVAC stands for Universal Automatic Computer, the first commercial computer in the United States.
About the PPSC Computer Science Past Paper 2017
Every MCQ above is taken from the Punjab Public Service Commission (PPSC) Computer Science papers held in 2017, with the correct answer and a written explanation for each. Past-paper practice is the most dependable way to prepare for PPSC, FPSC, NTS, CSS and PMS, because these papers repeat their themes, and often the questions themselves, from one year to the next.
Questions were checked against reliable sources before publication. Where a circulating source sheet carried a factual or wording error, we corrected it rather than reproducing the mistake. For chapter-wise preparation, work through our Computer Science MCQs hub, which also lists every other year’s paper. Further reading: Pakistan Movement and the PPSC official website.
How to Use This Paper
Attempt the full quiz before looking at any answer, then read the explanation for every question you got wrong, including those you guessed correctly. A past paper is only useful if you close the gaps it exposes. Pro members can download the complete paper as a PDF with all answers and explanations for offline revision.