Search Previous Year Questions

The correct answer is Magnetic Ink Character Recognition.

Key Points

• MICR is used by the banking industry to ease the processing and clearance of cheques and other documents.
• Numbers and characters found on the bottom of checks are printed using the Magnetic Ink.
• When a document that contains this ink needs to be read, it passes through a machine, which magnetizes the ink and then translates the magnetic information into characters.

The correct answer is xlsx, docx, pptx

Important Points

• .xlsx, .docx, .pptx contains extensions of MS-Office files.
• XLSX – is an Excel workbook.
• DOCX is part of Microsoft Office Open XML specification (also known as OOXML or OpenXML) and was introduced with Office 2007. DOCX is a zipped, XML-based file format. Microsoft Word 2007 and later use DOCX as the default file format when creating a new document. Support for loading and saving legacy DOC files is also included (Docx – Word document).
• PPTX – is a PowerPoint Open XML Presentation file.
• Office Open XML (OOXML) format was introduced with Microsoft Office 2007 and became the default format of Microsoft Excel ever since. Excel-related file extensions of this format include: .xlsx, .xlsm, .xltx, .xltm.

Additional Information

• XLS – Legacy Excel worksheets; officially designated "Microsoft Excel Worksheet".
• DOC – Legacy Word document.
• The Portable Document Format (PDF) is a file format developed by Adobe.
• PPT – Legacy PowerPoint presentation.

The correct answer is Distributed Denial of Service Attack.

Key Points

Distributed denial-of-service (DDoS):

• It is an attack is a malicious attempt to disrupt the normal traffic of a targeted server, service or network by overwhelming the target or its surrounding infrastructure with a flood of Internet traffic.
• DDoS attacks achieve effectiveness by utilizing multiple compromised computer systems as sources of attack traffic.
• Exploited machines can include computers and other networked resources such as IoT devices.

Additional Information

Spoofing:

• It is a broad term for the type of behavior that involves a cybercriminal masquerading as a trusted entity or device to get you to do something beneficial to the hacker — and detrimental to you.

Phishing:

• It is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate.

Cyberstalking:

• It is a crime committed when someone uses the internet and other technologies to harass or stalk another person online.

Key Points

• Optical Mark Reading (OMR) is a method of entering data into a computer system.
• Optical Mark Readers reads pencil or pen marks made in pre-defined positions on paper forms as responses to questions or tick list prompts.
• The OMR technology could be used if data is to be collected from a large number of sources simultaneously, a large volume of data must be collected and processed in a short period of time, information mainly comprises the selection of categories or "tick box" answers to multiple-choice questions.
• The OMR data entry system contains the information to convert the presence or absence of marks into a computer data file.

Computer hardware:

• While hardware refers to the physical components of a computer system (like CPU, floppy disk, motherboard), software is a collection of instructions or programs that tell the hardware what to do.
• This can include things such as operating systems, application software, and utilities. So, it's not a tangible component you can physically handle like the other options in the list.

The correct answer is Operating System.

Key Points

• Operating System acts as an interface connecting the computer user to the computer hardware.
• It is system software that manages computer hardware, software resources, and provides common services for computer programs.
• It sits in between the applications you run and the hardware, using the hardware drivers as the interface between the two.
• For example, when an application wants to print something, it hands that task off to the operating system.
• Following are some of the important functions of an operating System: Memory Management, Processor Management, Device Management, File Management, Security, Control over system performance, Job accounting, Error detecting aids, Coordination between other software and users.
• Some of the commonly used Operating Systems-
• Microsoft Windows
• Apple macOS
• Linux
• Android
• Apple's iOS
• UNIX

The correct answer is It processes and stores data.

Key Points

The control unit (CU) is a crucial component of the computer's central processing unit (CPU). Here's a brief explanation of why each statement is correct or incorrect:

• It receives instructions from memory, interprets them, and directs the operation of the computer.
• Correct. The control unit fetches instructions from the computer's memory, decodes them to understand what specific operations need to be performed, and then directs the other parts of the CPU to execute those operations.
• It processes and stores data.
• Incorrect. The processing and storage of data are primarily the functions of the arithmetic logic unit (ALU) and memory/storage components, not the control unit. The ALU performs arithmetic and logical operations, while different types of memory (like RAM, hard drives, etc.) are responsible for storing data.
• It manages and coordinates all the units of the computer.
• Correct. The control unit coordinates the activities of all other units within the computer, ensuring that they work in harmony and follow the instructions of the currently executing program.
• It is responsible for controlling the transfer of data and instructions between other units of the computer.
• Correct. The control unit manages the flow of data and instructions between the CPU, memory, and peripheral devices, making sure that the right data is in the right place at the right time for processing.

Therefore, the statement "It processes and stores data" is incorrect regarding the functions of the control unit.

Additional Information

• The word computer is derived from the word compute. In the year 1833, English mechanical engineer Charles Babbage designed the first analytical engine. He is known as the father of the computer.
• In the beginning, computers are used for calculating large numbers and can only store a small amount of data.

The correct answer is Structure Query Language.

Key Points

• SQL stands for Structure Query Language.
• It is a standard language used for managing and manipulating databases.
• SQL is used to query, insert, update, and modify data stored in a relational database.
• It is essential for database management and is widely used in various applications.

The correct answer is Joy Stick.

Key Points

• Joy Stick:
• A joystick is primarily used for video games, flight simulators, and other applications that require fine control of movement and navigation.
• While it could theoretically be used to control a cursor in a manner similar to a mouse, it's not practical or standard for use with MS Office.
• It doesn't have the precision necessary for text editing and other typical Office tasks.

Additional Information

• Scanner: While not a direct input device for working in MS Office, a scanner can be used to import documents or images into Office programs.
• Light Pen: A light pen can be used in some circumstances to interact with MS Office, especially on touch screen or interactive whiteboard environments, similar to a stylus.
• Mouse: A mouse is a standard input device used in MS Office for navigation, selection, and execution of commands.

The correct answer is Yotta Byte (YB).

Key Points

• Yotta Byte (PB) is considered the largest.
• 1 Yotta Byte (YB) = 1024 Zettabytes

Additional Information

Data Measurement Chart: