Computer Questions and Answers
what is the default chart type in Microsoft excel?
(A) pie chart
(B) line chart
(C) surface chart
(D) column chart
Correct Answer : D
Explanation :
In Microsoft Excel, the default chart type for most data is the "Column Chart." When you create a new chart in Excel without specifying a specific type, it usually starts with a column chart where data points are represented as vertical bars. Of course, you can change the chart type later based on your preferences and the type of data you want to visualize.
Which symbol is used to separate the username of an email address from that of an ISP?
(A) @
(B) &
(C) $
(D) #
Correct Answer : A
Explanation :
The "@" symbol is used to separate the username of an email address from the domain name of the Internet Service Provider (ISP) or email service provider. For example, in the email address "username@example.com," "username" is the username of the email account, and "example.com" is the domain name of the email service provider, separated by the "@" symbol.
Which computer virus records every movement you make on the computer?
(A) Malware Android
(B) DoS
(C) Key Logger
(D) Trapper
Correct Answer : C
Explanation :
A keylogger (short for keystroke logger) is a type of computer virus or malware that records every keystroke and movement made on a computer's keyboard, including sensitive information such as passwords, credit card numbers, and personal messages. It essentially captures the user's keystrokes without their knowledge and sends this information to the attacker, posing a significant security threat.
What is called the syntax analysis part in the machine language transformation of a high-level language?
(A) lexical analysis
(B) semantic analysis
(C) parsing
(D) linking
Correct Answer : C
Explanation :
Parsing, in high-level language transformation, is the analysis of code syntax using formal grammar rules. It checks for errors and creates a parse tree representing the code's structure. This tree guides the generation of machine code or program execution, ensuring correct interpretation and execution of the source code.
Mail merge is a component of which of the following?
(A) MS Word
(B) MS Excel
(C) Word Press
(D) MS Access
Correct Answer : A
Explanation :
Mail merge is a feature in Microsoft Word that allows you to create personalized documents, such as letters, envelopes, or labels, by combining a main document (containing generic content) with a data source (such as an Excel spreadsheet or a database) that contains specific information for individual recipients. This feature is commonly used for creating mass mailings or personalized communication materials.
The instruction about booting your system is stored in:
(A) RAM
(B) CPU
(C) BIOS
(D) Register
Correct Answer : C
Explanation :
The instructions about booting your system are stored in the Basic Input/Output System (BIOS) or its modern equivalent, Unified Extensible Firmware Interface (UEFI). BIOS/UEFI is firmware that is built into the computer's motherboard and contains low-level software that initializes and initializes hardware components, including the system boot process. It provides the necessary instructions for the computer to boot up and load the operating system from the storage device.
Which keys are used to switch between programs in windows?
(A) Ctrl+TAB
(B) Alt+TAB
(C) Shift+TAB
(D) Shift+Enter
Correct Answer : B
Explanation :
In Windows, pressing the "Alt" key along with the "Tab" key (Alt+Tab) allows you to switch between open programs or applications. This keyboard shortcut displays a list of open windows, and you can cycle through them by continuing to press the "Tab" key while holding down the "Alt" key, and then release both keys to switch to the selected program.
3 A nibble is equal to bits.
(A) 4
(B) 8
(C) 16
(D) 32
Correct Answer : A
Explanation :
Actually, a nibble consists of 4 bits, not 3. In computing, a nibble is a unit of data that consists of 4 bits, which can represent 16 different values (2^4). Each nibble can be expressed as a single hexadecimal digit (0 to F, where F represents 15 in decimal) and is half of a byte, which consists of 8 bits. So, 4 bits make up one nibble.
What is the mascot of the Linux operating system?
(A) Bear
(B) Penguin
(C) Lion
(D) whale
Correct Answer : B
Explanation :
The mascot of the Linux operating system is a penguin named Tux. Tux was created by Larry Ewing and has become the widely recognized symbol representing the Linux kernel and the open-source software community.
Laser printer resolution is specified in terms of:
(A) DPI
(B) LPM
(C) CPM
(D) LSI
Correct Answer : A
Explanation :
Laser printer resolution is specified in terms of DPI, which stands for Dots Per Inch. DPI refers to the number of dots a printer can place within one square inch of space on a printed page. Higher DPI values generally result in sharper and more detailed printouts. Laser printers typically offer higher DPI resolutions, such as 600 DPI or 1200 DPI, leading to high-quality text and graphics output.
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Vikram Singh
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