Computer — All MCQs
4795 questions available
Q1741.45 is equivalent _______ in binary system.
Correct Answer: A
Converting decimal 45 to binary gives 101101 (32 + 8 + 4 + 1 = 45).
Q1742.Which layer of the OSI model is responsible for end-to-end communication and error recovery?
Correct Answer: A
The Transport Layer (Layer 4 of the OSI model) is responsible for providing logical, end-to-end data flow, error detection, and recovery services.
Q1743.Which formula is used to find the number of numerical cells in a range of cells in Excel?
Correct Answer: B
The COUNT function in Microsoft Excel counts only the cells that contain numbers within a specified range.
Q1744.Which of the following operating system is based on open-source software?
Correct Answer: D
Linux is a prominent operating system family built on open-source software, meaning its source code is free to read, edit, and distribute.
Q1745.What is extension of MS PowerPoint presentation of file in 2007 and later?
Correct Answer: C
The standard default file extension for saving PowerPoint presentations in MS Office 2007 and all subsequent versions is .pptx.
Q1746.Which data structure uses LIFO (Last In, First Out) principle?
Correct Answer: A
A Stack is a linear data structure that adheres to the LIFO (Last In, First Out) principle, where the last added element is the first one removed.
Q1747.Which one is an example of database designing software?
Correct Answer: C
Microsoft Access is a relational database management software included in the Microsoft Office suite, designed to create, query, and edit databases.
Q1748.Which of the following is a feature of a relational database?
Correct Answer: A
A Relational Database organizes and stores data in a structured tabular format of related horizontal rows and vertical columns.
Q1749.Which of the following can be renamed?
Correct Answer: C
In Microsoft Excel, both individual sheets (worksheets) and the file itself (workbook) can be renamed easily.
Q1750.The SQL command used to retrieve data from a database table is?
Correct Answer: A
The SELECT statement is the standard SQL command utilized to extract and query specific data records from a database table.
Q1751.What is the name of a device that converts digital signals to analog signals?
Correct Answer: C
A Modem (Modulator-Demodulator) modulates digital computer signals into analog signals for transmission over phone lines, and demodulates incoming analog signals back to digital.
Q1752.Google Docs is an example of?
Correct Answer: C
Google Docs is a cloud-based web application that lets users create, edit, store, and collaborate on text documents over the internet.
Q1753.Thesaurus tool in MS Word is used for ______?
Correct Answer: C
The Thesaurus tool in Microsoft Word is used to find synonyms (similar words) and antonyms (opposite words) to improve document vocabulary.
Q1754.Microsoft Excel is an electronic software package?
Correct Answer: B
Microsoft Excel is an electronic spreadsheet application used to record, calculate, analyze, and format numerical and textual data.
Q1755.Which of the following is/are not considered as a system software?
Correct Answer: C
Tally (accounting) and MS Office are user-oriented applications, whereas operating systems and language processors (compilers/interpreters) are system software.
Q1756.Shortcut key to "Save As" file is?
Correct Answer: B
Pressing F12 in Microsoft Office applications (such as Word and Excel) instantly opens the "Save As" dialog box to save a document under a new name or location.
Q1757.Why we use Alt + F shortcut keys on keyboard?
Correct Answer: A
Alt + F is the standard keyboard shortcut used to open the File menu in most Windows applications.
Q1758.Ctrl + O shortcut key is used in MS Word to ______?
Correct Answer: D
Ctrl + O is the keyboard shortcut used in Microsoft Word to open an existing file or document.
Q1759.What is the smallest font size available in the Font Size tool on the Formatting Toolbar?
Correct Answer: B
The smallest default preset font size available in the Font Size drop-down tool on the formatting toolbar is 8 points, though Word supports custom entries down to 1 point.
Q1760.In MS Word, which key is used to increase the font size?
Correct Answer: A
In Microsoft Word, holding Ctrl + Shift + > increases the font size of the selected text, while Ctrl + Shift + < decreases it.