कंप्यूटर अवेयरनेस टेस्ट - 25

 Ans (a)

Sol.  A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings

 Ans. (c)

Sol. Shift + Delete will delete the selected item permanently.

 Ans. (d)

Sol.  Auxiliary memory is also called secondary memory.

 Ans. (c)

Sol. Ctrl + Shift + C is used to copy text formatting

Ans. (a)

Sol. The key F12 opens a SaveAs dialog box.

Ans.(d)

Sol. A bootstrap is the process of starting up a computer. It also refers to the program that initializes the operating system (OS) during start-up.

 Ans.(a)

Sol. Hybrid computers are computers that exhibit features of analog computers and digital computers. The digital component normally serves as the controller and provides logical and numerical operations, while the analog component often serves as a solver of differential equations and other mathematically complex equations.

Ans.(b)

Sol. Linux is a Unix-like and mostly POSIX-compliant computer operating system (OS) assembled under the model of free and open-source software development and distribution.

 Ans.(e)

Sol.  Closed envelope icon represents an e-mail message that has not been read.

 Ans. (d)

Sol. A blog is a regularly updated website or web page, typically one run by an individual or small group, that is written in an informal or conversational style.

Ans. (b)

Sol. Bridges operate on data link layer and they can be used to connect LANs.

Ans. (a)

Sol. Java was introduced by Sun Microsystems.

Ans. (a)

Sol.  File menu is selected to print a document.

 Ans. (b)

Sol.  An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails.

 Ans. (d)

Sol.  Personal Computer (PC) A microprocessor-based computer which is primarily intended to be used by one person at a time. It is usually characterised by relatively low cost and small physical size.

Ans. (c)

Sol.  When a logic bomb is activated by a time-related event, it is known as a Time bomb. In computer software, a time bomb is part of a computer program that has been written so that it will start or stop functioning after a predetermined date or time is reached.

 Ans. (d)

Sol. Dial-up is not broadband.

 Ans. (c)

Sol. Browser is used to view websites.

Ans. (b)

Sol. HTML and XML are based on SGML. SGML (Standard Generalized Markup Language) is a standard for how to specify a document markup language or tag set. Such a specification is itself a document type definition (DTD). SGML is not in itself a document language, but a description of how to specify one.

Ans.(c)

Sol. In second generation, magnetic cores were used as primary memory and magnetic tape and magnetic disks as secondary storage devices. In this generation assembly language and high-level programming languages like FORTRAN, COBOL were used.

 Ans.(a)

Sol. The first electronic digital computer contained electronic valves.

 Ans.(a)

Sol. In computer user interfaces, a cursor is an indicator used to show the current position for user interaction on a computer monitor or other display device that will respond to input from a text input or pointing device.

Ans.(b)

Sol. An ink cartridge or inkjet cartridge is a component of an inkjet printer that contains the ink that is deposited onto paper during printing.

Ans.(b)

Sol. Ctrl+J is used to justify the selected text.

Ans.(d)

Sol. The Altair is widely recognized as the spark that ignited the microcomputer revolution as the first commercially successful personal computer

 Ans.(b)

Sol. Bit is smallest unit of storage, Nibble= 4Bits, Byte= 8Bits.

Ans.(b)

Sol.  Row in an Access table is also known as Record.

Ans.(d)

Sol. Using a query makes it easier to view, add, delete, or change data in your Access database. Some other reasons for using queries:

Find specific quickly data by filtering on specific criteria (conditions), Calculate or summarise data

Automate data management tasks, such as reviewing the most current data on a recurring basis.

Ans. (a)

Sol. Set of permitted values is called the domain of that attribute.

 (Relation is a table. Attributes describe the instances in the row of a database.)

Ans. (a)

Sol. Data model is an abstract model that describes, how the data are organised and represented.