कंप्यूटर अवेयरनेस टेस्ट - 23

Ans.(c)

Sol. FORTRAN is the best and only major programming language for scientific applications. It is designed for performing large and complex scientific numerical computing.

Ans.(a)

Sol. A context switching comes into the picture when the time period provided for one process is over and a new process is loaded from the ready queue for processing.

 Ans.(b)

Sol. DOS stands for Disk Operating System. It is the first operating system developed by Microsoft.

Ans.(d)

Sol. Operating system provided an interface between a user and computer hardware. It enables a user to utilize hardware resources efficiently.

Ans.(d)

Sol. An operating system (OS) is a program or software that manages and coordinates the functions of all the components of a computer. It also acts as an interface between the user and the hardware of a computer.

 Ans.(a)

Sol. Decimal number system has unique 10 digits, that is, from 0 to 9, to represent a number and its base (or radix) is 10. The decimal number system is also called a base-10 system as it has 10 digits.

Ans.(b)

Sol. The hexadecimal number system has 16 possible digits represented by the symbols 0 to 9 and the alphabets A, B, C, D, E and F

Ans.(d)

Sol. X-NOR gate is a complement of the X-OR gate. The truth table of the X-NOR gate is the complement (opposite) to the X-OR gate.

 Ans.(b)

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

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 summarize data

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

 Ans.(e)

Sol. In cryptography, data are sent in such a way that they look completely different from the original data. Thus, cryptography ensures secure transfer of data over an unsecured network.

Ans.(e)

Sol. SubSeven is a Trojan horse program that appears or pretends to be a genuine application, but actually causes damage to the executable files on the computer.

 Ans.(c)

Sol. In software, JAR (Java Archive) is a package file format typically used to aggregate many Java class files and associated metadata and resources (text, images, etc.) into one file to distribute application software or libraries on the Java platform.

 Ans.(b)

Sol. Super Computers are also known as number crunchers. A super computer's dominant characteristic is its ability to perform large amounts of numerical computations quickly.

 Ans.(b)

Sol. Television is an example of simplex communication. 

Ans.(a)

Sol. In a computer network, the devices are called nodes. 

Ans.(d)

Sol. Fiber optic cables transmit signals in the form of optical signals over a narrow glass fiber stand. 

Ans.(e)

Sol. A hub contains several ports for connecting multiple computers to form a small network. A simple hub is also called a concentrator.  

Ans.(d)

Sol. Gateway connects more than one network that uses different protocols.  

 Ans.(b)

Sol. The activity of purchasing items from different websites on the internet is known as online shopping.

Ans.(a)

Sol. A volatile device is a device that stores data temporarily. An example of a volatile device is RAM. 

 Ans.(d)

Sol. All other are valid keys except for track key. 

 Ans.(b)

Sol. Word Count is available in Proofing under Review tab.

Ans.(a)

Sol. RDBMS stands for Relational Database Management System.

Ans.(b)

Sol. MS DOS stands for Microsoft Disk Operating System it is a discontinued operating system for x86-based personal computers mostly developed by Microsoft.

Ans.(d)

Sol. Both SELECT and UPDATE are DML commands of SQL. DML is abbreviation of Data Manipulation Language. It is used to retrieve, store, modify, delete, insert and update data in database.

 Ans.(e)

Sol. All the given options are examples of pointing devices.

 Ans.(a)

Sol. A hyperlink, or simply a link, is a reference to data that the reader can directly follow either by clicking, tapping, or hovering. Hyperlinks are found in nearly all Web pages, allowing users to click their way from page to page.

Ans (a)

Sol. TeamViewer is a proprietary computer software package for remote connection, desktop sharing, online meetings, web conferencing and file transfer between computers.

Ans (b)

Sol. Most tags in HTML must have two parts, an opening and a closing part. For example, is the opening tag and is the closing tag.