कंप्यूटर अवेयरनेस टेस्ट - 27

Ans. (e)

Sol. Electronic commerce, commonly written as e-commerce or e-commerce, is the trading or facilitation of trading in products or services using computer networks, such as the Internet or online social networks.

Ans. (d)

Sol. Modem is a telecommunication device.

 Ans. (a)

Sol. Single-user mode allows only one connection to a database at a given moment in time.

Ans. (c)

Sol. A nibble =4 bits.

Ans.(b)

Sol. A folder is a virtual location where programs, files, and other folders can be located

Ans. (a)

Sol. cascade and tile are two ways to arrange multiple windows on the desktop

Ans. (a)

Sol. Dimmed command is a command is not available for selection until certain other conditions are met.

 Ans. (d)

Sol. All among the given options are available while shutting down computer.

 Ans. (d)

Sol. Windows Mac is not a valid version

 Ans. (b)

Sol. It will be called upgrade.

Ans. (b)

Sol. The Windows API, informally WinAPI, is Microsoft's core set of application programming interfaces (APIs) available in the Microsoft Windows operating systems. The name Windows API collectively refers to several different platform implementations that are often referred to by their own names (for example, Win32 API).

Ans. (c)

Sol.  Windows 10 is the latest version of Microsoft's Windows operating system.

. Ans.(a)

Sol. A relationship is an association among entities. We can use the Entity-Relationship Diagram (ERD) to represent an inter-relationship between the entities of a database

 Ans.(b)

Sol. Foreign key is a field in one table that is used as the primary key in another table. Whenever a relationship is created between two tables, a common field acts as the primary key in the first table and the foreign key in the second table.

 Ans.(a)

Sol. Composite key is formed when two or more fields of a database table are combined together in order to uniquely identify the records stored in the table.

 Ans.(b)

Sol. If a table has more than one field that can be selected as the primary key, the field that is not selected as the primary key is called a candidate key.

Ans.(b)

Sol. The interpreter is a computer program that helps in executing programs written in high-level languages without the need to compile them first.

Ans.(b)

Sol. Since one table can have at the most one primary key to avoid duplicates in other columns of the table, unique key can be defined. We can make one or more unique keys in a single table.

Ans.(d)

Sol. In a message-switched network, a packet containing the entire message is transmitted over the network. It is a more expensive network.

Ans.(c)

Sol. The client/server network contains a centralized server that manages and controls all the other nodes of the network. It is expensive as it requires NOS and a specialized server system. It is highly secure and prossesses good speed. However, it becomes congested when more clients simultaneously request for a service to the server.

Ans.(b)

Sol. A data bus connects internal components to the motherboard and acts as a carrier for the data.

 Ans.(b)

Sol. Television is an example of simplex communication

Ans.(a)

Sol. Points is the default measurement unit to specify the size of text

 Ans.(d)

Sol. The Text Rotation command allows you to rotate the text in any direction.

Ans.(c)

Sol. ScreenTip is a small window that appears when the pointer is rolled over a command or control. It shows the descriptive text for that command or control.

 Ans.(a)

Sol. The AutoCorrect feature is used to correct typo errors and misspelled words automatically according to the words given in the list for the AutoCorrect feature.

Ans.(d)

Sol. In MS Excel, apostrophe is a symbol that is used to convert the numeric value in the text format. To do this, you need to add the apostrophe symbol before the numeric value

Ans.(b)

Sol. A cell range refers to a group of cells within a row or column. For example, a cell range including the cells B1, B2, B3, B4 and B5 will be written as B1:B5.

Ans.(b)

Sol. In MS Excel, the equals sign is used to start a formula or function.

 Ans.(a)

Sol. Class A IP addresses range from 1.0.0.0 to 126.225.225.225. Class A addresses only include IP starting from 1.x.x.x to 126.x.x.x only. The IP range 127.x.x.x is reserved for loopback IP addresses.