Question

Q.No. 4. Explain the following term:-

(a) Field
(b) Record
(c) Node
(d) WAP
(e) Server​

Answer 1

Answer:

a. Field

A field is an area in a fixed or known location in a unit of data such as a record, message header, or computer instruction that has a purpose and usually a fixed size.

b. Record

Records in a database or spreadsheet are usually called "rows". A record is a collection of fields, possibly of different data types, typically in fixed number and sequence ...

c. Node

A node is a database containing agendas and information for users and resources. A node network is a set of two or more connected nodes. More than one node can exist on a single calendar host.

d. WAP

Wireless Application Protocol (WAP) is a technical standard for accessing information over a mobile wireless network. ... The Japanese i-mode system offered another major competing wireless data protocol.

e. Server

A database server is a server which uses a database application that provides database services to other computer programs or to computers, as defined by the client–server model. ... The SQL (Structured Query Language) query language is more or less the same on all relational database applications.

Answer 2

Answer:

★Fields:Data that has several parts, known as a record, can be divided into fields.

★Record:A record is a database entry that may contain one or more values. Groups of records are stored in a table, which defines what types of data each record may contain.

★Node:Any system or device connected to a network is also called a node.

★WAP:wireless application protocol: a protocol for transferring documents, especially web pages, over a computer network to cell phones and other handheld wireless devices.

★Server:A server is a computer that provides data to other computers. It may serve data to systems on a local area network (LAN) or a wide area network (WAN) over the Internet. Many types of servers exist, including web servers, mail servers, and file servers. Each type runs software specific to the purpose of the server.

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