Question

Ques 3:- Dif erentiate Betwee (4 MARKS)

1.field and record

2.LAN,MAN and WAN​

Answer 1

Answer:

Difference between field and record

A field is a single unit of data that is unique within each entry/row, but the overall data category is common to all entries. ... A database record is, basically, a row that contains unique data in each of the fields. A database will usually contain a large number of records but only a small number of fields.

Explanation:

Differentiate between LAN MAN and WAN

The geographical area covered by LAN is small, whereas, MAN covers relatively large and WAN covers the greatest of all. LAN is confined to schools, hospitals or buildings, whereas, MAN connects small towns or Cities and on the other hand, WAN covers Country or a group of Countries

Answer 2

Answer: Records and field

Records are composed of fields, each of which contains one item of information. The term "fields" refers to columns, or vertical categories of data while the term "records" refers to rows, or horizontal groupings of unique field data. A set of records constitutes a file. For example, a personnel file might contain records that have three fields: a name field, an address field, and a phone number field. In relational database management systems, records are called tuples.

LAN and WAN

LAN(local area network) is a computer network that covers a small geographic area, like a home, office, or group of buildings.WAN(wide are network) is a computer network that covers a broad area. For example, any network whose communications links cross-regional and metropolitan boundaries over a long distance.

                             Hope this helps you :)