IT

Question 1

What is data mining?

Answer 1

A tool which looks for trends or anomalies without advance knowledge

Question 2

What is the difference between e-commerce and e-business?

Answer 2

E-commerce is the marketing, buying and selling of products and services vi internet.

E-business uses internet to improve business performance through connectivity. This is more broad.

Question 3

What is batch processing

Answer 3

Grouping transactions by type.
Process is done periodically.
Batch is sequential.
Compute batch totals

Question 4

What are bits, bytes, fields?

Answer 4

Bits are 0s or 1s.

Bytes are groups of bits like 16, 32 or 64

Fields are like an invoice number. Numbers that mean something. A logical group of bytes.

Question 5

What are the computer units from small to large?

Answer 5

Bit: 3 characters 
Byte: 4 characters 
Field: 5 characters 
Record: 6 characters 
File: 4 characters 
Database: 8 characters

Question 6

What is OLTP?

Answer 6

An online transaction processing system

Question 7

System life cycle

Answer 7

Analysis design build test implement