One unique feature of index file is that it contains 

Which of the following file organization requires a primary key 

Ensuring the correctness and consistency of data is referred to as data

In distributed database management system, breaking a relation into smaller relations is known as

(a)What is teleconferencing?

(b) State four uses of automated Teller Machine (ATM)

(c)(i) Give the function of a modem

(ii) List two means of transmitting information.