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Question:
i) Explain the terms data warehousing and data mining.
ii) Discuss the importance of the following security principles that a digital firm should amongst others, normally implement: Authentication, Availability and Confidentiality.
iii) What is the importance of an Intranet in a Digital firm.
iv) How should an organisation acquire and manage the firm's hardware and software assets.
v) How can information systems help people working in a group make decisions more efficiently?
Explain the concept of deadlock Yes. It can direct to deadlock. Suppose that a batch of frames arrived correctly and were accepted. Then receiver will advance its window. Now s
Define DBMS? DBMS: database management system (DBMS) is computer software designed for the reason of supervision databases based on a variety of data models.
what are the limitations of dbms?
Run the following queries. For each query show 1) What you expect the output to be based upon the data 2) the SQL code and 3) the output running the query in Oracle. 1. Show all c
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Insulation between conceptual and physical structures It can be defined as: 1. The Database Administrator should be capable to vary the storage structures without affectin
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
WHAT IS SQL
A Distributed Transaction Let us demonstrate the concept of a distributed transaction by considering a banking system having of three branches located in 3 different cities. Ev
Describe identifying relationship? Identifying relationship: It is relationship among strong entity and a weak entity it is represented through a doubly outlined diamond in C
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