16 Questions
What is data?
Data is a collection of distinct small units of information, which can be in the form of text, numbers, media, bytes, etc.
What is a database management system (DBMS)?
A database management system (DBMS) is system software for creating and managing databases.
What is the origin of the word 'data'?
The word 'data' is originated from the word 'datum' that means 'single piece of information.'
What is the purpose of a database management system?
The purpose of a database management system is to provide the users with the processes of defining, constructing, and manipulating the database for various applications.
What does a database management system enable end users to do?
A DBMS enables end users to create, protect, read, update, and delete data in a database.
What is the role of database systems?
Database systems are designed to manage large bodies of information.
What are the main disadvantages of DBMS in File Processing?
Data redundancy and inconsistency, Difficult in accessing data, Data isolation, Data integrity, Concurrent access is not possible, Security Problems
What are the advantages of DBMS?
Data Independence, Efficient Data Access, Data Integrity and security, Data administration, Concurrent access and Crash recovery, Reduced Application Development Time
What are the main fields where Database Applications lie?
Banking, Airlines, Universities, Sales, Online retailers, Manufacturing, Human resources
What is the function of the Query processor in a DBMS?
The query processor transforms user queries into a series of low-level instructions. It interprets the online user’s query and converts it into an efficient series of operations in a form capable of being sent to the run time data manager for execution.
What is the function of the Run time database manager in a DBMS?
The run time database manager is the central software component of the DBMS, which interfaces with user-submitted application programs and queries. It handles database access at run time and converts operations in user’s queries from the user’s logical view to a physical file system.
What are the two main functions of the Run time database manager?
It interfaces with user-submitted application programs and queries. It handles database access at run time and converts operations in user’s queries from the user’s logical view to a physical file system.
What are the main components of a DBMS?
Query processor, Run time database manager
Name two fields where Database Applications are commonly used.
Banking, Universities
What is the main concern of the database system mentioned in the text?
To ensure the safety of the information stored, despite system crashes or attempts at unauthorized access
What concept forms the focus of the book mentioned in the text?
Concepts and techniques for managing data
This quiz covers the fundamental concept of data in computing, including its forms, storage methods, and interchangeability. It provides an understanding of how data is a collection of distinct small units of information, originating from the word 'datum.'
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