DBMS Day 4
Quiz
•
Computers
•
University
•
Practice Problem
•
Hard
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A top-to-bottom relationship among the items in a database is established by a_____
Hierarchical schema
Network schema
Relational schema
All of the mentioned
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Collections of operations that form a single logical unit of work are called __________
Views
Networks
Units
Transactions
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Execution of translation in isolation preserves the _________ of a database
Atomicity
Consistency
Durability
All of the mentioned
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not a property of a transaction?
Atomicity
Simplicity
Isolation
Durability
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following properties ensures that a transaction brings the database from one consistent state to another?
Atomicity
Consistency
Isolation
Durability
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following properties ensures that concurrent execution of transactions does not interfere with each other?
Atomicity
Consistency
Isolation
Durability
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a distributed database?
A database that is stored across multiple physical locations or computer systems.
A database that is optimized for handling large volumes of data
A database that uses a hierarchical data model for organizing data.
A database that is accessed by multiple clients through a server.
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