
Databases h446 transaction processing

Quiz
•
Computers
•
12th Grade
•
Medium

Martin Highmore
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a transaction in a database system?
A method to backup data
A request to log into the database
A type of database
A single logical unit of work that may consist of multiple steps
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an example of a transaction with multiple steps?
Deleting a record from the database
Changing the database password
Transferring money from a current account to a savings account
Creating a new database
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key principle of transaction processing?
Transactions do not need to be logical units
Either all of the steps must happen, or none of them must happen
Transactions can be partially completed
Only the first step of a transaction needs to be successful
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes managing transactions more complex?
The use of older database technology
Simple database queries
Databases that only allow a single user
Databases supporting multiple users making concurrent processing requests
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is concurrent processing?
Processing transactions one after another
A type of database software
A method to lock database records
Handling multiple transactions at the same time
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is serialisation in the context of databases?
Deleting old transactions from the database
Backing up the database
Ensuring transactions are processed in a sequential order
Converting data into a series of bytes
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is record locking?
Preventing a record from being changed while it is being used by a transaction
A security measure to protect records from unauthorized access
Permanently deleting a record
Copying records to another location
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