Chpt 20 Flashcards
What are candidate keys?
A subset of attributes that can be used to uniquely identify any record in a table.
What is a primary key?
A key selected from the candidate keys of a table to uniquely identify the records in the table
What are foreign keys?
A key used to enforce relationships between two tables, also known as a referential key.
What does the ACID Model stand for?
Atomicity
Consistency
Isolation
Durability
What does the ACID model do?
It Steps are the basis for all database transactions.
What is concurrency
“Edit control” a preventive security mechanism that makes certain that the data in the database is always correct, or at least protected.
What are the three elements of DevOps?
Software Development
Quality Assurance
IT Operations
What control allows for the prioritizing of requests?
Request Control
It gives users a framework to request changes and developers to prioritize them.
What is the highest priority of the Agile development model?
Getting the customer early and continuous usable software.
What are the 5 stages of SW-CMM?
- Initiating
- Repeatable
- Defined
- Managed
- Optimized
