To establish many-to-many relationship between two entities

Assignment Help Basic Computer Science

Reference no: EM132689129

1. The _______________ represent various components that a database represents, and the _______________ allows communication with the database.

component properties - database property

entity classes - database context class

facade classes - dataset classes

context classes - dataset component

2. Writing entity and database context classes before generating a new database is called

Code First development

Initial Class development

Database First development

Entity Relationship development

3. To establish a many-to-many relationship between two entities, you typically use a

composite entity

linking entity

foreign entity

context entity

4. If one customer can have many invoices, but each invoice can belong to only one customer, what type of relation exists between customers and invoices?

primary-to-foreign

many-to-many

one-to-one

one-to-many

5. You can configure the creation of database tables in each of the following ways except

configuration by convention

data attributes

Fluent API

JSON plugins

6. Which of the following commands would you use in the Package Manager Console if you want to revert a database to a previous migration?

Drop-Database

Add-Migration

Scaffold-DbContext

Update-Database

7. To avoid losing modifications of entity classes that are generated from a database, it's common to use

entity cloning

code segmentation

direct injection

partial classes

8. The concurrency option in EF Core that throws an exception whenever a row has been changed since its last retrieval is called

refusal concurrency

optimistic concurrency

pessimistic concurrency

last in wins

9. Providing basic CRUD operations for each class and further abstracting their details with use of an interface is a common design pattern named the

requisition pattern

chain of responsibility pattern

observer pattern

repository pattern

10. The unit of work pattern provides a central class that allows several _____________ objects to share a DB context.

observer

requisition

chain of responsibility

repository

11. To commit insert, update, and delete operations on a DbSet<T> object to the database, what method of the DbContext class must you call?

Disconnect()

Update()

SaveChanges()

Commit()

12. To begin encapsulating code for data access, it's often helpful to begin by adding extention methods to the interface named

ILINQable<T>

IQueryable<T>

IEnumerable<T>

IRunnable<T>

Reference no: EM132689129

Questions Cloud

Relation to most public of mediums : Privacy is a concept that is rapidly evolving in relation to the most public of mediums, Internet, which became even more super-charged with social networking

Describe your company disaster recovery plan : Describe your company's disaster recovery (DR) plan. Where does the company store its back-up data?

What functionalities those systems are serving : Describe your company's mission-critical system(s). Please include the following information. What functionalities those systems are serving?

Accessible on web servers : Debugging functions that are enabled or accessible on web servers or the use of self-signed certificates and/or default certificates.

To establish many-to-many relationship between two entities : Writing entity and database context classes before generating a new database is called. To establish a many-to-many relationship between two entities,

Evaluate the history of cryptography : Evaluate the history of cryptography from its origins. Analyze how cryptography was used and describe how it grew within history.

Vulnerability refers to known weakness of asset : A vulnerability refers to a known weakness of an asset (resource) that can be exploited by one or more attackers.

Do bit of research on penetration testing techniques : Do a bit of research on penetration testing techniques. Five network penetration testing techniques

Decide on information security standard : Decide on an Information Security Standard or Compliance Law that is applicable to your fictional organization

User Account

All Pages