Crowdly

Can be symmetrical or asymmetrical

Is revertible

Can be used for reducing the size of the message

The produced result is always of the same size

Requires a key (cipher)

Please select items which refer to encryption process

Can be used for securing data

Can be symmetrical or asymmetrical

Is revertible

Can be used for reducing the size of the message

The produced result is always of the same size

Requires a key (cipher)

Please select items which refer to encoding process

Can be used for securing data

Can be symmetrical or asymmetrical

Is revertible

Can be used for reducing the size of the message

The produced result is always of the same size

Requires a key (cipher)

Providing a possibility to grant different permissions to different users

Choose the items that refer to purposes of DBMS

Data encryption and decryption

Automatically fixing of mistakes that appear when new data comes to the database

Preventing data from loss

Storing data in a proper way

Providing access to data for many users at one time

Transferring data using http protocol

Choose the items that refer to database models

Non-relational

Evolutional

Differntial

Sequential

Relational

Object-oriented

Document-oriented

Match the corresponding terms from the relational theory and the database design

Tuple

Row

Attribute

Relation

Column

Entity

Select the most appropriate type of relationship between entities when designing a database for a music library.

Order - Album

Customer - Order

Album - Song

User - Customer

Artist - Song

Artist - Album

Select the corresponding data type most suitable for given attribute

Date of opening

Price

Number of rooms

Phone

Name of the building

What is the role of a web browser in HTTP communication?

It only functions as a database storage

It initiates requests and displays the received responses

It acts as a server processing client requests

It encrypts all internet traffic by default

What is the purpose of the POST method in HTTP?

To send data to the server

To request metadata from a server

To delete a resource on the server

To retrieve data from the server