Lớp 7

What is the stage of creating a list of requirements to evaluate the correctness of the project later?

• Requirements

• Planning      

• Review

• Design

What is a primary key in a database?

• A key used for opening the database

• A unique identifier for each record in a table

• A key used for encryption

• A type of encryption algorithm

What is a foreign key in a database?

• A key used for accessing remote databases

• A key used for encryption

• A column or set of columns in one table that references the primary key in another table

• A key used for data encryption

What is a database?

• A collection of physical hardware components

• A structured set of data stored in a computer system

• A type of software application used for word processing

• A network of interconnected computers

Which of the following is a characteristic of the relational database model?

• Data is stored in documents

• Data is stored in tables

• Data is stored in a hierarchical structure

• Data is stored as objects

What does the "Data Type" property define when creating a table in Access?

• The size of the table

• The color scheme of the table

• The type of data that can be stored in a field

• The alignment of text within the table

Which of the following data types can store alphanumeric characters of varying lengths in Access?

• Text    

• Date/Time           

• Number

• Currency

What is the purpose of setting a primary key when creating a table in Access?

• To limit the number of records in the table

• To sort the records alphabetically

• To uniquely identify each record in the table

• To calculate totals or averages

Which data type is appropriate for storing whole numbers in Access?

• Text     

• Currency 

• Number

• Date/Time

What does the "Required" property specify when creating a table in Access?

• Whether the field can contain null values

• Whether the field is automatically filled with default values

• Whether the field is mandatory for data entry

• Whether the field is read-only