Magda is setting up a database to help manage inventory for the new store she is opening. She uses a primary key to $\_\_\_\_\_.$

Question $2$ options:

encrypt the database with a password

compress the file so she can store it on a flash drive

uniquely identify each record in a table

set certain fields as required

Question $3(1$ point$)$

Daniel decides to use a database system to avoid the issue of data redundancy, which occurs when $\_\_\_\_\_\_.$

Question $3$ options:

there are two primary keys in a table

you cannot merge two tables into one

there are multiple database administrators

data is stored in more than one place

Question $4(1$ point$)$

Government agencies share information with a wide audience using a database service, which acts as a$/$n $\_\_\_\_\_\_.$

Question $4$ options:

portal for a database

user authenticator

decryption system

research engine