How can you protect against client$-$side injection attacks? Check all that apply.

Use a SQL database

Utilize strong passwords

Use data sanitization

Use input validation.

An attacker uses software that continuously tries different combinations of characters to gain access to something password protected. What kind of attack is this?

A brute$-$force attack

A POD $($Ping of Death$)$ attack

A dictionary attack

A baiting attack

$3.$ Which of these are devices that let employees enter buildings and restricted areas and access secured computer systems at any time, day or night?

Badge readers

Bollards

Equipment locks

Door locks