A+ 220-1102 Passing Score

The chmod command in Unix/Linux systems changes file and directory permissions, allowing a technician to control read, write, and execute rights for users and groups. sudo allows running commands with elevated privileges but doesn’t directly change permissions. mv moves or renames files, and pwd prints the current working directory. Core 2 exam content covers basic Linux command-line utilities where chmod is essential for managing permissions to secure files and directories.

Pop-up blockers can sometimes prevent essential pop-up windows required by websites to display transaction details.

Clear the browser cache: Helps with loading issues but not specific to pop-ups.

Disable the pop-up blocker: The correct solution, as it allows the blocked pop-up to be displayed.

Configure private browsing: Prevents storing browsing data but does not affect pop-ups.

Verify valid certificates: Ensures secure connections but does not resolve pop-up issues.