A company wishes to have a wireless signal broadcast only through a specific stretch of a highway tunnel. Which of the following measures will accomplish this?

A system administrator is implementing an IDS on the database server to see who is trying to access the server. The administrator relies on the software provider for what to detect. Which of the following would MOST likely be installed?

Management has decided that they want a high level of security. They do not want Internet requests coming directly from users. Which of the following is the BEST recommendation?