John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network. John is working as a root user on the Linux operating system. He wants to change the startup shell of Maria from bash to tcsh. Which of the following commands will John use to accomplish the task?
Each correct answer represents a complete solution. Choose all that apply.

Which of the following choices accurately describes how PGP works when encrypting email?

Which of the following ports is the default port for Layer 2 Tunneling Protocol (L2TP)?

You have a customer who wants to put wireless internet in his remote cabin. The cabin is many miles from any other building with internet connectivity or access points. What should you recommend?

At what point in the Incident Handling process should an organization determine its approach to notifying law enforcement?