When an array is used to implement a stack or a queue, no pointer members are required to link the stack or queue elements together because

What type of reconnaissance is a penetration tester performing if they are using tools that do not raise any alarms?

A. active B. passive C. invasive D. evasive

Hardware devices that have a ____ VPN endpoint handle all the VPN tunnel setup, encapsulation, and encryption in the endpoint.

A. passthrough B. concentrator C. built-in D. PPTP