Chris is an information security professional for a major corporation and, as he is walking into the building, he notices that the door to a secure area has been left ajar. Physical security does not fall under his responsibility, but he takes immediate action by closing the door and informing the physical security team of his action. What principle is Chris demonstrating?

Which protocol is used when sending files as attachments by e-mail?

A) Simple Mail Transfer Protocol (SMTP) B) Post Office Protocol (POP) C) Multipurpose Internet Mail Extensions (MIME) D) User Datagram Protocol (UDP)

A reason for passing a pointer to a function is

A) to avoid the overhead of copying large data structures. B) to allow the called function to modify a variable accessible to the calling function. C) to allow easy access to data in the function that is being called. D) A and B are both true. E) None of the above