Which of the following components MUST be trusted by all parties in PKI?

Which of the following should Matt, a security administrator, include when encrypting smartphones? (Select TWO).

When checking his webmail, Matt, a user, changes the URLs string of characters and is able to get into another users inbox. This is an example of which of the following?

Elliptic curve cryptography: (Select TWO)

Which of the following is the below pseudo-code an example of?
IF VARIABLE (CONTAINS NUMBERS = TRUE) THEN EXIT

Which of the following would an antivirus company use to efficiently capture and analyze new and unknown malicious attacks?

Why is it important for a penetration tester to have established an agreement with management as to which systems and processes are allowed to be tested?

A system administrator is using a packet sniffer to troubleshoot remote authentication. The
administrator detects a device trying to communicate to TCP port 49. Which of the following
authentication methods is MOST likely being attempted?

An administrator wants to minimize the amount of time needed to perform backups during the week. It is also acceptable to the administrator for restoration to take an extended time frame.
Which of the following strategies would the administrator MOST likely implement?

Which of the following can be used in code signing?