An organization plans to implement multifactor authentication techniques within the enterprise network architecture. Each authentication factor is expected to be a unique control.
Which of the following BEST describes the proper employment of multifactor authentication?

A bank is experiencing a DoS attack against an application designed to handle 500IP-based sessions. in addition, the perimeter router can only handle 1Gbps of traffic. Which of the following should be implemented to prevent a DoS attacks in the future?

A company wants to ensure confidential data from storage media is sanitized in such a way that the drive cannot be reused. Which of the following methods should the technician use?
Shredding

Which of the following encryption methods does PKI typically use to securely project keys?

An organization needs to implement more stringent controls over administrator/root credentials and service accounts Requirements for the project include:
Check-in/checkout of credentials
* The ability to use but not know the password
* Automated password changes
* Logging of access to credentials
Which of the following solutions would meet the requirements?