___________ encryption uses a single, private key to both encrypt and decrypt data

Which of the following are benefits of using VPNs? (Choose three.)

a. Cost savings b. Complexity c. Security d. Scalability e. Adaptability

The initialization and increment expressions in a for statement can be comma-separated lists that enable you to use ________.

a) multiple initialization expressions b) multiple increment expressions c) multiple initialization expressions and/or multiple increment expressions d) neither multiple initialization expressions nor multiple increment expressions