What are two main elements of a network design RFP? (Choose two.)

You are designing a WAN implementation to securely connect two remote sites to the corporate office. A public Internet connection will be used for the connections.
Which statement is true in this situation?

You are evaluating an existing network to determine requirements for a network upgrade.
In this scenario, which statement is true?

What are two tiers used in a traditional data center design? (Choose two.)

What are two features used to enable high availability? (Choose two.)