As an experienced technician, you are responsible for Technical Support. A customer calls to ask the best signal level and noise level for cell phone. How to respond?（）

What amount of cell overlap ensures smooth roaming for wireless endpoints?（）

What is the recommended radius of a cell for a voice-ready wireless network?（）

You are the Cisco Network Designer. Which of these is least important when determining how many users a NAS can support?（）

Which of these statements is true of routing protocols in a hub-and-spoke IPsec VPN topology?（）

Cisco Express Forwarding (CEF) is mainly used to increase packet switching speed, reducing the overhead and delays introduced by other routing techniques, increasing overall performance.Which of the following concerning CEF is recommended by Cisco?（）

In which tunnel-less VPN topology do group members register with a key server in order to receive the security association necessary to communicate with the group?（）

What is the recommended practice when considering VPN termination and firewall placement?（）

One of your customers has deployed a Layer 3 gateway in the untrusted network. Which gateway mode is appropriate for this customer?（）

As an experienced technician, you are responsible for Technical Support. Which of the following descriptions is correct about the characteristic of SLB one arm mode?（）