Refer to the exhibit. Which two statements about the topologies shown are correct?（）

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

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?（）

An organization hires a contractor who only needs access to email and a group calendar. They do not need administrator access to the computer. Which VPN model is the most appropriate?（）

What is the term for a logical SAN which provides isolation among devices physically connected to the same fabric?（）

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?（）

Please match the Cisco STP enahancement term to its definition.（）(1) BPDU guard(2) PortFast(3) BackboneFast(4) Loop guard(5) Root guard(a) shuts down a port that receives a BPDU when enabled(b) cuts convergence time by mas-age for indirect failure(c) prevents the aliernate or root port from being designated in absence of BPDUs(d )causes Layer 2 LAN interface access port to immediately enter the forwarding state(e) helps prevent bridging loops due to jni-directional link failures on point-to-point links

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?（）

Which of the following is the primary consideration to scale VPNs?（）

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