單項(xiàng)選擇題Lafeyette Productions is looking for a new ISP that has improved availability, load balancing, and catastrophe protection. Which type of ISP connectivity solution would be best?()

A. single run
B. multi-homed
C. stub domain EBGP
D. direct BGP peering


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B. NBAR examines data in Layers 3 and 4.
C. NetFlow examines data in Layers 3 and 4.
D. NBAR examines data in Layers 2 through 4.

3.單項(xiàng)選擇題Why is STP required when VLANs span access layer switches?()

A.to ensure a loop-free topology
B.to protect against user-side loops
C.in order to support business applications
D.because of the risk of lost connectivity without STP
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4.單項(xiàng)選擇題In a VoWLAN deployment, what is the recommended separation between cells with the same channel?()

A.19 dBm
B.7 dBm
C.10 dBm
D.6 dBm
E.5 dbm to 10 dBm

5.單項(xiàng)選擇題What is a virtual firewall?()

A.another name for a firewall deployed in routed mode
B.another name for a firewall deployed in transparent mode
C.a separation of multiple firewall security contexts on a single firewall
D.a firewall that, when deployed in routed mode, can support up to 1000 VLANs per context
E.a firewall that has multiple contexts, all of which share the same policies (such as NAT and ACLs)

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