單項(xiàng)選擇題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?（）

A. -40dBm signal and -90dBm noise
B. -50dBm signal and -90dBm noise
C. -30dBm signal and -90dBm noise
D. -20dBm signal and -90dBm noise


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1.單項(xiàng)選擇題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?（）

A. This out-of-band approach supports scaling
B. SLB is not inline.
C. Mode is not as common as bridge or routed mode.
D. Return traffic requires PBR, server default gateway pointing to SLB, or client source NAT.

3.單項(xiàng)選擇題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?（）

A. Use default Layer 4 hash in core.
B. Use default Layer 3 hash in distribution.
C. Use default Layer 4 hash in distribution.
D. Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.

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

A. bandwidth
B. number of plug-ins per scan
C. total number of network devices
D. number of checks in each posture assessment

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Which two of these are advantages of placing the VPN device parallel to the firewall?（）

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Client traffic is being bridged through LAN interfaces on two WLCs. Which roaming option will keep them on the same IP subnet?（）

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