You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?

• A.Testing a constant conversation orhandset tone while roaming from area to area, or performing an active survey
• B.Configuring DSCP-to-802.11e QoS maps on the handset for each access category.
• C.Verifying the VHT functionality to handle the call volume incurred by a single VoIP phone call.
• D.Performing protocol analysis with a single wireless adapter that is scanning all channels in use

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You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but is does not even see 5 GHz APs. While evaluating the issue, you determine that this problem is happening for all of the laptops of this model in the organization. Several other tablets connect on channel 48 and channel
52 in the same work areas. What is the likely problem?

• A.The clients are configured to use WPA and 5 GHz channels only support WPA2.
• B.The client drivers are faulty and should be upgraded.
• C.The antennas in the laptop have insufficient gain to detect the 5 GHz signals.
• D.The access points are configured to disallow 5 GHz.

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Three access points are used within a facility. One access point is on channel 11 and the other two are on channel 1. The two access points using channel 1 are on either side of the access point using channel 11 and sufficiently apart so that they do not interfere each other when they transmit frames. Assuming no other Aps are in the vicinity, is CCI still a possibility in this network and why?

• A.No, because CCI only occurs in the 5 GHz frequency band
• B.Yes, because channel 11 loops around and causes CCI with channel 1
• C.No, because the Aps are far enough apart that no CCI will occur
• D.Yes, because the client devices connected to one of the channel 1 APs will transmit frames that reach the other channel 1 AP as well as

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When implementing PoE, what role is played by a switch?

• A.Power splitter
• B.PSE
• C.PO
• D.Midspan injector

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You support a WLAN using dual- band 802.11ac three stream access points. All access points have both the 2.4 GHz and 5 GHz radios enabled and use 40 MHz channels in 2.4 GHz. A manager is concerned about the fact that each access point is connected using a 1 Gbps Ethernet link. He is concerned that the Ethernet link will not be able to handle the load from the wireless radios. What do you tell him?

• A.His concern is invalid because the AP will compress all data before transmitting it onto the Ethernet link.
• B.His concern is valid and the company should upgrade all Ethernet link to 10 Gbps immediately.
• C.His concern is valid and the company should immediately plan to run a second 1 Gbps Ethernet link to each AP.
• D.Due to 802.11 network operations and dynamic rates used by devices on the network, the two radios will likely not exceed the 1 Gbps Ethernet link .

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