642-732 무료 덤프문제 온라인 액세스

A customer is experiencing slower client data throughput than the data rate setting. Which two wireless characteristics are the primary contributing factors? (Choose two.)

• A.Lower data rates decrease overall throughput.
• B.Broadcast and multicast are sent at the lowest associated data rate.
• C.All clients on a given access point share the bandwidth of the channel.
• D.Overlapping channels cause co-channel interference.
• E.802.11 acknowledges all packets, which halves throughput on the channel.
• F.Clients that are farther from the access point connect at a slower data rate.

A network engineer is conducting a Layer 1 site survey using a spectrum analyzer. Which four RF sources can be detected? (Choose four.)

• A.analog TV
• B.microwave
• C.Bluetooth
• D.cordless phones
• E.jammers
• F.GSM phone
• G.3G phone
• H.infrared

For better compatibility with 802.11n clients, which 802.11a channels should be utilized?

• A.UNII-1 Band
• B.UNII-2 Band - extended channels
• C.UNII-3 Band
• D.ISM Band

Which three post-installation checks should an engineer perform after a new wireless installation? (Choose three.)

• A.Conduct a passive and active survey of each media type in use.
• B.Verify that the cell overlap is 20%.
• C.Check for adequate signal levels as surveyed.
• D.Check for co-channel interference.
• E.Conduct a passive survey of 802.11a and 802.11b.
• F.Verify that the minimum data rate is 24 Mbps.

When discussing a WLAN site survey project with a customer, which four things do you need to know about the scope of the project before starting? (Choose four.)

• A.How many members of the customer IT staff will require training?
• B.Is this a new project, an extension, or a modification to an existing WLAN?
• C.Is the project funded?
• D.How many user groups will need to be interviewed?
• E.Will site survey engineers need to shadow user as they perform their work duties?
• F.Can the survey be accomplished in the time allotted?
• G.Internally, who or which group is driving this project?
• H.How many APs and controllers are projected to be needed?