MSC-122 試験問題を無料オンラインアクセス

You have just installed a 2.4 GHz WLAN at a customers call center location which houses many phone support agents using cordless headsets, keyboards, and mice. The main purpose of the WLAN is to allow floor managers to communicate using VoWLAN and mobile tablet PCs as they move throughout the office complex. Customers are complaining that they are experiencing poor voice quality with numerous dropped calls even though you have verified that the signal strength maintains a minimum RSSI of -67 dBm everywhere within the customer premises. In addition, you have used a spectrum analyzer to measure the noise floor and found that it averages about -82 dBm. What is the most likely reason for the poor quality of the WLAN?

• A.Insufficient number of access points
• B.Insufficient SNR
• C.Too many client devices
• D.High Latency
• E.Inadequate RSSI

You have just conducted a throughput test using iPerf on a WLAN that shows a PHY signaling rate of 54 Mbps, however the average throughput rate shown in iPerf is only 23.5 Mbps. What is the most likely explanation for this condition?

• A.This throughput rate indicates excessive user activity.
• B.This throughput rate could indicate a mismatch between Wi-Fi confidentiality algorithms.
• C.This throughput speed is considered nominal.
• D.This throughput rate indicates excessive out-of-band interference such as nearby cell phone towers.

You have just received a call from a customer who explains that the mobile computers on his WLAN:
The IP address of the RFS controller is 192.168.0.2 and the IP address of the remote server is 192.168.2.117. Which of the following, when performed, would allow the mobile computers to reach the destination network?

• A.Add the following route: 255.255.255.255/24 192.168.0.1
• B.Add the following route: 0.0.0.0/0 192.168.0.1
• C.Add the following route: 0.0.0.0/0 192.168.1.1
• D.Add the following route: 192.168.0.1 255.255.255.0/24

You have upgraded an existing WLAN by replacing the existing autonomous dual-band APs with RFS controllers and thin dual-band 802.11n APs, You have created two Local VLANs and configured the next-hop Ethernet ports to use the same VLAN configurations. During testing you are able to connect successfully to either VLAN but you are not able to PING from the first VLAN to the second VLAN. Which of the following is one possible reason for this condition?

• A.DHCP services have been configured for both Local VLANs
• B.There is no Layer 2 switch connecting the two VLANs
• C.No default gateway has been assigned to the client device associated with the Local VLAN
• D.The Local VLAN has not been configured on every access point

You are deploying a new system and are creating the RF Domain(s). Which of the following options would you use to group the APs into the same domain?

• A.By name, so they can be easily sorted in the tree view of the controller.
• B.By VLAN, where all APs are on the same subnet.
• C.By site, which can be a location where the group of installed APs can hear each other's beacons.
• D.By deployment phase, so configurations can be accidentally pushed to newly installed APs.