Motorola Solutions Design WLan Solutions 認定 MSC-121 試験問題:
1. You are tasked with designing a WLAN wireless network based on the following criteria.
The client would like a cost effective solution that has the ability to scale. Which of the following would you recommend?
A) 1 RFS7000 in the NOC and 1000 RFS4000 at each site
B) 10 RFS6000 controllers with 10 RFS6000 redundant controllers in the NOC
C) 1 NX9000 controller with 1 NX9000 redundant controller in the NOC
D) 6 RFS7000's controllers with 6 RFS7000's redundant controllers in the Network Operations Center (NOC)
2. You are a computer network consultant at a small medical office and responsible for the design and deployment of the IEEE 802.11b/g WLAN. Some of the users of the WLAN are complaining about the performance of the network. You use a layer 2 WLAN analyzer to view the frames traversing the wireless medium to see if you can determine the problem. After careful examination of the data recorded you notice a significant amount of CTS-to-Self frames. What is a potential reason for the high number of these frame types?
A) The access points are in OFDM only mode
B) The access points are in ERP protection mode
C) The access points support Quality of Service
D) The access points are in HR/DSSS only mode
3. You are testing a 2.4 GHz, 802.11n AP configured to use WPA-PSK. You have successfully associated two wireless clients to the AP. When you check the link status you notice the connection speed is limited to 54 Mbps. How should you interpret these findings?
A) You are using pre-Draft 2.0 802.lln equipment
B) 54 Mbps has been configured as the highest Basic (mandatory) Rate on your access point.
C) TKIP is limited to a 54 Mbps PHY rate
D) 802.11n has not been configured for Greenfield mode
4. When Proxy ARP is enabled on the WLAN infrastructure, ARP messages originating from the wired network are:
A) Sent upon initial power-up of the mobile device
B) Always sent to the mobile device
C) Sent when the mobile device sends request to the wireless switch
D) Never sent to the mobile device
5. The centralized WLAN is actually a hub-and-spoke architecture that requires backhaul of virtually all wireless traffic to a controller (the hub). This hub-and-spoke architecture can create costly scalability and performance issues for$02.11n networks. Motorola's WiNG 5 WLAN 802.11n capable distributed architecture is designed to overcome these challenges.
Some of the challenges are listed below:
Which of the following is another Hub and Spoke challenge that is addressed by the WiNG 5 architecture?
A) Extended seamless roaming from mobile devices with no latency
B) Dependent networks can only scale to the processing limitations of the controller and available bandwidth of the network.
C) Eliminates the need for a controller in large networks
D) Non Peak Application bandwidth down time
質問と回答：
| 質問 # 1 正解： C | 質問 # 2 正解： B | 質問 # 3 正解： C | 質問 # 4 正解： D | 質問 # 5 正解： B |
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