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質問 1：
You are performing a site survey for a law firm in a multi-tenant, multistory building. The firm uses VOIP wireless phones and they plan to implement an 802.11g network. Since you are concerned about latency, you associate an 802.11g client with an 802.11g access point and then use a wireless protocol analyzer to capture wireless traffic on the 2.4 GHz channels. Among the expected management, control, and data frames displayed by the protocol analyzer you notice numerous CTS frames. Which of the following best explains what the presence of CTS frames on an 802.11g network indicates?
A. The presence of other VOIP phone systems in the area
B. The presence of 802.11b devices
C. That there is a wireless intrusion detection system in the building
D. That you will have no problem with the VOIP phones
正解：B
質問 2：
You are responsible for designing an 802.11n controller based wireless LAN for your organization using independent access point technology, The Information Technology team has decided the wireless LAN controllers should be installed on the core layer at the headquarters office location configured for centralized forwarding. Which statements are true concerns with respect to this type of installation (select TWO)?
A. Network core layer deployments should always use 10 Gigabit (or faster) Ethernet components.
B. S02.11n independent access points require the controller be installed at the network access layer only.
C. The WLAN controller at the core layer may be a bottleneck and limit scalability if not properly planned.
D. With centralized forwarding enabled all wireless traffic is tunneled to the WLAN controller that is connected to the network core layer.
正解：C,D
質問 3：
You have a client that would like you to design a large wireless network that will include access in remote locations. Requirements include:
The client uses ActiveDirectory as their credential-store and have AD servers at the data center and remote locations. What is the best way to design a wireless network where users could still be authenticated in case of a WAN-link failure at the remote site?
A. Install RADIUS servers at each remote location.
B. If the WAN link is severed, there is no way to reach primary or backup RADIUS servers.
C. Use the on-board RADIUS server in the AP as the secondary server and configure it to use the local LDAP server as its data-store.
D. Create a common login/password that could be hard coded into APs for emergency use.
正解：C
質問 4：
Your customer has a requirement that all APs used in the design must use external dipole antennas. Which of the following APs cannot meet this requirement?
A. AP6511
B. AP650
C. AP7131
D. AP5131
正解：A
質問 5：
You are drafting all of the final design documentation and the customer wishes to make a change at the last minute. He would like to add a wireless bridge connection between two of their buildings on a campus. The buildings are about 300 yards (275 meters) apart with clear line of site between them. Given this information and that the customer is interested in a cost effective solutions, what antenna type would best fit this application?
A. High gain Omni directional
B. Yagi
C. Dipole
D. Parabolic dish
正解：B
質問 6：
Motorola's "Site Survivability'' concept gives the wireless network the power of wireless computing on the edge. What does this mean?
A. With direct routing, QoS, security, and mobility services on the Access Point, the network keeps running even if there is a problem with the wireless controller or the wired network
B. Application-aware smart RF adjusts power and channel to provide best coverage if there is RF interference or a neighboring AP is having a problem.
C. If your T1/E1 link fails, Access Points or controllers can automatically switch over to a 3g network backhaul
D. RFID traffic load-balancing with rate limiting and bandwidth management
正解：A
質問 7：
You are designing a WLAN for a new customer and have been given a Customer Checklist for WLAN.
Given this checklist, please answer the test item(s) below.
If only the external walls were concrete and the internal walls are now sheetrock how would that affect the total AP count?
A. Total AP count would remain the same
B. Total AP count would increase
C. Total AP count would decrease
正解：C
質問 8：
You are working with a geographically dispersed client on the design of a new network. The RFP has identified that there are 50 locations and that each must:
The customer also needs to:
Assuming the client is interested in a cost effective and scalable solution, which Motorola Solutions Wireless Controller and Access Points would you implement?
A. RFS7000 with AP6532
B. RFS7000 with AP650
C. RFS6000 with AP650
D. RFS4000 with AP650
E. RF56000 with AP6532
正解：D
You are performing a site survey for a law firm in a multi-tenant, multistory building. The firm uses VOIP wireless phones and they plan to implement an 802.11g network. Since you are concerned about latency, you associate an 802.11g client with an 802.11g access point and then use a wireless protocol analyzer to capture wireless traffic on the 2.4 GHz channels. Among the expected management, control, and data frames displayed by the protocol analyzer you notice numerous CTS frames. Which of the following best explains what the presence of CTS frames on an 802.11g network indicates?
A. The presence of other VOIP phone systems in the area
B. The presence of 802.11b devices
C. That there is a wireless intrusion detection system in the building
D. That you will have no problem with the VOIP phones
正解：B
質問 2：
You are responsible for designing an 802.11n controller based wireless LAN for your organization using independent access point technology, The Information Technology team has decided the wireless LAN controllers should be installed on the core layer at the headquarters office location configured for centralized forwarding. Which statements are true concerns with respect to this type of installation (select TWO)?
A. Network core layer deployments should always use 10 Gigabit (or faster) Ethernet components.
B. S02.11n independent access points require the controller be installed at the network access layer only.
C. The WLAN controller at the core layer may be a bottleneck and limit scalability if not properly planned.
D. With centralized forwarding enabled all wireless traffic is tunneled to the WLAN controller that is connected to the network core layer.
正解：C,D
質問 3：
You have a client that would like you to design a large wireless network that will include access in remote locations. Requirements include:
The client uses ActiveDirectory as their credential-store and have AD servers at the data center and remote locations. What is the best way to design a wireless network where users could still be authenticated in case of a WAN-link failure at the remote site?
A. Install RADIUS servers at each remote location.
B. If the WAN link is severed, there is no way to reach primary or backup RADIUS servers.
C. Use the on-board RADIUS server in the AP as the secondary server and configure it to use the local LDAP server as its data-store.
D. Create a common login/password that could be hard coded into APs for emergency use.
正解：C
質問 4：
Your customer has a requirement that all APs used in the design must use external dipole antennas. Which of the following APs cannot meet this requirement?
A. AP6511
B. AP650
C. AP7131
D. AP5131
正解：A
質問 5：
You are drafting all of the final design documentation and the customer wishes to make a change at the last minute. He would like to add a wireless bridge connection between two of their buildings on a campus. The buildings are about 300 yards (275 meters) apart with clear line of site between them. Given this information and that the customer is interested in a cost effective solutions, what antenna type would best fit this application?
A. High gain Omni directional
B. Yagi
C. Dipole
D. Parabolic dish
正解：B
質問 6：
Motorola's "Site Survivability'' concept gives the wireless network the power of wireless computing on the edge. What does this mean?
A. With direct routing, QoS, security, and mobility services on the Access Point, the network keeps running even if there is a problem with the wireless controller or the wired network
B. Application-aware smart RF adjusts power and channel to provide best coverage if there is RF interference or a neighboring AP is having a problem.
C. If your T1/E1 link fails, Access Points or controllers can automatically switch over to a 3g network backhaul
D. RFID traffic load-balancing with rate limiting and bandwidth management
正解：A
質問 7：
You are designing a WLAN for a new customer and have been given a Customer Checklist for WLAN.
Given this checklist, please answer the test item(s) below.
If only the external walls were concrete and the internal walls are now sheetrock how would that affect the total AP count?
A. Total AP count would remain the same
B. Total AP count would increase
C. Total AP count would decrease
正解：C
質問 8：
You are working with a geographically dispersed client on the design of a new network. The RFP has identified that there are 50 locations and that each must:
The customer also needs to:
Assuming the client is interested in a cost effective and scalable solution, which Motorola Solutions Wireless Controller and Access Points would you implement?
A. RFS7000 with AP6532
B. RFS7000 with AP650
C. RFS6000 with AP650
D. RFS4000 with AP650
E. RF56000 with AP6532
正解：D
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この通りに行えば、必ず合格出来るようになってます。本MSC-121試験は非常に簡単なので頑張ってください。