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Motorola Solutions MSC-121 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Security & Performance | 20% | - RF interference management - Quality of Service (QoS) design - Authentication and encryption standards |
| WLAN Fundamentals | 20% | - IEEE 802.11 standards and amendments - RF principles and propagation - Frequency bands and channel planning |
| WLAN Design Methodology | 25% | - Coverage and capacity planning - Requirements gathering and site survey - Motorola WLAN portfolio and hardware selection |
| WLAN Infrastructure Design | 25% | - Access point placement and configuration - WLAN architecture and controller models - Power and cabling design |
| Validation & Optimization | 10% | - Post-deployment verification - Scalability and future-proofing - Troubleshooting common design issues |
Motorola Solutions Design WLan Solutions Sample Questions:
Question #1
Your customer is requiring your network design to include 3G WWAN backhaul as a failover option. Which of the following controller/AP options below would you recommend (select TWO)?
A. RFS7000 with AP7131 access points
B. RFS7000 with AP6211 access points
C. RFS6000 with AP650 access points
D. NX9000 with AP6532 access points
Question #2
When Proxy ARP is enabled on the WLAN infrastructure, ARP messages originating from the wired network are:
A. Sent when the mobile device sends request to the wireless switch
B. Always sent to the mobile device
C. Never sent to the mobile device
D. Sent upon initial power-up of the mobile device
Question #3
A customer has recently installed a new 802.11n wireless infrastructure consisting of an RFS6000 and 25 AP7131N APs. They have configured the system to take advantage of all of the 802.11n features, including channel bonding, beam forming and MIMO. They also purchased new laptops with 802.11a/b/g/n radios to take advantage of the technology to the fullest. After configuring this new system on the 802.11b/g/n frequency band, the customer is experiencing multiple wireless problems due to interference. What can they do to fix this (select TWO)?
A. Change the data rates to only support 802.11n speeds
B. Remove the channel bonding feature of 802.lln in the 2.4 GHz frequency band
C. Configure the wireless system and laptops to use the 802.11a/n frequency band
D. Lower the transmit power on the APs
Question #4
When a wireless client device connects to an access point several frames are exchanged between the two devices that will allow for a layer 2 connection to complete. Shown in the illustration is a packet capture of some of the frames that are exchanged. What type of scanning is shown in the illustration?
A. Port Scanning
B. Passive Scanning
C. Authentication Scanning
D. Active Scanning
Question #5
A common WLAN design mistake occurs when AP transmit output power is set higher than the transmit capabilities of the client devices. This situation results in frequent dropped connections and unpredictable connectivity. Which of the following terms describes this condition?
A. S02.3af PoE
B. Weak node
C. Power asymmetry
D. Power spiral
Solutions:
| Question #1 Correct Answer: A,C | Question #2 Correct Answer: C | Question #3 Correct Answer: B,C | Question #4 Correct Answer: D | Question #5 Correct Answer: C |
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