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Nortel 920-270 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Capacity & Voice over WLAN Design | 20% | - User density and throughput planning - Roaming design and latency requirements - VoWLAN requirements and handset support |
| Topic 2: RF Planning & Site Survey | 25% | - RF principles, frequencies, channels, and power levels - Site survey methodology and tools - Obstacle mapping and interference mitigation - Coverage planning and signal strength requirements |
| Topic 3: Security & Authentication | 15% | - RADIUS, EAP, and 802.1X authentication - WPA/WPA2, TKIP, AES encryption - MAC filtering and SSID segmentation |
| Topic 4: Network Integration & Advanced Features | 20% | - DHCP, VLAN, and IP addressing planning - WMS planning tool usage and configuration - Mesh deployment and portal/point design - High availability and redundancy design |
| Topic 5: WLAN 2300 Rls. 7.0 Architecture & Components | 20% | - WLAN Management System (WMS) components - WLAN Security Switch (WSS) models and capabilities - Access Points (AP) types and deployment modes |
Nortel WLAN 2300 Rls. 7.0 Planning and Engineering Sample Questions:
A site survey for a Wireless LAN site has been completed. Given the configuration and building materials within the facility, it is expected that a high number of access points (AP) in close proximity will be required to ensure adequate coverage. The design team is concerned with channel overlap due to the number of AP required and has determined that
802.11a will be used. Which rationale supports this choice?
- A. 802.11a uses non-overlapping channels while 802.11b does not.
- B. 802.11a covers more distance than 802.11b and requires fewer APs.
- C. 802.11a is better able to penetrate dense building materials than 802.11b.
- D. 802.11a has more non-overlapping channels than 802.11b.
Correct Answer: D 🗳️
A customer is reviewing the server requirements for their WLAN. They want to know the specifications for a DHCP server, believing they may be able to reuse an existing server for this purpose. Under which condition is the DHCP server optional?
- A. when third-party access points are being deployed
- B. when the 2332 (APs) are directly connected to a security switch
- C. when the DHCP server is located inside the firewall
- D. when the DHCP server is located outside the firewall
Correct Answer: B 🗳️
What is one way the WLAN Security Switch (WSS) offloads the processing burden of the AAA server?
- A. The WSS consolidates the number of APs by entering WSS as AAA clients.
- B. The WSS supports VLAN pass through.
- C. The WSS uses the encryption keys provided by the AAA server.
- D. The WSS processes MAC addresses.
Correct Answer: A 🗳️
A customer is configuring a network for voice over Wireless LAN which contains a Meridian
1 Call Server, a 2245 IP Telephony, a TFTP server, and 6120/6140 handsets. Which action regarding how voice traffic is prioritized over the WLAN is true?
- A. Use access point forwarding queues.
- B. Enable the WMM in the radio profile.
- C. Create an ACL to change the CoS value of SVP.
- D. Modify the ToS value of the packet.
Correct Answer: C 🗳️
A large business operation has an existing wired network with subnets in the business office and showroom. They wish to extend wireless access to the warehouse. The customer does not have wireless access anywhere else in its network. There are a number of mobile users who move to and from the business office, showroom, and warehouse with customers. Which WLAN mode of operation is best suited to these mobile users?
- A. Infrastructure Wireless LAN for roaming
- B. Infrastructure Wireless LAN
- C. Ad Hoc Wireless LAN
- D. Ad Hoc Wireless LAN for roaming
Correct Answer: B 🗳️
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