Buffers frames from the access point until it wakes to process the frames up the stack
Goes into hibernation mode until a Wake-on-LAN (WoL) signal is sent to all wireless clients by the AP
Devices compliant with the IEEE 802.11-2007 standard use which radio brands? (Choose 4)
902 - 928 MHz ISM band
5.725 - 5.875 GHz ISM band C. 2.4000 - 2.4835 GHz ISM band
5.470 - 5.725 GHz UNII band
5.15 - 5.25 GHz UNII band
What antenna technologies are used to help overcome null areas of RF coverage due to multipath? (Choose 2)
According to the 802.11-2007 standard, when is an ERP-OFDM access point required to respond to Probe Request frames from High Throughput (HT) stations?
Only when the Probe Request frames contain all basic data rates specified by the access point
Only when the Probe Request frames contain a blank SSID value
Only when the access point is configured for Open System authentication
Access points are always required to respond to probe requests
Only when the Probe Request frames contain the correct SSID value
How is throughput capacity scaled in a single channel architecture (SCA) WLAN system?
By placing APs that are on a single channel more closely together
By enabling multiple simultaneous client data streams on each radio within an AP
By increasing the radio density in the APs. which increases the number of available channel layers
By using downlink data compression and uplink flow control at the AP
By using a channel reuse pattern similar to multiple channel architecture (MCA) WLAN systems
What are two BSS modes specified the 802.11 Clause 20 (High Throughput) PHY? (Choose 2)
Reference: www.google.com.pk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&v ed=0CEkQFjAE&url= https%3A%2F%2Fmentor.ieee.org%2F802.11%2Fdcn%2F11%2F11-11-1391- 00-00ac-proposed- resolutions-to-lb-178-miscellaneous-
comments.docx&ei=GhafT6jrJY2UOrLB_dQP&usg=AFQjCNF8gRBv_qUq5N EMC6qIaFPkSrxcPQ(page 2)
ABC Company has a 5 GHz WLAN deployment using the UNII-2 and UNII-2e bands. DFS functionally is enabled as required by the regulatory domain. A VoWiFi station is associated to AP1, which is using channel 52. After detecting a radar signature on channel 52, AP1 sends a channel switch announcement and moves to channel 60. The VoWiFi station doesn’t receive the channel switch announcement. What is most likely to occur as a result of this scenario?
All APs in the ESS will change channels as well
The VoWiFi station will roam to a different AP that is using channel 52
An increase in frame retransmissions, causing voice latency
AP1 will send a reassociation request to the VoWiFi station on channel 52
Which authentication methods generate dynamic encryption keys as a by- product? (Choose 2)
HTTPS Captive Portal
The WLAN component shown in the exhibit is used for .
Connecting a lightning arrestor (gas discharge tube) to a grounding rod cable
Connecting an unterminated RF cable to an N-type female connector on an antenna
Adapting an amplifier with an RP-TNC male connector to an AP with an N- type male connector
Adapting an antenna with an SMA male connector to an AP with an N-type female connector
ABC Company is opening a new branch office that needs an 802.11 WLAN to support a mission critical application. The IT manager has considered implementing a remote office WLAN controller with controller-based APs instead of several autonomous APs. He has asked you about the primary differences between the two solutions. What statements define characteristics of WLAN controllers? (Choose 2)
Controller-based APs must be plugged directly into the WLAN controller, but autonomous APs can be plugged into Ethernet switches of any kind.
Controller-based APs download their firmware and configuration from the WLAN controller upon initialization, thus reducing management overhead.
Most controller-based APs support 802.3-2005, Clause 33 PoE, and some controller-based APs support the 802.3at PoE Plus standard.
The CAPWAP protocol currently allows controller-based APs from one vendor to be used with WLAN controllers from another vendor
If a WLAN controller is used, all attached controller-based APs must use the same WLAN profiles.
The IEEE 802.11-2007 standard specifies which channel access method as a part of the Hybrid Coordination function?
What facts are true regarding controllers and APs in a Split MAC architecture? (Choose 2)
A tunneling mechanism is used between the controller and AP.
Using centralized forwarding, controller-based APs do not tag Ethernet frames with VLAN identifiers.
With 802.1X/EAP security, the AP acts as a supplicant
Preauthentication support is required for fast/secure roaming.
All 802.11 data frames are forwarded to the controller for centralized handling.
What are some common specifications for 802.11 WLAN antennas? (Choose 3)
Power loss in dB
Return Loss Rating
Impedance in Ohms
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2 Question: 1 What word describes the bending of an RF signal as it passes between mediums of different density? A. Diffraction B. Reflection C. Refraction D. Diffusion E. Scattering Answer: C Question: 2 Which units of measure are used to describe relative power level changes? A. dBm B. dBi C. dB D. mW E. dBW Answer: B, C Question: 3 The IEEE standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, designed for use with pre-RSNA hardware. A. CCMP, TKIP B XEAP, WEP C. TLS, SSL D. CCKM, W E. PMK, GMK Answer: A Question: 4 The 802.1X framework provides _________ using EAP for _________ and very often providing _________. A. Dynamic encryption keys, authorization to network resources, authentication of client stations B. ization of access points, authentication of client stations, rotating encryption keys C. Access to network resources, authentication of network users, dynamic data encryption D. Port-based access control, mutual authentication between client stations and access points, management frame protection E. Authentication of network users, flexible data encryption, authorization of network resources F. Identity services, client remediation, guest access services Answer: C Question: 5 What is an advantage of using W2-Personal instead of WEP-128 as a security solution for networks? A. W2-Personal uses 802.1XEAP for authentication, and WEP-128 uses preshared keys. Page 1 of 34
3 B. W2-Personal is based on IEEE industry standards, but WEP is not. C. W2-Personal uses CCMP for encryption, and WEP-128 uses TKIP for encryption. D. Each station using W2-Personal uses a unique encryption key to encrypt data, but WEP- 128 stations all use the same encryption key. E. Only users that know the preshared key can view other stations' encrypted data when W2- Personal is in use. With WEP-128, this is not possible. Answer: D Question: 6 Given: ABC Company performs top-secret government contract work and has recently purchased an Wireless Intrusion Prevention System (WIPS) to enforce their "NO WIRELESS" network security policy. What attack will not be recognized by the WIPS? A. Deauthentication B. MAC Spoofing C. Protocol Jamming D. Eavesdropping E. RF Jamming Answer: D Question: 7 Given: Network users at a large machinery manufacturer have been asking the network administrator to implement an indoor WLAN. The network administrator and the network manager have called a meeting of several senior management personnel to discuss WLAN implementation before taking any site survey or implementation steps. The first order of discussion in the meeting is corporate policy concerning implementation and use of WLAN technology. What specific topics are appropriate in this policy meeting? A. Security risks and audits B. Government regulations C. User productivity impact D. Antenna types that should be used E. Permits and zoning requirements F. Vendor hardware recommendations Answer: A, B, C Question: 8 Given: The network administrator at XYZ Company recently attended a raining class on wireless security and realized that he still needs to update the corporate security policy to address WLAN technology. The network administrator is trying to remember some of the items that should be addressed in the security policy update, and has asked you to help. What topics would you suggest for the security policy update? A. Physical security of WLAN infrastructure devices B. Wireless intrusion monitoring and response procedures C. WLAN protocol analysis baseline documentation D. Strong password requirements for users and infrastructure equipment E. Training of the IT staff on WLAN operational security Answer: A, B, D, E Question: 9 Page 2 of 34
4 Given: Before performing a site survey for a hospital, the network manager notifies you that there is a connection-oriented, real-time medical application used across the hospital's wired network. This application will also be used on the WLAN once it is installed. Because the application is real-time, it is sensitive to service disruptions and latency. For this reason, it is particularly important to locate sources of RF interference, blockage, and dead spots. What can put the application at risk of time-outs? A. High patient density in a given area B. Long hallways C. Elevator shafts D. Metal mesh glass E. Intercom system Answer: C, D Question: 10 Given: ABC Company has hired you to perform an indoor site survey of their 7-story facility. ABC Company rents out unused space in their building to other companies, and the other companies use WLANs already. ABC Company wants all of the offices they occupy to be surveyed as part of the project. What actions should be recommended as part of the site survey project? A. Keep all ABC Company doors closed during the site survey. B. Find out if ABC Company's Ethernet switches support PoE. C. Locate wiring closets on each floor of ABC Company's building. D. Identify areas where ABC Company's AP signals should not reach. E. Inventory all current access points within ABC Company's building. Answer: B, C Question: 11 Given: You are an independent contractor, hired to perform an indoor site survey for ABC Hotel. The network will support both hotel staff and guest users. You are interviewing the network manager to gather business, performance, and security requirements for the future WLAN. What questions should you ask the IT manager? A. What are the aesthetic requirements for access point and sensor placement? B. What type of layer-2 security does the guest network profile require? C. Where are the RF dead zones located within the facility? D. What types of client devices will connect to the WLAN infrastructure? E. Are there any RFID tags in use at the hospital that would conflict with the WLAN? Answer: A, D Question: 12 Given: XYZ Company is planning to install a new WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. XYZ has hired you to perform the RF site survey. During the interview with the network manager, you are told that the new Ethernet edge switches will support VoIP phones and access points, both using , Clause 33 compliant PoE. After hearing this information, what immediate concerns do you note? A. VoIP phones and access points should never be powered by the same edge switch due to distortion. B. The edge Ethernet switches will need to support 802.3at PoE in order to support both access points and VoIP phones. Page 3 of 34
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CWNA: Certified Wireless Network Administrator Official Study Guide: Exam PW0-105 by David D. Coleman, David A. Westcott
Download CWNA: Certified Wireless Network Administrator Official Study Guide: Exam PW0-105
CWNA: Certified Wireless Network Administrator Official Study Guide: Exam PW0-105 David D. Coleman, David A. Westcott ebook: Wiley, John & Sons, orporatedFormat: pdfPage: 768ISBN: 9781118127797
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Whether you're interested in a new career path or just want to keep your networking skills up to date, consider the possibilities that the CWNA certification has to offer.
The CWNA certification has some important benefits including:
CWNA candidates are required to pass a single exam: ">PW0-104 on Wireless LAN Administration.
The exam is available in English only, currently costs $175 and is available through Pearson VUE testing centers.
The ">PW0-104 exam has 60 multiple choice questions and takes 90 minutes to complete. You are required to answer 70% of the questions correctly in order to become certified and your CWNA cert is valid for 3 years.
As for prerequisites, although there are no prior certifications required, you must have a basic understanding of networking concepts.
The main topics covered on the CWNA exam include:
There are 5 ways you can prepare for your CWNA exam:
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The CWNA certification is administered by CWNP (Certified Wireless Network Professional) however, there is no CWNP certification, or exam. CWNP is the program that develops certification exams for wireless technologies and their goal is to certify people on wireless networking.
Currently there are 5 certifications that CWNP offers:
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Contributor Kasia Lorenc
served as the editor-in-chief of the TrainSignal blog from 2007 - 2012. In addition to covering a variety of topics, including IT certification, training and technology news, Kasia was also responsible for the content strategy and website management at TrainSignal. You can connect with Kasia on Twitter kasialorenc.
Computer certification news about Microsoft's certification overhaul, new exams from Cisco, the expiration of more than 100 HP certification exams, and an update to the CWNA exam.
Microsoft Completely Revamps Certification Program
Microsoft recently changed virtually every element of its certification program. The MCTS and MCITP are being phased out, there's a new MCSE, the MCSD is back, and that's just for starters. There's a lot to know, but we've got you covered. For an over view of the changes, read: Welcome to the New Microsoft Certification Program. If you've got a Microsoft certification already, be sure to check out our Microsoft Old-to-New Certification Map.
CCIE Data Center Beta Available
A beta version of the written exam for Cisco's new CCIE Data Center certification is available May 1 - June 15, 2012. The beta costs $50. For exam topics, see Cisco's list of exam objectives. The full CCIE Data Center credential is scheduled to go live this September.
CCNA Service Provider Launched
Cisco's new CCNA Service Provider certification is now available. See the GoCertify CCNA SP page for exam requirements. Due to the recent launch of this Service Provider track, the Cisco Certified Internetwork Professional (CCIP) has been scheduled to retire October 29, 2012.
Expiration Dates Set for 100+ HP Certifications
As part of HP's transition to the ExpertONE certification program, more than 60 IT professional certifications and 40 Partner certifications will be retired on either June 30, 2012 or August 31, 2012. The full list and suggested upgrade paths are available on the HP ExpertONE website.
Certified Wireless Network Administrator Exam Updated
The foundation-level CWNA exam is being updated on May 4, 2102. The current exam (">PW0-104) will remain available through July 31, 2012. To view a document highlighting the changed objectives in the new (PW0-105) exam, see the CWNP website.