PW0-105 Online Practice Questions and Answers

Given:

You were previously on-site at ABC's facility to conduct a pre-deployment RF site survey. The WLAN has

been deployed according to your recommendations and you are on-site again to perform a network

validation.

When performing this type of post-deployment RF site survey for VoWiFi, what are two steps that must be

performed? (Choose two)

A. Coverage analysis to verify appropriate coverage and roaming boundaries

B. Spectrum analysis to locate and identify RF interference sources

C. Hidden node analysis to identify and relocate existing hidden nodes

D. Protocol analysis to discover channel use on neighboring APs

E. Application analysis with an active phone call on a VoWiFi handset

Given: XYZ Corporation is experiencing connectivity problems with their existing building-to-building bridge link. A concrete wall on the roof of one building is partially blocking the Fresnel Zone, and the connection is dropping many frames. The administrator moves the antenna to an area not obstructed by the concrete wall and then realizes the RF cable cannot reach the new location.

If an extension cable is added to move the antenna, what are the likely results?

A. The data throughput rate will increase because VSWR will decrease.

B. The Equivalent Isotropically Radiated Power (EIRP) will decrease.

C. The antenna's azimuth beamwidth will decrease.

D. The size of the Fresnel zone will increase.

E. The likelihood of a direct lightning strike will increase.

In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network bandwidth (e.g. 130 Mbps) when multiple clients are actively exchanging data with the AP? (Choose two)

A. Radio receiver hardware cannot process data as quickly as it can be transmitted.

B. Half of the bandwidth is allocated to uplink traffic and half to downlink traffic.

C. The DCF and EDCA coordination functions require backoff algorithms

D. WLAN devices cannot detect collisions and must receive positive frame acknowledgment.

E. WLANs rely on the CSMA/CD protocol and must wait a collision detection period after each frame is transmitted.

Given: ABC Company has hired you to perform an indoor site survey of their 7-story facility. ABC Company owns the building and rents out unused floors (floors 2 and 4) to other companies, and the other companies use

802.11 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? (Choose two)

A. Verify that RF signals from ABC's APs are not penetrating outside the perimeter of the building.

B. Determine how much signal strength is bleeding between floors.

C. Locate wiring closets on each floor occupied by ABC Company.

D. Identify security best practice violations on neighboring WLANs.

E. Verify that ABC's APs are not directly above or below APs on adjacent floors.

What term correctly completes the following sentence?

In an IEEE 802.11 frame, the IP packet is considered by the MAC layer to be a(n) _________.

A. MAC Service Data Unit (MSDU)

B. MAC Protocol Data Unit (MPDU)

C. Bridge Protocol Data Unit (BPDU)

D. PLCP Service Data Unit (PSDU)

E. PLCP Protocol Data Unit (PPDU)

What factors are likely to cause the greatest impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS? (Choose three)

A. Use of WEP or TKIP for encryption instead of CCMP

B. Use of passphrase authentication instead of 802.1X/EAP authentication

C. Increasing the beacon interval from 100 to 200 (TUs)

D. RF interference from more than 10 nearby Bluetooth transmitters

E. Increasing or decreasing the number of spatial streams in use by the client station and AP

F. Configuring the AP to perform off-channel IDS scans for rogue devices for 50 ms out of every 20 seconds

Given: Joe runs a small hotel, and as a value added service for his customers he has implemented a Wi-Fi hot-spot. Joe has read news articles about how hackers wait at hot-spots trying to take advantage of unsuspecting users. Joe wants to avoid this problem at his hotel.

What is an efficient and practical step that Joe can take to decrease the likelihood of active attacks on his customers' wireless computers?

A. Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches

B. Require EAP-FAST authentication and provide customers with a username/password on their receipt

C. Implement an SSL VPN in the WLAN controller that initiates after HTTPS login

D. Enable station-to-station traffic blocking by the access points in the hotel

What statements about the SSID are true? (Choose two)

A. The SSID is a security session identifier used in RSNs.

B. The SSID must be included in an association request frame.

C. The SSID is an alphanumeric value assigned to device manufacturers by the IEEE.

D. The SSID is a pseudo-random number assigned to each client by an AP.

E. The SSID is an alphanumeric value with a maximum length of 32 octets.

F. When configuring a new network, creating an SSID is optional.

Given:

As a consultant, you have been hired by ABC Company to implement an outdoor WLAN connection

between two buildings that are 2 kilometers (1.24 miles) from each other, with no obstructions in between.

Your first required objective is to create a point-to-point link between the two buildings within the local regulatory body's 800 mW EIRP maximum.

Your second required objective is to provide an industry-standard security solution capable of supporting mutual authentication.

As an optional objective, you must minimize the amount of interference from, and to, nearby WLAN networks.

You install an OFDM wireless bridge at each building, configuring one in root mode and the other in non-root mode. You set each radio for 100 mW (20 dBm) and attach 9 dBi omni-directional antennas to both. You configure the network for WPA2-Enterprise with PEAPv0/EAP-MSCHAPv2 authentication.

Which statement is true about the solution you chose to deploy?

A. Your solution meets both required objectives and the optional objective.

B. Your solution meets the first required objective and the optional objective, but not the second objective.

C. Your solution meets the second required objective and the optional objective, but not the first required objective.

D. Your solution meets neither required objective but meets the optional objective.

E. Your solution meets both required objectives, but does not meet the optional objective.

F. Your solution does not meet either required objective, or the optional objective.

Given: You are being interviewed by ABC Company for employment as a wireless site survey engineer. The interviewing manager asks you what items should be included in a manual RF site survey report.

What answer would be accurate? (Choose two)

A. Itemized list of equipment, licenses, and support contracts required for the facility

B. RF heat map illustrating coverage and signal quality for each frequency band

C. Documentation noting physical security hazards in the RF coverage area

D. Documentation noting where each access point will be placed and how it will be mounted

E. Documentation noting how each WLAN user group will authenticate to the network