PW0-071 Online Practice Questions and Answers

What layer of the OSI reference model is responsible for data framing for a given physical layer technology?

A. Transport

B. Network

C. Data Link

D. Session

E. Presentation

F. Application

Given: You are recommending an AP for use in a warehouse environment. Some APs will require directional antennas and others will use dipole antennas.

What feature must be supported by the APs in this installation?

A. Multiple SSIDs

B. Grounding wire connectors

C. Pole mounts

D. External antennas

E. Variable output power

Which explanations of antenna usage are the most accurate? (Choose 2)

A. A parabolic dish antenna is ideal for directing a beam down a long hallway.

B. An omni-directional antenna is well-suited to provide wireless coverage in most homes.

C. Patch antennas are mounted in the center of a lecture hall to provide circular coverage.

D. A dipole antenna is mounted to a perimeter wall in school buildings to provide coverage inside the building.

E. A grid antenna is designed to perform favorably as part of an outdoor point-to-point link under windy conditions.

Given: To manage increasing enrollment and budget constraints, a school has temporarily parked classroom trailers near the main building on its campus. Students and teachers in the trailers are using desktop computers and have an occasional need to connect to the main building's network for web browsing. The main building has an existing 802.11g Wi-Fi network.

What would be the most cost-effective and easily-deployable solution to allow the desktop computers in the temporary classrooms to access the main building's network?

A. Install PCI Wi-Fi cards in all of the desktops and wirelessly connect each computer to the main building's access points.

B. Install mesh access points in each of the trailers that connect with portal APs in the main building.

C. Connect the desktop computers in the trailers to the main building by running cables through the existing power conduits

D. Install wireless workgroup bridges in each trailer through which the wired desktops can connect to the main building's APs.

What is one difference between autonomous access points and controller-based access points?

A. Controller-based access points can be centrally managed, but autonomous access points cannot.

B. Controller-based access points support client roaming, but autonomous access points do not.

C. Controller-based access points cannot be configured on an individual basis, but autonomous access points can.

D. Controller-based access points associate to a WLAN controller, but autonomous access points do not.

Given: ABC Company has asked you to recommend a solution that will provide wireless connectivity for desktop computers at various locations in their warehouse. The locations of the desktop computers prevent the use of Cat5e cabling.

What type of client adapter would provide Wi-Fi connectivity to these desktop computers?

A. USB 2.0

B. Mini-PCIe

C. ExpressCard

D. CardBus

E. Secure Digital

Which statement best defines SNR?

A. The difference between the noise floor and a signal's strength

B. The technology used to detect objects using RF waves

C. The absolute measurement of signal strength at the receiver

D. The frequency of the RF signal compared to that of an interferer

What statement accurately describes an advantage of manual RF site surveys over predictive site surveys?

A. Manual site surveys are useful for locating and identifying sources of RF interference, while predictive site surveys are not capable of this task.

B. Manual site surveys are more efficient than predictive site surveys in large facilities because GPS mapping can be used.

C. Manual site surveys are more accurate than predictive site surveys because they take advantage of complex computer simulations.

D. Manual site surveys allow the site surveyor to create a static RF environment, whereas predictive site surveys are subject to changes in the RF environment.

Given: In ABC Company's branch office, there are three 802.11n access points serving 20 Wi-Fi clients for email, web browsing, and occasional file sharing. Some users sit at a picnic table outside the building during lunchtime and have complained that the network is slow and connectivity is intermittent during this period of time.

What is the most likely cause of the slow and intermittent connectivity?

A. The users experiencing connectivity problems are using WPA2-Personal, which has shorter range than 802.1X/EAP.

B. WLANs require visual line-of-sight, and only those clients that can see an AP through a window can connect.

C. The picnic tables are located at the edge of the effective range of Wi-Fi coverage.

D. The client laptops are using 802.11g radios that are not fully interoperable with 802.11n.

Identify the strongest passphrase-based security mechanism for 802.11 wireless networks.

A. TKIP

B. WPA-PSK

C. WPA2-Personal

D. RC4

E. WEP