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Free CWNP CWNA-106 Practice Exam with Questions & Answers

Questions 1

The 802.11 protocol specifies a fundamental channel access method that is required for all stations and is used in all IBSS and BSS networks.

What is this fundamental channel access method called?

Options:
A.

DCF

B.

PCF

C.

HCF

D.

EDCAF

E.

HCCA

F.

PCF/CA

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Questions 2

ABC Company has just purchased a 6 dBi patch antenna. After performing some tests with the 6 dBi antenna, they have concluded that more antenna gain is needed to cover their outdoor courtyard. When choosing an antenna with higher gain, what other antenna characteristic will also always change?

Options:
A.

Fresnel Zone size

B.

Maximum input power

C.

Beamwidth

D.

Impedance

E.

VSWR Ratio

Questions 3

What statement about 802.11 WLAN performance is true?

Options:
A.

Use of larger frame sizes results in greater throughput in low interference environments.

B.

BSS support for 65 KB A-MPDUs will increase the maximum data rate available to client devices.

C.

In 802.11ac, changing the security mechanism from WPA2-Personal to WPA2-Enterprise will enable the VHT MCS rates.

D.

Compared to an Independent BSS, an Infrastructure BSS can provide almost twice the throughput between wireless nodes.

E.

Use of short guard intervals improves reliability and throughput in high multipath environments

Questions 4

What causes of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries? (Choose 2)

Options:
A.

Data frames too large for the physical environment

B.

Client stations broadcasting with too much power

C.

Access points broadcasting with too little power

D.

Client stations too close in proximity to each other

E.

Obstacles between client stations causing attenuation

F.

Large 802.11 cells with physically distributed stations

Questions 5

When planning an access point deployment that utilizes Power over Ethernet (PoE) switches at the network edge, what design decision could adversely affect the operation of 802.3-2012, Clause 33 APs?

Options:
A.

All ports on the Ethernet switch will be supporting Class 3 PoE powered devices.

B.

Some APs are connected to a PoE switch and are also receiving power from an AC outlet.

C.

The Ethernet switch uplink ports are not connected to an 802.3-2012, Clause 33-compliant core or distribution Ethernet switch.

D.

A gigabit Ethernet switch port supporting an 802.11a/g AP auto-negotiates to 100 Mbps.

E.

The installation team is not informed that PoE support will reduce the recommended maximum UTP cabling length from 100m to 50m.

Questions 6

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?

Options:
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.

Questions 7

A Wi-Fi Alliance interoperability certificate indicates that a device is a/b/g/n certified. It further indicates one transmit and receive spatial stream for both the 2.4 GHz and 5.0 GHz bands. It further indicates support for both WPA and WPA2 Enterprise and Personal. Finally, it indicates support for EAP-TLS, EAP-TTLS/MSCHAPv2, PEAPv0/EAP-MSCHAPv2 and PEAPv1/EAP-GTC. Which one of the following statements is false?

Options:
A.

This client device supports protection mechanisms such as RTS/CTS and/or CTS-to-Self.

B.

This client device supports both TKIP and CCMP cipher suites.

C.

300 Mbps is the maximum supported data rate for this device.

D.

This client device supports the ERP, OFDM, and HT physical layer specifications.

E.

This client device supports X.509 certificates for EAP authentication.

Questions 8

What facts are true regarding controllers and APs in a Split MAC architecture? (Choose 2)

Options:
A.

An IP tunnel is established between the AP and controller for AP management and control functions.

B.

Using centralized data forwarding, APs never tag Ethernet frames with VLAN identifiers or 802.1p CoS.

C.

With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator.

D.

Management and data frame types must be processed locally by the AP, while control frame types must be sent to the controller.

E.

In a distributed data forwarding model, the AP handles frame encryption and decryption.

Questions 9

As XYZ Company’s wireless specialist, you have been asked to troubleshoot some unexpected frame patterns in a wireless protocol capture. Your peers explain that the network’s beacon frames are inconsistent. That is, the BSSID is the same for all beacons, but the source address varies between three different addresses.

What network configuration would cause this beacon frame behavior?

Options:
A.

A single AP supports multiple BSSs with different SSIDs

B.

A virtual cell single channel network has been implemented

C.

The beacons are from an IBSS instead of a BSS

D.

Three APs still share the same default configuration.

Questions 10

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

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

Options:
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