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PW0-105 Real Exam Questions

Certified Wireless Network Administrator (CWNA)

125 questions available · Page 1 of 13

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Question 1 Single choice

What is the approximate beamwidth of the antenna displayed in the exhibit?

  1. A

    15 degrees

  2. B

    30 degrees

  3. C

    50 degrees

  4. D

    70 degrees

  5. E

    120 degrees

Show answer and explanation

Correct answer: B

Question 2 Multiple choice

Which features are incorporated in the 802.11-2007 specification and are recommend for robust WLAN client security? (Choose 2)

  1. A

    SSID hiding

  2. B

    CAPWAP with DTLS

  3. C

    802.1X/EAP

  4. D

    CCMP cipher suite

  5. E

    IPSec VPN

  6. F

    MAC address whitelists

Show answer and explanation

Correct answers: C, D

Question 3 Single choice

What type of RF transmitter is shown in both of the spectrum analysis exhibits?

  1. A

    Military radar

  2. B

    Bluetooth mouse

  3. C

    Microwave oven

  4. D

    Wireless video camera

  5. E

    WIPS sensor

Show answer and explanation

Correct answer: D

Question 4 Single choice

What statement about 802.3af Power over Ethernet (802.3, Clause 33) is true?

  1. A

    If a dual-radio access point requires 12W to operate, a PoE power source supplies 15.4W to the powered interface.

  2. B

    802.3af-compliant endpoint and midspan PSE devices support 10/100 as well as Gigabit (1000Base-
    T) data rates.

  3. C

    Class 1 powered devices may use a maximum of 29W of power.

  4. D

    802.3af-compliant Ethernet switches must be able to simultaneously support class 3 powered devices on every powered interface.

  5. E

    There are two classes of 802.3af PSEs: Type A supports up to 7W and Type B supports up to 15W of supplied power.

Show answer and explanation

Correct answer: A

Question 5 Multiple choice

What WLAN system feature is required to produce a scenario with the following configuration on a single access point? (Choose 2)

1. SSID = Guest / BSSID = AA:AA:AA:AA:AA:AA /
VLAN = 22 / Subnet = 192.168.22.0 / RF Channel = 6

2. SSID = Corporate / BSSID = BB:BB:BB:BB:BB:BB /
VLAN = 33 / Subnet = 192.168.33.0 / RF Channel = 6 / User Type A

3. SSID = Corporate / BSSID = BB:BB:BB:BB:BB:BB /
VLAN = 44 / Subnet = 192.168.44.0 / RF Channel = 6 / User Type B

  1. A

    Multiple WLAN Profiles

  2. B

    Call Admission Control

  3. C

    Virtual Cell with SCA

  4. D

    Access Categories

  5. E

    User-based authentication

  6. F

    Dual-radio AP hardware

  7. G

    Integrated DHCP server

Show answer and explanation

Correct answers: A, E

Question 6 Multiple choice

Which IEEE 802.11 physical layer (PHY) specifications include support for and compatibility of both OFDM and HR/DSSS? (Choose 2)

  1. A

    HR/DSSS (802.11b)

  2. B

    OFDM (802.11a)

  3. C

    ERP (802.11g)

  4. D

    HT (802.11n)

  5. E

    CCK (802.11b)

  6. F

    PBCC (802.11g)

Show answer and explanation

Correct answers: C, D

Question 7 Multiple choice

What is a common feature of an 802.11 WLAN client utility? (Choose two)

  1. A

    Real-time retry monitor

  2. B

    AP Signal strength meter

  3. C

    Spectrum analyzer utility

  4. D

    VLAN configuration

  5. E

    Link statistics display

Show answer and explanation

Correct answers: B, E

Question 8 Single choice

What word describes the bending of an RF signal as it passes from one medium to another medium of a different density?

  1. A

    Diffraction

  2. B

    Reflection

  3. C

    Refraction

  4. D

    Diffusion

  5. E

    Scattering

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Correct answer: C

Question 9 Single choice

What distinguishes an independent basic service set (IBSS) from an infrastructure basic service set (BSS)?

  1. A

    An IBSS does not have a distribution system (DS), but a BSS does.

  2. B

    An IBSS does not require beacon frames, but a BSS does.

  3. C

    An IBSS does not support 802.11 authentication or association, but a BSS does.

  4. D

    An IBSS can only operate on a single channel, but a BSS can operate on multiple channels.

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Correct answer: A

Question 10 Single choice

Given: ABC Hospital is planning a Wi-Fi infrastructure upgrade where the 802.11b/g APs would be replaced with new dual-radio HT (802.11n) APs. ABC wants to minimize the time and cost associated with performing a new site survey, so they will be mounting all of the new APs in the same locations and with the same cable drops as the existing APs.

What is one performance drawback with this deployment method?

  1. A

    Multipath will increase, causing excessive layer-2 retransmissions. The retransmissions will cause latency for VoWiFi handsets.

  2. B

    Increased receiver sensitivity on the HT APs will cause them to continually change channels to avoid co-channel interference.

  3. C

    If the existing UTP cabling is not Category 6 or better, the total Ethernet backhaul for each AP will be limited to 100 Mbps.

  4. D

    In locations with line-of-sight to client devices and little multipath, the benefits of MIMO may be less significant than in other areas.

Show answer and explanation

Correct answer: D