최신 CWNA-109 무료덤프 - CWNP Wireless Network Administrator (CWNA)

문제1

You are the network administrator for ABC Company. Your manager has recently attended a wireless security seminar. The seminar speaker taught that a wireless network could be hidden from potential intruders if you disabled the broadcasting of the SSID in Beacons and configured the access points not to respond to Probe Request frames that have a null SSID field.
Your manager suggests implementing these security practices. What response should you give to this suggestion?

A. To improve security by hiding the SSID, the AP and client stations must both be configured to remove the SSID from association request and response frames. Most WLAN products support this.

B. This security practice prevents manufacturers' client utilities from detecting the SSID. As a result, the SSID cannot be obtained by attackers, except through social engineering, guessing, or use of a WIPS.

C. Any 802.11 protocol analyzer can see the SSID in clear text in frames other than Beacons frames. This negates any security benefit of trying to hide the SSID in Beacons and Probe Response frames.

D. Any tenants in the same building using advanced penetration testing tools will be able to obtain the SSID by exploiting WPA EAPOL-Key exchanges. This poses an additional risk of exposing the WPA key.

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제2

A wireless engineer measures a high VSWR value on an antenna cable run. What does this indicate?

A. The cable length is too short.

B. There is a significant impedance mismatch causing signal reflection.

C. The antenna has excessive gain.

D. The transmitter power is set too low.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제3

You administer a small WLAN with nine access point. As a small business, you do not rum a RADIUS server and use WPA2-Personal for security. Recently, you changed the passphrase for WPA2-personal in all Aps and clients. Several users are now reporting the inability to connect to the network at time and it is constrained to one area of the building. When using scanner, you see that the AP covering that area is online?

A. The AP that covers the problem area requires a firmware update

B. The AP that covers the problem area has failed

C. The clients are improperly configured

D. The AP that covers the problem area is improperly configured

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제4

What is required when operating 802.11ax APS in the 6 GHz band using passphrase-based authentication?

A. SAE

B. HT PHY

C. CCMP

D. VHT PHY

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제5

Why is it generally recommended to design overlapping coverage cells with approximately 15-
20% overlap between adjacent access points in an enterprise WLAN?

A. To maximize co-channel interference for better security.

B. To allow client stations to roam smoothly between APs without losing connectivity.

C. To ensure only one AP is ever active at a time.

D. To reduce the number of required IP addresses.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제6

What feature was introduced in the 802.11h amendment in order to uphold regulatory requirements for 5 GHz operations.

A. Distributed Coordination Function (DCF)

B. 256-QAM

C. Transmit Power Control (TPC)

D. Radio Resource Management (RRM)

정답: C

문제7

A wireless engineer needs to calculate the total power radiated from an antenna, accounting for transmitter power, cable/connector losses, and antenna gain. What is this calculated value called?

A. Effective Isotropic Radiated Power (EIRP)

B. Fade margin

C. Free space path loss

D. Receiver sensitivity

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제8

You are attempting to explain RF shadow and how it can cause lack of coverage. What common building item frequently causes RF shadow and must be accounted for in coverage plans?

A. Cubicle partitions

B. Carpeted floors

C. Elevators

D. Wooden doors

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제9

What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?

A. Throughput speed in Mbps.

B. PING latency when testing against an Internet server.

C. FCS errors in frames transmitted to and from the AP.

D. Signal strength of AP beacons received.

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제10

The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz). What is the center frequency of channel 4?

A. 2.427

B. 2.417

C. 2.413

D. 2.422

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제11

A wireless network is deployed using access points that operate independently, with each AP individually configured and managed without a central controller. What type of architecture is this?

A. Split-MAC architecture

B. Cloud-managed architecture

C. Autonomous architecture

D. Controller-based architecture

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제12

A client STA must choose the best AP for connectivity. As part of the evaluation, it must verify compatible data rates. What can the client STA use to verify that an AP supports the same data rates that it supports?

A. Beacon frames transmitted by the AP

B. Probe request frames transmitted by other client STAs

C. Authentication frames transmitted by the other client STAs

D. Data frames sent between the AP and current clients STAs

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제13

What 802.11 amendment provides Radio Resource Management (RRM) capabilities, allowing client stations to request neighbor reports from an AP to assist with roaming decisions?

A. 802.11v

B. 802.11r

C. 802.11k

D. 802.11e

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제14

Which spread spectrum technology, used by the original 802.11 and 802.11b amendments, divides data across a wide frequency band using a chipping code to provide resistance to narrowband interference?

A. DSSS

B. OFDMA

C. OFDM

D. FHSS

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

최신 CWNA-109 무료덤프 - CWNP Wireless Network Administrator (CWNA)

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