CWDP-304 Online Practice Questions and Answers

When selecting a centralized WLAN architecture, what new problem may arise when you change the data forwarding model from centralized to distributed?

A. APs that were designed for a centralized forwarding model may not support all features in distributed forwarding mode.

B. The router between the APs and the controller must be made aware of the APs as forwarding client STAs.

C. All RRM controls will also need to be distributed to a master AP that acts as a channel and transmit power arbiter for other APs in the ESS.

D. Centralized control functions, such as key management and distribution, RRM, and load balancing will no longer be supported.

HR/DSSS specifies the following PHY rates:

Response:

A. 6, 9, 12, 18, 24, 36, 48, 54

B. 1, 2

C. 1, 2, 5.5, 11

D. MCS 1?5

When designing a WLAN to support voice in a large office, which design element is of the highest concern for performance?

A. Frequency Selection

B. Roaming

C. AP vendor

D. Band steering

What are the deliverables to your customer after successfully implementing a WLAN infrastructure?

A. Digital or physical assets, guides, floorplans and configuration documents

B. Project Charter

C. Facility blueprints

D. Nothing is required. The implemented WLAN was deliverable

During a validation site survey, you realize that the installers mounted some of the APs above the ceiling. They said that this was a request from the building architect due to aesthetics constraints.

During the requirements gathering, you weren't advised about any aesthetics constraints from the main stakeholder of the project. What should you do in this case?

Response:

A. Remove all external antennas and use only the internal antennas to reduce multipath.

B. Advise the stakeholder that WLAN performance requirements will not be met and a new design process will be needed to meet the requirements.

C. Leave it as it is and allow automatic channel management to correct any issues.

D. Increase the output power on all APs by 6 dB immediately.

Excessive uplink RTP frame retransmissions can result in ____________.

A. Deauthentication of the transmitter by the receiver

B. Lowering of the data transmission rate by the transmitting station

C. MOS scores in excess of 5

D. Head-of-Line blocking at the receiver

What term refers to the security practice of obfuscating actual data from unintended receivers as the data crosses the transmission medium?

Response:

A. Confidentiality

B. Authentication

C. Integrity

D. Accounting

E. Nonrepudiation

Aesthetics are very important in some environments. What common installation technique can be used to best meet this requirement in a stadium?

A. Painting to match team colors

B. Using enclosures under the seats or on hand-rails

C. Mounting on a non-fixed pole

D. Mounting on the walls

What are some common problems with short (12 or fewer characters) ASCII passphrases in WPA/WPA2-Personal networks?

Response: A. They are more susceptible to dictionary attacks than longer passphrases.

B. They lead to weak group keys in a BSS.

C. They only produce a 64-bit PMK instead of a 256-bit PMK.

D. Very few AP and client vendors support entry of an ASCII-based passphrase.

A table of VLANs in a _________ document should include what device performs ________ services.(Fill in the blanks)

Response:

A. HLD, routing

B. LLD, bridging

C. LLD, routing

D. HLD, QoS

As a device starts to shift to lower PHY rates, what factors usually influence a device decision to shift to lower PHY rates?(Choose all that apply.)

Response:

A. Signal degradation

B. Packet loss

C. Interference

D. Retransmissions

What is the most suitable antenna option to be used when designing a WLAN infrastructure with APs mounted on a ceiling with a height of more than 20 feet and having all of the client stations used from the floor?

Response:

A. Patch

B. Dish

C. Low-gain dipole

D. Grid

When performing an indoor predictive site survey to make the WLAN planning and design cycle more efficient, what is a best practice for configuration of the simulated APs in the predictive modeling software?

A. All simulated APs should be set to 20 MHz channels only.

B. Always use the default 2.2 dBi omnidirectional antenna patterns for simulated APs.

C. If dynamic RRM will be used, AP transmit power should be set to an estimated average level of the expected client devices, such as 25 mW.

D. Defining custom AP and antenna patterns will yield more accurate prediction data than the pre-configured vendor AP/antenna combinations.

What limitation exists when WMM is not enabled on an 802.11n WLAN?

A. 802.11 QoS will not be available

B. The maximum channel-width will be 20MHz

C. EDCA values will change

D. Only two ACs will be available

What advantages are provided by per-user PSKs when compared with ESS-wide PSKs?(Choose all that apply.)

Response:

A. Per-user PSKs allow easier user-based access control with WPA/WPA2-Personal security.

B. Per-user PSKs are easier to manage if a PSK is compromised or an employee leaves a company.

C. Per-user PSKs are standardized and certified by the Wi-Fi Alliance.

D. Per-user PSKs are more secure than ESS-wide PSKs because they support mutual authentication.