CWDP-304 Sample Questions Answers

Use the known size of a small object, such as a ceiling tile, and use a single instance of this object (e.g. a single ceiling tile) to scale the

floor plan.

Measure the width of an actual office doorway with a tape measure and use this value to calibrate against a doorway graphic.

Use the longest available measurement (like a straight exterior wall) to calibrate the graphic's scale.

Calibrate the ceiling height of the floor plan first, then the survey software should be able to auto-calibrate the X and Y planes of the

graphic.

Maximize airtime usage by disabling lower data rates.

Add additional APs and use directional antennas.

Turn up power on the access points.

Lower power on the access points and, after careful planning, add more AP

Voice

Email

Skype chat

Video-on-demand

EAP-Fast

PEAP

EAPOL

EAP_TLS

Passive

Predictive

Active

Spectrum analysis walkthrough

Larger than 15 dB and yes

Larger than 15 dB and maybe

Larger than 17.5 dB and yes

Larger than 17.5 dB and no

Associated with the VLAN on which they are connected.

Associated with the native VLAN of the WLAN controller.

Associated with VLAN 1, the default VLAN for new APs

Associated with a non-routable VLAN until the MAC address of the AP is removed from the controller's MAC filter

Confidentiality

Authentication

Integrity

Accounting

Nonrepudiation

Education

Warehouses

Healthcare

Office environments

Retail

PCI DSS encoding

Security monitoring

Bluetooth access

Controller-based channel assignment

Whether the RADIUS server is online and configured for the matching port on the APs and WLAN controllers

Whether the RADIUS shared secret is properly configured on the supplicant and authentication server

Whether the authenticator is configured to support the EAP type(s) your client is configured for

Whether the client has a fully valid certificate

Redraw the portions of the map that have changed.

Do not survey that area.

Request a new version.

Request the survey team to do their best to walk where necessary and use the references on the map.

Nondisclosure agreement

Hold harmless

Intellectual property protection

Indemnity clause

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

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

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.

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

1 priority level, but 2 queues (one for uplink traffic, one for downlink traffic)

1 priority level per client and AP pair, so the total number depends on the expected number of clients

1 priority level for voice RTP, 1 priority level for voice control and RTCP

1 priority level for VoWLAN client traffic, 1 priority level for wired VoIP client traffic

Patch

Dish

Grid

Low-gain dipole

54 Mbps

65 Mbps

108 Mbps

144 Mbps

Channel reuse plans

Mobility management

Transmit power

Load balancing

Secure FTP is in use

VoIP is used on the network

HTTPS is in use

Multicasting is used on the network

Baseline configuration that prevents the introduction of security issues to the network on initial connection.

Disabling SSID broadcasting.

Reduction of output power.

Increase in output power.

Employees are using their cell data instead of using the Wi-Fi

The AP in the cafeteria keeps rebooting due to lack of PoE budget on the switch

Toasters and ovens are heating up the air, raising the noise floor with the Wi-Fi on the 2.4 Ghz band

Microwaves in the cafeteria are interfering with the Wi-Fi on the 2.4 GHz band

2

3

4

6

Client devices and configurations

Audit by a third party

Detailed test methodology

Detailed configurations of each vendor’s equipment

802.11n

Rate limiting

802.1X security

Traffic tunneling or anchoring

SSID segmentation

All MAC functions are performed by the AP. A minimal subset of network control is offloaded to the WLAN controller along with

management and monitoring functions.

PHY functions are performed directly by the AP. MAC functions are divided almost equally between the WLAN controller and the AP,

according to the time sensitivity of the feature or service.

The AP provides the RF termination point for the WLAN, but performs very few of the WLAN functions or services. The WLAN controller

performs all MAC functions and the AP is very simple and lightweight.

All RF-, data-, and control-related WLAN functions are performed by the AP. APs coordinate network services with one another and are

managed by a WNMS,

−174 dBm

−139 dBm

−144 dBm

−204 dBm

Painting to match team colors

Using enclosures under the seats or on hand-rails

Mounting on a non-fixed pole

Mounting on the walls

Patch

Dish

Low-gain dipole

Grid

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

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

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

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.

His tablet doesn't support the 5 GHz band

His tablet only supports a 40 MHz channel-width

His tablet does not support one or more of the 5 GHz channels

His tablet doesn't support MU-MIMO

All WMM-PS certified client devices will be prevented from utilizing WMM-PS features until all stations in use on the wireless medium are

WMM-PS certified.

The WLAN infrastructure will set the dozing times of the WMM-PS certified client devices based upon their WMM access category, while the

non-WMM-PS client devices will continue to use PS-Poll frames.

Performance and battery life will be inconsistent between WMM-PS and non-WMM-PS client devices when used with applications that

support WMM-PS.

WMM-PS enabled APs will allow both WMM-PS and non-WMM-PS stations to use the trigger-and-delivery mechanism, but WMM-PS stationswil

Decide which vendor they will benefit most from.

Research the customer as much as possible. Try to understand what their business is, who their customers are, and any other information you can find regarding product lines and recent press announcements.

Find out what vendor their competitors use.

Plan an initial design to present to them.

Yagi

Omni

Patch

Panel

Power APs to maximum power.

Use the HSRP/VRRP protocol.

Deploy using 100 percent overlap.

Deploy 802.3af.

Use dual spectrums.

Lack of 802.11k support

When its radio is disabled

When its radio is disabled

When it is off

The DSCP value is mapped to an IEEE 802.1Q priority tag value by the WLAN controller.

The DSCP value is mapped to the DSCP value in the encapsulating IP header by the layer-3 switch.

The DSCP value is mapped to an IEEE 802.1p (802.1D-2004) UP value by the access point.

The DSCP value is mapped to an IEEE 802.1Q VLAN tag by the access point.

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

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

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

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

HLD, routing

LLD, bridging

LLD, routing

HLD, QoS

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

requirements.

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

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

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

5 dBm

2 dBm

2 dB

5 dB

DHCP lease exhaustion

Changes in receive gain

Inventory changes

Rogue APs from neighbors

2, 3, 2

1, 2, 3, 5

1, 2, 3, 4, 6

2, 3, 5

PHY standard used by the AP

Key caching protocols

Cipher suite

PHY standard used by client

CEO or CFO

End-users

The customer's customers

Remote workers

All APs share a virtual IP address. A controller will tell the closest AP to the client to communicate with it, since it has a greater RSSI from

the client.

All APs share a virtual Multicast Address. A controller will tell the closest AP to the client to communicate with it, since it has a greater

RSSI from the client.

All APs share a virtual BSSID. A controller will tell the closest AP to the client to communicate with it, since it has a greater RSSI from the

client.

The client selects the AP based on a known set of MAC to BSSID mappings stored in the clients authorized SSID listing.

By disabling support for 1 and 2 Mbps while allowing 5.5 and 11 Mbps, the network will force 802.11b clients to use these higher data

rates.

Protection mechanisms will always be in use on this network to support 5.5 and 11 Mbps as basic rates.

HR/DSSS (802.11b) stations will not be able to associate to the service set.

This configuration violates the IEEE specification that defines 6, 12, and 24 Mbps as mandatory data rates for 802.11g/n.

AF31

CS3

VO

EF

Operations

Executives

Designers

Engineering

Post-installation survey

Requirements analysis

Gathering facility documentation

Design the infrastructure services

Use a plastic cover that could blend in with the environment

Lock the AP inside of a metal box

Place the APs in between walls and I-beams

Use an 802.11b AP, so it looks old enough to be in a museum

Reconfigure the automatic channel assignment settings to use only channels 1, 6, and 11

Purchase and deploy new APs from a different vendor

Reconfigure the network to use static channel plans because automatic channel assignment algorithms are all broken

Leave it as it is; sometimes using all 11 channels in 2.4 GHz gives the optimum performance result

Minimizes configuration requirements for segmentation and filtering of guest traffic across internal LAN

Enhances performance of web proxy servers in the DMZ for guest Internet traffic

Allows a single SSID with different authentication/encryption models to be used for all WLAN services for corporate users and guests

The border firewall configuration will not require any additional rules to pass guest traffic to the DMZ controller

WPA2/AES Personal

WPA2/TKIP Enterprise

WPA2/AES Enterprise

WPA/TKIP Personal

Because the FCC requires it.

Because some clients are persistent clients that will not move on to the 5 GHz band.

Because the 802.11 standard requires it.

Because the AP will experience a buffer overflow if they do not eventually respond with a Probe Response.

Independent autonomous

Centralized

Cooperative autonomous

Controller

Distributed

When client devices do not support 802.1X/EAP

When mobile device applications require high-latency roaming times between APs

When client devices are provisioned in bulk and would otherwise share 802.1X credentials

When the network security policy demands that each user have unique access credentials

Remote AP tunneling to a corporate WLAN controller or VPN concentrator

Client device connectivity to corporate resources from unsecured public networks

Initial 802.11 authentication with the AP and subsequent data encryption

Tunneling APs and WLAN controllers to cloud-based management platforms

Tunneling APs and WLAN controllers to RADIUS and token servers

Bridging client connectivity in ad hoc networks

Clients

RADIUS

Switches

Active Directory

Routers

Leaves

Tree height growth

Water density

Reflection factor

All APs share a virtual Multicast Address. A controller will tell the closest AP to the client to communicate with it, since it has a greater RSSI from the client.

All APs share a virtual BSSID. A controller will tell the closest AP to the client to communicate with it, since it has a greater RSSI from the client.

All APs share a virtual IP address. A controller will tell the closest AP to the client to communicate with it, since it has a greater RSSI from the client.

The client selects the AP based on a known set of MAC to BSSID mappings stored in the clients authorized SSID listing.

NTP

RADIUS

SFTP

TLS

65 dB loss

16 dB gain

56 dB loss

37 dB loss

It provides clients with a temporary IP address on a restricted VLAN until 802.1X authentication is completed. Then the client receives its

long-term IP address.

It provides IP address bindings for specific network nodes that require long-term IP address assignments. WLAN controllers are configured

to use Option 43 to receive long-term IP address leases that are centrally managed with DHCP.

It supports vendor-specific IP address attributes for node discovery purposes. APs use Option 43 with vendor class identifiers to obtain the

IP address of a centralized WLAN controller.

It integrates a DHCP server with AAA servers and user databases to dynamically assign IP addresses to client devices. During 802.1X, the

AAA server uses

Wireless VLANs are not effective for segmenting the available services and network permissions available to clients. Wired VLANs are effective for this purpose.

Wireless VLANs are never carried in 802.11 frames that cross the wireless medium. VLAN identifiers are always carried in Ethernet frames to indicate the proper VLAN.

Wireless VLANs do not always segment traffic into separate broadcast domains on the wireless medium. Wired VLANs do segment broadcast domains on the wired network.

Wireless VLANs are not an effective way to utilize a single set of infrastructure equipment to provide different services to different client groups. Wired VLANs are effective for this purpose.

Scope creep has occurred.

The 802.3af RTLS standard should be incorporated into the AP configuration.

The 802.11g standard incorporates location tracking.

Any WLAN will support location tracking.

The power requirements on the UPS need to be evaluated.

46 dBm

76 dBm

56 dBm

66 dBm