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CWDP-304 Practice Exam Questions with Answers Certified Wireless Design Professional Certification

Question # 6

In the enterprise, when is WPA/WPA2-Personal generally a recommended solution?(Choose all that apply.)

Response:

A.

When client devices do not support 802.1X/EAP

B.

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

C.

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

D.

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

Full Access
Question # 7

What type of protection should be provided to outdoor antenna installations?

Response:

A.

Static electricity

B.

Brownouts

C.

Lightning surge suppression

D.

A/C spikes

Full Access
Question # 8

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?

A.

Patch

B.

Dish

C.

Grid

D.

Low-gain dipole

Full Access
Question # 9

In 802.11, clients are required to be calibrated for RSSI and SNR reporting to:

A.

Within +/?5 dB

B.

Within +/?3 dB

C.

Within +/?1 dB

D.

Within +/?0.5 dB

E.

Within +/?0.25 dB

F.

No specific value

Full Access
Question # 10

You have performed a validation site survey after deploying a WLAN infrastructure that is an All-Wireless-Office. One specific application of your

customer is experiencing delay when using the application after moving from wired connectivity. After your validation, you realized that all APs are

using 80 MHz channel- widths instead of 20 MHz on the 5 GHz band, as it was designed. What can be done to resolve the delay on this

application?

A.

APs should be using 160 MHz channel-widths to get more throughput

B.

Reconfigure to use 20 MHz channel-widths, so reuse of the frequency is more effective

C.

Power-off half of the APs to reduce CCI and keep 80 MHz channel-widths

D.

Add more APs using 80 MHz channel-widths

Full Access
Question # 11

What should always be done before connecting an AP to the production network?

Response:

A.

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

B.

Disabling SSID broadcasting.

C.

Reduction of output power.

D.

Increase in output power.

Full Access
Question # 12

What might limit the ability to locate 802.11 clients using a WLAN infrastructure without an 802.11 tag?(Choose all that apply.)

A.

Lack of 802.11k support

B.

When its radio is disabled

C.

When it is off

D.

RF channel selection

Full Access
Question # 13

What kind of antenna results in a nearly circular pattern on the azimuth chart but a very flat donut shape on the elevation chart?

A.

High gain omni-directional

B.

20 degree vertical yagi

C.

120 degree horizontal sector

D.

60 degree horizontal patch

Full Access
Question # 14

When doing some frame capturing over the air during a voice call, you realized that frames on the downlink (from the AP to the client) direction are

not being transmitted with the correct UP value for voice frames, but on the uplink (from the client to the AP) direction are being transmitted

correctly. What's the cause of this issue?

A.

Bad client driver

B.

AP is not receiving enough PoE, thus not using QoS features

C.

Somewhere on the wired network QoS markings aren't being trusted

D.

Faulty antenna on the AP

Full Access
Question # 15

Prior to meeting with the customer for the first time, you should do which of the following?

Response:

A.

Decide which vendor they will benefit most from.

B.

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.

C.

Find out what vendor their competitors use.

D.

Plan an initial design to present to them.

Full Access
Question # 16

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

Full Access
Question # 17

Who should be in the final meeting from the customer-side after successfully implementing a WLAN infrastructure?

A.

CEO or CFO

B.

End-users

C.

The customer's customers

D.

Remote workers

Full Access
Question # 18

Which definition correctly describes the "local MAC" variation of the centralized WLAN architecture?

A.

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.

B.

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.

C.

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.

D.

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,

Full Access
Question # 19

You have been tasked with performing safety and operations training for outdoor bridge link installation. The antennas are to be installed on a 70-foot tower on one end and the roof top of an office building on the other end.

What might be required for the tower installation?

Response:

A.

Hiring a certified tower installer.

B.

Special antennas that avoid reflections on the tower poles.

C.

APs that are designed to operate above 70 feet.

D.

Special RF cables that will not create loss incurred by the metal tower construction.

Full Access
Question # 20

While performing a validation site survey, you realize that overlapping channels are being used on the 2.4 GHz bad due to the automatic channel

assignment algorithm of the WLAN infrastructure. What should you do to prevent this?

A.

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

B.

Purchase and deploy new APs from a different vendor

C.

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

D.

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

Full Access
Question # 21

What differences exist between VLANs in wireless and wired domains?

Response:

A.

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

B.

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.

C.

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.

D.

Wireless VLANs are ineffective for utilizing a single set of infrastructure equipment to provide different services to different client groups. Wired VLANs are effective for this purpose.

Full Access
Question # 22

In addition to a copy of your design, which tools should you use to ensure the installation team deploys APs where you have them designed to be

located?

A.

GPS and a map

B.

RF spectrum analyzer and packet capturing software

C.

Ladder and a pen

D.

Camera and marking tools

Full Access
Question # 23

Which document provided to your customer should include all devices and parts that are going to be used during the deployment of their WLAN

infrastructure?

A.

SoW

B.

BoM

C.

Design report

D.

Project plan

Full Access
Question # 24

You are site surveying a network for VoWiFi. You have positioned an AP for a manual survey and are moving away from the AP with a phone in

Survey Mode in your hand and you are reading the RSSI value of the signal received from the AP. You have previously determined that the noise

floor was approximately -94 dBm on this floor of the building. The phones documentation does not specify a recommended RSSI or SNR value for

best performance.

Based on the information provided and the type of device (VoWiFi phone) you are deploying, what minimum RSSI should you plan for in all areas

you are monitoring and where VoWiFi service is desired?

A.

- 75 dBm

B.

- 72 dBm

C.

- 67 dBm

D.

- 62 dBm

Full Access
Question # 25

What metric implements the simplest algorithm and lowest accuracy in networks requiring locations?

Response:

A.

Angle of Arrival (AoA)

B.

Time of Arrival (ToA)

C.

Time Difference of Arrival (TDoA)

D.

Received Signal Strength Indicator (RSSI)

Full Access
Question # 26

For what purpose is SSID hiding generally useful?(Choose all that apply.)

Response:

A.

Preventing guests from attempting to join the secured corporate network

B.

Obscuring the network name from potential attackers

C.

Minimizing help desk calls from users and guests attempting to join the wrong network

D.

Preventing legitimate corporate users from finding the guest network

Full Access
Question # 27

When using a predictive design tool, you have selected APs with an antenna gain 3 dBi and set the transmit power of the predicted APs to 25 mW. What should be EIRP of the APs in the design?

Response:

A.

17 dBm

B.

125 mW

C.

11 dBm

D.

6.25 mW

Full Access
Question # 28

A customer is acquiring a new VoWLAN system to replace their existing wired phone system. When reading about his system's requirements, you

learned that is requires 25 db of SNR to work as expected. After surveying the environment, you discovered that the noise floor is -88 dBm. What

should be the minimum RSSI value to meet the system's requirements?

A.

-70 dBm

B.

-67 dBm

C.

-65 dBm

D.

-63 dBm

Full Access
Question # 29

When a WLAN controller sends an 802.11 frame to a lightweight AP for transmission on the wireless medium, how does it mark the frame for

802.11 QoS priority?

A.

The WLAN controller will place the user priority (UP) value in the QoS Control field of the 802.11 frame header before passing it to the

lightweight AP.

B.

The WLAN controller does not mark 802.11 frames with priority values only the APs can do this.

C.

The WLAN controller does not mark the 802.11 frames with priority values only the Layer 3 switches can do this.

D.

The WLAN controller does not mark the 802.11 frames with priority values only the Layer 3 routers can do this.

Full Access
Question # 30

Why should band steering algorithms allow stations to connect to the 2.4 GHz band after some number of ignored Probe Requests?

A.

Because the FCC requires it.

B.

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

C.

Because the 802.11 standard requires it.

D.

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

Full Access
Question # 31

After designing and deploying a WLAN infrastructure, you realized the CCI is causing poor performance in the 2.4 GHz band. Primarily, you've

designed the

WLAN for 5 GHz and 2.4 GHz as a best effort. You found out that the implementers didn't follow your guidelines when configuring the WLAN

infrastructure. What can you do to minimize as much as possible the CCI impact in the 2.4 GHz band?

A.

Add more APs to the infrastructure

B.

Increase the transmit power on all APs

C.

Turn-off 2.4 GHz radios on some APs

D.

Use all channels available in the 2.4 GHz band

Full Access
Question # 32

You are configuring an 802.11ac AP using manual channel planning. The design specification calls for the current AP to be placed on channel 56 in 5 GHz and to disable the 2.4 GHz radio.

For what could the 2.4 GHz radio be used if not standard AP operations?

Response:

A.

PCI DSS encoding

B.

Security monitoring

C.

Bluetooth access

D.

Controller-based channel assignment

Full Access
Question # 33

A wireless network with fewer APs at higher power levels to cover a large area is said to be which of the following?

Response:

A.

Capacity based

B.

Coverage based

C.

Destined for failure

D.

Ideal for roaming

Full Access
Question # 34

During a post-validation assessment, you have configured a client for 802.1X/EAP but it is not passing authentication. Which areas should you check in the WLAN configuration?

Response:

A.

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

B.

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

C.

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

D.

Whether the client has a fully valid certificate

Full Access
Question # 35

When deploying APs outdoors, what additional component needs to be used that is not needed indoors?

A.

Antennas

B.

NEMA enclosures

C.

Ethernet cables

D.

PoE

Full Access
Question # 36

Your customer requires fast secure roaming. Which two types of roaming are specified in 802.11-2016 FT roaming that will help meet this goal?

A.

Over-the-Air and Over-the-DS

B.

Over-the-Air and Over-the-Wire

C.

FT and OKC

D.

FT and TKIP

Full Access
Question # 37

You are selecting external antennas for use in a bridge link deployment. What chart should you request from the antenna vendors to make an

accurate selection?

A.

mW to dBm conversion chart

B.

dBm to dB conversion chart

C.

Elevation chart

D.

Antenna coating chart

Full Access
Question # 38

You deployed an AP and installed its antenna, and you now need to set the AP transmit power. Given a desired EIRP of 21 dBm, and an antenna

gain of 5.85 dBd connected through 25 feet of cable with a loss specification of 4 dB/100 feet.

Assuming that there is no significant loss from the connectors, what should be the transmit power level for this AP?

A.

10 mW

B.

14 mW

C.

20 mW

D.

25 mW

Full Access
Question # 39

In this question, you will compare the mobility processes of a network that supports WPA2-Personal and WPA2-Enterprise. Assume the use of a

15-character

ASCII passphrase for WPA2-Personal and EAP-TTLS/MSCHAPv2 with WPA2-Enterprise. Also, assume that proprietary roaming protocols are not

supported.

When a device transitions from one BSS to another within the same ESS, what step must be performed in the WPA2-Enterprise transition that are

not performed in the WPA2-Personal transition?

A.

Open System Authentication

B.

802.11 Reassociation

C.

802.1X authentication

D.

4-Way Handshake

Full Access
Question # 40

During your first pre-deployment meeting with the deployment team, you hand out the full design documentation to all of them. What's your

primary goal during this meeting?

A.

To explain design decisions and ensure understanding of design documents.

B.

To discuss AP functionality.

C.

To explain how Wi-Fi works.

D.

To justify the budget.

Full Access
Question # 41

SSID hiding is not generally recommended because some frames require inclusion of the SSID. In what frames is the SSID always included?

Response:

A.

Beacon

B.

Association request

C.

Probe response

D.

Probe request

E.

Authentication response

Full Access
Question # 42

You're preparing to perform a site survey for a company that processes meat. Some areas are restricted due to high-security. What do you have to

do in order to proceed with the site survey?

A.

Gain appropriate access and clearance to perform the site survey.

B.

Gain meat processing access certification from the FDA.

C.

Ensure that you and your team are using food industry approved USB adapters for thesurvey.

D.

Just begin the survey, they will understand

Full Access
Question # 43

During lunch time in the break room of a company, Wi-Fi connectivity on the 2.4 GHz band is intermittent. Every other time of the day, it works fine.

What's the likely cause of this issue?

A.

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

B.

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

C.

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

D.

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

Full Access
Question # 44

ABC Company has a WLAN controller with 10 controller-based APs; the Voice SSID is configured for centralized data forwarding. Each AP is

connected to an access port on a layer-2 Ethernet switch. Each layer-2 switch is uplinked to a single layer-3 core Ethernet switch. The WLAN

controller is connected directly to the layer-3 core Ethernet switch. Layer-3 tunnels are created between all controller-based APs and the WLAN

controller. A voice server is connected to the layer-3

Ethernet switch.

When a voice-enabled QoS STA sends an IP data packet to a voice server in this scenario, the DSCP value carried in the STA's IP data packet gets

mapped to what and by which device?

A.

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

B.

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

C.

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

D.

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

Full Access
Question # 45

You have initiated a site survey to be performed and the team has been onsite and is halfway through gathering the necessary data.

The project sponsor just asked you to make sure the WLAN supports radio frequency identification (RFID) location tracking. How would you possibly characterize this situation?

Response:

A.

Scope creep has occurred.

B.

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

C.

The 802.11g standard incorporates location tracking.

D.

Any WLAN will support location tracking.

E.

The power requirements on the UPS need to be evaluated.

Full Access
Question # 46

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.

Full Access
Question # 47

In a manufacturing facility with highly reflective materials, you are planning an upgrade to your existing 802.11b WLAN implementation. You have

chosen a dual- band 802.11n infrastructure product for this purpose. Your client applications include:

?Handheld scanners for inventory management

?Toughbooks (laptops) mounted on forklifts for inventory and workflow management

?VoWiFi phones used by select employees throughout the facility

You are evaluating all of the 802.11n enhancements and determining which features to enable for your environment and applications.

In this scenario, what 802.11n enhancement typically should NOT be enabled on the 2.4 GHz radio of the new APs?

A.

Multiple streams

B.

Short guard intervals

C.

Block Acknowledgments

D.

Frame aggregation

Full Access
Question # 48

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

Response:

A.

The maximum channel-width will be 20MHz

B.

Only two ACs will be available

C.

EDCA values will change

D.

802.11 QoS will not be available

Full Access
Question # 49

Your customer is using PSK as their only authentication. They have an industry requirement to move to a stronger solution. Your recommendation

is to move to a certificate-based type of authentication where both the client and server require certificates. Which EAP type would be the best fit?

A.

EAP-FAST

B.

EAP-TTLS

C.

EAP-TLS

D.

PEAP

Full Access
Question # 50

Before performing a pre-deployment passive RF survey of a new deployment using survey mapping software, which of the following must be performed?

Response:

A.

Determining AP transmit power

B.

Scaling the map

C.

Selecting antennas

D.

Checking client DTPC settings

Full Access
Question # 51

When designing for a PTP outdoor link, what important consideration should be made about local vegetation?(Choose all that apply.)

Response:

A.

Leaves

B.

Tree height growth

C.

Water density

D.

Reflection factor

Full Access
Question # 52

What service must be implemented on your customers' network to authenticate users against an LDAP database prior to access to the WLAN

infrastructure being granted?

A.

NTP

B.

RADIUS

C.

SFTP

D.

TLS

Full Access
Question # 53

Given:

In your regulatory domain, a Tx Power Level of "1" is equivalent to 17 dBm.

For every integer increment (e.g. from 1 to 2) to the Tx Power Level, the APs transmit power is halved.

In units of mW, what is the actual transmit power for an AP configured at a Tx Power Level of "4"?

A.

6.25 mW

B.

50 mW

C.

12.5 mW

D.

8 mW

Full Access
Question # 54

In your company’s WLAN, you expect to have a mixed client PHY environment and plan to use protection mechanisms. The protection mechanism used by your client devices is configurable.

What is the best protection mechanism for backward compatibility of 802.11n devices with 802.11b devices?

Response:

A.

WMM Protection

B.

SMPS

C.

CTS-to-Self

D.

Dual-CTS

E.

RTS/CTS

Full Access
Question # 55

A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum. What should you

do to meet this requirement?

A.

Lock the AP inside of a metal box

B.

Place the APs in between walls and I-beams

C.

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

D.

Use a plastic cover that could blend in with the environment

Full Access
Question # 56

What is a valid 40 MHz channel configuration in the 2.4 GHz ISM band where channels 1-11 are permitted?

A.

4 (primary), +1 (secondary)

B.

2 (primary), -1 (secondary)

C.

8 (primary), +1 (secondary)

D.

1 (primary), 6 (secondary)

Full Access
Question # 57

For what purposes are VPNs typically used in modern WLANs?(Choose all that apply.)

Response:

A.

Remote AP tunneling to a corporate WLAN controller or VPN concentrator

B.

Client device connectivity to corporate resources from unsecured public networks

C.

Initial 802.11 authentication with the AP and subsequent data encryption

D.

Tunneling APs and WLAN controllers to cloud-based management platforms

E.

Tunneling APs and WLAN controllers to RADIUS and token servers

F.

Bridging client connectivity in ad hoc networks

Full Access
Question # 58

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.

Full Access
Question # 59

While performing a validation site survey, you realize that overlapping channels are being used on the 2.4 GHz bad due to the automatic channel assignment algorithm of the WLAN infrastructure.

What should you do to prevent this?

A.

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

B.

Purchase and deploy new APs from a different vendor

C.

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

D.

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

Full Access
Question # 60

What are methods of providing RF high availability?

Response:

A.

Power APs to maximum power.

B.

Use the HSRP/VRRP protocol.

C.

Deploy using 100 percent overlap.

D.

Deploy 802.3af.

E.

Use dual spectrums.

Full Access
Question # 61

Which operational plane would be responsible for performing automated RF management?

Response:

A.

Integration

B.

Data

C.

Distribution

D.

Control

E.

Management

Full Access
Question # 62

Which type of authentication and encryption method is mandatory for Voice Enterprise certified devices as specified by the Wi-Fi Alliance?

A.

WPA2/AES Personal

B.

WPA2/TKIP Enterprise

C.

WPA2/AES Enterprise

D.

WPA/TKIP Personal

Full Access
Question # 63

When live video streaming solutions that transmit simultaneously to more than one recipient are used, what special capability should be

considered and configured in all affected WLAN implementations?

A.

IPSec

B.

IPv6

C.

Multicasting

D.

Secure TCP

Full Access
Question # 64

The installation crew for your WLAN project wants to install a few APs to locations nearby the ones specified in the RF design document. What next step should occur?

Response:

A.

Confirm the mounting hardware.

B.

Choose a different AP model.

C.

Update the documentation.

D.

Consult the RF designer.

Full Access
Question # 65

You are validating association capabilities from clients to an 802.1X/EAP secure SSID. The RADIUS server's IP address is 10.100.50.25 and the

default RADIUS authentication port is used. When testing them, none of the clients are able to associate to the SSID. Troubleshooting the WLAN

infrastructure, you found out that the server is up and the RADIUS service is up as well, but the authenticator is not able to communicate properly

with the server. What's your next troubleshooting step?

A.

Verify that the shared secret between the authenticator and the RADIUS server is correct

B.

Reboot the clients

C.

Reboot the server

D.

Restart the RADIUS service

Full Access
Question # 66

Given: A WLAN controller is connected to ABC Company's core layer 3 Ethernet switch with an IEEE 802.1Q trunk connection. The WLAN

controller's native

VLAN is VLAN 6 and its IP address is 10.0.14.2 /24. Lightweight APs supporting centralized forwarding are connected to the network on VLANs 7,

8, and 9, and they each build a Layer 3 tunnel back to the WLAN controller's IP address.

The dynamically assigned IP addresses received by each AP from a DHCP server will be ________________.

A.

Associated with the VLAN on which they are connected.

B.

Associated with the native VLAN of the WLAN controller.

C.

Associated with VLAN 1, the default VLAN for new APs

D.

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

Full Access
Question # 67

What part of the 802.11n preamble is used by the receiver to estimate the spatially multiplexed signal channel? What mode is this used in?

Response:

A.

HT-STF in Greenfield mode only

B.

HT-LTF in Mixed and Greenfield modes

C.

HT-LTF in Greenfield mode only

D.

HT-STF in Mixed and Greenfield modes

Full Access
Question # 68

In a large enterprise (5000+ wireless users), by what would NOT be a recommended method by which IP addresses and VLANs are assigned to

different clients associated to the same AP?

A.

Each SSID is mapped to a static VLAN assignment

B.

Upstream AAA servers dynamically assign VLANs to each user or group profile

C.

Radio signal metrics (RSSI, SNR, etc.) of WLAN clients are triangulated for location-based VLAN assignment during association

D.

Multiple VLAN pools are designated for an SSID and user IP addresses are selected in a round-robin fashion from the associated pools

Full Access
Question # 69

A high power radio system transmits at 40,000 Watts. What is this power in dBm? Solve this without a calculator.

Response:

A.

46 dBm

B.

76 dBm

C.

56 dBm

D.

66 dBm

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