A. Single telephone number B. Single device

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21 Νοε 2013 (πριν από 3 χρόνια και 7 μήνες)

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CWNA 11 Questions



1. Which of the following are objectives of fixed mobile convergence? (Choose all that apply.)

A. Single telephone number

B. Single device

C. Always use the best
-
performing network

D. Always use the lowest
-
cost network

2. Which of the
following is another form of a public hotspot network? (Choose all that apply.)

A. Law
-
enforcement network

B. First
-
responder network

C. Transportation network

D. Municipal network

3.
1103
Which type of organization often has a person responsible for keepi
ng track of frequency

usage inside the organization?

A. Law enforcement

B. Hotspot

C. Hospital

D. Cruise ship

4. On which of these transportation networks is satellite a functional solution for providing

uplink to the Internet? (Choose all that apply.)

A
. Bus

B. Automobile

C. Train

D. Cruise ship

5. Fixed mobile convergence provides roaming across which of the following wireless tech
-

nologies? (Choose all that apply.)

A. Bluetooth

B. Wi
-
Fi

C. WiMAX

D. Cellular telephone

6.
1106
Which

of the following is typically the most important design criteria when designing a

warehouse WLAN?

A. Capacity

B. Throughput

C. RF interference

D. Coverage

7. Corporations typically install wireless networks to provide which of the following capabilities?


(Choose all that apply.)

A. Easy mobility for the wireless user within the corporate building or campus environment

B. High
-
speed network access comparable to wired networking

C. Secure access for employees from their homes or on the road

D.

The ability
to easily add network access in areas where installation of wired connections

is difficult or expensive

8. Last
-
mile Internet service is provided by which of the following? (Choose all that apply.)

A. Telephone company

B. Long
-
distance carrier

C. Cable pr
ovider

D. WISPs

9.
1109
Which of the following is the main purpose of a SOHO 802.11 network?

A. Shared networking

B. Internet gateway

C. Network security

D. Print sharing

10. Which of the following are examples of mobile office networking? (Choose all that

apply.)

A. Construction
-
site offices

B. Temporary disaster
-
assistance office

C. Remote sales office

D. Temporary classrooms

11. Warehousing and manufacturing environments typically have which of the following

requirements? (Choose all that apply.)

A. Mob
ility

B. High
-
speed access

C. High capacity

D. High coverage

12.
1112
Which of the following is least likely to be offered by a hotspot provider?

A. Free access

B. Paid access

C. Network authentication

D. Data encryption

13. Which of the following are good

uses for mobile networks? (Choose all that apply.)

A. Military maneuvers

B. Disaster relief

C. Construction sites

D. Manufacturing plants

14. Which of the following terms refer to the same network design? (Choose all that apply.)

A. PTP

B. PTMP

C. Hub and

spoke

D. Star

15. Most early deployments of 802.11 FHSS were used in which type of environment?

A. Mobile office networking

B. Educational/classroom use

C. Industrial (warehousing and manufacturing)

D. Healthcare (hospitals and offices)

16.
1116
When using a hotspot, you should do which of the following to ensure security back to your

corporate network?

A. Enable WEP.

B. Enable 802.1X/EAP.

C. Use an IPSec VPN
.

D. Security cannot be provided, because you do not control the access point.

17. What a
re some popular 802.11 applications used in the healthcare industry? (Choose all

that apply.)

A. VoWiFi

B. Bridging

C. RTLS

D. Patient monitoring

18. Multiple point
-
to
-
point bridges between the same locations are often installed for which of

the followin
g reasons? (Choose all that apply.)

A. To provide higher throughput

B. To prevent channel overlap

C. To prevent single point of failure

D. To enable support for VLANs

19. What are some of the key concerns of healthcare providers when installing a wireless
network?

(Choose all that apply.)

A. RF interference

B. Faster access to patient data

C. Secure and accurate access

D. Faster speed

20.
1120
Public hotspots typically provide which of the following security features?

A. Authentication
.

B. Encryption.

C.
TKIP.

D. No security is available.









Answers to Review Questions

1. A, B, D. The goal of fxed mobile convergence is to enable the user to have a single device

with a single telephone number and to enable the user to roam between different networks,

taking advantage of the least expensive network that is available.

2. C, D. Municipal and transportation networks are both specifc types of public hotspots.

Law
-
enforcement and frst
-
responder networks are hotspot
-
type networks, but they are not

intended

for public use.

3. C. Because of the potential for interference and the importance of preventing it, hospitals

often have a person responsible for keeping track of frequencies used within the organization.

Some municipalities are starting to do this as
well

not just for law enforcement, but for all

of their wireless needs, because they often use wireless technologies for SCADA networks,

traffc cameras, traffc lights, two
-
way radios, point to point bridging, hotspots, and more.

4. D. Since cruise ships

are often not near land where cellular or WiMAX uplink is available,

it is necessary to use a satellite uplink to connect the ship to the Internet.

5. B, D. Fixed mobile convergence allows roaming between Wi
-
Fi networks and cellular

telephone

networks, choosing the available network that is least expensive.

6. D. When designing a warehouse network, the networking devices are often barcode scanners

that do not capture much data, so high capacity and throughput are not typically needed.

Becaus
e the data
-
transfer requirements are so low, these networks are typically designed to

provide coverage for large areas. Security is always a concern; however, it is not usually a

design criteria.

7. A, D. Corporations typically install a WLAN to provide
easy mobility and/or access to

areas that are diffcult or extremely expensive to connect via wired networks. Although

providing connectivity to the Internet is a service that the corporate wireless network

offers, it is not the driving reason for instal
ling the wireless network.

8. A, C, D. The telephone company, cable providers, and WISPs are all examples of companies

that provide last
-
mile services to users and businesses.

9. B. The main purpose of SOHO networks is to provide a gateway to the Internet
.

10. A, B, D. Mobile offce networking solutions are temporary solutions that include all of the

options listed except for the remote sales offce, which would more likely be classifed as a

SOHO installation.

11. A, D. Warehousing and manufacturing envir
onments typically have a need for mobility, but

their data transfers are typically very small. Therefore, their networks are often designed for

high coverage rather than high capacity.

12. D. Hotspot providers are not likely to provide data encryption. I
t is more diffcult to

deploy, and there is no beneft or business reason for them to provide it.

13. A, B, C. Manufacturing plants are typically fxed environments and are better served by

installing permanent access points.

14. B, C, D. Point
-
to
-
multipoin
t, hub and spoke, and star all describe the same communication

technology, which connects multiple devices by using a central device. Point
-
to
-
point com
-

munications connects two devices.

15. C. Most of the 802.11 implementations used FHSS, with industrial (warehousing and

manufacturing) companies being some of the biggest implementers. Their requirement of

mobility with low data
-
transfer speeds was ideal for using the technology.

16. C.
To make wireless access easy for the subscriber, hotspot vendors typically deploy authen
-

tication methods that are easy to use but that do not provide data encryption. Therefore, to

ensure security back to your corporate network, the use of an IPSec VPN
is necessary.

17. A, C, D. VoWiFi is a common use of 802.11 technology in a medical environment, providing

immediate access to personnel no matter where they are in the hospital. Real
-
time location

system (RTLS) solutions using 802.11 RFID tags for inven
tory control are also commonplace.

WLAN medical carts are used to monitor patient information and vital signs.

18. A, C. The installation of multiple point
-
to
-
point bridges is either to provide higher through
-

put or to prevent a single point of failure.
Care must be taken in arranging channel and

antenna installations to prevent self
-
inficted interference.

19. A, B, C. Healthcare providers often have many other devices that use RF communications,

and therefore, RF interference is a concern. Fast access
along with secure and accurate access

is critical in healthcare environments. Faster access can be performed without faster speed.

The mobility of the technology will satisfy the faster access that is typically needed.

20. A. Public hotspots are most con
cerned about ensuring that only valid users are allowed

access to the hotspot. This is performed using authentication.