Chapter 11 & 15

Question 1

A company has hired you to troubleshoot an existing 802.11 b/g WLAN. The end users are reporting having difficulties with throughput and performance. What are some of the possible causes of the difficulties? (Choose Three)

Answer 1

• Multipath interference
• Inadequate capacity planning
• Co-channel interference

Question 2

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

Answer 2

Data encryption

Question 3

Corporations typically install wireless networks to provide which of the following capabilities? (Choose Two)

Answer 3

• Easy mobility for wireless users within the corporate building or campus
• The ability to easily add network access in areas where installation of wired connections is difficult or expensive

Question 4

Which of the following is typically the most important design criteria when designing a warehouse WLAN?

Answer 4

Coverage

Question 5

What type of hardware is usually required when installing APs to be used for outdoor wireless coverage?

Answer 5

NEMA Enclosure

Question 6

A company has hired you to make recommendations about a future wireless deployment that will require more then 300 access points to meet all the coverage requirements. What is the most cost effective and practical recommendation to provide electrical power to the access points?

Answer 6

Recommend that the customer replace older edge switches with new switches that have inline PoE

Question 7

You have been hired to conduct an indoor site survey. What information will be in the final site survey report that is delivered? (Choose Three)

Answer 7

• Access point transmit power settings
• AP Placement
• Antenna orientation

Question 8

What are some additional recommendations that may be included along with the final site survey report? (Choose Two)

Answer 8

• Security recommendations

- Training recommendations

Question 9

What factors need to be considered when planning for capacity in a WLAN?

Answer 9

• Data applications
• User Density
• Peak usage level
  (ALL OF THE ABOVE)

Question 10

Name a unique consideration when deploying a wireless network in a hotel or other hospitality business.

Answer 10

Aesthetics

Question 11

What are some key concerns of healthcare providers when installing wireless networks? (Choose Three)

Answer 11

• Secure and accurate access to applications
• RF interference
• Convenient access to patient data

Question 12

What roaming issues should be discussed during an interview for a future VoWiFi network? (Choose Two)

Answer 12

• Layer 3 boundaries

- Latency

Question 13

Last-mile Internet service is provided by which of the following? (Choose Three)

Answer 13

• WISPs
• Cable provider
• Telephone company

Question 14

What additional documentation is usually provided along with the final site survey deliverable? (Choose Three)

Answer 14

• Implementation Diagrams
• Project schedule and costs
• Bill of materials

Question 15

When using a public hotspot, you should use which of the following to ensure security back to your corporate network?

Answer 15

Use an IPSec VPN

Question 16

What documents might be needed prior to performing an indoor site survey for a new WLAN? (Choose Two)

Answer 16

• Network topology map

- Blueprints

Question 17

A coffee shop company has hired you to make recommendations about deploying wireless hotspots in 500 coffee shops across the country. What solutions might you recommend? (Choose Two)

Answer 17

• Captive portal authentication (Walled Garden)

- 802.11 b/g access points

Question 18

Warehouse and manufacturing environments typically have which of the following requirements? (Choose Two)

Answer 18

• High Coverage

- Mobility

Question 19

What is typically the main purpose of a SOHO 802.11 network?

Answer 19

Internet Access

Question 20

Which of the following are examples of mobile office networking? (Choose Three)

Answer 20

• Temporary classrooms
• Construction-site offices
• Temporary disaster-assistance office

Question 21

During the interview process, which topics will be discussed so that the WLAN will integrate properly into the existing wired architecture?

Answer 21

• PoE
• Segmentation
• User Management
• Infrastructure Management
  (ALL OF THE ABOVE)

Question 22

Public hotspots typically provide which of the following security features?

Answer 22

Authentication

Question 23

A company has hired you to troubleshoot an existing WLAN. The end users are reporting having difficulties when roaming. What are some possible causes? (Choose Two)

Answer 23

• There is interference from 2.4GHz portable phones
• The RF coverage cells have only 5 percent overlap. Fifteen to 20 percent overlap is normally needed for seamless roaming.

Question 24

Which of the following best describe security considerations during a wireless site survey? (Choose Three)

Answer 24

• Recommendations about “Wireless Security Policies” may also be made
• Questions will be asked to define the customer’s security expectations
• Wireless security recommendations will be made after the survey

Question 25

A hospital has hired you for a wireless site survey. Prior to the site survey, employees from which departments at the hospital should be consulted? (Choose Three)

Answer 25

- Network management - Biomedical department - Hospital Security