10.7.8 Practice Questions

Which of the following recommendations should you follow when placing access points to provide wireless access for users within your company building?
Place access points above where most clients are.
Place multiple access points in the same area.
Place access points near outside walls.
Place access points in the basement.

Place access points above where most clients are.

Your wireless network consists of multiple 802.11n access points that are configured as follows:
• SSID (hidden): CorpNet
• Security: WPA2-PSK using AES
• Frequency: 5.75 GHz
• Bandwidth per channel: 40 MHz
Because of the unique construction of your organization’s facility, there are many locations that do not have a clear line of sight between network clients and access points. As a result, radio signals are reflected along multiple paths before finally being received. The result is distorted signals that interfere with each other.
What should you do?
Implement antenna diversity.
Reduce the power of the access point radio signals.
Install directional access points.
Switch to RADIUS authentication for wireless clients.

Implement antenna diversity.

You have physically added a wireless access point to your network and installed a wireless networking card in two laptops running Windows. Neither laptop can find the network, and you have come to the conclusion that you must manually configure the wireless access point (AP).
Which of the following values uniquely identifies the network AP?
SSID
Channel
PS
WEP

SSID

You need to place a wireless access point in your two-story building. While trying avoid interference, which of the following is the best location for the access point?
On the top floor
In the kitchen area
Near the backup generators
In the basement

On the top floor

You are setting up a wireless hotspot in a local coffee shop. For best results, you want to disperse the radio signals evenly throughout the coffee shop.
Which of the following antenna types would you use on the AP to provide a 360-degree dispersed wave pattern?
Multi-point
Multi-directional
Omni-directional
Uni-directional
Directional

Omni-directional

You are troubleshooting a wireless connectivity issue in a small office. You determine that the 2.4GHz cordless phones used in the office are interfering with the wireless network transmissions.
If the cordless phones are causing the interference, which of the following wireless standards could the network be using? (Select two.)
Bluetooth
802.11b
802.3a
802.11a
Infrared

Bluetooth 802.11b

You are implementing a wireless network inside a local office. You require a wireless link to connect a laptop in the administrator’s office directly to a system in the sales department. In the default configuration, the wireless AP uses a 360-dispersed RF wave design. After installation, the signal between the two systems is weak, as many obstacles interfere with the signal.
Which of the following strategies could you try to increase signal strength?
Replace the directional antenna with an omni-directional antenna.
Increase the RF setting on the AP.
Increase the RF setting on the client system.
Replace the omni-directional antenna with a directional antenna.
Increase the RF power on the isotropic antenna.

Replace the omni-directional antenna with a directional antenna.

A user on your network has been moved to another office down the hall. After the move, she calls you complaining that she has only occasional network access through her wireless connection. Which of the following is most likely the cause of the problem?
The client has incorrect WEP settings.
An SSID mismatch between the client and the WAP.
An SSID mismatch between the client and the server.
The client system has moved too far away from the access point.
The encryption level has been erroneously set back to the default setting.

The client system has moved too far away from the access point.

You have been hired to troubleshoot a wireless connectivity issue for two separate networks located within a close proximity. Both networks use a WAP from the same manufacturer, and all settings, with the exception of SSIDs, remain configured to the default.
Which of the following might you suspect as the cause of the connectivity problems?
The SSIDs of the two server systems match.
WEP overlap.
Crosstalk between the RF signals.
Overlapping channels.
The SSIDs of the two client systems match.

Overlapping channels.

You have decided to conduct a business meeting at a local coffee shop. The coffee shop you chose has a wireless hotspot for customers who want internet access.
You decide to check your email before the meeting begins. When you open the browser, you cannot gain internet access. Other customers are using the internet without problems. You are sure your laptops wireless adapter works because you use a wireless connection at work. What is the likely cause of the problem?
Different LAN protocols are being used.
WAP is out of range.
Antenna strength on the WAP is too low.
A mismatched SSID.
PPP is not configured correctly.

A mismatched SSID.

After installing a new 2.4Ghz cordless phone system in your office, you notice that wireless network performance is adversely affected. Which of the following wireless networking standards are you most likely using? (Select two.)
802.11g
802.11a
Bluetooth
802.11b

802.11g 802.11b

A user calls to report that she is experiencing intermittent problems while accessing the wireless network from her laptop computer. While talking to her, you discover that she is trying to work from the coffee room two floors above the floor where she normally works. What is the most likely cause of her connectivity problem?
The user needs a new IP address because she is working on a different floor.
The user has not yet rebooted her laptop computer while at her new location.
The user has not yet logged off and back on to the network while at her new location.
The wireless network access point on the user’s normal floor has failed.
The user is out of the effective range of the wireless access point on her floor.

The user is out of the effective range of the wireless access point on her floor.

While configuring a new 802.11g wireless network, you discover another wireless network within range that uses the same channel ID that you intend to use. Which of the following strategies are you most likely to adopt in order to avoid a conflict between the networks?
Use 802.11b instead of 802.11g.
Use the same channel ID, but configure your wireless network to use WEP.
Use a different channel ID.
Use the same channel ID, but configure a different SSID.

Use a different channel ID.

Recently, a catastrophic early morning power surge occurred. It was followed by an outage that lasted longer than your backup equipment could supply temporary power.
After you powered the equipment back on, everything initially appeared to work correctly. However, ever since this event, some mobile users report that wireless network connections sometimes get dropped or perform very poorly.
What should you do? (Select two.)
Configure each access point to use 802.1x authentication.
Configure each access point to use a different SSID.
Set access point B to use 802.11n wireless networking.
Set the channel used by access point B to 11.
Set the channel used by access point B to 8.
Set access points A and C to use 802.11b wireless networking.
Set the channel used by access point A to 5.
Set the channel used by access point C to 7.

Set access point B to use 802.11n wireless networking. Set the channel used by access point B to 11.