169 9

(Choose three.)

If three 802.11b access points need to be deployed in close proximity, which three frequency channels should be used?

• 11

• 6

• 1

• 3

• 8

Answer explanation

Channels 1, 6, and 11 are the only channels that don't overlap with each other in the 802.11b standard. They have a 5 MHz frequency separation between each other, which minimizes interference between access points operating on these channels.

Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?

• 802.11a

• 802.11n

• 802.11b

• 802.11g

Which method of wireless authentication is currently considered to be the strongest?

• WEP

• WPA

• WPA2

• Shared Key

• Open

(Choose two)

Which of the following authentication methods has the user enter a pre-shared password?

• Open

• WPA Personal

• WPA Enterprise

• WPA2 Personal

• WPA2 Enterprise

(Choose two.)

What are the best ways to secure WLANs?

• Authentication

• SSID CLoaking

• Encryption

• MAC Address Filtering

Answer explanation

Authentication:

1. Access Control: Authentication ensures that only authorized users and devices can connect to the WLAN, preventing unauthorized access and bolstering network security.

3. User Accountability: Authentication mechanisms track and log user access, aiding in auditing and security incident investigations, and holding users accountable for their actions on the network.

Encryption:

1. Data Confidentiality: Encryption scrambles data during transmission, preserving confidentiality by preventing unauthorized eavesdropping and safeguarding sensitive information.

3. Data Integrity and Privacy: Encryption maintains data integrity and privacy, protecting against unauthorized data modification during transmission and providing a secure and private communication channel within the WLAN.

(Choose two.)

A laptop cannot connect to a wireless access point.

Which two troubleshooting steps should be taken first?

• Ensure that the wireless NIC is enabled

• Ensure that the wireless SSID is chosen

• Ensure that the correct network media is selected

• Ensure that the NIC is configured for the proper frequency

Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?

• Outside local

• Outside global

• Inside local

• Inside global