CWT-100 Online Practice Questions and Answers

In what way are 802.11 channels defined?

A. By a high frequency and channel width

B. By channel width alone

C. By a center frequency and channel width

D. By a low frequency and channel width

What can occur when two copies of a signal wave arrive at the receiver at the same time, but 180 degrees out of phase which each other?

A. Increased signal amplitude

B. Bits may be added to the total count

C. Increased signal strength

D. Signal nulling or cancellation

How many channels are available in the 2.4 GHz frequency band in all regulatory domains? Select one:

A. 3

B. 14

C. 13

D. 11

What antenna would be best for a long distance (more than 5 kilometers) bridge link? Select one:

A. Panel

B. Parabolic dish

C. Patch

D. Omnidirectional

What best describes passive scanning used to locate WLANs?

A. Sending probe requests and listening for probe responses

B. Scanning in only on frequency band

C. Listening for beacon frames from the APs

D. Scanning on only one channel

An AP has two Ethernet ports on the back and another port that looks similar to an Ethernet port. For most enterprise APs, how many of these ports can be used for Power over Ethernet (PoE)?

A. 1

B. 3

C. 0

D. 2

What is the maximum power that an 802.3at Power over Ethernet (PoE) injector can output in the Ethernet interface?

A. 30 W

B. 15.4 W

C. 12.95 W

D. 25.5 W

You are configuring WPA2 for use on an AP. What encryption method should be used to ensure the highest security?

A. TKIP/RC4

B. TKIP/AES

C. CCMP/RC4

D. CCMP/AES

You have configured a WLAN profile on a client computer for a hidden SSID network. The SSID operates in both 2.4 GHz and 5 GHz. The profile never connects or even attempts to connect. What is the most likely configuration error in the profile or on the computer?

A. Wrong passphrase

B. Band selection is configured for 5 GHz-only

C. Wrong SSID

D. Band selection is configured for 2.4 GHz-only

When clients are using unacceptably low data rates for WLAN transmissions, what metric is too low?

A. SNR

B. Interference strength

C. Noise floor strength

D. MTU size