CWT-100 Online Practice Questions and Answers

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 non-overlapping channels are available in regulatory domains in the 2.4 GHz frequency band? Select one:

A. 14

B. 1

C. 3

D. 11

What device type is configured to respond when a probe request is received in a BSS?

A. Desktop

B. Switch

C. Laptop

D. AP

A device is a 3x2:2 device. How many spatial streams can it receive?

A. 3

B. 9

C. 6

D. 2

How many non-overlapping 20 MHz channels are available in the 5 GHz frequency band assuming the regulatory domain allows them all?

A. 11

B. 25

C. 24

D. 14

What is the maximum channel width supported by 802.11ac (VHT) in the standard?

A. 40 MHz

B. 80 MHz

C. 160 MHz

D. 20 MHz

A dual-band AP most likely supports what two frequency bands?

A. Sub-1 GHz and 2.4 GHz

B. 2.4 GHz and 60 GHz

C. 5 GHz and 60 GHz

D. 2.4 GHz and 5 GHz

Some APs come with a captive portal available within the AP, controller or cloud interface. For what would this captive portal most likely be used?

A. Guest access

B. Employee access

C. Executive management access

D. Long-term contractor access

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

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