Wireless Communication and Networking Quiz

When looking at the wireless spectrum, what happens to the frequency and wavelength when going from radio waves to microwaves, to infrared, to ultraviolet, to x-rays, to gamma-rays?

• The frequency increases while the wavelength decreases.

• The frequency decreases while the wavelength increases.

• Both frequency and wavelength increase.

• Both frequency and wavelength decrease.

How many channels are available for 802.11 (Wi-Fi) in Japan?

• 11

• 13

• 14

• 16

In the United States, how many channels are typically available for an 802.11 wireless network operating in the 2.4 GHz band?

• 9

• 10

• 11

• 12

How many channels does a standard Bluetooth connection utilize?

• 37

• 79

• 40

• 22

How many channels does the Zigbee protocol typically utilize in the 2.4GHz band?

• 11

• 14

• 16

• 20

On a corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?

• A router with subinterfaces configured on the physical interface that is connected to the switch

• A switch with a trunk link that is configured between the switches

• A hub connecting all VLANs

• A repeater for each VLAN

On a corporate network, hosts on the same VLAN can communicate with each other, even if they are in different buildings on different switches. What is needed to allow communication between the same VLAN hosts?

• A router with subinterfaces

• A hub connecting all VLANs

• A repeater for each VLAN

• A switch with a trunk link that is configured between the switches

Which of the following statements is TRUE regarding the 802.1Q standard for VLANs?

• 802.1Q allows for the creation of multiple broadcast domains on a single physical network segment by tagging frames with VLAN IDs.

• 802.1Q is used for wireless network configurations.

• 802.1Q is a standard for IP address allocation.

• 802.1Q is a protocol for network security.

When we created VLANs in the lab, we assigned a VLAN number (such as 3 or 99) to the switch’s:

• IP Addresses

• Ports/Interfaces

• Subnets

• Routers

How many bits are required to represent a virtual local area network identifier in an ethernet frame?

• 8 bits

• 10 bits

• 12 bits

• 16 bits