Bits & Bytes: Week V - IV - Wireless Network Configurations, Channels, and Security)

Question 1

This type of wireless network doesn’t typically have any network infrastructure. Nodes within range all speak directly to each other.

Answer 1

Ad-hoc Network

Question 2

Sharing data between smartphones, communication between equipment in a warehouse, and communication during a disaster event are examples of when __ _________ network might be used.

Answer 2

Ad-hoc network

Question 3

What is the most common type of wireless network used in business settings?

Answer 3

A WLAN

Question 4

ACRONYM:

WLAN

Answer 4

Wireless Local Area Network

Question 5

This type of wireless network consists of mostly wireless access points which are connected to a wired network wirelessly.

Answer 5

a Mesh Network

Question 6

Individual, smaller sections of the overall frequency band used by a wireless network

Answer 6

Channels

Question 7

What 3 channels never overlap on n 802.11b network?

Answer 7

Channels 1, 6, and 11

Question 8

If a channel operates at 2412 megahertz and has a width of 22 megahertz, what are its range of frequencies?

Answer 8

2401 - 2423 megahertz

Question 9

ACRONYM:

WEP

Answer 9

Wired Equivalent Technology

Question 10

What is a wireless encryption technology that only provides a very low level of privacy?

Answer 10

Wired Equivalent Technology provides as much security as sending unencrypted data over a wired network

Question 11

In data encryption, what correlates with a higher level of security?

Answer 11

Longer keys (or more bits)

Question 12

How many bits is in a WEP encryption key?

Answer 12

40 bits

Question 13

ACRONYM:

WPA

Answer 13

WiFi Protected Access

Question 14

How many bits are in a WPA encryption key?

Answer 14

128 bits

Question 15

What is the most commonly used encryption algorithm for wireless networks?

Answer 15

WPA2

Question 16

How many bits are in a WPA2 encryption key?

Answer 16

256 bits

Question 17

Configuring WAPs to only allow for connections from a specific set of trusted MAC addresses is known as what?

Answer 17

MAC filtering

Question 18

What’s another term for cellular networking?

Answer 18

Mobile networking

Question 19

What is a major difference between cellular and wifi signals?

Answer 19

Cellular signals can travel over much longer distances more easily.

Question 20

This protocol is an interoperable, wireless, Radio Frequency (RF)-based communications technology designed specifically for control, monitoring and status reading applications in residential and light commercial environments

Answer 20

Z-Wave Protocol

Question 21

This wireless protocol is the only complete loT solution, from the mesh network to the universal language that allows smart objects to work together

Answer 21

Zigbee Protocol

Question 22

This wireless protocol is built for the complexities of the IoT, addressing challenges such as interoperability, security, power, and architecture requirements. It is a low-power wireless mesh networking protocol based on the universally supported Internet Protocol (IP), and built using open and proven standards.

Answer 22

Thread Protocol