chapter 20 questions

Question 1

An authentication protocol used for secure network access technologies.

Answer 1

EAP

Question 2

What is the purpose of a captive portal?

Answer 2

To provide authentication and security for networks in public places such as coffee shops, airports, hotels and stores.

Question 3

A wireless method used to connect certain Wi-Fi devices such as printers and security cameras to the Wi-Fi network without using any passwords.

Answer 3

WPS [WiFi Protected Setup]

Question 4

What is the purpose of site surveys and heat maps.

Answer 4

To determine Wi-Fi signal strengths in a network.

Question 5

A new connection protocol for WPA3 networks that allows users to add devices with limited or no display interface to a network by scanning QR codes.

Answer 5

Easy Connect

Question 6

Uses cipher to encrypt the data as it is transmitted through the air.

Answer 6

WEP [Wired Equivalent Privacy]

Question 7

Uses the flawed WEP algorithm with the Temporal Key Integrity Protocol

Answer 7

WPA [WiFi Protected Access]

Question 8

Uses 802.X to provide authentication and AES as the encryption protocol.

Answer 8

WPA2

Question 9

uses SAE and a protocol that uses QR codes for easy connect to networks.

Answer 9

WPA3

Question 10

Which IEEE’s shouldn’t be used today for security reasons?

Answer 10

WEP, WPA, and WPA2 due to being outdated with known vulnerabilities.

Question 11

Difference between PSK and Enterprise?

Answer 11

PSK requires a single password shared between all users, while Enterprise requires unique credentials for each user and is much more secure for it.

Question 12

An authentication standard that supports port-based authentication services between a user and an authorization device.

Answer 12

IEEE 802.1x

Question 13

When multiple Wi-Fi frequencies start to overlap on one another.

Answer 13

Channel Overlay

Question 14

How is SAE configured?

Answer 14

Set the security parameter k to a value of at least 40, per the recommendation in RFC 7664, “Dragonfly Key Exchange”.

Question 15

Provides useful information about wireless signals around the person using it.

Answer 15

Wi-Fi analyzer

Question 16

What is WEP’s flaw?

Answer 16

The initialization vector was of insufficient length to protect the channel.

Question 17

Why are different channels used with the 2.4 and 5 GHz frequencies?

Answer 17

To prevent channel overlap which cause wireless speed to slow down.

Question 18

A measure used in science and engineering that compares the level of a desired signal to the level of background noise.

Answer 18

Signal-to-Noise ratio

Question 19

What vulnerability does WPA2 possess?

Answer 19

It is weak against brute force offline attacks.

Question 20

What version of WPA uses TKIP and RC4?

Answer 20

WPA

Question 21

What version of WPA uses CCMP and AES?

Answer 21

WPA2

Question 22

What version of WPA uses QR codes for Easy Connect?

Answer 22

WPA3

Question 23

What is the purpose of the SSID?

Answer 23

To analyze wireless traffic, monitor network activity, identify security vulnerabilities, and troubleshoot networking issues.

Question 24

How does a federated connection work?

Answer 24

By connecting a device to multiple trusted networks in the same area.

Question 25

What are the 3 most common channels used on 2.4 GHz and why?

Answer 25

1, 6, 11. They are spaced out to prevent channel overlap.

Question 26

What is the relationship between Federation and RADIUS servers?

Answer 26

Both connect to trusted networks. RADIUS lets users connect to one network, while Federation lets users connect to multiple trusted networks.

Question 27

A model for establishing a large scale and diverse infrastructure for applications, and authenticate across multiple networks.

Answer 27

Federation

Question 28

Introduced MIMO, channel bonding, frame aggregation, up to 4 antennas. Has 2.4 or 5 GHz frequency.

Answer 28

WiFi 4

Question 29

Uses MU-MIMO, up to 8 antennas, beam forming. Has 5 GHz frequency.

Answer 29

WiFi 5

Question 30

Enchanced MU-MIMO, uses QAM (Quadrature Amplitude Modulation). Has 2.4 or 5 GHz frequency.

Answer 30

WiFi 6

Question 31

How many channels are on the 2.4 GHz frequency?

Answer 31

11

Question 32

A security protocol that encapsulates the Extensible Authentication Protocol within an encrypted and authenticated Transport Layer Security (TLS) tunnel.

Answer 32

PEAP

Question 33

Uses a pre-shared key called Protected Access Credential (PAC) to establish a TLS tunnel in which client credentials are verified.

Answer 33

EAP-FAST

Question 34

Uses TLS protocol to secure the authentication process.

Answer 34

EAP-TLS

Question 35

Having the server authenticate to the client with a certificate, but the protocol tunnels the client side of the authentication, allowing the use of legacy authentication protocols such as PAP, CHAP, and MS-CHAP. The authentication process is protected by the tunnel from man-in-the-middle attacks.

Answer 35

EAP-TTLS

Question 36

Family of digital modulation methods and a related family of analog modulation methods widely used in modern telecommunications to transmit information.

Answer 36

Quadrature amplitude modulation (QAM)

Question 37

A block cipher encryption protocol that's symmetric. It uses the same key to both encrypt and decrypt data.

Answer 37

AES

Question 38

A data encapsulation encryption mechanism designed for wireless use.

Answer 38

CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol)

Question 39

An organization that promotes the development and application of electrotechnology and allied sciences for the benefit of humanity, the advancement of the profession, and the well-being of our members.

Answer 39

IEEE (Institute of Electrical and Electronics Engineers)

Question 40

Credentials that are distributed to clients for optimized network authentication. Can be used to establish an authentication tunnel between client and server.

Answer 40

PAC (Protected Access Credentials)

Question 41

A password based key exchange method developed for mesh networks.

Answer 41

SAE (Simultaneous Authentication of Equals)

Question 42

A unique identifier assigned to a WiFi network that allows devices on the network to identify and connect to the correct network.

Answer 42

SSID (Service Set Identifier)

Question 43

What points should you consider when determining WAP placement in a business environment?

Answer 43

Somewhere in the center of the area or in a place where the signal can reach all parts of the building equally.