Security Plus Chapter 9

Front 1

Name two types of wireless Networks?

Back 1

1. ad hoc mode: peer-to-peer
2. Infrastructure mode: connections are made through wireless access point.
   

Front 2

What does the IEEE standard 802.11 define?

Back 2

Wireless networks

Front 3

There are four wireless standards what are they?

Back 3

802.11 (a, b, g, n) A is not compatible with the other three.

Front 4

802.11n uses two new features to achieve higher transfer rates what are they?

Back 4

1. Multiple Input Multiple Output (MIMO) by using multiple antennas to achieve more throughput .
2. Channel Bonding uses multiple channel to achieve more throughput.
   

Front 5

Different Wireless Standards

Back 5

802.11a 802.11b 802.11g 802.11n
Frequency 5 GHz 2.4 GHz 2.4 GHz 2.4 GHz or 5 GHzTransfer Rate 54 Mbps 11 Mbps 54 Mbps Up to 600 MbpsRange 150 Feet 300 Feet 300 Feet 300 FeetCompatibility a b/g/n b/g/n a/b/g

Front 6

Name the different wireless standards.

Back 6

1. 802.11a
   
2. 802.11b
   
3. 802.11g
   
4. 802.11n

Front 7

Which Wireless standard is incompatible with the 802.11b and 802.11g wireless standards?

Back 7

802.11a

Front 8

Which Wireless standard is the oldest?

Back 8

802.11a

Front 9

Which Wireless standard is compatible with 802.11a and why?

Back 9

802.11n is compatible because, the MIMO scheme of 802.11n does not require simultaneous use of both the 5-GHz and the 2.4-GHz bands.

Front 10

The different Wireless Standards operate on different Frequency Ranges what are they and which standard is associated with each?

Back 10

1. 802.11a 5 GHz
   
2. 802.11b 2.4 GHz
3. 802.11g 2.4 GHz
4. 802.11n 2.4 GHz and 5 GHz

Front 11

The different Wireless Standards operate on different Transfer Rates what are they and which standard is associated with each?

Back 11

1. 802.11a 54 Mbps
2. 802.11b 54 Mbps
3. 802.11g 54 Mbps
4. 802.11n Up to 600 Mbps

Front 12

The different Wireless Standards operate on different Ranges (distances) what are they and which standard is associated with each?

Back 12

1. 802.11a 150 feet
   
2. 802.11b 300 feet
3. 802.11g 300 feet
4. 802.11n 300 feet

Front 13

What is MIMO?

Back 13

The wireless LAN IEEE draft standard that uses multiple input/multiple output technology to boost (MIMO) Wi-Fi speeds to over 100Mbps.

Front 14

What can be done if one is experiencing interference on their wireless network?

Back 14

Change channels on the wireless network

Front 15

What are the different Antenna types and what are their characteristics?

Back 15

1. Omnidirectional 360-degree radius short distances use more power.
2. Directional one direction covers longer distances,
   

Front 16

What is Wired Equivalent Privacy WEP?

Back 16

IT is a security protocol, specified in the IEEE Wireless Fidelity (Wi-Fi) standard, 802.11b, that is designed to provide a wireless local area network (WLAN) with a level of security and privacy comparable to what is usually expected of a wired LAN by requiring anyone connecting to the network to use a wireless key or passphrase.

Front 17

WEP can use ___________ or ____________ encryption

Back 17

64-bit or 128-bit

Front 18

What is WAP (Wireless Application Protocol)?

Back 18

Is a specification for a set of communication protocols to standardize the way that wireless devices, such as cellular telephones and radio transceivers, can be used for Internet access, including e-mail, the World Wide Web, newsgroups, and instant messaging.

Front 19

What was WAP designed to improve upon?

Back 19

Security and to fix some of the flaws found in WEP.

Front 20

What kind of encryption key does WAP use?

Back 20

1. A 128-bit key and the Temporal Key Integrity Protocol (TKIP) which is a protocol used to change the encryption keys for every packet that is sent.
2. Improved integrity checking
3. Supports authentication using the Extensible Authentication Protocol (EAP) that can use Kerberos, token cards, certificates and smartcards.
   

Front 21

EAP messages are encapsulated inside _______ packets for network access authentication with wired or wireless networks.

Back 21

802.1x

Front 22

Two common EAP protocols are LEAP and PEAP describe them.

Back 22

1. LEAP is the Light Extensible Authentication proprietary Protocol created by Cisco.
2. PEAP Protected Extensible Authentication Protocol used to encapsulate EAP messages over a secure Tunnel that uses Transport Layer Security (TLS) Creates a secure tunnel between two points.
   

Front 23

What are the WPA operating modes?

Back 23

1. WPA Personal (WPA-PSK): which means WPA preshared key. Used in homes. Uses (TKIP)
   
2. WPA Enterprise: WPA-802.1x uses RADIUS for authenticating and auditing. Used by larger companies. Uses CCMP AES for symmetric encryption.
   

Front 24

What is first step when using the Wireless Networking Best Practices?

Back 24

1. Change admin password
   

Front 25

What is the Service Set Identifier (SSID) and what should you do once it is changed?

Back 25

The name you give your wireless network. You should configure the router not to advertise the SSID by disabling SSID broadcasting.

Front 26

What can the tools Kismet and NetStumbler be used for?

Back 26

To do a wireless survey to get a list of wireless networks that are nearby.

Front 27

What is a Captive Portal?

Back 27

It forces a person to authenticate to the network via a web page before Internet access is allowed.

Front 28

Name seven best practices for Security when setting up a network.

Back 28

1. Change admin password
2. Set SSID
3. Use MAC filtering
4. Configure encryption WEP, WPA, WPA2
   
5. Place the access point in the center of the building
6. Lower power levels to control signal distance
7. Use VPN for high security
   

Front 29

Name seven vulnerabilities that wireless Networks have?

Back 29

1. Data Emanation, Jamming/Interference and Packet Sniffing.
2. War Driving/Chalking
3. SSID Broadcasting
4. WPS and Replay Attacks
5. Blue-jacking and Blue-snarfing
6. Rogue Access Points and Evil Twins
7. Weak Encryption and IV Attacks
   

Front 30

WEP, WPA and WPKA2 have been cracked what should you treat wireless clients?

Back 30

Yes all three have been cracked therefore wireless clients should be treated as remote clients and VPN should be used.

Front 31

Why is it necessary to perform Site Surveys?

Back 31

To find rogue devices.

Front 32

What is Near Field Communication?

Back 32

A type of wireless communcation that is a smart phone standard that allows you to bring the mobile devices withing inches of one another to transfer information.