Shared Flashcard Set

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16
Computer Science
Undergraduate 4
04/29/2012

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Cards

Term
How does a captive portal know who is authenticated?
Definition
MAC and IP address filtering
Term
What are the limitations (3) of Captive portals?
Definition
IP and MAC address spoofing

Without a browser a user can't access the web

Unexpected errors if they have errors etc
Term
What is a VLAN?
Definition
Transfer as if they're on the same broadcast domain, regardless of their physical location.

It's like a LAN, but they're not physically connected
Term
What's a downside of VLAN?
Definition
They must share bandwidth which means that they are likely to suffer from congestion and throughput
Term
What's a wifi mesh network?
Definition
A communications network made up of radio nodes organized in a mesh topology
Term
What two ways can packets be transferred?
Definition
Root (Route maybe that means?) or Flood
Term
What's good about wifi mesh networks?
Definition
If one node can no longer operate, the rest of the nodes can still communicate with each other
Term
What's bad about wifi mesh networks?
Definition
Dependent on harmony with each other
Term
What's the security like for WiFi- mesh networks?
Definition
Shit
Term
What protocol does WiFi mesh networks use for Sec?
Definition
Sumultaenous Authentication of Equals
Term
What does SAE do?
Definition
When peers discover each other (and security is enabled) they take part in an SAE exchange. If SAE completes successfully, each peer knows the other party possesses the mesh password and, as a by-product of the SAE exchange, the two peers establish a cryptographically strong key
Term
What is SAE resistant to?
Definition
Active, passive and dictionary attacks
Term
What is the name of the key used in SAE?
Definition
Authenticated mesh peering exchange (AMPE)
Term
What does WiMax stand for?
Definition
Worldwide interoperability for microwave access
Term
What range does WiMax offer for MAN?
Definition
30miles
Term
What are MANETs particularly vulnerable to?
Definition
DOS
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