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7 Written questions

6 Multiple choice questions

  1. - based on EAP framework; negotiate authentication method at startup.
    - 802.1X standard.
    - uses AES
  2. - associated with point-to-point networks.
    - point to point transmission with one sender and one receiver.
  3. - developed before 802.11a.
    - data throughput of up to 11Mbps.
    - most widely used standard; as a result the frequency is crowded; might run into interference from other wireless devices.
    - networks secured through use of WPA and WEP.
    - 2.4 ghz
  4. allows an anonymous message to be displayed on victims device.
  5. - operates in different frequency range - 5 GHZ.
    - less prone to interference.
    - greater speeds.
    - not as widely used.
  6. - straight out of the box, no security configured at all.
    - WAPs are usually configured to broadcast their presence.
    - each wireless network node and access point needs the same SSID.
    - could choose not to broadcast SSID.
    - Also could implement MAC filtering.

6 True/False questions

  1. WEPdata link layer does not understand IP addresses.
    ARP sends out request, who owns IP address? this is used to build table of MAC 48 bit addresses to IP addresses.
    - defined in RFC 826.
    - vulnerable to ARP poisening ( adding bogus entries to ARP cache).


  2. Circuit switching- needs to establish an end to end path before transmission.
    - analogue networks.
    - ISDN
    - PPP


  3. switches- Similar to bridge in that it routes frames.
    - most commonly used to connect individual computers.


  4. Multicasttransmission of frames to a subset of the machines on the broadcast network.


  5. ARPdata link layer protocol described by the 802.11 standard.
    - uses RC4 often reuses IV.
    - many installations use the same shared key for all users, so each user can read each others traffic.
    - vulnerable to a number of known attacks.


  6. bridgestransmission of frames to all machines on the broadcast network.


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