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IPV6 Test

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6 Written Questions

6 Multiple Choice Questions

  1. Long strings of zeros may be shortened with :: (you can only substitute once in an address!)
    For example
    2001:DB8:0:0:8:800:200C:417A becomes 2001:DB8::8:800:200C:417A
  2. IPv6 uses a fixed length subnet mask. All Subnets are /64
    Simplified packet header.
    This facilitates efficient routing
    No header checksum to calculate
    -Link layer and higher layer checksums are relied upon for header integrity
  3. An Anycast address is an address that is applied to more than one interface.
    When a packet is routed to an Anycast address it is delivered to the first interface discovered configured with that Anycast address
  4. When a packet is sent to a multicast address the packet is delivered to all hosts that are assigned that multicast address
  5. Maximum transmit unit:

    Path MTU Discovery
    -Packet is sent using routers MTU, any router along the way that can not handle the packet sends an ICMPv6 packet to big message back with its MTU
  6. IPv6 uses a 128 bit address space
    That is about 340,282,366,920,938,000,000,000,000,000,000,000,000 addresses

5 True/False Questions

  1. Need for IPV6More Addresses
    Security Support Mandatory
    Global Multicast Support
    No Broadcasts
    Mobility
    Simplified Routing
    Fixed Extendable Header
    No Packet Fragmentation
    Auto Configuration

          

  2. No packet fragmentationIPv6 uses a fixed length subnet mask. All Subnets are /64
    Simplified packet header.
    This facilitates efficient routing
    No header checksum to calculate
    -Link layer and higher layer checksums are relied upon for header integrity

          

  3. Unicast address typesGlobal address
    Link-local address
    Unique-local address

          

  4. Link-LocalUnique local address are similar in nature to IPv4 private Addresses in that they are not assigned by a numbering authority, however they are probably globally unique and are routable within participating sites

          

  5. Global Multicast SupportWhen a packet is sent to a multicast address the packet is delivered to all hosts that are assigned that multicast address

          

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