Dhcp ??

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    Training Course questions: (Edited with answers)

    1. Assume a DHCP Server is configured with a lease of 30 days. A Windows client receives
    an IP address from this server and 5 days later, when the client machine boots, the DHCP
    server which assigned the IP address is not available. Explain what will happen. Be very
    specific in your answer.

    If the DHCP server is unavailable the client will try to ping the previously assigned default gateway to determine if it’s on the same network. If the gateway responds and the lease hasn’t expired the client retains the IP Address. If the gateway doesn’t respond the client will send a discover packet to begin the lease process over.

    2. If your server had two network cards and you wanted it to provide DHCP services through
    only one of the cards, where would you configure this?

    You can configure these settings through DHCP – IPv4 – properties – Advanced – Change server connection bindings: Bindings

    3. Explain when it would be practical to define a new user class?

    It would be practical to define a new user class when you want some workstations in the network to be able to use a specific router as their default gateway or specific DNS server as their server.

    4. Explain when a super scope should be created?

    A superscope should be created when you are running out of IP addresses on a network. For example assume the DHCP is set up to use the scope Then you want to add another scope from the same class (Class C), so you can use, then continue 2,3,4 etc.

    5. What does it mean if your computer is configured with an IP address from the 169.254

    If your computer is configured with an IP address of 169.254 it means that you lost connection to the network so your system is not able to find a DHCP server to get an IP address from automatically. So, in this situation, Windows will automatically assign an IP address to itself starting with 169.254. This procedure is called Automatic Private Internet Protocol Addressing (APIPA).

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