Windows admin interview questions

  1. Describe how the DHCP lease is obtained. It’s a four-step process consisting of (a) IP request, (b) IP offer, © IP selection and (d) acknowledgement.
  2. I can’t seem to access the Internet, don’t have any access to the corporate network and on ipconfig my address is 169.254.*.*. What happened? The 169.254.*.* netmask is assigned to Windows machines running 98/2000/XP if the DHCP server is not available. The name for the technology is APIPA (Automatic Private Internet Protocol Addressing).
  3. We’ve installed a new Windows-based DHCP server, however, the users do not seem to be getting DHCP leases off of it. The server must be authorized first with the Active Directory.
  4. How can you force the client to give up the dhcp lease if you have access to the client PC? ipconfig /release
  5. What authentication options do Windows 2000 Servers have for remote clients? PAP, SPAP, CHAP, MS-CHAP and EAP.
  6. What are the networking protocol options for the Windows clients if for some reason you do not want to use TCP/IP? NWLink (Novell), NetBEUI, AppleTalk (Apple).
  7. What is data link layer in the OSI reference model responsible for? Data link layer is located above the physical layer, but below the network layer. Taking raw data bits and packaging them into frames. The network layer will be responsible for addressing the frames, while the physical layer is reponsible for retrieving and sending raw data bits.
  8. What is binding order? The order by which the network protocols are used for client-server communications. The most frequently used protocols should be at the top.
  9. How do cryptography-based keys ensure the validity of data transferred across the network?  Each IP packet is assigned a checksum, so if the checksums do not match on both receiving and transmitting ends, the data was modified or corrupted.
  10. Should we deploy IPSEC-based security or certificate-based security? They are really two different technologies. IPSec secures the TCP/IP communication and protects the integrity of the packets. Certificate-based security ensures the validity of authenticated clients and servers.
  11. What is LMHOSTS file? It’s a file stored on a host machine that is used to resolve NetBIOS to specific IP addresses.
  12. What’s the difference between forward lookup and reverse lookup in DNS? Forward lookup is name-to-address, the reverse lookup is address-to-name.
  13. How can you recover a file encrypted using EFS? Use the domain recovery agent.
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8 Comments on Windows admin interview questions

  1. Vadivel Arunachalam
    Posted 2/5/2006 at 5:22 am | Permalink

    Hi
    Question:I have 8 different and 8 difernet DHCP scope for every network ,i mean for every subnets,but ,when all the subnet starting at one time ,i want to make the 2nd subnet work withthe high prority,i mean the 2nd sunet should get teh IP addressfrom the DHCP server first?How is it possible?

    please mail me bak.

    Thanks and regards
    vadivel Arunachalam

  2. Murali Krishnan
    Posted 10/11/2006 at 12:56 pm | Permalink

    Hi
    Question:I have 8 different and 8 difernet DHCP scope for every network ,i mean for every subnets,but ,when all the subnet starting at one time ,i want to make the 2nd subnet work withthe high prority,i mean the 2nd sunet should get teh IP addressfrom the DHCP server first?How is it possible?

    please mail me bak.

    Thanks and regards

  3. Posted 11/7/2006 at 3:46 am | Permalink

    Hi
    Question:I have 8 different and 8 difernet DHCP scope for every network ,i mean for every subnets,but ,when all the subnet starting at one time ,i want to make the 2nd subnet work withthe high prority,i mean the 2nd sunet should get teh IP addressfrom the DHCP server first?How is it possible?

    please mail me bak.

    Thanks and regards
    Subramanyam

  4. Jacob
    Posted 8/18/2007 at 12:06 am | Permalink

    I have a printer (dhcp enabled) . there are 2 dhcp servers both are running . When the printer is switched on Which DHCP server will it get the ip from .
    Can it be configured to always use one specific DHCP server

  5. shankar k
    Posted 10/6/2007 at 1:01 am | Permalink

    what is diffrence between normal IDE disk and RAID disk ?

  6. Nixon
    Posted 10/8/2007 at 3:56 am | Permalink

    Hi,

    How i can configured and troubleshoot DHCP server for mulipltle network and large domain environment

  7. vijay
    Posted 1/13/2008 at 3:05 am | Permalink

    hi

    DHCP scope created for eight different network but DHCP Server is one of the network in the eight network. So DHCP server First will give the ip for its own
    subnet. then rest of the network it will not give the ip untill the request come form the different network. for that reason we need to active relay agent. here the relay agent is router. router is the bridge for the different network.

  8. Naveen
    Posted 6/11/2008 at 12:34 am | Permalink

    DHCP four-step process consist;
    Discover
    Offer
    Requests
    Acknowledge

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