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Thread: Networking Questions

  1. #81
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    Re: Networking Questions

    Quote Originally Posted by mittra_ashish View Post
    Hi,
    Here are few questions?

    1. What is FTP & UDP?
    2. What is the difference between switch & router?
    3. As i know that DHCP works under a protocol in the name of "DORA". Can
    anyone explain me about "DORA"?
    4. Please explain me about the concept of "Kerboros" protocol & when i
    works?
    the main diffrence between switch and router is
    router is l3 devise
    switch is l2

    switch have the single broadcast doman
    router has the broadcast domain per interfce
    switch is best in lan
    router is based on wan
    Thanks
    jitendera sinha


  2. #82
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    Re: Networking Questions

    Quote Originally Posted by bashaece View Post
    what is main diffrence between DR and BDR
    in the ospf over broadcast n/w the term DR and BDr comes in account
    DR-refred is Deginagted router
    BDR= backup deginated router

    The consept behinad choosing the dr and bdr over broadcast n/w is that insteed of sahrinf each routing update of on the n/w segment it will sahre all information to dr and bdr

    dr and bdr is slected by Hello intervell and it is completly based upon router id


  3. #83
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    Thumbs down Re: Networking Questions

    Quote Originally Posted by mittra_ashish View Post
    Hi,
    Here are few questions?

    1. What is FTP & UDP?
    2. What is the difference between switch & router?
    3. As i know that DHCP works under a protocol in the name of "DORA". Can
    anyone explain me about "DORA"?
    4. Please explain me about the concept of "Kerboros" protocol & when i
    works?
    5.Difference between windows Xp and Windows Vista?


  4. #84
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    Re: Networking Questions

    What r the difference between windows xp and windows vista


  5. #85
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    Re: Networking Questions

    Hi,
    switch and hub.

    switch is a hardware based device which operates at high speed.
    switch has the concept of vlan and hence it has multiple broadcast domain.mac-addr table lookup is CAM.

    Hub is a multiport repeater which floods the frame(not broadcast).
    its does not have any intelligence.its an half duplex device.

    Last edited by devakumaran; 11-15-2009 at 10:24 AM.

  6. #86
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    Re: Networking Questions

    a vlan stands for a virtual local area network i.e you may have many vlans in a single network and people in the same vlan can communicate but can't do so to people in a different vlan


  7. #87
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    Re: Networking Questions

    DHCP (D)iscover
    DHCP (O)ffer
    DHCP (R)equest
    DHCP (A)ck
    Client makes a UDP Broadcast to the server about the DHCP discovery.

    2) DHCP offers to the client.

    3) In response to the offer Client requests the server.

    4)Server responds all the Ip Add/mask/gty/dns/wins info along with the acknowledgement packet.


  8. #88
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    Re: Networking Questions

    VLAN=Broadcast domain=subnet


  9. #89
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    Aug 2009
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    Re: Networking Questions

    Quote Originally Posted by kumar_7144 View Post
    Switch is a layer 2 device , works with mac address , faster than router , broadcasts the packets with in the network.when a switch is connected to a lan it broadcasts the packets to all the systems intially and learns the mac address of the pcs from their response builds up the mac address table.

    So when a packet has to sent again to a particular pc say pc1,it wont broadcast to all the systems just it ll unicast ie, send the packet directly to the pc1.

    Router is a layer 3 device capable of broadcasting packets out of a particular network as it has routing table where it stores the MAC and IP address of all the devices connect in the network.Using a router we can wave a path for packets for a network, get it filtered using access list etc....
    thanks for that


  10. #90
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    Lightbulb Re: Networking Questions

    Q,1. Difference b/w router and switch ?

    Ans. In simple words router is a machine to travel our data into different network
    and switch is a machine which work in lan.
    In future technologies the switch will work as layer 3 device.
    I hope u got their difference.

    Last edited by junisadna; 04-03-2010 at 12:12 PM.

  11. #91
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    Re: Networking Questions

    Ftp(file transfer protocol) and Udp(user datagram protocol)
    ftp is used to share files,transfer data from server to client and vice versa.
    It work on port 21 for control connection to server and data connection on port 20.simply to ftp to share files.

    UDP it is a transport layer protocol,connectionless,fast,unreliable,no acknowledge,best effort protocol used where to save processing time.used in real time applications.data is send and recieved in form of datagram or units.

    Last edited by junisadna; 04-03-2010 at 12:14 PM.

  12. #92
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    Lightbulb Re: Networking Questions

    Quote Originally Posted by dinesh_mcse View Post
    What r the difference between windows xp and windows vista
    Major difference b/w xp and vista is size,graphics,add-on feature like elemination of some feature and addition of new supporting motherboards.


  13. #93
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    Lightbulb Re: Networking Questions

    Quote Originally Posted by sjmurali View Post
    what is VLAN
    VLAN(virtual local area network)
    Its main purpose is to divide our network and provide security and defined access.
    In simple it help in logical grouping of network.


  14. #94
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    Re: Networking Questions

    VLAN (virtual loca area network)
    It is simply a logical way of grouping users on the network based on function irrespective of their geographical location.
    It helps in enforcing security within a network.


  15. #95
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    Re: Networking Questions

    this is venkat rangaraj. i realy glad to know the information about the netwoking side . can u give the total information about the networking . that means how it can be works, and ect.


  16. #96
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    Re: Networking Questions

    The Switch ports are grouped to different Vlans, so that end devices connected to those switch ports can limit any broadcast (what they do repeatedly to find out one another's IP addresses)to themselves.

    So, they are called Broadcast Domains.


  17. #97

    Re: Networking Questions

    tel me clearly abt router?


  18. #98
    Jorge Marrero
    Guest

    Re: Networking Questions

    very good tips from denarii systems If you really into networking and want to keep in deep study VPNS swl server QA and try to get a cisco certification you will be making 60-80ks a year . any question email me.


  19. #99
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    Re: Networking Questions

    difference between switch,bridge,hub?


  20. #100
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    Re: Networking Questions

    VLAN is Virtual LAN. Used on WAN's, Enterprise Networks etc... Makes trafic between different parts of the network seem like it's on a LAN. Usually used by large organisations to avoid the need to connect through ISP's for interoffice connections.


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