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How many TCP segments are required to establish a TCP connection? What important control information is carried in these TCP segments, and why?
Here is the wikipedia article on TCP and here is the RFC. In the future, don't just paste your assignments verbatim.
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I learnt that SIP can be implemented using UDP.
Is there a way the same can be implemented using TCP ???
Thanks
SIP can not only work with UDP and TCP but also with other Transport layer protocols, like SCTP, or Application layer protocols like TLS. For a brief introduction I suggest reading Wikipedia page about SIP
SIP also allows you to switch transport protocols during the session (for example, if a message overpasses Maximum Transfer Unit size).
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This shows a network of 3 workstations and a router. below is the routing table of PC 1
If PC1 sends a packet to PC 2. How would it get to the destination?
As I have understood PC1 would refer its routing table, and broadcast the packet.For that which entry in the routing table would it make use of?
It's the third entry in your routing table: 172.16.18.0/24 is routed through 172.16.18.1 which is local network interface. Thus the OS knows that packets to this network should be delivered through this interface.
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What solution do you think of following situation :-
Switch X, is connected to router A and router B. Where both routers are for internet connection.
Router A has DHCP running and have ip on lan 192.168.1.1/24.
Router B has DHCP running and have ip on lan 192.168.100.1/24.
Though these two are on same physical network, but logically are on different LANs.
Now let's call these LAN-1 and LAN-2 respectively.
How can one computer on LAN-1 connect to other computer on LAN-2.
You have to provide routing from LAN-1 to LAN-2 for interconnecting 2 networks.
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How can I use internet on my phone with GPRS when my sim is actually GSM and the two are different technologies.
Your SIM card have nothing to do with technology used for data transfer.
SIM only contains identification of subscriber (Subscriber identity module) and maybe some auth/encryption process (A3/A5), thus it's on modem, if is capable with GPRS/EDGE/HSDPA (and of course operator's network)
Only thing to note is the "phase" of your SIM card.
However, it's only information, with which extension is your SIM capable.
You can read ETSI TS 131 102 or ETSI TS 121 111 documents for some details, there are available on http://www.etsi.org
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At my current place of employment, on my Windows box, when I do an ipconfig /all from my command prompt I see that I have both a static IP address as well as a dynamic IP address. Why could that be? I am trying to diagram our network structure for a new software project that I'm on...knowing the answer to this question could help out a lot.
You have multiple NICs and are multi-homed?
These are from different interfaces. You could be on a VPN, have a wireless connection, or have 2 network cards.
One possible reason is if you need to have multiple host names/IPs for a computer with a single NIC. See this link for more information. Personally I can't see why this would be necessary, but it seems that Windows does provide a means to do it anyways.