How many ports available exists on TCP/IP?
471493
In total there is 65535 UDP/TCP ports allocated . This number comes from an unsigned 16 bit integer. 2^16-1=65535. However, the first 1024 port numbers are reserved for common applications such as ftp (20,21), ssh (22), http (80) etc. This means that for other common applications there is "only" 64511 available port numbers.\nIf you write your own TCP/IP client server application, you are not allowed to use < reserved port number. But the 64511 available ones should be enough.
1107785
If you can change the port that you make the call on then use a port that is open.  ports above 1024 are a bit of a free for all, so there are no real conventions there.  But if all else fails try using ports that are typically open such as port 80 (for web traffic).  unfortunately this is probably the only port you can gurantee will be open on firewalls and often files transfers are done on this port when typically you would do it on port 21 (ftp).  you cannot break anything by trying a different port, all tht can happen is the software fails to connect
1732
To the best of my knowledge, there's no theoretical bottom limit to the speed of an internet connection, although individual programs may give up after a period of time, and assume that the message they were trying to send has been lost in transit.\n\nTo illustrate this, I've linked the (as far as I know, unused) proposal for transmitting IP packets (one of the fundamental units of data on the internet) via trained pigeons.\n\nWhile the attached proposal is certainly geek-humor, I hope it illustrates my point - as slow as your net is, it could always get even slower.
317851
TCP/IP is more efficient and will be faster than IPX/SPX/NetBIOS, but that might not be what you should be looking at first.\n\nDo you have the dual ports configured as a team, and if so, what type of team?  Are you using a switch or a hub between the two servers and how is that configured?  What are the speeds you are getting? \n\nYou want to use link aggregation so the two ports act as one big port.  You best option is 802.3ad dynamic trunking, which your cards support.  The key is that your switch has to support this as well and it needs to be appropriately configured.
92032
I subscibe to the above answer, and add this: you will anly be able to use it(even if you unblock it on your computer) if youre ISP ins't blocking that port.
885446
you need to open the ports (22 and/or 23) for ftp however leaving these open puts your machine at risk. Unless you need to do this then I would enable/disable as and when necessary.\n\nAs for the specifics then you need to be specific as we haven't a notion what firewall you are using.\n\nIf you have router to connect to the net then you shouldn't open your firewall ports but instead use a NAT on your ports to direct the traffic to/from 22 and/or 23 to the pc where you are funning ftp software.\n\nUsing NAT is more secure than leaving ftp ports open in your firewall.
792438
More than you have room for PC's in your house...\n\nThis totally depends on what kind of devices you will have and what protocols are in use. For most places, you communicate via IP. Again, most places have a private class c address, meaning that you can have 254 physical devices on the subnet. Now, devide this by the number of ports per switch (less one port for daisey chaining them) and this will give you the number of switches on your LAN.\n\nSo - too many variables - theoritical limit is millions - pratical is 8 (16 ports each).\n\nIf you are talking hub, then this goes way down due to probability of collisions. Switch eliminates this problem.
758692
An 11Mbps Ethernet bridge is enough.  That is quite fast :).
503385
When you are NAT'ing using a single IP addresas, the only thing you can do is port-forward. For example, lets say your external IP is 10.10.10.1 (let's pretend it's valid eventhough it's not), you may be able to have your router do PAT (port-address-translation) or port-forwarding by telling it to send all incoming port-80 sessions to a specific web-server. \n\nThe problem is that you have multiple web-servers, so you can only do port forwarding for one machine on port 80. Another option is to run one of the sites on port 8080 (or something different than 80), and do port forwarding on that particlar port.\n\nUltimately, here are you're two hurdles:\n\n(1) Your router/switch may not support PAT.\n(2) If it does, you only have 1 public external IP address and two distinct internal servers behind it.\n\nYour realy solution is to make sure that you do PAT (or get hardware that will support it), and to get a 2nd IP from your ISP.
989097
Some routing software allows such a limit\n\nYou will probably need to have a linux based router though and spend some time configing it
718877
How many computers are logged on. If you have a isp signal
147941
control panel, performance/maintanence, system,hardware, if you run windows, for more options, check the help menu your port isn't "broken" just not enabeled. you have to turn it on
75916
It's like LAN connection with another & diffrent port!
802005
use another open port to tunnel vnc using ssh. SSH actually even gives you an encrypted channel noone can listen in on...
706389
COM Port 3 is mostly used. Though you can select any COM Port that is not in use. Stick with COM 3 though.
635504
Yeah, it depends on internet traffic and the hop counts.  If  you want to goof around to see how a packet is routed from one destination to another open a command prompt (Start-->Run-->Type cmd-->click ok) type tracert <destination>, for example, do a tracert yahoo.com and see how many hop counts you get.  Have fun!
1154049
SMTP is port 25. To connect, use a telnet client. Therefore, I would answer C.