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Computer Networking

Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.

18,810 Questions

Is snopes true?

Yes, it usually is. So are other fact-checking publications like Politifact.com and factcheck.org, as well as the Washington Post Fact-Checker. As a professional researcher and professor, I often turn to these sites to verify whether certain internet memes or claims have any truth to them.

Which device is used to communicate between broadcast domains?

A router. The key word is create. you can not create a domain using a switch, repeater, or hub.

How do you get someones ip address?

If you mean the email address of other WikiAnswers contributors, then you have to ask them on their message board. Just keep in mind that the message boards are not private; anyone can read them.

Which port does ping uses?

The answer is none.

No ports required for Ping as it uses icmp packets.

It needs to allow icmp 'echo-request' (type 8) packets out and icmp 'echo-reply' (type 0) packets in.

If you need to check the availability of a port, you must use a different tool, such as Paping.
It doesnt use any port. Echo request is an ICMP message which is an Internet Layer Protocol so it is sent as an IP datagram.

If you need to check the availability of a port, you must use a different tool, such as Paping.

What is the advantage of a dedicated server?

A safe and secure server that your information is transferred through can give you peace of mind. This is one of the benefits of dedicated server hosting.

Name one snap-in contained in a Computer Management console.?

active x control the correct answers are: 1.Event Viewer 2.System Information 3.Device Manager 4.Disk Management 5.Disk Defragmenter 6.Services Console

How do you increase signal strength in optical fiber?

You have to further clarify your question - it's too broad.

Signal strength can be increased during each of these phases of the OF's life:

* either during the design phase,

* during manufacturing using special manufacturing techniques, and

* during final installation and usage.

For each of these, the answer is very complex.

Also say if you are looking for a general (lay person's) explanation or a detailed (optics, physics) explanation.

What are features of RIP?

RIP Characteristics " RIP has the following key characteristics: RIP is a distance vector routing protocol. RIP uses hop count as its only metric for path selection. Advertised routes with hop counts greater than 15 are unreachable. Messages are broadcast every 30 seconds. The data portion of a RIP message is encapsulated into a UDP segment, with both source and destination port numbers set to 520. The IP header and data link headers add broadcast destination addresses before the message is sent out to all RIP configured interfaces.

Difference between expanded and extended memory?

Extended memory

Memory addresses greater than or equal to one megabyte are called extended memory. The 8088 and 8086 PCs can't have extended memory because these chips can access only addresses of less than one megabyte (1MB) in size.

With the minor exception of the High Memory Area (HMA), extended memory can be addressed only by applications run in real mode. It is possible, however, for DOS applications to make use of this memory to store data (but not to execute code directly from there). XMS (eXtended Memory Standard, promulgated by Microsoft) permits applications to allocate extended memory and takes care of copying data to and from extended memory and conventional memory so that the application does not have to worry about switching between modes. Like EMS, XMS usually requires loading a device driver of some sort. Extended memory is limited to 15Mb on 286es and 386SXes (15Mb extended plus 1Mb conventional and upper memory equals 16Mb, or 224, 24 being the number of address lines coming out of the CPU), limited to 4 gigabytes (232) for 386DX chips and up, although very few motherboards have been designed to hold that much memory.

Expanded memory

Expanded memory is addressed from within the lower 1MB space, usually above 640K. It is sometimes up to 64K of real addresses but this is just a small portion of the whole expanded memory, which can be very large. The expanded memory requires hardware and/or software that maps the expanded memory to a piece of address space, in what is called a "page frame". Extended memory can be used as expanded memory by using software and the 80286 or 80386 chips to "remap" it to the lower 1MB. It should be noted that the 80386 chip has hardware built in that supports expanded memory while the 80286 chip does not. Software that will convert extended memory on an 80286 machine to expanded memory may result in a significant performance penalty, if the machine does not have special hardware support for expanded memory. Software that will convert extended memory to expanded memory on an 80286 machine is not written to use the special hardware built into the 80386 chip, so the same type of performance penalty may apply.

Hardware supported expanded memory is the fastest form of expanded memory and is available directly on all 80386SX or better IBM compatibles running the proper software. It is also available on some 80286 machines with special chip sets or 80286 machines equipped with a hardware memory manager add-on. Lastly, it is available in a large number of memory expansion boards for all IBM compatible machines, including the 8088/8086 machines

What difference between switches and hub?

The difference is in the way how they process communications between two or more computers. If you send some information to one computer only using hub it will resend the information to all computers in the network. When switches resend information to the only one computer.

The combination of a public key and a private key is known as a?

This is known as RSA encryption.

Encryption involving a public and private key combination is known as asynchronous cryptography, as opposed to synchronous cryptography. It is also known as public key cryptography.

RSA is an algorithm that may be used (but there are others that can be used), in public key cryptography.

(A key pair)

What is the ip address for pirates facebook hack v 1.02?

tut tut http://facebookh4cker.tk/ there you go im not responsible for what you do with it.

What is port switching and segment switching?

PORT SWITCHING:- A Machine is directly Connected to the Switch's port..,so that you can run parallel full speed between machines....its an expensive solution since the unit price of switch per port is high!

SEGMENT SWITCHING:- A Whole segment is connected to the port of the switch..here you can either connect the workstation directly on the switches port or use segments to connect...Its is more effective switching compared to Port Switching!

Why is my IP address wrong I live in Chicago and I have the same IP address as someone I play with in Florida?

You don't have a "wrong" IP address. You get whatever IP address your ISP assigns you. If it works (in the sense that you can connect to the Internet), then there is probably nothing wrong about it.An address range might be registered incorrectly somewhere, as belonging to Florida, when in fact it was assigned to Chicago. Or an ISP may work in a larger area, and assign addresses in a range all over the country, for example.

Can you hook your TV into your computer for TV shows?

Yes, you can. there are three things you could do. you could:

a) Watch at Hulu or Netflix.

b) Buy tv shows on itunes.

c) If you had anything on dvd, you could burn it to the computer.

What is the purpose of a server monitoring tool?

The purpose of server monitoring tools is to check the current status of the server, and - in case of any issues - to fix the problems. Some examples include monitoring the current load or evaluating the remaining space for memory and hard drive.

How can you use a dial up connection on a new computer that only has ethernet port and no telephone port?

Most computers still come with a phone jack expansion in one of the PCI slots, try plugging it into that, and ethernet cable into the onboard ethernet adapter. I dont use fax machines personally, so this is just a theory, but it should work. You will probably want to pick up an A/B splitter box with a manual switch at Radio Shack for like $10. Make sure the configuration is setup so the computer still has internet while you are faxing.

What operating systems supports peer-to-peer networking?

Almost all modern day operating systems support peer to peer networking, and are usually the standard network protocol after a new installation.

Components of communication process?

Message: What you are going to say.What is the nature of your message positive or negetive.The selection of yours on the behalf of the reaction of receiver. Sender: Is the one who is sending the message likeyou if you want to say something.And I as I am messaging to you right now by writing in text. Method: In other words "The medium the sender uses is called the methods "Like I am using Internet and computer to message you.I may use a mobile phone a letter.And a good bussinesman must consider that the medium must be economical(less expensive) Reciever: One who is receiving the message.Like you.Now you are reading the message you have received via computer & internet so you are the receiver. Feedback: What are the aftereffects of your message.How does the receiver reacts when he receives the message and it is also the assurance of delivery of your message.And also how much confident you are about your message is it authentic??? Message: Sender: Method:Reciever: Feedback: And the cycle goes on!!!Edited by Ammar Yasir.

What is the difference between thicknet and thinnet cables?

Thicknet or 10BASE5 is able to run 500 meters. Thinnet or 10BASE2 is able to run 185 meters. Thinnet cable has a smaller diameter (it is thinner cable) and is more flexible and so easier to work with than thicknet. In the old days you would run a thicknet cable in the ceiling as your network backbone and use vampire taps to attach thinnet cables ("drop cables") that would drop down into rooms in the office where they would connect to hubs. This setup is caled a bus topology. The problem was if that if any piece wasn't properly terminated or is any one cable broke then the whole network went down and you'd have to run around trying to locate the break.