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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

What is the Baud rate for 1024QAM?

It is impossible to answer that question.

On the other hand if you assume this:

- Baud rate = symbol rate

- Bit rate = bits per second

The following formula is valid:

Baud rate = bit rate / 10

If 1024 QAM is used.

What is the difference between virtual logical and physical address spaces?

The concept of a logical address space is simply involved the process of mapping the Logical addresses to their Physical Addresses . Logical addresses are generated by the CPU; also referred to as virtual addresses.while Physical Address is the actual address of the data stored on the physical device and mapped by MMU.

What can verified by successfully pinging the reserved loop back address on a host?

The only thing that pinging the local loopback adapter on a host will prove is that the TCP/IP stack is installed and operating correctly. It will not diagnose a faulty NIC.

How do you a change a loop back ip address?

I don't think it is possible in DOS or windows, but you wouldn't want to change the localhost (loop back) address of 127.0.0.1 for it would cause a lot of problems with every part of your system.

Wifi password for iPhone PC suite 2.3.0.85?

The default Password that worked for me is: nd.com.cn Tested on iPhonePCSuite 2.3.1.86 _____________________________ Yes exactly. nd.com.cn is the one that worked for me too! The page (pandadaemon) where the wifi setting resides is in chinese. So I don't know if one can change that password or not!! My version is also 2.3.1.86

Do firewalls prevent pinging?

I think, Most of the time to play online games or open up new things it says to "Disable Your Firewall" Of course you disable it and the game works. Of Course, Say if you play online servers like the popular server "XBCConnect" Just an Example, But to open that Server you would need to disable your "Firewall" I think that can prevent Pinging depends on if your running your firewall and it's pinging try turning it off and see if it's pinging. But Sometimes you will just have to reset your router for better connection and less ping. To reset your router "Unplug the AC Adapter Cord" looks like a head phone jack cord or wire. But other times you might need to simpily Restart your computer. Make sure you know what your doing with your cords so you don't mess them up though. I hope this Answer helps you It was the best answer i could give. ------ Firewalls are highly configurable. Depending on the manufacturer, its default behavior may be to drop ICMP (ping) packets. There really is no standard rule on the subject. There are probably thousands of different types of firewalls. In general, though, if you are on the "inside" (protected network) of a firewall, your pings will not be prevented.

Examples of relational database and non relational database in real world?

A relational database is a database that groups data using common attributes found in the data set. The resulting "clumps" of organized data are much easier for people to understand. For example, a data set containing all the real estate transactions in a town can be grouped by the year the transaction occurred; or it can be grouped by the sale price of the transaction; or it can be grouped by the buyer's last name; and so on.

What class License do APIPA addresses use?

APIPA addresses are in the range 169.254.0.1 through 169.254.255.254.

These would be in the Class B address range.

How do you find a wpa key for a wireless network without it hooked up to my computer?

You can't. If you do not know it and there is no other computers connected to the same router, there is no way you can get the key without setting up a new one.

What is the difference between a zone and a domain?

A domain is a portion of the overall DNS namespace. A zone, however, can contain multiple contiguous domains.

How can you send a message to someone if you know their IP address can cmd do it?

Open up command prompt and type in "net send <Computer Name> <Message>"

w/o the < > " ofcourse :)

Altho the only way to do this is if. A. Both parties computers are connected through the same network and B. Both computers must have the messenger service turned on.

What is the difference between internet and cyberspace?

Internet Most people think of internet when they browse the WWW (World Wide Web). But internet is in origin a collection of several services concists of http, e-mail, usenet, chat, ftp, gopher and wais. Cyberspace Cyberspace is the notional realm in which electronic information exists or is exchanged