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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

Can you use your laptop as a PC network adapter?

I set up my obsolete laptop as a temporary wifi hotspot. If that is what you are asking, then yes.

What is aarpanet?

The ARPANET (Advanced Research Projects Agency Network) developed by ARPA of the United States Department of Defense during the Cold War, was the world's first operational packet switching network, and the predecessor of the global Internet.

Short note on fiber distributed data interface?

FDDI is a broad topic but if we want to describe in short then :

FDDI is a token ring network in which fiber optics cable is used as channel. there are three condition to design such a network-

1) there is a pair of fiber channel should passes to all the stations i.e. each host should have a pair of fiber optics cable(but should connected to only from one)

2)both channel should use same token

3)routing direction of both channel should be different.

the advantage of above three condition that if channel break down somewhere then we need to just short both channel and it will act as a single token ring channel.

What is the default ip for a firewall?

Whatever you want it to be. It doesn't matter, as long as it's in the same subnet.

What is site and subnet?

A 'site' is an area of organization in Microsoft's Active Directory organization. It is used to keep links (such as WAN links) together. A site is a physical organization (as opposed to a logical organization such as an OU or domain) and is specified by a subnet.

My PC is trying to access the Internet using the wired connection when I have wireless Internet so it is not working. How do you switch from using wired Internet to wireless?

A little more details would be nice. Who is your Internet Provider?

Generally these options are done through the Modem Settings screen which is usually accessed by accessing a certain website that shows your Internet and Modem Configurations and Settings.

If you dont know this or are unsure id suggest contacting your ISP (Internet Service Provider) and asking them for assistance

What are the disadvantages of integrated service digital network?

  • An external power supply is required. The telco's don't supply power for ISDN lines. If the power fails, the phones won't work.
  • Special digital phones are required or a Terminal Adapter to talk to the existing POTS devices.
  • It is very expensive to upgrade a central office switch ($500,000+) to ISDN
  • If the ISDN fails - the phone fails.

Example of a TCP IP address and netmask?

It is called "IP address". A typical example, using private addresses, is:

IP address: 10.0.0.5
Subnet mask: 255.255.255.0
Default gateway: 10.0.0.1

IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.

It is called "IP address". A typical example, using private addresses, is:

IP address: 10.0.0.5
Subnet mask: 255.255.255.0
Default gateway: 10.0.0.1

IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.

It is called "IP address". A typical example, using private addresses, is:

IP address: 10.0.0.5
Subnet mask: 255.255.255.0
Default gateway: 10.0.0.1

IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.

It is called "IP address". A typical example, using private addresses, is:

IP address: 10.0.0.5
Subnet mask: 255.255.255.0
Default gateway: 10.0.0.1

IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.

In 7 layers of OSI MODEL which layer connection and termination occurs?

physical layer

Data Link Layer

Network Layer

Transport layer

session layer

Presentation layer

Application layer

Which network design process identifies where to place access points?

A site survey is the network design process that identifies where to place access points.

Do routers have ip address?

Yes; to function properly (with the IP protocol), each router interface (or port) must have its own IP address. Also note that each port is in a different network.

Companies that have a class A IP address license?

A company with a class A address was either one of the very earliest adopters of the network technology or was part of the original network research. Of course, networks that required many clients would be part of that group as well.

Some universities have a class A, and companies such as IBM, and of course the government (which isn't really a company). Some ISPs may have a class A, as well as providers of backbone Internet technology, such as the DNS root level servers.

What is a moderm?

The moderm is a motherboard on a Mac like a pentel or amd modermboard

Why does the switch between Host and the router not require configuration with an IP address to forward packets?

If a switch is connected to a router then the MAC address of the router is known to the switch through that port.

A host takes advantage of this by using the default gateway address (the address of the router) which the switch "knows" by its lookup table. Therefore, the switch can learn the address automatically and no configuration is necessary.

What are the two possible causes of occlusion?

The two routers are connected on a multiaccess network.

The hello and dead intervals are different on the two routers.

They have different OSPF router IDs.

They have different process IDs.

What are reasons to change the Mac address?

There is no reason to change a MaC address, only possible answer is if you have commited a criminal offence in IT, such a hacking and want to change your MaC address.

Please feel free to correct me, IT is such a large field and can change everyday

What IP addresses do not expire?

169.139.16.2, 76.110.65.48, 98.244.111.0, 433.2.14.2, 56.436.215.22, 98.249.154.244, and more.

How does one set up a STFP server?

One needs to first install the Serve-U FTP. By following the steps, one will complete the setup and create a user login. The next step is to grant rights to any drive(s) one owns.

Why spam goes in spam but not in inbox?

Email systems know that users do not want to receive spam. Spam can be dangerous, with viral links, or just annoying, which wastes your time. This is why email systems send emails from suspect networks or with unknown content to a separate, spam folder.

If ip address is registered in police log then what will happen?

I can't figure out what you're looking for here. I don't know what a "police log" would be. And I don't believe that IP addresses are "registered" there if such a thing does exist.

If you use your computer for illegal activities, it's true that your IP address could be discovered (usually by a court order to the Internet Service Provider--ISP--who manages that address) and then that information could become part of a criminal investigation.

However, there are far too many addresses that could be traced for even a very large a police department to handle. That could only be done with a huge budget on a federal level and I doubt they have the time, disk space, or manpower to track and log every single communication that occurs over the Internet...