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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 utility might you use to find out whether your ISP's router is especially slow on a particular afternoon?

netstat--A TCP/IP troubleshooting utility that displays stats and the state of the current TCP/IP connections.

What is correct On a server or in a server?

No. It isn't. Haven't you swum in the other pool yet? Answer: Although I don't like to disagree, and it's certainly true that in traditional written English we should say 'haven't you swum..', people do use 'you haven't swum..' with a rising intonation in spoken English to express surprise. The questioner may be asking about the declarative sentence 'You haven't swum in the other pool yet.' The question mark relates to the inquiry about grammar, and not necessarily to the function of the construct. As a declarative sentence, it is correct.

How many devices can connect to a switch?

The number of devices you can link to a router will depend on the specific router,typically 4 devices can be connected.

Why Computer networks were developed?

Networks were developed as a communication method between computers at remote sites

What does .me stand for in a URL?

Just as Tuvalu allowed people to use their .tv domain

to represent television, then the .me domain (a ccTLD of Montenegro) in 2008 opened its doors to everyone looking for a domain name that allowed them to express themselves.

Give you example of web server?

IBM HTTP Sever Apcache Tomcat server IIS(Internet Information server from MicroSoft) Sun Java Server from SUN Microsystems SunOne Iplanet from SUN Microsystems

How is SOS online backup service?

Data security is becoming more and more important. If you don't want to lose important documents in a system crash, vacation photos from the past few years, or your painstakingly created music collection, you can either make local backups or use convenient online services. A data backup on the Internet has several advantages:

  • You can access your data from anywhere in the world, which is especially useful for using mobile devices.
  • The service makes it easy for you to set up regular backups.
  • Your files are securely stored in a professional data center, in most cases the latter is protected against theft, fire or other sources of danger.

If in addition you have all your data in the cloud, you can be much more relaxed about the threat of ransomware (ransomware): your data is indeed stored securely in another place.

In recent years, more and more online backup service providers have appeared in the market. So that you know which of these providers is the right one for you, we show you several of them while highlighting the pros and cons of the offers and compare the different services.

What are the computer hardwares used in computer networks?

NIC (Network Interface Cards), cables, routers, switches, hubs. Optional stuff can include storage area network (SAN), network attached storage (NAS), firewalls, and IDS (intrusion detection systems).

Where is computer history stored?

Internet history is stored in a hidden directory on the computer. It is stored at the following path C:\Documents and Settings\YOURUSERNAME\Local Settings\History.

What are advantages and disadvantages of wireless security?

The initial setup of a wireless connection infrastructure that implements security is not complicated as that of wired connections. The disadvantage of wireless security is that most of the encryption methods are common and have weaknesses.

How do you implement ip spoofing?

Ip spoofing is done by modifying the source address of a ip packet from where it is initiated and spoofing another ip address of trusted host and sent to the destination selected as a victim.

There are many application program available in the website through which we can spoof an ip address.

Why do you have 5 Classes of IP Address?

We have a total of five classes of IP addresses (A,B,C,D,E). Class A, B, and C are used on local and wide area networks. Class D is used for multicasting purposes. Class E is experiential and is not in use today.

Class A range starts from 0.0.0.0 --- 127.255.255.255

Class B range starts from 128.0.0.0 --- 191.255.255.255

Class C range starts from 192.0.0.0 --- 223.255.255.255

Class D range starts from 224.0.0.0 --- 239.255.255.255

Class E range starts from 240.0.0.0 --- 255.255.255.255

What is the purpose of using the PING utility?

It is used to verify end to end connectivity. Also helps to verify that the network is configured correctly, if you can get the reply, sometimes a reply may not come even if the if packets can reach the other end. That can be confirmed with a trace route. If the other end is reachable you get a reply, if it is out of reach you get a destination host unreachable, and if you can reach it but cannot get a reply you get a timeout.

How do you get ip address from instagram?

Open a command window (in Windows, press Windows-R (run), type "cmd", and press ENTER).Then, you can type the command:

ping instagram.com

The command output will show (among other things) the corresponding IP address.

That's just one way to do it; a command such as nslookup can provide multiple IP addresses.

NOTES:

* The end-user normally doesn't need the IP address; just the domain name (in this example, instagram.com).

* Large companies, such as Instagram, are likely to have MANY servers, each with its own IP address.

* The IP addresses may change over time.

What type of IP address is assigned for the current connection only?

When you are opening ports to allow incoming connections to your computer, your computer must be assigned a static internal IP address, to ensure that the incoming connections always go to the correct computer.

How do you network three computers without a hub?

One Answer:

It is possible to connect two computers without using a hub by using a switch instead. A switch is better than a hub because it creates a collision domain (CD) and stops them from happening when two devices try and send frames at the same time. Rather than buying a cross-over cable to connect two computers together, you can use two straight-through cables (your average, everyday network cable) and connect them to a switch. This also allows for growth where you can add more computers to the switch if the network grows.

Another Answer:

With Ethernet, you can use a crossover cable to connect two computers without using a hub, switch, or existing network. Crossover cables are Ethernet cables that have the send and receive wires (pins) switched along the length of the cable. The pins that send information from one computer are connected to the pins that receive information for the second computer. You can use a regular cable if they are modern computers.

Why is a fiber optic cable connection faster than a twisted pair cable connection?

In the twisted pair cable connection, the communication occurs over wires which offer resistance that make the connection slow. However, the fiber optic connection uses cylindrical glass that does not have any resistance making it the fastest connection channel.