What is a worm in computer network?

Definition of networking in computer

A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers.

Often, it uses a computer network to spread itself, relying on security failures on the target computer to access it.

Unlike a computer virus, it does not need to attach itself to an existing program.

,For a virus, it need an active host, but for worm it only require active network connection.

Once a worm has made its way onto your system, usually via a network connection or as a downloaded file, it can then make multiple copies of itself and spread via the network or internet connection infecting any inadequately-protected computers and servers on the network.

Because each subsequent copy of a network worm can also self-replicate, infections can spread very rapidly via the internet and computer networks.

,Most known computer worms are spread in one of the following ways: ,1.

Files sent as email attachments,2.

Via a link to a web or FTP resource,3.

Via a link sent in an ICQ or IRC message,4.

Via P2P (peer-to-peer) file sharing networks,5.

Some worms are spread as network packets.

These directly penetrate the computer memory, and the worm code is then activated.

,Computer worms can exploit network configuration errors (for example, to copy themselves onto a fully accessible disk) or exploit loopholes in operating system and application security.

Many worms will use more than one method in order to spread copies via networks.

Types of networking


Personal Area Network (PAN)The smallest and most basic type of network, a PAN is made up of a wireless modem, a computer or two, phones, printers, tablets, etc.

, and revolves around one person in one building.

These types of networks are typically found in small offices or residences, and are managed by one person or organization from a single device.


Local Area Network (LAN)Weu2019re confident that youu2019ve heard of these types of networks before u2013 LANs are the most frequently discussed networks, one of the most common, one of the most original and one of the simplest types of networks.

LANs connect groups of computers and low-voltage devices together across short distances (within a building or between a group of two or three buildings in close proximity to each other) to share information and resources.

Enterprises typically manage and maintain LANs.


Wireless Local Area Network (WLAN)Functioning like a LAN, WLANs make use of wireless network technologies, such as WiFi.

Typically seen in the same types of applications as LANs, these types of networks donu2019t require that devices rely on physical cables to connect to the network.


Campus Area Network (CAN)Larger than LANs, but smaller than metropolitan area networks (MANs, explained below), these types of networks are typically seen in universities, large K-12 school districts or small businesses.

They can be spread across several buildings that are fairly close to each other so users can share resources.


Metropolitan Area Network (MAN)These types of networks are larger than LANs but smaller than WANs u2013 and incorporate elements from both types of networks.

MANs span an entire geographic area (typically a town or city, but sometimes a campus).

Ownership and maintenance is handled by either a single person or company (a local council, a large company, etc.



Wide Area Network (WAN)Slightly more complex than a LAN, a WAN connects computers together across longer physical distances.

This allows computers and low-voltage devices to be remotely connected to each other over one large network to communicate even when theyu2019re miles apart.

,The Internet is the most basic example of a WAN, connecting all computers together around the world.

Because of a WANu2019s vast reach, it is typically owned and maintained by multiple administrators or the public.


Storage-Area Network (SAN)As a dedicated high-speed network that connects shared pools of storage devices to several servers, these types of networks donu2019t rely on a LAN or WAN.

Instead, they move storage resources away from the network and place them into their own high-performance network.

SANs can be accessed in the same fashion as a drive attached to a server.

Types of storage-area networks include converged, virtual and unified SANs.


System-Area Network (also known as SAN)This term is fairly new within the past two decades.

It is used to explain a relatively local network that is designed to provide high-speed connection in server-to-server applications (cluster environments), storage area networks (called u201cSANsu201d as well) and processor-to-processor applications.

The computers connected on a SAN operate as a single system at very high speeds.


Passive Optical Local Area Network (POLAN)As an alternative to traditional switch-based Ethernet LANs, POLAN technology can be integrated into structured cabling to overcome concerns about supporting traditional Ethernet protocols and network applications such as PoE (Power over Ethernet).

A point-to-multipoint LAN architecture, POLAN uses optical splitters to split an optical signal from one strand of singlemode optical fiber into multiple signals to serve users and devices.


Enterprise Private Network (EPN)These types of networks are built and owned by businesses that want to securely connect its various locations to share computer resources.


Virtual Private Network (VPN)By extending a private network across the Internet, a VPN lets its users send and receive data as if their devices were connected to the private network u2013 even if theyu2019re not.

Through a virtual point-to-point connection, users can access a private network remotely.

,I hope this solves your Question!

Networking with people

Thanks for A2A, Ill try to offer a different spin on your usual advice.

Warning: its loaded with cheese! ,Networking is like picking up a girl in a bar.

(I warned you),Its terrifying at first but becomes easy once you have made a few connections and the more quality people you connect with, the more people want to connect with you.

,Nuts and bolts:,Dont go in cold, without reason.

You werent invited and neither was the awkward pressure you brought with you.

,Dont be Mr tight T, greasy hair and try to close in the first 5 minutes.

No one with class would.

In all instances, your agenda is always assumed, you both know it, so let them warm up first.

High quality networks are the same.

Saying Hi, Id like to add you to my network just isnt good enough.

Youll hook the occasional nobodies but strike out with all the quality contacts.

,To pick up, you offer her a drink, a good laugh, an attentive ear and maybe a few compliments.

All before getting anything back in return.

In networking you do the same.

The best way to touch someone is through a selfless act of generosity.

You give give give without expectation.

Whether its advice, thanks, assistance or simply a compliment.

Its not give and take.

Its pay it forward.

With the right network, that forward will eventually come to you.

,Be authentic.

When you do throw out a compliment.

Make sure its not generic and superficial.

You have really beautiful eyes translates in the corporate world as I really like your business strategy (blog, book, website, product, company.




Its ordinary and it makes you seem ordinary.

One night I was out with this absolute fox.

Just gorgeous, sweet and genuine.

But this little parcel of beauty had this ridiculous donkey laugh.

Im not kidding, it was horrendous.




but it was absolutely endearing too.

So I said it is just ridiculous how cute that laugh is she gave me a big hug and kiss on the cheek.

A couple years later she gave me my first son.

Moral of the story - authenticity works.

Dont just shotgun out I love your work compliments.

If you read something they wrote on Quora, tell them exactly what it was they said ,why it resonated so well with you and how grateful you are.

They are far more likely to respond.

,Be honest.

Who you are is the strongest being you can be.

People always seem to overlook this very simple yet under-valued practice.

People who try to come across as anything they arent always seem weak.

Girls and networkers alike pickup on this.

Your off your game when theres deceit.

You want to be strong and confident and you can only be that when you are being honest.

Job titles, work history, skill sets, who you are.





You dont want to set expectations beyond your current self.

Its far better to be inexperienced than incompetent.

,Be seen.

This rotates back to going in cold.

It is infinitely more comfortable to approach a girl once you have received the glance.

She is now aware you are in the bar and wont be completely unresponsive when you approach.

The yea I noticed you too is common in the networking world as well.

It breaks the ice and lubricates the introduction.

So put yourself out there.

LinkedIn, Quora, Website, blogs, TED.




Go to events, conferences, everything.

Get involved in your fields.

Make comments, communicate your opinions, compliment, suggest and question.

Dont just be a spectator, be a participant.

Im relatively new to Quora but I notice that some of the people with blogs work very hard to interact consistently and its great.

,Be cool not desperate.

Sometimes it takes a little persistence but exercise without desperation.

When you offer to buy a girl a drink and she says no.

Politely defuse any awkwardness she might feel by accepting that and tell her it was nice to meet her.

Then if you still want a shot, go to the bartender, ask him what her favourite drink was and request a pad and pen.

Make sure you can be seen when she receives her favourite drink out of the blue with a hand written note from you that says hope you have nice night anyway - I did this once and after a little casual romance, Claire is now one of my best mates.

If you think your busy as an early stage entrepreneur, wait to see how busy you get once your successful.

Business men are extremely busy so may not have much time.

So leave a lasting impression and make sure they know how to get in touch if they decide to.

,Its all really boiling down to being genuine and courteous and it works.

Give without expectation, get busy, stay relevant and active.

Its hard work and you wont get instant results all the time.

But, you will have their respect and their attention.

Repeat and after some time you will have a large network of people that actually respond to you.

,Hope that helps.

What is networking in entrepreneurship

Itu2019s not uncommon for network marketers to leave the company within only months of starting out, since actual profit potential is relatively low, and the work involved isnu2019t always as straight-forward as it initially seems.

,Certain sources will tell you that all network/multilevel marketing companies are pyramid schemes - which isnu2019t exactly unrealistic from what I have seen, although itu2019s not entirely accurate.

,There is no need to feel embarrassed about leaving network marketing - you may be able to use income from your network marketing business to help fund your entrepreneurial venture.

Maybe you have seen a niche market that you know you can satisfy? Or an industry sector ripe for disruption? Or maybe a whole new industry that the world sorely needs?,First thing you need to do to succeed is to stop trying to avoid embarrassment.

To do that, stop being so easily embarrassed.

Everybody fails sometimes.

Everybody does something that doesnu2019t work out.

Thatu2019s a part of life.

Look at it this way:,Most people get embarrassed when their credit card declines.

It is up to you how you respond when this happens.

For years I did too.

But why? I didnu2019t really know.

,The reality is that I had failed to maintain sufficient funds to make my payment.

A relatively easy thing to control.

It was in my control, and I failed at controlling it.

Thatu2019s what I was embarrassed about.

,The first thing I did to stop getting embarrassed about it was to accept that I donu2019t have to control everything.

Some things are beyond your control, such as the price of goods or the condition of another personu2019s car.

Some things are within your control, such as your bank balance.

Not earning enough money? Find a way to leverage your skills or assets to earn more! Earning enough, but spending too much? Set yourself a budget and stick to it! Put some money into a savings account! Donu2019t take it out! Stop spending on things that donu2019t matter!,The second thing I did was to accept failure as a fact of life.

The old adage u201cyou win some, you lose someu201d comes to mind - and itu2019s very true.

When we do something, our intention is usually to succeed in doing it.

But the reality is that the odds arenu2019t always in our favour.

Sometimes we flop out and fail.

But failure is a fact of life, and a great teacher.

Donu2019t get embarrassed about it.

,The last thing I did to avoid getting embarrassed about my credit card declining was to ensure that I could remedy the problem on the spot.

If my credit card declines, I open the banking app on my phone and transfer the funds from another account into the account connected to my credit card.

This is both a solution to the problem, and an incentive to solve it.

,You can build a certain amount of wealth by working a regular job.

You can even enjoy a reasonably comfortable lifestyle from it.

But you cannot decide your work hours, you cannot take control of your own success, and you definitely cannot build a good supply of wealth.

Apart from that, you cannot easily find lasting satisfaction in doing so.

,Now, to be sure, there are some people who are satisfied in their regular jobs.

But you have realised that your true passion lies in entrepreneurship.

Great! Now get out there and do it! Forget what everyone else thinks.

Another fact of life is that people tend to forget you very quickly.

If you make an ass of yourself today, odds are next week everybody will have moved on.

Why let your fear of their mockery keep you from your dreams?,As Kelly Clarkson said in her song Breakaway: Take a risk, take a chance, make a change, and break away!,Be yourself, and pay attention only to those who provide beneficial support.

Donu2019t seek approval from other people, because 99% of the time, you wonu2019t get it.

People are resistant to change, and they are generally averse to risk.

People who are willing to take a risk donu2019t find popularity or approval, and seldom find support, until long after they have reaped the astronomically huge benefits of that risk-taking.

,,The point Iu2019m trying to make here, is that if youu2019re trying to avoid embarrassment, the best thing to do is to keep doing what youu2019re doing.

That is the status quo, and even if the entire industry collapses, you will have the commiseration of your many peers who also lost out in the collapse.

,If you start a ground-breaking new startup, you are often stepping out on your own.

You will need to build a whole new network from the ground up.

You will need to develop your entire business model.

You will need to adapt it to suit.

You canu2019t rely on established companies to support you in your venture.

There is no guarantee of success - only probabilities and possibilities.

No pain, no gain as the saying goes.

The higher the risk of failure, the higher the profit potential in the event that you succeed.

There is nothing worthwhile that guarantees you will avoid embarrassment.

,So stop trying to avoid embarrassment! Embarrassment is inevitable.

Your efforts to avoid it could bring it upon you.

Just step out, and follow your dreams.

Your network marketing job could be a great way to fund your new venture, so hang onto it for now.

But get to work on building your own company.

Donu2019t hang around waiting for the approval of others.

Networking Definition business

Hi,,Thanks for A2A.

,Agree With User-12579301762177372012What is Network Marketing ?A business model in which a distributor network is needed to build the business.

Usually such businesses we call them Network marketing also known as multilevel marketing.

In multilevel marketing payouts occur at more than one level.

Network marketing is a type of business opportunity that is very popular with people looking for part-time, flexible businesses.

Some of the best-known companies in America, including Avon, Mary Kay Cosmetics and Tupperware, fall under the network marketing umbrella.

,Network marketing programs feature a low upfront investment usually only a few hundred dollars for the purchase of a product sample kit and the opportunity to sell a product line directly to friend, family and other personal contacts.

Most network marketing programs also ask participants to recruit other sales representatives.

,The recruits constitute a reps down line, and their sales generate income for those above them in the program.

,Things can get sticky when a network marketing network compensates participants primarily for recruiting others rather than for selling the companys products or services.

A network marketing system in which most of the revenue comes from recruitment may be considered an illegal pyramid scheme.

Pyramids are illegal and are based on taking advantage of people.

For a person to actually make money in a,pyramid scheme, someone else has to lose money.

But in network marketing, each person can multiply his or her efforts, skills and talents by helping others be successful.

Network marketing has proved itself as part of the new economy and a preferred way to do business here and around the world.

,Since network marketing programs are usually exempt from business opportunity regulation and arent defined as franchises under state and federal franchise laws, youll need to do your own investigation before investing any money.

,Thank you I Hope This Will Helps Youu2026u2026.


Types of computer networking

Here are some of the network types that you might come across:,Local Area Networks (LAN): A local area network or LAN is a network that connects computers within a limited area.

This might be in a school, an office or even a home.

,Personal Area Networks (PAN)u200d :A personal area network is a network that is based on an individuals workspace.

The individuals device is the center of the network, with other devices connected to it.

There are also wireless personal area networks.

,Home Area Networks (HAN): A home area network connects devices within a home environment.

It might include personal computers, tablets, smartphones, printers, TVs and other devices.

,Wide Area Networks (WAN):A wide area network is a network that covers a larger geographical area, usually with a radius of more than a kilometer.

,Campus Networks:A campus network is a LAN or set of connected LANs which is used by a government agency, university, corporation or similar organization and is typically a network across a set of buildings that are close together.

,Metropolitan Area Networks (MAN):nu200dMetropolitan area networks are networks that stretch across a region the size of a metropolitan area.

A MAN is a series of connected LANs in a city, which might also connect to a WAN.

,Enterprise Private Networks:nu200dAn enterprise private network is used by a company to connect its various sites so that the different locations can share resources.

,Internetworks:nu200dInternetworks connect different networks together to build a larger network.

Internetworking is often used to describe building a large, global network.

,Backbone Networks (BBN):nu200dA backbone is a part of a network that connects different pieces and provides a path for information to be exchanged.

,Global Area Networks (GAN):nu200dA global area network is a worldwide network that connects networks all over the globe, such as the internet.

Examples of networking in everyday life

The negative impact is dumbing down of people due to following of the so called social media influencers,Look at these two so called social media influencers,In the left this lady is apparently reading A thousand splendid suns and smiling but there is nothing to smile in the book which is a tragedy about the loss of dreams and hopes of a girl to islamic patriarchy and fundamentalism.

,A Thousand Splendid Suns - Wikipediaon the right the lady is reading Anne Frank The diary of a young girl which is another tragedy written by a teen age Anne in Nazi occupied Netherlands as she fears for her and her familyu2019s lives, is eventually captured and dies at 15 in a concentration camp.

Local area network

LAN stands for Local Area Network.

The purpose of LAN is to interconnect more than one computer to form a network in the same building or premises to communicate and transfer data.