New research has revealed that even if JavaScript has been disabled or restricted, some of the now popular attack techniques — such as Browser Intranet Hacking, Port Scanning, and History Stealing—can still be perpetrated.

The internet is millions of computers connect by thousands of networks while the world wide web is billions of pages that can be accessed through the internet. A collection of related web pages.

The Internet is a wide network of computers that is available to all whereas Intranet is a network of computers designed for a certain group of users. Internet is a public network and Intranet is a private network. Internet contains various source of information while Intranet only contains group-specific information.

Intranet and LAN is almost one and the same thing. Almost every LAN network is an Intranet. LAN is a local network whereas Intranet doesn’t have to be local, it can be a network within a company with 3 different offices which are all inter-linked with a WAN (Wide Area Network).

LAN is a group of network devices which allow the communication between connected devices. The private ownership has the control over the local area network rather than public….Wide Area Network (WAN):

A WAN covers a large geographical area. Most WANs are made from several LANs connected together. The internet is a WAN. LANs are often connected to WANs, for example a school network could be connected to the internet.

Key Difference: LAN stands for Local area network. It is a computer network that interconnects computers within a small area like in an office building or a school. Intranet is a private internet network that supports all common protocols like TCP/IP, HTTP and other internet standard protocols.

A local area network (LAN) is a collection of devices connected together in one physical location, such as a building, office, or home.

An intranet is a private network, operated by a large company or other organisation, which uses internet technologies, but is insulated from the global internet. An extranet is an intranet that is accessible to some people from outside the company, or possibly shared by more than one organisation.

• Personal Area Network (PAN)
• Local Area Network (LAN)
• Wireless Local Area Network (WLAN)
• Campus Area Network (CAN)
• Metropolitan Area Network (MAN)
• Wide Area Network (WAN)
• Storage-Area Network (SAN)
• System-Area Network (also known as SAN)

Types of access networks:

• Ethernet – It is the most commonly installed wired LAN technology and it provides services on the Physical and Data Link Layer of OSI reference model.
• DSL –
• FTTH –
• Wireless LANs –
• 3G and LTE –

Files can easily be shared between users. Network users can communicate by email and instant messenger . Security is good – users cannot see other users’ files unlike on stand-alone machines. Data is easy to backup as all the data is stored on the file server .

Top 10 Business Networking Pros & Cons – Summary List

Need for Computer Networking. Computer networks help users on the network to share the resources and in communication. File sharing: Networking of computers helps the network users to share data files. Hardware sharing: Users can share devices such as printers, scanners, CD-ROM drives, hard drives etc.

What are the 5 reasons to network security problems?

• Problem #1: Unknown Assets on the Network.
• Problem #2: Abuse of User Account Privileges.
• Problem #3: Unpatched Security Vulnerabilities.
• Problem #4: A Lack of Defense in Depth.
• Problem #5: Not Enough IT Security Management.

Need for network: As network is the interconnection of nodes, so by using a network we can share our files with others without reaching to the person physically. Using network, we can communicate with other persons face to face that is called video call or video conference.

IP addresses are as much important as a person’s unique identification card or number. It assures security for your own benefits and promotes your creativity towards the field or fields you as a user are interested in.

An IP address serves two principal functions: it identifies the host, or more specifically its network interface, and it provides the location of the host in the network, and thus the capability of establishing a path to that host.