Change your network name service set identifier (SSID) Show
Disable SSID broadcast Change the default password on your router Turn on security protocols-Wired Equivalent Privacy (WEP) or Wi-Fi Protected Access (WPA). Both use encryption (a method of translating your data into code) to protect data in your wireless transmissions. WPA is a much stronger protocol than WEP Create a passphrase- to create a security encryption key (passphrase). When you attempt to connect a node to a security-enabled network for the first time, you're required to enter the security key. The security key or passphrase is the code that computers on your network need to decrypt (decode) data transmissions from your network. Implement media access control. Each network adapter on your network has a unique number (like a serial number) assigned to it by the manufacturer. This is called a media access control (MAC) address, and it is a number printed right on the network adapter. Many routers allow you to restrict access to the network to only certain MAC addresses. Limit your signal range.- Apply firmware upgrades. Your router has read-only memory that has software written to it. This software is known as firmware. As bugs are found in the firmware (which hackers might exploit), manufacturers issue patches, just as the makers of operating system software do. Periodically check the manufacturer's website and apply any necessary upgrades to your firmware. Updated: 07/06/2021 by A network is a collection of computers, servers, mainframes, network devices, peripherals, or other devices connected to allow data sharing. An example of a network is the Internet, which connects millions of people all over the world. To the right is an example image of a home network with multiple computers and other network devices all connected. Examples of network devices
Network topologies and types of networksThe term network topology describes the relationship of connected devices in terms of a geometric graph. Devices are represented as vertices, and their connections are represented as edges on the graph. It describes how many connections each device has, in what order, and what sort of hierarchy. Typical network configurations include bus topology, mesh topology, ring topology, star topology, tree topology, and hybrid topology. Most home networks are configured in a tree topology that connects to the Internet. Corporate networks often use tree topologies, but they also often incorporate star topologies and an Intranet. What is the difference between public and private networks?Often offered by nearby businesses and other publicly accessible areas, public networks are a convenient way to connect to the Internet.
Note All public networks are less secure than your home network. Even if the websites you visit use encryption, the URLs you visit can be eavesdropped. For this reason, you should not transmit private or sensitive information on a public Wi-Fi network if you can do it elsewhere. If a public network does not require a password, we strongly recommend you do not connect any of your devices to it. Private networks have security measures in place to prevent unwanted or unauthorized connections. Private networks are often used for home, business, school Wi-Fi networks, or mobile hotspots for security and to preserve bandwidth. Advantages of a networkThere are more advantages to a network than disadvantages. In fact, many companies today wouldn't exist without accessing some form of network. Below are the advantages of a network.
Disadvantages of a networkAlthough there are many advantages to a network (mentioned above), there are some disadvantages. Below are the disadvantages of a network.
What was the first computer network?One of the first computer networks to use packet switching, ARPANET, was developed in the mid-1960s and is the direct predecessor of the modern Internet. The first ARPANET message was sent on October 29, 1969. Internet, LAN, Network terms What is the minimum number of devices required to have a network?The correct answer is 2. A computer network is an interconnection among two or more computers or computing devices. Such interconnection allows computers to share data and resources with each other.
How many computers need to be connected together for it to be classed as a network?A computer network comprises two or more computers that are connected—either by cables (wired) or WiFi (wireless)—with the purpose of transmitting, exchanging, or sharing data and resources.
What are the 4 basic requirements of a network protocol?Networks are comprised of four basic elements: hardware, software, protocols and the connection medium. All data networks are comprised of these elements, and cannot function without them.
What are the 3 components of a network?The network infrastructure contains three categories of network components—devices, media, and services—as shown in Figure 1-6.
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