Computer Network Access Media

COMPUTER NETWORK ACCESS MEDIA 1. Explain the difference between LAN and PAN A computer network means two or more computers that are connected to each other and used for various data. Computer networks are built using a combination of hardware and software. In creating a computer network, there are switches and routers that use protocols and algorithms to exchange information and carry data to the end point as desired. The purpose of creating a computer network is so that the information or data carried by the sender (transmitter) can reach the recipient (receiver) precisely and accurately. Computer networks allow users to communicate with each other easily. There are several types of computer networks, including: a. Local Area Network (LAN) LAN is a link between network devices over a short distance. For example, in a school building, office, or home. But sometimes one building can be filled with many LANs. LANs carry out operations in limited spaces and LANs are also owned, controlled and managed by one or even an organization. LAN uses various technologies in special connectivity, especially by Ethenet and also Token Ring. There are LANs that already use wireless technology, namely using Wi-Fi which is known as Wireless Local Area Network or WLAN. b. Metropolitan Area Network (MAN) MAN is a computer network whose job is to connect 2 or more LAN networks in one city. MAN uses special devices and cables to connect LANs. c. Wide Area Network (WAN) WAN is often referred to as a group of LANs that are spread geographically. There is a network device known as a router which functions to connect the LAN to the WAN. In an IP network, there is a router that is used to store LAN addresses as well as WAN addresses. d. Person Area Network (PAN) Not much different from a LAN, a PAN is a network that covers smaller areas, for example a network in an office or home. In general, the type of network used is, for example, printers and the internet. e. Internet The internet is defined as the largest type of computer network ever created by humans. The internet can connect millions of computing devices including laptops, PCs, workstations, webcams, tablets, TVs, CCTV, smartphones. In order to connect between these devices, there is a lot of infrastructure and technology that must be used. Anyone can connect to the internet and the internet is considered an insecure network. f. Virtual Private Network (VPN) VPN is a solution for providing various connections to the internet more securely. For example, a company has 2 offices, one office is in Jakarta and the other is in Bandung. Each of these companies can use VPN to connect the 2 offices. The use of VPN is to create a secure path on the internet and can be used for data transmission. Based on the explanation above, it can be concluded that VPN is a solution for providing various connections on the internet more securely. For example, a company has 2 offices, one office is in Jakarta and the other is in Bandung. Each of these companies can use VPN to connect the 2 offices. The use of VPN is to create a secure path on the internet and can be used for data transmission. 2. Explain the internet and extranet networks Computer network A computer network means two or more computers that are connected to each other and used for various data. Computer networks are built using a combination of hardware and software. In creating a computer network, there are switches and routers that use protocols and algorithms to exchange information and carry data to the end point as desired. The purpose of creating a computer network is so that the information or data carried by the sender (transmitter) can reach the recipient (receiver) precisely and accurately. Computer networks allow users to communicate with each other easily. Each endpoint or also known as a host on a network has a unique identifier, often an IP address or Media Access Control address which is used to indicate the source and even destination of transmission. Endpoints can include servers, telephones, personal computers, and many types of hardware in a network. Computer networks are created using a combination of cable and wireless technology. Network devices always communicate via cable or even wireless transmission medium. For networks that use cables, you need optical fiber, copper cables, or coaxial cables. Meanwhile, if the wireless network path is included in a computer network that uses wireless data connections to connect to end points, in this case what is meant by end points are cellular radio, broadcast radio, satellite and microwave. Intranet, Extranet, and Internet Intranet is an internal company network built using internet technology. The architecture of the intranet is in the form of a web application and uses the TCP/IP protocol. Meanwhile, Extranet is a company intranet network that wants to expose its information to external networks. Meanwhile, the Internet (Interconnected Network) is a global communications system that connects computers and computer networks throughout the world. Based on the explanation above, it can be concluded that an Intranet is an internal company network built using internet technology. The architecture of the intranet is in the form of a web application and uses the TCP/IP protocol. Meanwhile, the Internet (Interconnected Network) is a global communications system that connects computers and computer networks throughout the world. 3. Explain the difference between UTP and STP cables A computer network means two or more computers that are connected to each other and used for various data. Computer networks are built using a combination of hardware and software. In creating a computer network, there are switches and routers that use protocols and algorithms to exchange information and carry data to the end point as desired. The purpose of creating a computer network is so that the information or data carried by the sender (transmitter) can reach the recipient (receiver) precisely and accurately. Computer networks allow users to communicate with each other easily. The similarity between UTP and STP cables is that UTP and STP cables have similarities in the type of cable, namely that they both consist of 4 pairs of cables consisting of white, orange, white, green, green, white, blue, blue and white, brown, brown. Meanwhile, the differences between UTP and STP cables are as follows. 1. UTP reduces crosstalk and noise when compared to parallel cabling arrangements but not to a great extent. Meanwhile, STP reduces crosstalk, noise and electromagnetic interference significantly. 2. UTP cables do not have additional insulators in the form of aluminum, while STP cables have additional insulators in the form of aluminum foil. 3. The cable that should be used to install a LAN network in the RT area or directly outside is to use an STP type LAN cable, because this type of cable is a cable that is resistant to external weather, this STP type LAN cable has an additional insulator membrane in the form of aluminum on the cable wrapper. Based on the explanation above, it can be concluded that The similarity between UTP and STP cables is that UTP and STP cables have similarities in the type of cable, namely that they both consist of 4 pairs of cables consisting of white, orange, white, green, green, white, blue, blue and white, brown, brown. Meanwhile, the differences between UTP and STP cables are as follows. • UTP reduces crosstalk and noise when compared to parallel cabling arrangements but not to a large extent. Meanwhile, STP reduces crosstalk, noise and electromagnetic interference significantly. • UTP cables do not have additional insulators in the form of aluminum, while STP cables have additional insulators in the form of aluminum foil. • The cable that should be used to install a LAN network in the RT area or directly outside is to use an STP type LAN cable, because this type of cable is a cable that is resistant to external weather, this STP type LAN cable has an additional insulator membrane in the form of aluminum on the cable wrapper. 4. Explain the meaning of fiber optic connection Computer network A computer network means two or more computers that are connected to each other and used for various data. Computer networks are built using a combination of hardware and software. In creating a computer network, there are switches and routers that use protocols and algorithms to exchange information and carry data to the end point as desired. The purpose of creating a computer network is so that the information or data carried by the sender (transmitter) can reach the recipient (receiver) precisely and accurately. Computer networks allow users to communicate with each other easily. Each endpoint or also known as a host on a network has a unique identifier, often an IP address or Media Access Control address which is used to indicate the source and even destination of transmission. Endpoints can include servers, telephones, personal computers, and many types of hardware in a network. Computer networks are created using a combination of cable and wireless technology. Network devices always communicate via cable or even wireless transmission medium. For networks that use cables, you need optical fiber, copper cables, or coaxial cables. Meanwhile, if the wireless network route is included in a computer network that uses wireless data connections to connect to end points, in this case what is meant by end points are cellular radio, broadcast radio, satellite and microwave. Question Discussion Fiber optic connections have very thin fibers made of glass that can transmit data and files via fiber optic networks. Where glass fiber is a medium that experiences low levels of reduction and barrier. Therefore, the connection is very effective for telecommunications and the data transmission speed is higher compared to other types of cables. Therefore, faber optical cables are usually used by telecommunications companies. Apart from that, we can also use fiber optic cables to access Speedy. 5. Explain the advantages of routers compared to other network devices Computer network A computer network means two or more computers that are connected to each other and used for various data. Computer networks are built using a combination of hardware and software. In creating a computer network, there are switches and routers that use protocols and algorithms to exchange information and carry data to the end point as desired. The purpose of creating a computer network is so that the information or data carried by the sender (transmitter) can reach the recipient (receiver) precisely and accurately. Computer networks allow users to communicate with each other easily. Each end point or also known as a host in the network has a unique identifier, often an IP address or Media Access Control address which is used to indicate the source and even the destination of the transmission. Endpoints can include servers, telephones, personal computers, and many types of hardware in a network. Computer networks are created using a combination of cable and wireless technology. Network devices always communicate via cable or even wireless transmission medium. For networks that use cables, you need optical fiber, copper cables, or coaxial cables. Meanwhile, if the wireless network path is included in a computer network that uses wireless data connections to connect to end points, in this case what is meant by end points are cellular radio, broadcast radio, satellite and microwave. Question Discussion The advantages of routers compared to other network devices: • Can divide the network optimally or well • Can prioritize divided networks • Can be applied or used in all types of network topologies (star topology, bus topology, etc.) • The configuration or setting method is easier than Bridge • Affordable prices