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A gateway is a network node used in telecommunications that connects two networks with different transmission protocols together. Gateways serve as an entry and exit point for a network as all data must pass through or communicate with the gateway prior to being routed. In most IP-based networks, the only traffic that does not go through at least one gateway is traffic flowing among nodes on the same local area network (LAN) segment. The term default gateway or network gateway may also be used to describe the same concept. The primary advantage of using a gateway in personal or enterprise scenarios is simplifying internet connectivity into one device. In the enterprise, a gateway node can also act as a proxy server and a firewall. Gateways can be purchased through popular technology retailers, such as Best Buy, or rented through an internet service provider. How gateways workAll networks have a boundary that limits communication to devices that are directly connected to it. Due to this, if a network wants to communicate with devices, nodes or networks outside of that boundary, they require the functionality of a gateway. A gateway is often characterized as being the combination of a router and a modem. The gateway is implemented at the edge of a network and manages all data that is directed internally or externally from that network. When one network wants to communicate with another, the data packet is passed to the gateway and then routed to the destination through the most efficient path. In addition to routing data, a gateway will also store information about the host network’s internal paths and the paths of any additional networks that are encountered. Gateways are basically protocol converters, facilitating compatibility between two protocols and operating on any layer of the open systems interconnection (OSI) model. One use for gateways is creating a communication link between an IoT environment and the cloud.Types of gatewaysGateways can take several forms and perform a variety of tasks. Examples of this include:
Additionally, a service provider may develop their own personal gateways that can be used by customers. For instance, Amazon Web Services (AWS) has an Amazon API Gateway that allows a developer to connect non-AWS applications to AWS back end resources. Difference between a gateway and a routerGateways and routers are similar in that they both can be used to regulate traffic between two or more separate networks. However, a router is used to join two similar types of networks and a gateway is used to join two dissimilar networks. Dissimilar could be used to describe networks that use different primary protocols. Due to this logic, a router may be considered a gateway, but a gateway is not always considered a router. Routers are the most common gateway, used to connect a home or enterprise network to the internet. Nice job! ARP is used to discover what MAC address is associated with a specific IP address. ARP stands for ______.
Question 1A network device that knows how to forward data along to other networks is known as a ______.
Question 3RFC stands for ______.
Question 4anges of IP addresses that anyone can use for their internal networks are known as ______.
Question 5In binary, 1 +1 = _____.
Question 6A single octet in an IP address represents what range of decimal numbers?
Question 7What protocol communicates data between routers representing the edges of autonomous systems?
Question 8How many bits long is an IP address?
Question 9Which is a valid IP address?
Question 10Which IP address is Class C?
Question 11What protocol is used to discover the hardware address of a node with a certain IP address?
Question 12What is the process of taking a large network and splitting it up into many individual and smaller subnetworks called?
Question 13What is the maximum decimal number possible to represent with 16 bits?
Question 14Computer A wants to send some data to computer B. Computer A knows that Computer B is not on its local network, so it sends the packet to the router between Network A and Network B. Based on how many network hops have happened, how much will the TTL field be decremented by? Question 15What type of network address space allows for nodes on a network to communicate with each other, but prevents any gateway router from forwarding traffic there, and are reserved for internal networks?
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