Reference no: EM133758095

Question: After crafting your main post, review two of your classmates' posts and analyze how their communication levels operate with the others.

PEER POST # 1

The presentation layer is essential to the banking industry because this is the layer in which encryption takes place. As the layer directly below the application layer, it is responsible for creating the encryption of information as it makes it way down to the physical layer. Encryption is a method of scrambling data that greatly reduces the risk of on path or man in the middle attacks. The data may still be intercepted, but it will be in a non-decipherable format. The decryption key is only accessible by the designated end user device. In banking, encryption is a critical security measure. We don't realize how often our financial information is transmitted over the internet for authorized, permissible business purposes. Our account numbers routing numbers, SSN, and card numbers are all about of our banking information and must be keep confidential. Without the presentation layer, our information would be transmitted online in plain text and could be easily intercepted by nefarious actors.

PEER POST # 2

The industry that I chose was banking/financial. Of the seven layers in the OSI model, the network layer (Layer 3) plays a crucial role in a banking network. Layer 3 states "logical addressing and path determination". Devices are assigned logical IP addresses and these addresses are used to help identify devices in a network. For example, ATMs, branch office computers, etc all have a unique IP address. Using these IP addresses, it also plays a crucial role for routing data from one another. With routing, you also want to make sure information is being sent to their destinations. For example, routers in a banking network make sure data packets are sent between data centers or branch offices in an effective manner. Let us say there was a transaction request made in a branch office. For it to reach its destination, it has to pass a number of routers along the way. In other words, it determines the route that the request will take to get from the branch office to the desired location.

With Layer 3, as stated above, devices are assigned unique IP addresses and in a banking network, there are a lot of devices, even new ones being connected. In an architecture configuration of the banking network, Layer 3 provides enhanced scalability and efficient handling of network traffic. Devices are being connected across various networks and Layer 3 makes sure that the network can scale properly to accommodate more branches and distant locations as banks grow. This allows the network to handle more traffic and new devices as well.