Unit 2 Networking Assignment Answers UK – BTEC HND Level 4

Unit 2 Networking of BTEC HND in Computing has been designed to enable the students to develop an understanding of network systems and their components. The unit will also explore how these systems work together. The unit starts with an overview of network systems and their components. It then looks at how these systems work together. The students will learn about different types of networks, their topologies, and the protocols that are used to communicate between them. The course will also teach the students about the different types of media that can be used to connect these networks together.

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In this section, we are discussing some assigned tasks. These are:

Assignment Task 1: Examine networking principles and their protocols.

Network systems have certain basic principles that govern their function and operation. These principles include the following:

• All devices on a network must have a unique address so that they can be identified and communicate with each other.
• Data must be broken down into small packets before it can be transmitted across a network.
• There must be a way to route the packets from the source to the destination.
• There must be a way to ensure that the data is not lost or corrupted during transmission.

The most common network protocols are the following:

• TCP/IP (Transmission Control Protocol/Internet Protocol): This is the most common protocol used on the Internet and on most other networks. It is a reliable, connection-oriented protocol that uses error-checking to ensure that data is not lost or corrupted during transmission.
• UDP (User Datagram Protocol): This is a simple, connectionless protocol that does not provide any error-checking. It is often used for real-time applications such as streaming audio or video where data loss is less critical.
• IPX/SPX (Internetwork Packet Exchange/Sequenced Packet Exchange): This is a protocol that was developed by Novell for use on their NetWare network operating system. It is now being replaced by TCP/IP on most networks.
• NetBEUI (NetBIOS Extended User Interface): This is a protocol that was developed by Microsoft for use on their LAN Manager and Windows NT network operating systems. It is not commonly used outside of these networks.

Assignment Task 2: Explain networking devices and operations.

Networking devices are the hardware components that are used to connect computers and other devices together on a network. The most common networking devices are the following:

• Hubs: Hubs are simple devices that connect the computers and other devices on a network together. They provide a common connection point for all of the devices on the network and allow them to communicate with each other.
• Switches: Switches are more sophisticated than hubs and provide a dedicated connection between the devices on the network. This allows for better performance and more security.
• Routers: Routers are used to connect two or more networks together. They route the data packets from one network to another based on their destination IP address.
• Bridges: Bridges are used to connect two or more LANs together. They filter the data traffic so that only the packets that need to be forwarded to the other LAN are sent.
• Modems: Modems are used to connect a computer to the Internet or to another computer over a telephone line. They convert digital signals from the computer into analog signals that can be transmitted over the phone line.

The most common operations that are performed on networking devices are the following:

• Configuration: The devices on a network must be configured with the correct settings in order for them to communicate with each other. This includes setting the correct IP addresses, subnet masks, and gateway addresses.
• Communication: The devices on a network communicate with each other by sending and receiving data packets.
• Routing: Routers use routing tables to determine where to send the data packets that they receive. The routing tables are populated with information about the network that is stored in the form of routes.
• Switching: Switches use switching tables to forward the data packets that they receive. The switching tables are populated with information about the devices on the network so that the switch knows where to send the packets.
• Error checking: The devices on a network use error-checking mechanisms to ensure that the data packets are not lost or corrupted during transmission.
• Security: The devices on a network use security measures to protect the data from being seen or modified by unauthorized users.

These are the basic operations that are performed on networking devices. There are many other more advanced operations that can be performed, but these are the most common.

Assignment Task 3: Design efficient networked systems.

Designing efficient networked systems is all about understanding how data flows through a network and identifying ways to optimize that flow. There are a number of factors to consider when designing efficient networked systems, such as bandwidth, latency, and networking protocols.

• Bandwidth is the amount of data that can be transferred through a network connection in a given period of time.
• Latency is the delay between the time a request is made and the time it takes for the response to return.
• Networking protocols are the rules that govern how data is exchanged between devices on a network.

There are a number of techniques to optimize data flow in a network, such as a load balancing and caching.

• Load balancing distributes traffic evenly across multiple servers to prevent any one server from becoming overloaded.
• Caching stores often-requested data locally so that it can be quickly retrieved without having to send a request to the server.

Both of these techniques can be used to improve the performance of networked systems.

Assignment Task 4: Implement and diagnose networked systems.

• Documentation is an important part of any networked system implementation. Detailed documentation can help to ensure that the system is installed correctly and can be used to troubleshoot problems that may arise.
• Another important aspect of implementing networked systems is testing. Thorough testing can help to ensure that the system works as intended and can identify any potential problems before the system is put into production.
• Once a networked system is in production, it is important to monitor the system to ensure that it is performing as expected. Monitoring can be done manually or using automated tools. Automated monitoring tools can provide early warning of potential problems so that they can be addressed before they cause downtime.

Networked systems are complex and often critical to business operations. Proper care and attention must be paid to the design, implementation, and monitoring of these systems to ensure that they are reliable and effective.

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