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Updated on: 21st Apr 2023

ENG305 Computer Communications SUSS Assignment Sample Singapore

ENG305 Computer Communications is an exciting course for those seeking to hone their skills in the digital realm. With this course, students will explore the basic concepts and terms related to computer networks as well as evaluate various strategies for optimizing communication through modern technology.

In addition, a comprehensive study of network architecture, protocols, and fundamental principles of networking will introduce learners to cutting-edge topics such as cloud computing, security concerns, and fifth-generation (5G) networks. All of this knowledge is pertinent to anyone looking to develop a career in software engineering or information systems management. Sign up now and experience all that ENG305 has to offer!

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We will now enunciate the assignment tasks. These include the following:

Assignment Task 1: Illustrate the layer functions of OSI and TCP/IP protocol models.

At the most basic level, the Open System Interconnect (OSI) model can be used to illustrate how two separate systems communicate with one another. It divides the tasks of terminology, syntax and interrupts control into seven distinct layers that make up a model for the structured exchange of information between computers. The first layer, physical, communicates directly with hardware over wires and cables that transport the data from one system to another.

Then comes the data link layer which establishes a link between two nodes on a network. The network layer provides end-to-end delivery over multiple links. This is followed by the transport layer that handles errors, flow control and segmentation/desegmentation before finally passing it down to the session layer responsible for the reassembly of fragments along with dialog control and synchronization.

Onwards to the presentation layer responsible for syntax interpretation while finally arriving at the topmost application layer, which deals with specific applications seen by users such as printing files or displaying messages. As an alternative protocol suite, TCP/IP also has its own 4-layer model where each layer serves similar functions and allows devices connected to a network such as the Internet to communicate with one another seamlessly across different systems.

Assignment Task 2: Examine the fundamentals of signal and data transmissions, various signal encoding and modulation techniques.

Signal and data transmission is an integral component of modern communication systems. It involves the encoding of signals into a readable form, their transfer from one point to another and the decoding of those signals. One popular technique of transmitting audio and video over networks is through modulation – for instance, pulse-code modulation which encodes the signal in binary format, allowing for greater accuracy in transmission across long distances.

Furthermore, digital signal modulation techniques such as quadrature amplitude modulation are also used to reduce noise and interference in high bandwidth transmissions. All these methods ensure efficient data transfer while maintaining a certain degree of quality and accuracy.

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Assignment Task 3: Analyze the data link control protocols used in digital data communication.

Data link control protocols allow digital data communication to occur in increasingly reliable and effective manners. These protocols enable the transmission of messages across two nodes, each of which must be mutually aware of the other, and entail the specifications for how to construct and send frames efficiently.

This includes elements such as when to send message packets, ensuring data integrity, synchronizing the connection between nodes, being able to identify transmission errors and take steps for recovery, and more. Therefore, these protocols are essential for upholding productive and secure digital data exchanges.

Assignment Task 4: Demonstrate the analog and digital analog multiplexing techniques.

The analog and digital multiplexing techniques are two methods that allow for a single line of transmission to carry multiple signals at the same time. Analog multiplexing utilizes modulators and demodulators, allowing one carrier frequency to transmit signals from several sources making it excellent for applications such as radio, television, and telephone communication.

On the other hand, digital multiplexing splits up a larger data frame into more manageable chunks – which can travel separately on different paths – and then be reassembled at the destination. Generally used for computer networking and telecommunication technologies, digital multiplexing is also advantageous because it reduces hardware costs. Together these two types of multiplexing provide reliable methods to transfer information quickly, securely, and accurately between computers over long distances.

Assignment Task 5: Estimate the delay, throughput, efficiency, bit rate, and other parameters related to data communications.

Estimating delay, throughput, efficiency, and bit rate of data communications is a critical aspect of any successful data communication system. To accurately estimate these dynamic parameters, a thorough analysis can be done to collect and analyze the relevant variables–such as server response time, transfer speeds, available memory, network traffic, etc.–that will determine the ultimate performance of any given system.

By taking all of the factors into account efficiently and developing a robust strategy to secure communication channels, performance and reliability can be improved while keeping latency low and throughput high. Furthermore, not only should engineers develop appropriate solutions to measure these values in production systems but also use simulation environments to predict performance under certain circumstances for scalability purposes.

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Assignment Task 6: Compare the different media access control schemes in high-speed LANs; different data link protocols in data communications.

In high-speed Local Area Networks (LANs), different Media Access Control (MAC) schemes and data link protocols are used to facilitate communication between network nodes. The two main MAC schemes that exist are the random access scheme, where communication contention occurs among competing nodes, and the controlled access scheme, where orderly channel access management takes place.

Additionally, several data link protocols are available for use in data communications including point-to-point protocol (PPP), High-level Data Link Control (HDLC), and IEEE 802.3 Ethernet. Of these protocols, PPP is primarily used for remote connections over modem links, often featuring authentication via the use of passwords and usernames; HDLC is a bit-oriented protocol suitable for synchronous connections; and Ethernet is a popular choice amongst LANs that employs a collision detection method to prevent simultaneous communication attempts by multiple devices.

Ultimately, the choice of medium access control scheme and data link protocol chosen will vary based on the specific requirements of each individual application.

Assignment Task 7: Formulate error detection codes and received bit streams.

Error detection codes play a key role in effective communication between sender and receiver. To formulate error detection codes, bit streams are used to determine the presence of errors in the signal. The binary strings that make up the bit stream are analyzed for patterns to detect errors. The most successful method for detecting errors is to append a cyclic redundancy check or CRC as part of the transmitted signal.

This CRC contains data that may then be used by the receiver to detect any discrepancies in what was sent and what is received. By formulating error detection codes and analyzing the associated bit streams, we get enhanced accuracy in our communications and minimize potential data corruption issues.

Assignment Task 8: Rate the technologies and protocols used in Local Area Networks (LAN).

When rating the technologies and protocols used in Local Area Networks (LAN), Ethernet is undoubtedly at the top of the list for its dependability, performance, and security emerging from the IEEE 802.3 standard. Modern Ethernet also uses a split-collision domain, allowing data rates to skyrocket up to 10 Gb/s per link and providing reliable transmission with minimal retransmission of corrupted packages.

Additionally, WiFi technologies have evolved rapidly to provide mobility within LANs, making use of physical layer protocols like IEEE 802.11 and higher-layer protocols like TCP/IP to manage secure communication among multiple devices. Further development of WiMax technology enables LAN communication between wireless clients across large geographical areas. In conclusion, modern technologies have enabled reliable and secured communications in LAN networks while providing high data rates and mobility capabilities.

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