Combinatorial Testing and Infeasibility.
ANSWER
Imagine you are responsible for testing a web application that has multiple features, and you want to ensure thorough coverage of different scenarios. The application can be accessed through different web browsers (A, B, C) and on different operating systems (X, Y, Z). Additionally, there are three user roles (P, Q, R) with different permissions and privileges.
Your goal is to create test cases that cover all possible combinations of browsers, operating systems, and user roles to ensure comprehensive testing. However, due to infeasibility, some combinations may not be practical or necessary to test. For instance:
- Testing on Browser A and Operating System X with User Role P is feasible and necessary for basic functionality.
- Testing on Browser B and Operating System Y with User Role Q is also feasible and important for a specific user group.
- However, testing on Browser C and Operating System Z with User Role R might be infeasible because of the following reasons:
- Compatibility: Browser C might not be supported by Operating System Z, making this combination infeasible.
- Business Logic: User Role R may not have permissions that are relevant to Browser C, making it unnecessary to test this combination.
In this scenario, the infeasibility arises from technical constraints (browser and OS compatibility) and logical constraints (user role permissions). Therefore, it would not be practical to create test cases for the infeasible combination of Browser C, Operating System Z, and User Role R.
This example demonstrates how infeasibility can be a crucial consideration in combinatorial testing to ensure efficient allocation of resources and focus on testing the most relevant and practical combinations while omitting those that are impractical or unnecessary for the application’s functionality and requirements.
QUESTION
Description
assignment 1
Question 1: Enhancing Network Efficiency with Switching
Task:
a) Compare and contrast traditional Ethernet with high-speed Ethernet technologies, highlighting the key differences in terms of data transfer rates and networking capabilities.
b) Explain how network switches improve network efficiency compared to bridges and hubs. Illustrate with a labeled diagram depicting the data flow in a switched network.
Question 2: Implementing Virtual LANs for Network Segmentation
Task:
a) Define Virtual LANs (VLANs) and their significance in modern networking environments.
b) Design a network topology that includes two or more VLANs to segment different departments or user groups within an organization. Justify your VLAN design based on security, scalability, and network performance.
Question 3: Power over Ethernet (PoE) Implementation
Task:
a) Investigate the concept of Power over Ethernet (PoE) and its practical applications in networking infrastructure.
b) Analyze the benefits and challenges of implementing PoE in a network, considering factors such as device compatibility, power requirements, and cost-effectiveness.
Assessment:
The assignment will be assessed based on the following criteria:
1. Comprehensive comparison of traditional and high-speed Ethernet technologies for Question 1a.
2. Clear explanation and diagram of how network switches improve network efficiency for Question 1b.
3. Well-designed network topology with justifications for VLAN implementation for Question 2.
4. In-depth analysis of the benefits and challenges of Power over Ethernet for Question 3.
5. Integration of relevant research and real-world examples to support arguments and findings.
Note: Students are encouraged to use any diagramming tool of their choice (e.g., Microsoft Visio, Lucidchart) to create the network topology diagram. Additionally, all sources should be cited appropriately using the required citation style.
Format and Guidelines:
The essay should be concise and within the 1000-word limit.
Use a clear and logical structure, including brief headings for each part.
Ensure proper citation and referencing of any sources used.
Demonstrate critical thinking by providing relevant examples and supporting evidence.
Use academic writing style and language appropriate for a graduate-level assignment.
Submission: Submit your essay as a Word document
*Failure to include a cover page with the exact formatting used in the assignment policy and/or reference page will result in a 10-point deduction*
Your assignment submission will be turned into Turnitin. Turnitin does verify the use of AI-generated material, and this will be considered plagiarism.
Note: It’s essential to review the specific guidelines and requirements provided by your instructor or institution before completing the assignment.
Assignment 2
Infeasibility”
Looking at Coverage Criteria (from Chapter 8) can you think of a real-world example involving combinatorial coverage with limits due to “infeasibility”?
For example, I can drive my car from my house to the IGU campus by taking various combinations of roads A, B, C, D, E, F, G with these considerations:
I can drive to IGU by road ( A then B )
followed by either C and then D then F
or followed by D and then F
except that D is sometimes blocked during rush hour (and is, therefore, “infeasible”) and so
when I want to take D and it’s blocked I must instead, take G.
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