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6.1 WatchMore Inc - NSC Information Technology - Question 6 - 2023 - Paper 2

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6.1 WatchMore Inc. is an international entertainment company that specializes in streaming television shows and movies. 6.1.1 Define the term VOD service. 6.1.2 Ea... show full transcript

Worked Solution & Example Answer:6.1 WatchMore Inc - NSC Information Technology - Question 6 - 2023 - Paper 2

Step 1

Define the term VOD service.

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A Video on Demand (VOD) service is a content delivery platform that allows users to choose and watch video content whenever they prefer, rather than at scheduled broadcast times.

Step 2

State TWO aspects that will be addressed by an EULA.

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The EULA will typically address copyright protection and restrictions regarding the number of devices a user can install and access the service from.

Step 3

Explain how geo-blocking works to deny users access to certain content of a VOD service.

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Geo-blocking restricts access to certain online content based on the user's geographic location. This is achieved by identifying the user's IP address and applying regional restrictions that prevent users from accessing content that is not licensed for viewing in their country.

Step 4

Give TWO ergonomic guidelines to avoid potential health problems.

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  1. Ensure that your workstation is set up properly, with your back straight and your forearms parallel to the ground while typing.
  2. Take regular breaks to stand, stretch, and rest your eyes during prolonged periods of screen use.

Step 5

Explain why VOD content will be streamed and not downloaded.

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Streaming VOD content allows users to access videos instantly without the need for storage space on their devices. It also enables a continuous flow of data that enhances user experience by minimizing wait times.

Step 6

What type of compression will be used on the type of content offered on VOD services?

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Lossy compression will be utilized on VOD services due to its ability to significantly reduce file sizes while maintaining acceptable quality for streaming.

Step 7

Explain why the answer to QUESTION 6.3.2(a) is most suitable for this type of content.

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Lossy compression is most suitable for VOD content as it reduces the amount of data being transferred, which is crucial for efficient streaming, especially under varying internet speeds.

Step 8

State ONE way in which the user can determine whether the site providing the payment platform uses a secure connection.

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Users can check for a URL that begins with 'https://' and look for a padlock icon in the browser’s address bar, indicating that their connection is secure.

Step 9

Motivate the need for encryption when doing online payments.

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Encryption protects sensitive information transmitted over the internet, ensuring that personal and financial details remain confidential and secure from cyber intrusions during online transactions.

Step 10

Explain the THREE basic steps of SSL encryption in short.

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  1. The client requests a secure connection to the server.
  2. The server responds by sending its SSL certificate, including the public key.
  3. The client verifies the server's certificate and establishes a secure session by encrypting the session key with the server's public key.

Step 11

Explain ONE technique used by cyber criminals to obtain the banking information of internet users.

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Phishing is a technique where cyber criminals impersonate legitimate entities through emails or websites to trick users into divulging their banking information.

Step 12

Explain the concept of scalability in this context.

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Answer

Scalability refers to the ability of the VOD service to handle increasing numbers of users and content without compromising performance or reliability.

Step 13

Describe TWO different ways in which virtualization can be used to make their service scalable.

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  1. Using virtualization to create multiple virtual servers allows them to distribute user requests evenly across different machines, improving response times.
  2. Virtualization enables resource allocation where computing power can be dynamically adjusted based on user demand.

Step 14

Motivate which ONE of the two approaches you will recommend based on the given scenario.

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I would recommend the replication/duplication approach, as it allows for greater data availability. If one server goes down, another can continue to provide access to the data.

Step 15

How can you ensure that databases that form part of a distributed database model at a company contain the same information over time as changes are made?

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Implement regular synchronization protocols that automatically update all instances of the database to reflect any changes made, ensuring data consistency across the distributed system.

Step 16

Define AI.

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Artificial Intelligence (AI) refers to the simulation of human intelligence processes by computer systems, including learning, reasoning, and self-correction.

Step 17

State ONE advantage of using a chatbot to deal with user enquiries in this scenario.

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A chatbot can provide 24/7 assistance, allowing users to have their questions answered at any time without the need for human support.

Step 18

Give TWO reasons why it would be more appropriate to use a real person rather than a chatbot to handle user chats.

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  1. Real people can provide empathetic responses and handle complex queries that require nuanced understanding, which chatbots may struggle with.
  2. Some users prefer human interaction for sensitive issues, requiring a personal touch that chatbots cannot offer.

Step 19

Discuss any TWO other steps in relation to the scenario by giving a practical example from the scenario.

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  1. Analyzing the data by identifying what types of VOD content are most popular among different user demographics.
  2. Cleaning the data by removing outdated preferences and ensuring that user data is relevant for targeted recommendations.

Step 20

Discuss TWO specific challenges when working with big data.

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  1. The sheer volume of data can be overwhelming, making it difficult to process and analyze efficiently.
  2. Ensuring data quality and accuracy is a constant challenge when managing large datasets across various sources.

Step 21

Critically evaluate this practice in terms of possible negative effects/impacts on users.

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While personalized content recommendations can enhance user experience, they can also lead to privacy concerns as users may feel uncomfortable with the extent of data monitoring and profiling being used.

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