COMPUTER SCIENCE - QUIZZ

What are the key Functions of an operating system?
Select all that apply

• Hardware Management: Controls devices like the keyboard, mouse, screen, storage, and printer.

• Networking: Allows the computer to connect with other devices and networks.

• Security: Protects the computer from unauthorized access.

• None of above

What is the time complexity of inserting an element at the beginning of a singly linked list?

• O(n^2)

• 
  O(n)

• O(log n)

• O(1)

A London-based AI company develops an application to classify customer emails. The classification logic is implemented in a custom scripting language. Debugging shows the script is misclassifying certain patterns.

Which phase of the compiler should be reviewed?

• Machine code generation

• Code optimization

• Abstract syntax tree generation

• Lexical analysis

A logistics company in Leeds needs to process a large volume of input data from sensors. They decide to use a compiler that generates highly optimized code. However, they observe delays during the code compilation process.

Which optimization is most likely to slow down the compilation process?

• Syntax analysis

• Code inlining

• Register allocation

• Dead code elimination

Why is applications generation considered important?

• It helps to enhance productivity, education, and entertainment.

• It allows software developers to earn revenue.

• It eliminates the need for coding knowledge.

• It ensures applications are always open source.

A fintech company in London is building a secure payment gateway system. They decide to use static linking for some critical libraries to ensure that the executable works consistently across their deployed servers. However, they notice that the size of their executables has increased significantly compared to when they used dynamic linking.



What is a potential reason the company chose static linking despite the increase in executable size?

• To enhance the performance of the payment gateway by using fewer system resources.

• To comply with GDPR requirements in the UK.

• To allow for easier updates to the library code after deployment.

• To reduce runtime dependency on external library files.

• None of the above

An e-commerce company is launching a new website in the UK. The website will sell a variety of products.

What are some of the key considerations for designing a secure e-commerce website?

• The website should use HTTPS to encrypt data.

• The website should have strong passwords and two-factor authentication.

• The website should be regularly updated with security patches.

• All of the above.

What is the difference between a compiler and an interpreter?

• A compiler translates the entire program at once, while an interpreter translates one line at a time.

• A compiler translates the program into machine code, while an interpreter executes the program directly.

• A compiler is faster than an interpreter.

• All of the above.

What is the first step in the compilation process?

• Syntax analysis

• Semantic analysis

• Lexical analysis

• Code generation

What is the main drawback of using Quick Sort for a highly skewed dataset?

• The algorithm’s partitioning leads to uneven divisions, causing a worst-case time complexity of O(n^2).

• Quick Sort has a high average-case complexity of O(n^2).

• Quick Sort requires additional space, making it inefficient for large datasets.

• It cannot handle datasets with duplicate elements efficiently.