Computer Science Revison Question

What is the first step in the compilation process?

• Lexical analysis

• Syntax analysis

• Semantic analysis

• Code generation

What is the purpose of a linker?

• To translate source code into machine code

• To combine object files into an executable file

• To optimize the machine code

• To check the syntax of the code

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 a regular expression?

• A type of programming language

• A type of algorithm

• A pattern that matches a sequence of characters

• A data structure used to represent a tree

What is the difference between open source and closed source software?

• Open source software is more reliable than closed source software.

• Open source software is more secure than closed source software.

• Open source software is free, while closed source software is not.

• Open source software allows users to view and modify the source code, while closed source software does not.

What is the purpose of a virtual machine?

• To run programs written in a specific programming language

• To simulate a physical computer

• To optimize code

• To debug programs

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.

A software company is developing a new application that uses multiple libraries for functionality. During testing, the application fails to run on some systems because it cannot find a specific library file.

What is the most likely cause of this issue?

• The application was statically linked with the library.

• The library was dynamically linked, and the required library file is missing on some systems.

• The compiler failed to generate machine code for the library.

• The library is not compatible with the application.

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.

Why is applications generation considered important?

• It allows software developers to earn revenue.

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

• It eliminates the need for coding knowledge.

• It ensures applications are always open source.