Software engineering

map-of-contentssoftware-engineering

General

• About Linux
• Open Source Licenses
• Challenges faced by Open Source software
• Amdahl’s law
• Example of a bug that can arise when migrating 32-bit programs to 64-bit
• Boolean Algebra
• Abelian group
• How to view all TCP packets being sent to a port
• Graph data structure
• How to solve a Problem - according to George Polya
• Useful command line commands

Ruby on Rails

• How to get the Puma worker index within a rails index

Ruby

• Ruby - raise and rescue
  • How does rescue matchers work in Ruby and how can we hack it
  • Ruby - Multiple ways to raise exceptions
• Ruby triple equal operator

Git

• Change the last commit
• Changing older or multiple commits - using rebase
  • Using git rebase onto
• Ignore files in Git without changing gitignore
• Asking Git to ignore changes made to a tracked file
• Tracking evolution of function using Git logs

Web

• Difference between PUT and PATCH request
• HTTP Header - Time to Live (TTL)

C language

• Why did the C programming language see so much success
• What are pointers
• Typical sizes of basic C data types
• Type casting in C

History

• Birth of Unix
• Birth of Open Source Software

Databases

• Relational database
• Non-relational database
  • When to choose non-relational database
• Redis communication protocol

Computer systems

• Some definitions - buses, word size, main memory, program counter, operating system
• Lifecycle of running a program
• About using cache memories
• Operating systems

Data representations

• Byte ordering and addressing of objects stored in memory
• Bit vectors
• Same data bits can mean different things in different context
• How is a computer program stored in memory
• Representing different data types in binary
  • Operations on signed and unsigned integers
  • Security vulnerability in the XDR library due to overflow