Compiled Learning Objectives

At the end of the sprint, you should be able to do the following things. Make sure to check you can do them all, and if not, go back and keep practicing until you can.

NodeJS

• Identify and explain why someone may use NodeJS

Writing a NodeJS program

• Write a zero-dependencies NodeJS program

Using dependencies from npm

• Define a library

Installing dependencies with npm

• Use a dependency in a NodeJS program

Operating systems

• Define an operating system.
• Describe what an kernel is.
• Explain what a process is.
• List what processes are created when running ls | grep '[A-Z]'.
• Explain what a system call (syscall) is.
• Give three examples of syscalls.

Workshop: Process Spelunking

• Find the PID of a process, using ps.
• Define a file descriptor.
• List a process’s open file descriptors, using lsof.
• Define a system call.
• List the system calls performed by a process, using strace
• Interpret the output of strace.
• Interpret return values of syscalls by referencing man 2.