Study Guide for Test

RB109

Specific Topics of Interest

• Local Variable Scope
• Ruby’s Pass by Reference of the Value
• Working with Collections
• Variables as Pointers
• puts vs return
• false vs nil and the Idea of “Truthiness”
• Method Definition and Method Invocation
• Implicit Return Value of Method Invocations and Blocks

Other Topics to Know

• Ruby Syntactical Sugar Pitfalls
• Variable Shadowing

Precision of Language

• Use Precise Vocabulary
• Evaluate a Block with precision

Practices Exercices

• Written Assessments

Study Techniques

• Recall Technique

RB129

Specific Topics of Interest

• What is Object Oriented Programming
• Classes and Objects
• Getter/Setter Methods in Ruby
• Instance Methods vs. Class Methods
• What is self in Ruby
• Fake Operators and Equality

RB139

Specific Topics of Interest

• Closure
• Ruby’s Proc and its Scope
• Blocks in Ruby
• Ruby’s Symbol
• Testing with Ruby
• SEAT Approach

LS171

The Internet

• Networking Foundations
• Physical Network
• Networking Models
  • Transport Layer
  • Internet/Network Layer
• DNS

TCP & UDP

• Transmission Control Protocol (TCP)
• User Datagram Protocol (UDP)

URLs, HTTP, Request/Response Cycle

• HyperText Transfer Protocol (HTTP)
• Stateful Web Applications

Security

• HTTP Security