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