939 IEEE 802.15.4: Quiz Bank Part 1
939.1 Overview
This quiz bank section contains comprehensive review questions covering core IEEE 802.15.4 concepts. The questions are organized into three focused topic areas for better learning and review.
Total Questions: 11 comprehensive MCQs with detailed explanations Estimated Time: 45-60 minutes Difficulty: Intermediate to Advanced
Overview: Quiz Bank Overview - Learning objectives and study strategy
Part 1 Quiz Sections (Current): - Addressing and Network Structure - 4 questions - Power and Performance Calculations - 4 questions - Device Types and Security - 3 questions
Other Parts: - Part 2 - Comprehensive Review Questions 61-120 - Part 3 - Visual Reference Gallery
Study Materials: - 802.15.4 Fundamentals - Core concepts - 802.15.4 Topic Review - Quick reference
939.2 Quiz Sections
939.2.1 Addressing and Network Structure
4 Questions | 15-20 minutes
Topics covered: - Addressing modes - 16-bit short vs 64-bit extended addressing and overhead optimization - Tree addressing (Cskip) - Hierarchical address allocation algorithm - Superframe timing - SO/BO calculations for beacon-enabled networks - FFD vs RFD memory - Device type RAM requirements and routing capability
Key concepts: Address compression, distributed address assignment, duty cycle calculation, device type architecture.
939.2.2 Power and Performance Calculations
4 Questions | 20-25 minutes
Topics covered: - Battery life calculation - Duty cycle analysis for warehouse sensor deployment - Superframe structure with GTS - CAP percentage and slot allocation for HVAC control - Variant selection - 802.15.4g vs 802.15.4-2003 for industrial factory deployment - MAC retransmission reliability - Probability calculations and layer separation
Key concepts: Power budget, GTS allocation, sub-GHz advantages, link-layer vs end-to-end reliability.
939.2.3 Device Types and Security
3 Questions | 15-20 minutes
Topics covered: - RFD vs FFD capabilities - Healthcare patient monitor buffer clearing scenario - Security overhead - AES-128 CCM encryption with MIC-64 - Channel hopping - Thread network adaptive interference management
Key concepts: Frame packing efficiency, security header structure, PER-based channel blacklisting.
939.3 Learning Path
939.3.1 Recommended Study Order
- First: Review 802.15.4 Fundamentals for core concepts
- Then: Start with Addressing and Network Structure - foundational concepts
- Next: Work through Power and Performance - applied calculations
- Finally: Complete Device Types and Security - advanced topics
939.4 Whatβs Next
After completing Part 1: - Quiz Bank Part 2 - Additional comprehensive review questions - Quiz Bank Part 3 - Visual reference gallery for quick review - 802.15.4 Topic Review - Quick reference guide for exam preparation