Fault Tolerance
David Foster
6 min read
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Study Guide Overview
This study guide covers fault tolerance and its importance in system reliability. Key concepts include the definition of fault tolerance, redundancy (multiple paths, providers, load balancing, failover), benefits (reliability, security, scalability), and disadvantages (resource requirements, cost, feasibility). It also includes practice multiple-choice and free-response questions focused on applying these concepts.
#AP Computer Science Principles: Fault Tolerance Study Guide
Hey there, future AP CSP master! Let's dive into fault tolerance, a crucial concept for understanding how the internet and other systems stay reliable. This guide is designed to be your go-to resource, especially the night before the exam. Let's make sure you're feeling confident and ready to ace it!
#4.2 Fault Tolerance: Keeping Things Running
#What is Fault Tolerance?
Fault tolerance is the ability of a system to continue functioning properly even when one or more of its components fail. Think of it as having a backup plan for when things go wrong. 💡
- Definition: A fault-tolerant system can operate despite failures.
- Real-World Analogy: Like a road system, if one road is blocked, you can still reach your destination using another route.
- Digital Example: The internet is designed to be fault tolerant, ensuring data reaches its destination even if some paths are down.
Image: A visual representation of fault tolerance, showing multiple paths to a destination.
#Redundancy: The Key to Fault Tolerance
Redundancy is a core component of fault-tolerant systems. It involves having extra components that can take over if others fail. Think of it as having backups for your backups!
Redundancy = Backup Plans
- Multiple paths for data packets to travel through the internet. ...
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