Question 1hardmultiple choice
Full question →Question 128 of 300
hardmultiple choiceObjective-mapped
GCDL Practice Question: A reliability engineering team wants to…
This GCDL practice question tests your understanding of a reliability engineering team wants to…. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A reliability engineering team wants to proactively identify weaknesses in their distributed system by deliberately injecting failures — killing random instances, introducing network latency, and cutting off database connections — to observe how the system responds. What is this practice called?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Destructive testing — deliberately breaking the system to determine the breaking point.
Destructive testing pushes a system to failure to find limits. Chaos engineering is more controlled: small, deliberate experiments in production to discover unknown weaknesses, not to find the breaking point.
B
Best answer
Chaos engineering — deliberately injecting controlled failures to discover system weaknesses and build resilience confidence.
Chaos engineering tests system resilience through controlled failure injection. Each experiment validates (or reveals gaps in) the system's ability to handle unexpected failures without impacting users.
C
Distractor review
Penetration testing — simulating attacks to find security vulnerabilities.
Penetration testing probes security defenses by simulating attacker techniques. Chaos engineering tests operational resilience through failure injection — a different domain.
D
Distractor review
Load testing — verifying the system handles expected traffic volumes.
Load testing validates performance under expected (and peak) traffic volumes. Chaos engineering tests resilience to failures and unexpected conditions, not traffic volume.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Related practice questions
Related GCDL practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A traditional retailer currently maintains its own data centers, purchasing servers every 3–5 years and paying for facilities, power, and staff regardless of demand. When it migrates its workloads to the public cloud, which change in cost model does it experience?
Question 2
An e-commerce company plans its infrastructure for peak shopping events (e.g., Black Friday) which drive 50× normal traffic. On-premises, they must maintain 50× capacity year-round. In the cloud, they provision 50× capacity only during peak periods. Which cloud characteristic enables this cost optimization?
Question 3
Which term describes the process by which organizations integrate digital technology into all areas of their business, fundamentally changing how they operate and deliver value to customers?
Question 4
When a company moves from maintaining its own data center to using Google Cloud, which operational responsibility does Google assume that the company previously managed?
Question 5
A hospital runs a patient records system that must remain on-premises due to strict regulatory data residency requirements. However, they also want to use cloud-based AI for diagnostic imaging analysis. Which cloud deployment model best describes their architecture?
Question 6
What is virtualization in the context of cloud computing, and why is it fundamental to how cloud providers deliver services?
Practice this exam
Start a free GCDL practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this GCDL question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Chaos engineering — deliberately injecting controlled failures to discover system weaknesses and build resilience confidence. — Chaos engineering is the practice of deliberately introducing controlled failures into production (or production-like) environments to discover weaknesses before they cause unplanned outages. Originated by Netflix (Chaos Monkey), it tests the system's resilience by injecting: instance failures, network partitions, high latency, dependency failures. The goal is to build confidence that the system can withstand unexpected failures. Cloud environments with autoscaling, circuit breakers, and retries are tested and validated through chaos experiments.
What should I do if I get this GCDL question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related GCDL NAT questions on configuration and troubleshooting.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Discussion
Loading comments…
Sign in to join the discussion.
This GCDL practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the GCDL exam.