System Resiliency

5 minutes 5 Questions

System Resiliency is the ability of a system to withstand and recover from failures, disruptions, and security incidents while maintaining its functionality and performance. It encompasses concepts such as fault tolerance, redundancy, high availability, disaster recovery, and business continuity planning. By designing systems and infrastructure with resiliency in mind, organizations can ensure that their services and operations continue to function in the face of unexpected events or adverse conditions. A resilient security architecture encompasses effective risk management strategies, contingency planning, and security controls to detect, respond to, and recover from various threats and incidents, ultimately minimizing potential damage and reducing downtime.

Guide: Understanding System Resiliency & Answering Exam Questions Successfully

What is System Resiliency?
System resiliency refers to the ability of a system or network infrastructure to quickly recover and restore its functionality after an outage, accident, or any disruption. It involves designing the system in a way that allows it to continue operating, albeit at a reduced level even during disruption, and to rapidly recover to normal operating levels after the disruption is resolved.

Why is System Resiliency Important?
System resiliency is critical for maintaining service availability and preventing revenue loss, reputation damage, and regulatory penalties that might accompany system failure. It ensures business continuity, minimal data loss, and swift recovery after a disruption.

How Does System Resiliency Work?
System resiliency uses various strategies such as redundancy, fault tolerance, high availability, disaster recovery, and backups. It incorporates robust design, effective incident management, and planned routine maintenance to ensure the system can withstand disruptions and recover quickly.

Exam Tips: Answering Questions on System Resiliency
1. Understand the concept of system resiliency thoroughly including its related strategies.
2. Review the risks and challenges associated with achieving system resiliency.
3. Learn how to apply system resiliency in real-world scenarios.
4. Practice answering questions on system resiliency. Use precise, clear language and answer what is asked.
5. Keep up-to-date with the latest trends and developments in system resiliency.

Remember to keep calm and take your time answering the questions on the exam. Good luck!

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Question 1

A large financial company experiences frequent outages due to hardware failures. How can the company improve system resiliency and minimize downtime?

Replace hardware components only as they fail Move applications to offsite web servers Incorporate redundant hardware components into the system Upgrade to latest hardware available

Correct Answer: Incorporate redundant hardware components into the system

Incorporating redundant hardware components improves system resiliency by reducing the impact of hardware failures. Upgrading hardware or replacing components on a schedule may still result in downtime, and moving applications or creating a remote site does not address the underlying hardware reliability issue.

Question 2

An organization's primary cloud-based ERP system experiences an outage when the cloud service provider suffers a network disruption. How can the organization increase system resiliency in case of future disruptions?

Move applications to an on-premise data center Increase network redundancy with multiple firewalls Implement additional data backups to the same service provider Adopt a multi-cloud strategy using different providers

Correct Answer: Adopt a multi-cloud strategy using different providers

A multi-cloud strategy increases system resiliency by reducing reliance on a single cloud provider, reducing the risk of service disruption. Moving applications on-premise, using multiple firewalls, or adding backups may not mitigate the risk of future outages, while migrating to a different cloud provider provides no guarantee of improved availability.

Question 3

An organization is deploying a new web application to process sensitive client data. Which resiliency measures should be prioritized to protect the application against single points of failure?

Security audits and patch management Vulnerability Assessment and Penetration Testing Redundancy and fault tolerance Intrusion Detection Systems and Encryption

Correct Answer: Redundancy and fault tolerance

Redundancy and fault tolerance can protect applications against single points of failure by providing multiple components that can take over if one fails. The wrong answers focus on security measures, monitoring, and maintenance that, while significant, do not directly address a single-point-of-failure issue.

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