Describe monitoring tools in Azure Flashcards
Describe the primary difference between vertical and horizontal scaling.
Vertical scaling involves adding more resources to a single machine (scaling up), while horizontal scaling involves adding more machines or instances (scaling out). Vertical scaling is limited by a single machine’s capacity, while horizontal scaling is virtually unlimited.
Explain how service level agreements (SLAs) are used in cloud computing.
Service level agreements (SLAs) are formal agreements between a service provider and a customer that guarantee a stated level of service, typically measured by availability (uptime). These agreements often include details on what constitutes downtime and any credits customers may be entitled to if the SLA is not met.
What are the advantages of using a Command Line Interface (CLI) over a web portal for cloud resource management?
CLIs are more efficient for repetitive tasks and batch operations, and they provide precise control over actions. They often include features not available in GUIs.
What is the benefit of ‘predictability’ in cloud computing, and what are its two main focuses?
Predictability in the cloud allows you to move forward with confidence, focusing on both performance predictability and cost predictability. Performance is enhanced through autoscaling and load balancing, while cost is controlled by real-time tracking and monitoring.
How does the decentralized nature of the cloud contribute to its reliability?
The decentralized design of the cloud allows for resources to be deployed across multiple regions globally. This ensures that even if a catastrophic event impacts one region, other regions remain operational, enhancing overall system resilience.
Explain how the cloud supports better governance and compliance for deployed resources.
Cloud features such as set templates help ensure resources meet corporate and regulatory standards, and cloud-based auditing flags non-compliant resources. Additionally, automatic updates and patches help with both governance and security.
Describe one way the cloud can enhance security, specifically with regard to DDoS attacks.
Cloud providers are typically equipped to handle DDoS attacks, making networks more robust and secure since the cloud is intended for over-the-internet delivery of IT resources.
What are the two primary types of manageability offered by the cloud?
The two main types are ‘management of the cloud,’ which focuses on managing cloud resources (scaling, templates, monitoring), and ‘management in the cloud,’ which refers to how users interact with cloud resources (through web portals, CLIs, APIs, or PowerShell).
How does autoscaling contribute to performance predictability?
Autoscaling automatically adds or removes resources based on demand, ensuring that resources are available to handle increased traffic. This dynamic scaling ensures consistent performance and helps avoid system overload.
What does it mean to manage a resource ‘in the cloud’ versus managing ‘of the cloud?’
Management ‘of the cloud’ focuses on managing your cloud resources, while management ‘in the cloud’ speaks to how you can manage your environment through different interfaces like web portals or APIs.
