Exam CAS-004 topic 1 question 384 discussion

BC everyone agrees. Out of all other options H seems the best. Because it will be resilient to 0 day attacks. H. Ensuring technological diversity on critical servers

BC everyone agrees on. E seems like an insane choice to me. It doesn't say OPTIMIZE storage I/O, it says LOWER it. Decreasing the I/O on the storage network will INCREASE latency. It's literally an answer to make the system perform worse. F will in fact improve your uptime. By implementing RAID on the backup servers you are increasing. your resilience against hardware failure and ensuring you don't lose any data.

Other options, such as RAID or employing redundant power for workstations, don't directly contribute to the requirements as effectively as the chosen solutions. So, the correct Ans to this question is BCH

I change my mind to BCH B. Deploying a content delivery network (CDN).Why it's important: A CDN helps to reduce load times by caching content at edge locations closer to end users. This means users can retrieve content more quickly, thus meeting the requirement of load time in 3 seconds and improving the performance of the web service globally. C. Implementing server clusters Why it's important: Server clusters ensure high availability by distributing the load across multiple servers, which reduces the risk of downtime if one server fails. This directly supports the 99.99% uptime requirement by providing redundancy and improving fault tolerance. H. Ensuring technological diversity on critical servers Why it's important: Technological diversity refers to using different types of technologies (e.g., different operating systems, hardware, or platforms) for critical servers. This increases the resilience of the system by preventing a single point of failure.

BCE Ans.

BC Learning E, "lowering storage input/output" because storage metrics are really important in performance Learning F, for uptime, not decide yet because RAID.

B. Deploying a content delivery network (CDN): This will significantly improve load times by caching content closer to users, reducing latency, and speeding up content delivery. C. Implementing server clusters: This will enhance system reliability and uptime by providing redundancy and load balancing. If one server fails, others can take over, ensuring continuous availability. F. Implementing RAID on the backup servers: This will provide data redundancy and reliability, ensuring that data loss or disk failures do not cause extended downtimes, thus contributing to the overall uptime requirement.

To best meet the requirements of 99.99% uptime, load time in 3 seconds, and response time less than 1.0 seconds, the security engineer should recommend the following: B. Deploying a content delivery network: A CDN helps reduce load times by caching content closer to the end-users, thereby improving response times and overall uptime. C. Implementing server clusters: Server clusters can provide redundancy and load balancing, which are crucial for maintaining high availability (99.99% uptime) and improving response times. H. Ensuring technological diversity on critical servers: Technological diversity can help avoid single points of failure and ensure that critical services remain available, thus contributing to high uptime and reliable performance. These recommendations address performance, redundancy, and high availability, which are critical for meeting the contractual requirements.

B. Deploying a content delivery network (CDN): A CDN helps distribute content geographically, reducing load times by serving content from servers located closer to end-users. This can improve both load time and response time. C. Implementing server clusters: Server clustering involves connecting multiple servers to work together, providing high availability and load balancing. This can enhance uptime and distribute the processing load, contributing to better response times. E. Lowering storage input/output: Optimizing storage input/output can improve overall system performance, contributing to faster load times and reduced response times. This can involve using faster storage devices or optimizing the storage subsystem.

B. Deploying a content delivery network (CDN): A CDN helps distribute content to various servers across different geographical locations, reducing latency and improving load times by serving content to users from the nearest server. This would significantly contribute to meeting load time and response time requirements. C. Implementing server clusters: Server clustering enhances reliability and scalability by distributing the workload among multiple servers. It improves uptime by ensuring redundancy and failover capabilities, reducing the risk of service downtime due to server failures. E. Lowering storage input/output: Optimizing storage input/output (I/O) performance helps improve response times by ensuring data is retrieved or stored quickly. Strategies like optimizing database queries, using caching mechanisms, or employing faster storage solutions can contribute to meeting response time requirements.

You already addresed uptime by implementing clusters. D addresses response time.

BCF: will meet the basic requirement