361.1 High Availability Concepts and Theory (weight: 6) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which SRE principle emphasizes the use of automated tools to reduce human error and improve efficiency?

   • AToil reduction
   • BAutomation
   • CError budgets
   • DService level objectives (SLOs)
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   When designing a cluster architecture for a mission-critical database, which factor is most important to prioritize?

   • AReducing the number of nodes
   • BMinimizing hardware cost
   • CMaximizing availability
   • DSimplifying the network topology
   Reveal Solution Discussion Select an answer first
4. 8expert · hard

   A media streaming company is designing a new cluster for its video transcoding service. The service is stateless: each transcoding job is independent and can be processed by any node. The workload is highly variable, with peaks during evening hours and troughs at night. The company has a limited budget and wants to minimize idle capacity. Which architecture is most appropriate?

   • AActive-active cluster where all nodes process transcoding jobs concurrently and share a common job queue.
   • BActive-passive cluster with a dedicated standby node that is always on and ready to take over.
   • CSingle-node cluster with a high-performance server that can handle the peak load.
   • DShared-nothing cluster where each node has its own dedicated storage and processes only jobs assigned to it.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   In Site Reliability Engineering (SRE), what is the purpose of an error budget?

   • ATo allocate a specific amount of money for handling system errors
   • BTo define the maximum acceptable amount of downtime or failure within a given period
   • CTo track the number of errors reported by users
   • DTo reserve resources for debugging and testing
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   An online banking application uses a cluster of web servers behind a load balancer. The application maintains user session data in memory on each web server. During a failover, users are being logged out and losing their session state. What is the most effective solution to maintain session persistence across failovers?

   • AMove session state to a shared, centralized store such as a Redis cluster or a database.
   • BUse a round-robin load-balancing algorithm to distribute requests evenly across all web servers.
   • CConfigure the load balancer to use source-IP affinity so that a user always connects to the same web server.
   • DIncrease the session timeout on the web servers to keep sessions alive longer during a failover.
   Reveal Solution Discussion Select an answer first