Describe Compute-Based Fault Tolerance Techniques DATA-PROTECTION-MANAGEMENT-FOUNDATIONS Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   How does live migration support fault tolerance?

   • ABy creating redundant copies of the VM on multiple hosts.
   • BBy automatically restarting VMs on the same host after a crash.
   • CBy allowing VMs to be moved off a failing host without interrupting service.
   • DBy providing a backup power source for the VM.
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   An organization runs a database on a two-node failover cluster. Each node has local RAID 1 arrays for the operating system and database software. The database data files are stored on a shared storage array. The active node experiences a hardware failure. The cluster automatically fails over to the passive node. Which compute-based fault tolerance techniques are combined in this scenario?

   • AHardware redundancy and load balancing
   • BClustering and RAID
   • CLoad balancing and RAID
   • DClustering and live migration
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A hospital runs its electronic health record (EHR) application on two physical servers in the same rack. Each server has dual power supplies and dual NICs. The application is configured as an active-passive failover cluster. During a scheduled firmware update, the active node is rebooted and the passive node takes over. However, the EHR application becomes unavailable for 10 minutes because the passive node's application service fails to start. Which additional compute-based fault tolerance technique would most directly prevent this type of outage?

   • ATest and validate the failover process regularly, including application startup on the passive node
   • BConfigure the passive node to use a RAID 1 array for its local disks
   • CEnable live migration between the two nodes
   • DAdd a third node to the cluster and configure it as an active-active node
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   An administrator needs to move a running VM from Host A to Host B to perform maintenance on Host A. The VM must experience minimal downtime. The hypervisor supports live migration. Which compute-based fault tolerance technique should the administrator use?

   • AVM replication
   • BFailover cluster
   • CLive migration
   • DVM snapshot
   Reveal Solution Discussion Select an answer first
6. 25foundation · medium

   A systems administrator is explaining fault tolerance to a new team member. Which statement correctly defines compute-based fault tolerance and distinguishes it from storage or network fault tolerance?

   • AIt guarantees continuous network connectivity by using redundant switches, routers, and links to avoid communication failures.
   • BIt ensures that processing capacity and application execution continue despite component or host failures, using techniques such as clustering and live migration.
   • CIt protects data from corruption by maintaining redundant copies across multiple storage devices, such as through RAID or replication.
   • DIt uses backup software to periodically copy application data to an offsite location so that recovery is possible after a disaster.
   Reveal Solution Discussion Select an answer first