Lpi 306-300 LPIC-3: High Availability and Storage Clusters – Exam 306, version 3.0 Online Training
Lpi 306-300 Online Training
The questions for 306-300 were last updated at Dec 20,2024.
- Exam Code: 306-300
- Exam Name: LPIC-3: High Availability and Storage Clusters - Exam 306, version 3.0
- Certification Provider: Lpi
- Latest update: Dec 20,2024
What is the purpose of a Storage Area Network (SAN)?
- A . To provide network connectivity for servers
- B . To store and retrieve data from remote block storage devices
- C . To connect multiple servers together in a cluster
- D . To manage file systems on distributed storage
How can you recover a RAID device after a failure?
- A . By replacing the failed disk and running the mdadm –rebuild command.
- B . By reformatting the RAID device and rebuilding the array from scratch.
- C . By running the fsck utility on the array to fix any disk errors.
- D . By modifying the /proc/sys/dev/raid/ file to restore the array.
Which of the following statements are true regarding a load balancer? (Choose TWO correct answers.)
- A . Failover clusters are not operational without at least one dedicated load balancer.
- B . All response packages sent from a backend server to a client must pass through the load balancer.
- C . The load balancer is usually deployed on one of the backend servers.
- D . Load balancers may be able to analyze traffic.
- E . All incoming connections to the cluster services are received by the load balancer.
In the command: crm configure ____ http-after-ipv4 Mandatory: VHost1IPv4 HTTPD which missing word is required in order to ensure that the service HTTPD is always started after the service VHost1IP?
Solution: order -or- ORDER
Determine whether the given solution is correct?
- A . Correct
- B . Incorrect
Which actions should be taken in a load balanced cluster in order to protect the load balancer against outages?
- A . Load balancers cannot be protected against outages which is why they should always be built on dedicated hardware.
- B . No actions are necessary as a load balancer cannot become a single point of failure.
- C . Two or more load balancers should be deployed as a cascade that passes packets from one to the other.
- D . Two load balancers should be deployed as a failover cluster.
- E . Load balancers are used for performance and scalability reasons only and cannot be used to archive high availability clusters.
What is the purpose of configuring system shutdown at specific UPS events?
- A . To prevent data loss during power outages.
- B . To optimize system performance during high resource usage.
- C . To automatically restart the system after a hardware failure.
- D . To extend the lifespan of storage devices.
Which command-line utility is used to manage the Pacemaker cluster configuration database?
- A . pcs
- B . crm
- C . crm_mon
- D . cibadmin
In a cluster with shared-nothing architecture, how is data shared between nodes?
- A . Nodes share a common disk
- B . Data is replicated across all nodes
- C . Each node has its own copy of data
- D . Data is distributed across multiple disks
What is the purpose of placement groups (PGs) in a Ceph cluster?
- A . To distribute data across OSDs for redundancy and performance.
- B . To manage access control for different storage pools.
- C . To synchronize data between MDS instances in a CephFS.
- D . To monitor the health and availability of MON nodes.
What is the purpose of fencing in a high availability cluster?
- A . Prevent failed nodes from interfering with the remaining intact part of the cluster.
- B . Ensure a consistent assignment of all network connections from a client to the same cluster server.
- C . Define constraints on which services may run on the same cluster node.
- D . Enforce storage quota and other resource limitations for each service provided by the cluster.
- E . Provide multi-tenancy cluster configuration for cloud computing.
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