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 Sep 25,2024.
- Exam Code: 306-300
- Exam Name: LPIC-3: High Availability and Storage Clusters - Exam 306, version 3.0
- Certification Provider: Lpi
- Latest update: Sep 25,2024
What are the key concepts of Ceph updates?
- A . Update order, tunables, and features
- B . Update intervals, reliability, and performance
- C . Update compatibility, licensing, and documentation
- D . Update security, monitoring, and automation
Which utility is used for monitoring and managing system resources in monit?
- A . smartctl
- B . nvme-cli
- C . apcupsd
- D . monit
What is the purpose of configuring high availability aspects of GlusterFS?
- A . To prevent unauthorized access to storage volumes.
- B . To ensure continuous availability of storage services.
- C . To optimize storage performance for specific workloads.
- D . To enable replication of data across multiple storage nodes.
What is true for a virtual IP address in the context of keepalived? (Choose TWO correct answers.)
- A . The distinct IP addresses of all backend servers are called virtual IP addresses.
- B . Every server running keepalived has exactly one virtual IP address and cannot have any additional virtual IP addresses.
- C . The virtual IP address is the address to which incoming connections are made in order to reach the load balancer.
- D . keepalived uses VRRP to ensure the availability of the virtual IP address.
- E . Within the whole LVS cluster managed by keepalived, the virtual IP address never appears on any network interface.
When running a Linux Virtual Server (LVS) cluster, what is the purpose of a nanny process?
- A . Each nanny process checks the state of one configured service on one real server, and tells LVS if the service on that real server is malfunctioning.
- B . The nanny process powers off a nonfunctional backend server.
- C . The nanny process restarts the daemon of a failed service on a real server node.
- D . The nanny process changes the IP routing table in the Linux kernel according to the LVS configuration.
Which of the following statements is true about clustered file systems?
- A . They are only used for distributed file storage.
- B . They cannot be maintained and troubleshooted.
- C . They provide concurrent access to shared file systems in a cluster.
- D . They are limited to specific Linux distributions.
Which of the following are tools or services that manage a Linux Virtual Server (LVS) setup? (Choose TWO correct answers.)
- A . keepalived
- B . ldirectord
- C . lvproxy
- D . roundrobind
- E . vserverd
In a Pacemaker cluster, which one of the following commands shows the right syntax for fencing the node on port 3 using the APC rack PDU device which can be found at IP address 192.168.1.145?
- A . apc_stonith -a 192.168.1.145 -l apc -n 3 -v -o shutdown -r now
- B . fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o shutdown -r now
- C . fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot
- D . apc_stonith -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot
Using Linux Virtual Server (LVS) without any additional tools provides which of the following features?
- A . Balancing network connections across several backend servers.
- B . Automatically taking over the services of failed nodes.
- C . Restarting failed services on the backend servers.
- D . Checking the integrity of services on backend servers.
- E . Starting and stopping backend servers as needed.
What is the purpose of mdadm monitoring and reporting?
- A . To track the CPU usage of the RAID devices.
- B . To monitor the temperature of the RAID disks.
- C . To receive notifications about RAID array failures.
- D . To optimize the performance of the RAID array.
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