Lpi 306-300 Practice Exams
Last updated on Oct 21,2026- Exam Code: 306-300
- Exam Name: LPIC-3: High Availability and Storage Clusters - Exam 306, version 3.0
- Certification Provider: Lpi
- Latest update: Oct 21,2026
HAProxy is commonly used as a load balancer in Load Balanced Clusters.
What is the primary function of HAProxy?
- A . Backend server networking
- B . Connection scheduling algorithms
- C . Load balancing and proxying
- D . IP address failover
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 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 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 VRRP (Virtual Router Redundancy Protocol) in a Load Balanced Cluster?
- A . Load balancing algorithm selection
- B . Backend server configuration
- C . IP address failover
- D . ACL management
Which file is commonly used to persist network bonding and VLAN configuration in Linux?
- A . /etc/network/interfaces
- B . /etc/sysconfig/networking-scripts/ifcfg-*
- C . /etc/systemd/network/.network
- D . /etc/systemd/network/.netdev
How can you change the RAID level of an existing device?
- A . By modifying the /proc/sys/dev/raid/ file.
- B . Using the mdadm command with the –change-level option.
- C . By running the lvm command with the –change-level option.
- D . By reformatting the RAID device with the desired level.
What are metadata formats and RAID geometries in the context of RAID arrays?
- A . They refer to the file systems used on the RAID devices.
- B . They describe the layout and configuration of the RAID array.
- C . They determine the size and capacity of the RAID devices.
- D . They specify the encryption algorithms used for data security.
Which command is used to create a GFS2 file system?
- A . mkfs.gfs2
- B . mount.gfs2
- C . fsck.gfs2
- D . gfs2_grow
Which file is used to configure S.M.A.R.T monitoring using smartmontools?
- A . /etc/smartd.conf
- B . /etc/monit.conf
- C . /etc/apcupsd.conf
- D . /etc/nvme-cli.conf