How can you create and manage Rados Block Devices (RBDs) in Ceph?

How can you create and manage Rados Block Devices (RBDs) in Ceph?A . By using the ceph-deploy command-line tool.B . By configuring OSDs with the desired storage devices.C . By interacting with the rados command-line tool.D . By adjusting the CRUSH map to include RBD pools.View AnswerAnswer: C

August 10, 2024 No Comments READ MORE +

Which utility is used for monitoring and managing system resources in monit?

Which utility is used for monitoring and managing system resources in monit?A . smartctlB . nvme-cliC . apcupsdD . monitView AnswerAnswer: D

August 9, 2024 No Comments READ MORE +

In a cluster with shared-nothing architecture, how is data shared between nodes?

In a cluster with shared-nothing architecture, how is data shared between nodes?A . Nodes share a common diskB . Data is replicated across all nodesC . Each node has its own copy of dataD . Data is distributed across multiple disksView AnswerAnswer: C

August 9, 2024 No Comments READ MORE +

What is the primary function of HAProxy?

HAProxy is commonly used as a load balancer in Load Balanced Clusters. What is the primary function of HAProxy?A . Backend server networkingB . Connection scheduling algorithmsC . Load balancing and proxyingD . IP address failoverView AnswerAnswer: C

August 9, 2024 No Comments READ MORE +

Which utility is commonly used to manage and control DRBD devices?

Which utility is commonly used to manage and control DRBD devices?A . drbdadmB . drbdmonC . drbdsetupD . drbdmetaView AnswerAnswer: A

August 9, 2024 No Comments READ MORE +

Which of the following situations can result in a split brain situation in a high availability cluster?

Which of the following situations can result in a split brain situation in a high availability cluster?A . The load balancer of a load balanced cluster fails.B . The communication between the cluster nodes is interrupted.C . Cluster services are moved between cluster nodes.D . More than one node is...

August 9, 2024 No Comments READ MORE +

Which of the following sections are found in the Pacemaker configuration XML file?

Which of the following sections are found in the Pacemaker configuration XML file?A . <pacemaker> and <corosync>B . <configuration> and <status>C . <nodes> and <services>D . <ressources> and <services>E . <cluster> and <state>View AnswerAnswer: B

August 8, 2024 No Comments READ MORE +

What is the purpose of monitoring S.M.A.R.T values using smartmontools?

What is the purpose of monitoring S.M.A.R.T values using smartmontools? A. To monitor the system's CPU usage. B. To monitor the system's memory usage. C. To monitor the health of storage devices. D. To monitor network bandwidth usage.View AnswerAnswer: C

August 8, 2024 No Comments READ MORE +

What is the purpose of fencing in a high availability cluster?

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...

August 8, 2024 No Comments READ MORE +

How can you configure VLANs on network interfaces?

How can you configure VLANs on network interfaces?A . By modifying the /etc/network/interfaces file.B . By using the nmcli command with appropriate options.C . By configuring VLANs in the switch configuration.D . By running the ifenslave command with VLAN parameters.View AnswerAnswer: A

August 8, 2024 No Comments READ MORE +