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Cohesity COH-285 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Troubleshoot NetBackup: This section of the exam measures skills of NetBackup administrators and focuses on resolving issues that occur during backup and recovery operations. It covers the interpretation of status codes and job details to diagnose failed jobs. The section also explains how to troubleshoot devices and media and how to validate connectivity between primary servers, media servers, and client systems. Candidates learn to address common problems in disaster recovery situations, including tasks related to recovering the NetBackup catalog.
Topic 2
  • Tune NetBackup: This section of the exam measures skills of system engineers and focuses on analyzing performance related factors in a NetBackup environment. It introduces performance assessment and optimization practices to help candidates identify bottlenecks and improve overall efficiency. Tuning NetBackup includes making adjustments that lead to more stable and faster backup and recovery operations.
Topic 3
  • Configure NetBackup: This section of the exam measures the skills of system administrators and focuses on the configuration tasks required to set up and manage a NetBackup environment. It covers the setup of primary, media, and client settings along with essential host properties, including the use of security certificates. The section explains how to configure disk storage, cloud storage, and storage unit groups to support stable backup operations. It also includes the configuration of standard and advanced backup policies and protection plans. Candidates are expected to understand specialized backup solutions such as synthetic backups, True Image Restore, multiple data streams, checkpoint restart, and different duplication methods that involve storage lifecycle policies, disk staging, and replication features.
Topic 4
  • Monitor and Maintain NetBackup: This section of the exam measures skills of operations personnel and focuses on the monitoring and maintenance tasks necessary to keep a NetBackup environment healthy. The topics include the core concepts of image management and the use of the NetBackup Administration Console to verify images, expire them, import backup data, and perform manual duplication. The section explains how to manage both disk and cloud storage within NetBackup and highlights the use of reports for verification and monitoring. It also covers administrative controls for running, cancelling, suspending, resuming, and prioritizing backup or duplication jobs. Candidates learn how to initiate and monitor restore operations and understand the security management features such as role based access control and host ID certificates.

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Cohesity Certified Protection Professional - NetBackup Appliances Sample Questions (Q183-Q188):

NEW QUESTION # 183
A NetBackup environment with a single tape storage unit is experiencing performance issues when running full backups of a Windows file server with over a million small files. Backups for all other clients on the same network are performing adequately.
What should the administrator modify to improve performance for the client?

Answer: A


NEW QUESTION # 184
A restore has failed with the following job details:
Error bptm ... error requesting media, TpErrno = Robot operation failed awaiting resource ... Pending Action: All drives down Which two resources should the administrator use to troubleshoot this issue? (Select two.)

Answer: D,E

Explanation:
The correct resources are the operating system logs and the robtest command. The failure is not a client file- read problem; it occurs when bptm requests tape media and the robot cannot complete the operation. Cohesity NetBackup documentation describes the tape workflow: bptm reserves drives and issues mount requests through the Media Manager and robotic daemons, which perform the physical media mount. When the job detail reports "Robot operation failed" and "All drives down," the fault domain is tape device access, robotic control, drive visibility, zoning, library state, or OS-level SCSI communication. Official troubleshooting guidance states that NetBackup uses OS-level commands and drivers for tape operations, and recommends starting at the OS and hardware layer and checking OS system/event logs. The robtest utility is also directly relevant because it issues basic SCSI commands to a robotic device attached to a NetBackup media server and can test drive status, slot status, move operations, and robot readiness. Options B, C, and D are less relevant:
bpbkar is a backup client read process, nbdevconfig is primarily disk-storage configuration, and bpmedia manages media records rather than robotic motion or drive connectivity.


NEW QUESTION # 185
An administrator needs to configure a backup for VMware clients with NetBackup Accelerator using a third- party OST storage. The clients are running Windows as the guest operating system.
Which step must the administrator perform to ensure a successful backup?

Answer: A

Explanation:
The required step is to verify that the third-party OST target supports Accelerator with VMware-type policies in the Hardware Compatibility List. Cohesity NetBackup documentation states that Accelerator for virtual machines uses VMware Changed Block Tracking (CBT) to identify changes inside the virtual machine, not the Windows NTFS or ReFS change journal. The same VMware Accelerator requirements topic lists supported disk storage destinations and includes qualified third-party OpenStorage devices, then specifically instructs administrators to verify Accelerator support for the storage unit in the NetBackup hardware compatibility list for supported OST vendors. It also warns that if the storage unit does not support Accelerator, the backup can fail with messages such as the storage server type not supporting accelerator backup. The HCL further identifies Accelerator with VMware-type policies as a distinct OpenStorage supported-functionality entry, meaning generic OST support is not sufficient; the vendor/device must support the VMware Accelerator capability. (Veritas Download) Option A applies to file-system Accelerator behavior for Windows clients, not VMware image-level backups. Option C is not mandatory for the first successful VMware backup. Option D is incorrect because VMware Accelerator does not require manually creating a client track log.


NEW QUESTION # 186
What is the minimum size of a file that can be deduplicated by NetBackup?

Answer: A


NEW QUESTION # 187
In which scenario is "Use Accelerator" unavailable in a backup policy?

Answer: A


NEW QUESTION # 188
......

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