Cohesity COH-285 Practice Exam Questions & Answers
7 Free Questions
· Last reviewed: October 15, 2026
· Prepared & Reviewed by the ValidExamDumps Editorial Team
Exam Facts
Cohesity COH-285 Exam Details
Key details for this exam, checked against the published exam outline
265
Practice Questions (Our Bank)
105 minutes
Exam Duration
USD 200
Official Exam Fee
- Exam Code
- COH-285
- Full Name
- Cohesity Certified Protection Professional - NetBackup Appliances
- Issuing Body
- Cohesity Academy Certifications
- Question Format (Our Bank)
- Multiple Choice
- Delivery
- Online proctored or at a test centre
- Eligibility
- No prerequisite certifications required. Cohesity recommends 6 to 9 months of hands-on experience with NetBackup systems.
- Validity
- 2 years from date of passing
Practice Questions
Free COH-285 Practice Questions
Each question shows the correct answer and an explanation of why it is right
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Which command can an administrator run to test and analyze connections between master servers, media servers, and clients for multiple NetBackup ports?
Correct Answer:
D
Explanation
The bptestnetconn command is specifically designed for testing and analyzing network connectivity between NetBackup components. It checks multiple ports and connections between master servers, media servers, and clients. This falls under troubleshooting because you're diagnosing network issues that could affect backup operations. Other commands handle different functions like configuration or monitoring, not connection testing.
A NetBackup appliance is not reporting the correct amount of free space. What steps can be taken to troubleshoot the problem?
Correct Answer:
A
Explanation
When a NetBackup appliance reports incorrect free space, the first troubleshooting step is to check the appliance logs for errors. The logs will reveal what's happening at the system level, whether it's a calculation error, a failed process, or a storage-related issue. Checking logs is a systematic diagnostic approach that comes before trying fixes or recalculations.
Which interface can be accessed from the IPMI web interface or Cohesity Remote Management (VRM) interface?
Correct Answer:
A
Explanation
The NetBackup Appliance Shell Menu, or CLISH, is the command-line interface you can access through either IPMI or the Cohesity Remote Management interface. This is part of configuration because CLISH lets you configure appliance settings and parameters. It's the standard way to interact with the appliance at the system level when you need direct access to the shell.
An administrator wants to back up a large file system with millions of files using either the NetBackup Accelerator feature or the NetBackup FlashBackup feature.
Which consideration is irrelevant when determining which feature to be used?
Correct Answer:
B
Explanation
The irrelevant consideration is the file system folder depth. When selecting between NetBackup Accelerator and NetBackup FlashBackup for a file system containing millions of files, the key design factors are capacity, file-count/metadata handling, change processing, policy support, and file system/platform compatibility---not how deeply folders are nested. Cohesity documents that Accelerator performs an initial full backup and creates a track log, then identifies changed data by comparing track-log information against file-system information for each file; on NTFS/ReFS it can also use the Windows change journal. Cohesity also states that Accelerator track-log sizing is relative to file system size and number of backup files, with sizing formulas based on number of files and used disk space---not directory depth. FlashBackup is documented as combining raw-partition backup speed with individual file restore, and the FlashBackup/FlashBackup-Windows policy types are platform-specific, making the type of file system/client platform relevant. Storage capacity is also relevant because FlashBackup size reporting uses the mounted Windows disk volume or UNIX raw disk partition size. Reference/topics: Accelerator operation, track-log sizing, FlashBackup policy types, and large file-system backup planning.
Which command is used by VxUpdate to upgrade clients?
Correct Answer:
C
Explanation
The nbinstallcmd command is what VxUpdate uses when upgrading NetBackup clients. This command handles the actual installation and upgrade process across multiple clients. While VxUpdate provides the framework and scheduling for upgrades, nbinstallcmd is the underlying command that performs the work on each client system.
An administrator navigates to NetBackup Management > Catalog, and selects Action: Import. After clicking the Search Now button, the following message appears:
INF - Found no images matching the selection criteria that were ready for phase 2 import.
Which step must the administrator perform in order to get search results?
Correct Answer:
D
Explanation
When the Import search finds no images ready for phase 2, it means no images have completed phase 1. You must run the Initiate Import command first to process images and move them into phase 2 status. After that command completes, the Search Now button will find images that are actually ready to import. This is a sequencing issue where you need to follow the proper workflow steps.
What is the benefit of using the staging schedule option in the Change Storage Units dialog box in NetBackup?
Correct Answer:
A
Explanation
The staging schedule option lets you specify when backup images move between storage units. This is a configuration feature that gives you control over storage management. For example, you might move recent backups to fast disk storage and then stage older backups to slower or cloud storage based on a schedule you define. This improves both performance and cost efficiency.
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Domain 1: Configure NetBackup
31%
Configure primary, media, and client settings including security certificates. Set up disk storage, cloud storage, and storage unit groups. Use backup policies, protection plans, synthetic backups, True Image Restore, multiple data streams, checkpoint restart, and backup duplication solutions like disk staging and Storage Lifecycle Policies. Manage NetBackup deduplication options including media server deduplication, client-side deduplication, MSDP Cloud Storage, and WORM storage.
Sample questions from this domain above:
Q3Q5Q7
Domain 2: Monitor and Maintain NetBackup
36%
Manage image verification, expiration, import, and duplication using the NetBackup Administration Console. Monitor disk and cloud storage, interpret reports, and manage job operations including priority, cancellation, suspension, and restart. Initiate and monitor restore tasks. Manage security through RBAC and host ID certificates. Install updates and configure Anomaly Detection and Malware Detection.
Sample question from this domain above:
Q6
Domain 3: Tune NetBackup
10%
Analyze and optimize NetBackup performance by identifying bottlenecks and tuning configuration settings. Apply best practices for backup scheduling, resource allocation, and data stream management to enhance overall system efficiency and throughput.
Sample question from this domain above:
Q4
Domain 4: Troubleshoot NetBackup
23%
Interpret status codes and job details to diagnose failed jobs. Troubleshoot device and media connectivity issues between servers. Resolve disaster recovery issues including catalog recovery. Apply systematic troubleshooting approaches to identify root causes and implement solutions across the NetBackup environment.
Sample questions from this domain above:
Q1Q2
FAQ
COH-285 Exam FAQ
Common questions about the exam itself
What hands-on experience should I have before taking the COH-285 exam?
Cohesity recommends 6 to 9 months of hands-on experience working with NetBackup systems and performing backup and recovery operations. While no prior certification is required, familiarity with NetBackup administration, policy configuration, and job management is essential for success on this exam.
How hard is the COH-285 exam compared to associate-level Cohesity certifications?
COH-285 is positioned as a professional-level certification requiring intermediate to advanced knowledge of NetBackup architecture and operations. It assumes deeper technical expertise than associate-level exams and emphasizes practical troubleshooting and performance tuning alongside configuration skills.
Which objective area on COH-285 requires the most preparation time?
Monitor and Maintain NetBackup accounts for 36 percent of the exam and covers a broad range of operational tasks. Many candidates find job management, storage monitoring, and security administration challenging. Focus on understanding the NetBackup Administration Console thoroughly and practice with real job logs and reports.
How long should I realistically prepare for COH-285?
If you already have 6 to 9 months of NetBackup experience, plan for 4 to 6 weeks of focused study using Cohesity's official training materials and practice questions. Without hands-on experience, you should plan for 8 to 12 weeks and prioritize lab work with actual NetBackup appliances.
What happens on exam day for the COH-285 certification test?
The exam is 105 minutes long and delivered online by a third-party proctoring service. You will answer multiple-choice, drag-and-drop, and scenario-based questions covering configuration, monitoring, tuning, and troubleshooting. Preliminary results appear immediately after completion.
Can I retake the COH-285 exam if I fail?
Yes. You can attempt the exam again after 14 days have passed. There is no limit on total attempts, so you can retake it as many times as needed.
How long does my COH-285 certification stay valid?
Your certification remains valid for 2 years from the date you pass the exam. After 2 years, you must retake the exam to maintain your certification status.
What role does COH-285 prepare me for?
COH-285 is designed for data protection engineers, backup administrators, and NetBackup specialists who manage enterprise backup environments. It validates your ability to configure, maintain, and troubleshoot production NetBackup and NetBackup Appliances systems.
Does COH-285 require me to hold other Cohesity certifications first?
No prior certification is required to sit COH-285. However, holding Cohesity Protection Associate - DataProtect or Protection Associate - Multicloud certifications can strengthen your foundational knowledge and improve your readiness for this professional-level exam.
Where do I schedule and take the COH-285 exam?
You schedule and take the exam through Cohesity Academy's online portal. The exam is delivered by a third-party proctoring organization, so you can sit it online from a secure location with a webcam and stable internet connection.
