COH285: Cohesity Certified Protection Professional - NetBackup and NetBackup Appliances › 65 questions. 105 minutes. 65% to pass. Four sections, appliances included. › Built on Cohesity's published topics: every section, every objective. › CLISH, Appliance Web Console, EEBs, MSDP partitions: the appliance half of the exam. › Why NWExam? 190+ scenario questions, timed mock exams, money-back guarantee. › Ready to test the appliance skills too? Start the NWExam COH285 practice exam. Prepared by NWExam • www.nwexam.com Table of Contents Click any section below to jump straight to it. 1 Exam Overview Page 2 2 Exam Sections and Weightings Page 3 3 Who the Exam Is Written For Page 5 4 Your Five-Step Route to Certification Page 5 5 Sample Questions Page 6 6 Answer Key Page 10 7 Where to Go Next Page 11 Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 2 Cohesity COH285 Certification Guide Protection Professional - NetBackup and NetBackup Appliances: Syllabus, Exam Details and Practice Questions This guide turns the COH285 blueprint into a study plan. Inside are all four exam sections with Cohesity's official weightings and every objective, a clear account of what COH285 adds over COH284, a five-step preparation route, and ten scenario-based sample questions with a full answer key. Inside this guide • The COH285 fact sheet: 65 questions, 105 minutes, 65% to pass, USD 200 • All four sections, from Monitor and Maintain (36%) to Tune (10%) • Every published objective, including the appliance-only ones • COH284 or COH285: which exam you should actually be sitting • A five-step route from the prep guide to a booked exam • Ten sample questions with an answer key Exam Overview COH285 is the exam behind Cohesity Certified Protection Professional - NetBackup and NetBackup Appliances. It covers everything the software-only exam does, then adds the appliance: administering it through the Appliance Shell Menu (CLISH) and the Appliance Web Console, applying updates and EEBs, monitoring and tuning it, and troubleshooting it as a device rather than only as a media server. The full COH285 syllabus is the reference this guide follows. Exam code COH285 Credential Cohesity Certified Protection Professional - NetBackup and NetBackup Appliances Certification track Cohesity Protection Professional Questions 65 Duration 105 minutes Passing score 65% Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 3 Exam fee USD 200 Delivery Third-party testing centre, onsite or remote Retake policy One attempt every 14 days Validity 2 years Exam Sections and Weightings Cohesity uses the same four sections and the same weights as the software-only exam: Monitor and Maintain 36%, Configure 31%, Troubleshoot 23%, Tune 10%. What changes is the content inside them. Every section carries at least one appliance objective, and with 65 questions rather than 60, those additions are where the extra questions live. Monitor and Maintain NetBackup and NetB... 36% Configure NetBackup and NetBackup Appl... 31% Troubleshoot NetBackup and NetBackup... 23% Tune NetBackup and NetBackup Applianc... 10% Official exam weightings. Monitor and Maintain NetBackup and NetBackup Appliances (36%) • Describe image management concepts and use the NetBackup Administration Console to verify, expire, import and manually duplicate backup images • Describe how to manage NetBackup disk and cloud storage • Interpret available reports to verify and monitor NetBackup • Describe how and when to prioritize, cancel, suspend, resume, restart, retry or manually run backup and duplication jobs • Describe how to initiate, prioritize and monitor NetBackup restore tasks • Describe how to manage NetBackup security, for example RBAC and host ID certificates • Describe how to install updates, for example VxUpdate • Describe how to configure, manage and use Anomaly Detection and Malware Detection Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 4 • Appliance: describe how to interact with NetBackup on appliances, manage appliances through CLISH and the Appliance Web Console, obtain and install appliance updates and EEBs, and monitor appliances Configure NetBackup and NetBackup Appliances (31%) • Describe how to configure primary, media and client settings and host properties, including security certificates • Describe how to configure disk storage, cloud storage and storage unit groups • Describe how to configure and use backup policies and protection plans • Explain how to implement specialized backup solutions: synthetic backups, True Image Restore (TIR), multiple data streams, checkpoint restart, and duplication solutions such as disk staging, Storage Lifecycle Policies, Auto Image Replication, Isolated Recovery Environment (IRE) and NetBackup Accelerator • Describe the deduplication options: media server and client-side deduplication, optimized duplication, KMS options, MSDP cloud storage, WORM storage, Universal Shares, Snapshot Manager and storage servers • Describe how to perform catalog backup configuration tasks • Appliance: describe how to configure appliances through CLISH and the Appliance Web Console Troubleshoot NetBackup and NetBackup Appliances (23%) • Interpret status codes and job details to diagnose and troubleshoot failed jobs • Troubleshoot devices and media, including connectivity between primary, media and client servers • Troubleshoot common issues related to NetBackup disaster recovery, including recovering the catalog • Appliance: troubleshoot basic NetBackup Appliance issues Tune NetBackup and NetBackup Appliances (10%) • Analyze, optimize and tune NetBackup • Appliance: analyze, optimize and tune appliances using CLISH and the Appliance Web Console COH284 or COH285? COH284 covers NetBackup as software. COH285 covers the same ground and adds the appliance. If your estate runs NetBackup Appliances - and especially if you administer them through CLISH or the Appliance Web Console, apply EEBs, or resize an MSDP partition - COH285 is the exam that matches the job. If you never touch the appliance hardware or its console, COH284 is the shorter paper. Both Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 5 are USD 200, 105 minutes and 65% to pass; COH285 simply asks five more questions and expects the appliance answers. Who the Exam Is Written For The audience is the same as the software exam - system administrators and engineers, architects, operations staff, NetBackup administrators, pre-sales and implementation consultants, and support engineers - with one difference that matters: the people sitting COH285 are expected to own appliances as well as the backup domain. That means knowing where a task belongs, because the exam repeatedly asks whether a problem is solved in NetBackup, in the Appliance Web Console, in CLISH, or out of band through IPMI. Cohesity recommends roughly nine months of hands-on NetBackup work before either exam, covering catalog backups, Storage Lifecycle Policies, deduplication, VxUpdate and restores. For COH285, add the appliance habits on top: applying updates and EEBs, reading appliance component health, working within hardened STIG settings, and managing MSDP capacity on the device itself. Your Five-Step Route to Certification A practical order of work, built around Cohesity's own recommendations. 1 Map the blueprint and mark the appliance objectives Read Cohesity's COH285 exam preparation guide and highlight every objective that names an appliance, CLISH or the Appliance Web Console. Those are the ones COH284 candidates can skip and you cannot. 2 Close the software gaps first Deduplication options, Storage Lifecycle Policies, catalog backup and recovery, and image management underpin the appliance questions too. Cohesity points at the NetBackup User Guide, Administrator Guides, release notes and Knowledge Base articles. 3 Live in CLISH and the Appliance Web Console Practise the tasks that only exist there: checking component health, applying an update or EEB, resizing an MSDP partition, reviewing hardened settings such as STIG session limits, and collecting appliance logs. Know which of these each interface can do. Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 6 4 Rehearse the decision, not just the fix Many questions describe a symptom and ask where to look next: NetBackup job details, appliance health, the Web Console, or IPMI out-of-band. Practise ruling out the layers that the evidence has already cleared. 5 Test yourself under exam conditions Work through the COH285 sample questions, then the full-length NWExam COH285 practice exam, and register through Cohesity's exam portal. At 65 questions and 65% to pass you can lose 22; the appliance questions are the cheapest marks to protect. Sample Questions These ten questions are scenario-based and noticeably more detailed than the software-only paper's: several describe evidence that has already ruled something out. They come from the NWExam COH285 sample questions page and are shown here in a different order. Q1. Overnight, every backup policy that does not name a storage unit or a storage unit group failed with status 2111. One policy completed normally; its schedule names a storage unit explicitly. Nothing was changed on the media servers, and the disk pools report ample free space. What is the most likely cause? a) The media servers lost host ID certificate trust with the primary server, leaving only one storage unit reachable. b) The disk pools filled during the window, so jobs that had not already reserved space were rejected. c) The storage units belong to a storage unit group in Failover mode whose first member was busy all night. d) The storage units in the domain are flagged On Demand Only, so a job that names none of them has no eligible destination. Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 7 Q2. Deduplicated backups on a NetBackup Appliance are failing because the appliance's MSDP partition is full. Unallocated capacity is still available on the appliance itself, and the administrator has been asked to give the deduplication pool more room. Which action addresses this, and where is it performed? a) Resize the appliance's MSDP partition from the Appliance Web Console, using the free capacity on the appliance b) Raise the storage unit's concurrent job limit in NetBackup so less data queues against the pool c) Add a second disk pool in the NetBackup web UI, then group its capacity with the MSDP pool in a storage unit group d) Expire older images from the image list in NetBackup until the deduplication pool reports free capacity on the MSDP partition Q3. NetBackup client software on roughly sixty clients at a remote site must be brought to a newer level during a scheduled window. Those clients back up through a media server at that site. The administrator wants the work driven centrally, with no interactive login to the individual clients. Which host is the VxUpdate deployment policy for this work created on and run from? a) The Appliance Web Console of the appliance acting as the site's media server, where that host is administered. b) Each client in turn, using a copy of the package staged locally on that client. c) The primary server, which owns the domain's policies and schedules the work. d) The media server at the remote site, since it is the host that moves the clients' backup data. Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 8 Q4. Backup jobs that write to one NetBackup Appliance media server have failed intermittently for two days. The appliance's own component health reports no fault, the appliance runs the same software level as the other appliances in the domain, and backups of the same clients to a different media server complete normally. What should the administrator do next? a) Change the Data Buffer defaults on the Manage > Host tab so the appliance's data path is stabilised b) Connect through the IPMI web interface (Veritas Remote Management) to inspect the appliance's state out of band c) Continue in NetBackup, reading the failing jobs' status details together with the storage unit behind them d) Open a hardware case for the appliance, since intermittent job failures on one appliance usually mean a failing component Q5. Following a suspected ransomware incident, an administrator must establish whether a stored backup image is safe to recover from before any restore is started. Which NetBackup capability examines the content of the stored image to answer that question? a) WORM storage b) An Isolated Recovery Environment (IRE) c) True Image Restore (TIR) d) Anomaly Detection e) Malware Detection Q6. To improve backup throughput on a media server, an administrator raised both the number of data buffers and the size of each buffer. Off-peak jobs, which run one or two at a time, behave normally. During the peak window, when many jobs write concurrently, the media server now runs short of memory and jobs begin to fail. What explains the behaviour appearing only at peak? a) The buffer change takes effect only after the media server's deduplication pool is rebuilt b) The larger buffers are allocated only once the storage unit reaches its concurrent job limit c) Buffer settings apply to restore operations, which the peak window runs alongside the backup jobs d) Buffer memory is allocated for each concurrent job stream, so the change scales with concurrency Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 9 Q7. A storage lifecycle policy backs up to a local disk pool and then duplicates each image to a second pool. This morning the administrator finds that every backup job from last night completed successfully, while several jobs that ran afterwards ended non-zero. The failing jobs are duplication jobs, and each of them names that storage lifecycle policy. What does the job type establish about this failure? a) The backup jobs reported success prematurely, so the clients must be backed up again before any copy can be trusted. b) The duplication jobs failed because the backup jobs still held the images open, and they will succeed at the next attempt. c) The primary copies exist and are usable; only the second copy is missing, so the investigation belongs to the duplication destination. d) Both the backup operation and the duplication operation failed, and the backup jobs' status will change when the run is reconciled. Q8. Long-term copies of MSDP-backed images are duplicated each month to a cloud target that was configured as its own cloud storage server with its own disk pool. The on-premises MSDP pool holds these images in about 40 TB, yet the cloud bucket has grown by close to the full front-end size with every monthly copy and now greatly exceeds that. Which change addresses the growth? a) Enable client-side deduplication for the clients whose images are being copied b) Raise SLP.MIN_SIZE_PER_REPLICATION_JOB above its 8 GB default so fewer, larger jobs run c) Run the monthly copies as optimized duplication to the cloud storage server d) Configure the cloud bucket as MSDP Cloud Storage on the existing MSDP storage server Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 10 Q9. STIG rules are enabled on a NetBackup Appliance. A tuning task an administrator has scripted opens sixteen concurrent SSH sessions to the appliance so that it can gather data from several components in parallel, and some of those sessions are refused. Which change lets the task complete while the appliance keeps its hardened posture? a) Collect the same data through the IPMI web interface, which is not subject to the session rules b) Rework the task to keep concurrent SSH sessions within the limit of ten that STIG enforces c) Disable the STIG rules for the duration of the task, then enable them again afterwards d) Raise the NetBackup job limit on the appliance so that more sessions may run concurrently Q10. A primary server has been rebuilt on replacement hardware after a site failure, and its catalog has been recovered from the most recent catalog backup. What has the administrator regained by completing the catalog recovery? a) A new full image for each client, assembled on the media server from images that already exist b) The domain's record of what was backed up, from which existing images are browsed and selected for restore c) A second copy of every image at the recovery site, produced from the copies held at the original site d) The most recent backup of each client, written back to the file systems and directories it came from Answer Key Q1 d Q2 a Q3 c Q4 c Q5 e Q6 d Q7 c Q8 d Q9 b Q10 b Two things these questions reward. First, read what the scenario has already eliminated: component health is clean, other media servers work, free space is ample. The answer is usually the layer that has not been ruled out. Second, keep the hardened posture and the documented procedure intact - the options that disable STIG, bypass the console or Cohesity COH285 NetBackup and NetBackup Appliances Certification Guide www.nwexam.com Prepared by NWExam Page 11 re-run good backups are consistently wrong. NWExam also carries practice material for the rest of the Cohesity certification track. Where to Go Next If you have come from the software side, put your remaining hours into the appliance: CLISH and Web Console tasks, updates and EEBs, MSDP capacity, and the hardened settings that quietly change what a script may do. For behaviour the documentation leaves open, the Cohesity Community is where administrators compare real NetBackup and appliance experience. When your practice scores clear 65% in every section, book the exam. COH285 at a Glance Exam COH285: NetBackup and NetBackup Appliances Format 65 questions in 105 minutes Pass mark 65% Fee USD 200, retake after 14 days Adds over COH284 Appliance administration: CLISH, Web Console, updates and EEBs Heaviest sections Monitor and Maintain 36%, Configure 31% Practice NWExam COH285 practice exam The appliance is not just another media server. The exam knows the difference, and so should you. Take a timed COH285 mock exam on NWExam