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Question 1Bare Metal & VPS
On the OVHcloud order page for a dedicated server, which component determines the physical CPU model and core count of the machine you receive?
- The chosen server range and its configuration Correct answer.
- The DNS zone template
- The vRack bandwidth tier
- The public cloud project quota
Explanation
A dedicated server's CPU is fixed by the hardware range and configuration you select at order time; OVHcloud builds the machine to that specification. Cloud quotas, vRack settings and DNS templates are unrelated to the physical processor installed.
Question 2Bare Metal & VPS
Which OVHcloud product provides a single virtual machine with dedicated resources and full root access, positioned between shared hosting and dedicated bare metal?
- VPS Correct answer.
- Public cloud object storage
- Web hosting plan
- vRack
Explanation
A VPS is a virtualized server with guaranteed resources, root access and its own OS, sitting above shared web hosting but below dedicated bare metal. Web hosting shares an environment, object storage only stores data, and vRack is a private network fabric.
Question 3Bare Metal & VPS
You need to reinstall the operating system on an OVHcloud dedicated server. Where in the OVHcloud Control Panel do you start this operation?
- The billing section under payment methods
- The domain name's DNS zone editor
- The vRack configuration page
- The server's general information tab, using the reinstall action Correct answer.
Explanation
OS reinstalls are launched from the dedicated server's own management page in the Control Panel, where you pick a template and confirm the destructive action. Billing, DNS and vRack pages do not control the server's operating system.
Question 4Bare Metal & VPS
What is the primary purpose of OVHcloud's rescue mode on a dedicated server or VPS?
- To boot a temporary system for repairing a broken installation Correct answer.
- To encrypt the server's disk automatically
- To migrate the server to another datacentre
- To permanently upgrade the CPU
Explanation
Rescue mode boots the machine into a temporary rescue environment, typically over the network, so you can mount disks, fix boot problems or recover data. It does not change hardware, encrypt disks by itself, or relocate the server.
Question 5Bare Metal & VPS
Which statement correctly describes the OVHcloud vRack?
- It is a backup agent installed on servers
- It is a public CDN for static assets
- It is a private Layer 2 network that links eligible services across datacentres Correct answer.
- It is a billing consolidation tool
Explanation
The vRack is a private network that connects eligible OVHcloud services, including dedicated servers and VPS, as if they were on the same switch, even across sites. It is not a CDN, a backup agent or a billing feature.
Question 6Bare Metal & VPS
A VPS customer wants to know what happens to their data when they rebuild the VPS from a different distribution template.
- The disk is reinitialized and existing data is lost Correct answer.
- Only the kernel is replaced, data stays intact
- Data is moved to object storage
- Data is automatically copied to a new VPS
Explanation
Rebuilding a VPS with a different distribution reinstalls the system and reinitializes the disk, erasing existing content. Customers must back up data first; nothing is automatically preserved or migrated.
Question 7Bare Metal & VPS
Which OVHcloud interface is used to monitor the hardware health, including disk and temperature sensors, of a dedicated server?
- The email marketing console
- The public cloud CLI only
- The server's monitoring section in the Control Panel Correct answer.
- The DNS secondary server list
Explanation
Dedicated server hardware monitoring, including sensors and alerts, is displayed in the server's monitoring area of the Control Panel. Marketing consoles and DNS lists are unrelated, and monitoring is not restricted to a CLI.
Question 8Bare Metal & VPS
What does the OVHcloud SLA for dedicated server network availability typically guarantee?
- A committed monthly network uptime percentage with service credits Correct answer.
- Guaranteed CPU overclocking
- A fixed number of free reinstalls per year
- Unlimited disk replacement at no cost
Explanation
The dedicated server SLA commits to network availability and provides compensation credits if that target is missed. It does not promise free reinstalls, unlimited disk replacement or overclocking.
Question 9Bare Metal & VPS
A customer orders a dedicated server and wants to attach a block storage volume to it. Which statement is accurate for OVHcloud dedicated servers?
- Storage must be requested by support ticket only
- Dedicated servers cannot use any additional storage
- Block storage is only available with web hosting
- Additional storage can be added through eligible add-on services ordered alongside the server Correct answer.
Explanation
OVHcloud offers storage add-ons that can be ordered with or for a dedicated server, subject to range eligibility. It is false that no storage can be added, and block storage is not tied to web hosting.
Question 10Bare Metal & VPS
After installing a new OS on a dedicated server, you cannot reach it over SSH. Which action is the most appropriate first diagnostic step?
- Change the DNS TTL to zero
- Delete the vRack
- Immediately order a second server
- Boot rescue mode and inspect network configuration and logs Correct answer.
Explanation
Rescue mode lets you access the disk and logs to find why SSH is unreachable, such as a firewall or interface misconfiguration. Ordering new hardware, adjusting DNS or deleting networking does not diagnose the local problem.
Question 11Bare Metal & VPS
Which OVHcloud feature lets you apply a saved OS installation configuration, including partitioning and post-install scripts, to multiple dedicated servers?
- DNS secondary zones
- vRack private networks
- OS installation templates Correct answer.
- Object storage buckets
Explanation
Installation templates store partitioning, SSH keys and post-installation scripts so the same configuration can be reused across servers. DNS, vRack and object storage do not define OS installation behaviour.
Question 12Bare Metal & VPS
On a VPS, what is the effect of adding an additional IPv4 address through the Control Panel?
- The address is routed to the VPS and must be configured in the OS Correct answer.
- The VPS is automatically rebuilt
- The VPS moves to a new host
- The vRack is disabled
Explanation
Additional IP addresses are routed to the VPS, but you must configure them inside the operating system to be usable. Adding an IP does not rebuild the VPS, relocate it or disable the vRack.
Question 13Bare Metal & VPS
Which protocol and port are commonly used for OVHcloud's IPMI/KVM-over-IP access to a dedicated server?
- NTP on port 123
- A dedicated KVM interface reachable from the Control Panel Correct answer.
- FTP on port 21
- SMTP on port 25
Explanation
OVHcloud exposes remote console access through a KVM/IPMI interface launched from the Control Panel, giving out-of-band keyboard, video and mouse control. SMTP, NTP and FTP are ordinary network services and not remote console access.
Question 14Bare Metal & VPS
A dedicated server has two disks and you want them mirrored for redundancy during installation. Which configuration should you choose?
- RAID 1 Correct answer.
- JBOD
- RAID 5
- RAID 0
Explanation
RAID 1 mirrors data across two disks so one can fail without data loss. RAID 0 stripes without redundancy, RAID 5 needs at least three disks, and JBOD exposes disks individually without mirroring.
Question 15Bare Metal & VPS
What is the role of the OVHcloud reverse DNS (PTR) record for a dedicated server IP?
- It assigns a new IP to the server
- It maps the IP address back to a hostname for mail and logging Correct answer.
- It provisions the OS
- It encrypts traffic to the server
Explanation
Reverse DNS maps an IP to a hostname and is checked by many mail servers and used in logs. It does not encrypt traffic, change IP allocation or install software.
Question 16Bare Metal & VPS
Which statement best explains why a dedicated server may show higher performance than a VPS with similar nominal specifications?
- VPS instances always have slower network links
- Dedicated servers run a different TCP/IP stack
- VPS instances cannot use RAID
- Dedicated servers do not share CPU, RAM or disk with other customers Correct answer.
Explanation
A dedicated server's resources belong to a single customer, avoiding noisy-neighbour effects, while a VPS shares the physical host even when resources are guaranteed. Network speed and RAID support are not inherent differences, and the TCP/IP stack is standard.
Question 17Bare Metal & VPS
A customer wants their dedicated server to boot from the network to run a custom imaging tool. Which OVHcloud feature supports this?
- Creating a DNS A record
- Booting the server into rescue mode or a netboot image Correct answer.
- Enabling object storage
- Changing the reverse DNS
Explanation
OVHcloud allows booting into rescue mode or netboot images so the server can run external tools over the network. DNS and storage changes do not alter the boot process.
Question 18Bare Metal & VPS
Which OVHcloud VPS feature allows snapshotting the current state of the VPS for quick rollback?
- vRack private networks
- Secondary DNS
- VPS snapshots Correct answer.
- Object storage versioning
Explanation
VPS snapshots capture the current disk state so you can restore it later, useful before risky changes. vRack and DNS are networking features, and object storage versioning applies to stored objects, not the VPS system disk.
Question 19Bare Metal & VPS
When configuring a firewall on a dedicated server through OVHcloud's network firewall, what does the 'mitigation' behaviour refer to?
- Encrypting outbound traffic
- Redirecting traffic to another server
- Automatic filtering of attack traffic during detection Correct answer.
- Permanent blocking of all inbound ports
Explanation
Network mitigation automatically filters malicious traffic when an attack is detected, protecting the server while legitimate traffic continues. It does not block all ports, encrypt traffic or redirect it elsewhere.
Question 20Bare Metal & VPS
A dedicated server's disk is failing and the customer has RAID 1 configured. What is the recommended immediate action?
- Reinstall the OS on the same disk
- Disable RAID and continue
- Ignore it until both disks fail
- Replace the faulty disk and let the array rebuild Correct answer.
Explanation
With RAID 1, replacing the failed disk allows the array to rebuild from the healthy mirror, restoring redundancy. Reinstalling on the failing disk, disabling RAID or ignoring the fault all increase risk.
Question 21Bare Metal & VPS
A customer needs a dedicated server with GPU acceleration for inference workloads. Which OVHcloud range characteristic matters most when selecting the offer?
- The email mailbox quota
- The number of DNS zones included
- Presence of a GPU card in the server configuration Correct answer.
- The vRack VLAN count
Explanation
GPU workloads require a server configuration that includes a GPU card, which is the decisive hardware attribute. DNS zones, VLAN counts and mailbox quotas do not provide compute acceleration.
Question 22Bare Metal & VPS
You want to connect a dedicated server and a VPS privately without exposing traffic to the public internet. Which combination is required?
- A shared object storage bucket
- Both services with public IPs and a DNS record
- A single reverse DNS entry
- Both services in the same vRack with private IP addressing Correct answer.
Explanation
Private connectivity requires both services to be members of the same vRack and configured with private IP addresses in a common subnet. Public IPs, DNS, object storage or reverse DNS do not create a private link.
Question 23Bare Metal & VPS
A customer reports that after enabling a software firewall on a dedicated server, OVHcloud's out-of-band KVM console still works but SSH does not. What is the most likely explanation?
- KVM depends on the OS firewall rules
- The firewall blocks SSH while KVM uses a separate out-of-band path Correct answer.
- The reverse DNS record is missing
- SSH requires the vRack to be enabled
Explanation
KVM/IPMI operates out-of-band and is unaffected by the server's OS firewall, whereas SSH is an in-band service that the firewall can block. KVM does not depend on OS firewall rules, vRack or reverse DNS.
Question 24Bare Metal & VPS
A dedicated server is configured with a single disk and no RAID. The customer wants to add redundancy without reinstalling immediately. Which approach is most appropriate?
- Add a second disk and migrate to a RAID 1 configuration during a planned maintenance window Correct answer.
- Remove the disk and rely on snapshots
- Enable object storage versioning
- Switch to RAID 0 for speed
Explanation
Adding a second disk and migrating to RAID 1 during planned maintenance provides mirroring without an immediate reinstall. RAID 0 offers no redundancy, removing the disk loses data, and object storage versioning does not protect the system disk.
Question 25Bare Metal & VPS
Which OVHcloud capability allows automated provisioning of a dedicated server using an API rather than the Control Panel?
- The web hosting FTP manager
- The DNS zone import tool
- The email autoresponder
- The OVHcloud public API for dedicated servers Correct answer.
Explanation
OVHcloud exposes a public API that supports ordering, reinstalling and managing dedicated servers programmatically. DNS import, email autoresponders and FTP managers do not provision servers.
Question 26Bare Metal & VPS
On an OVHcloud VPS, which component is virtualized and shared among customers, meaning the customer does not get exclusive access to physical hardware?
- The SSH key pair stored for the VPS administrator
- The CPU, RAM and disk resources of the host machine Correct answer.
- The public IPv4 address assigned to the VPS
- The reverse DNS record configured for the VPS
Explanation
A VPS runs as a virtual machine on a shared hypervisor, so CPU time, memory and storage are allocated from a physical host used by several customers. The IP address, PTR record and SSH keys are logical configuration items tied to the VPS, not shared physical resources.
Question 27Bare Metal & VPS
A customer wants to install a custom ISO image on a dedicated OVHcloud server because the standard OS templates do not include their required distribution. Which OVHcloud capability is designed for this?
- Rebuild the server using the standard distribution templates only
- Boot the server from a custom ISO mounted through the Control Panel or API Correct answer.
- Change the reverse DNS of the server to point at the ISO
- Attach a block storage volume and install from it
Explanation
OVHcloud lets you boot a dedicated server from a custom ISO image, either by mounting it remotely or by booting from a URL, so you can run an installer that is not offered as a template. Standard templates cover only the distributions OVHcloud publishes, and DNS has no role in installation media.
Question 28Bare Metal & VPS
Which OVHcloud VPS option provides a scheduled, automated backup of the VPS that can be restored from the Control Panel?
- The automated backup option, which stores daily backups of the VPS Correct answer.
- The rescue mode, which boots a temporary recovery environment
- The additional IPv4 option, which duplicates the network configuration
- The snapshot feature, which captures a manual point-in-time state
Explanation
The automated backup option takes regular backups of the VPS and keeps them available for restore through the Control Panel. Snapshots are manual and overwrite a single saved state, while rescue mode and extra IPs do not create backups.
Question 29Bare Metal & VPS
A dedicated server is delivered with a hardware RAID controller. During OS installation the customer wants the two disks mirrored so that one disk can fail without data loss. Which RAID level should be selected?
- RAID 5
- RAID 1 Correct answer.
- RAID 10
- RAID 0
Explanation
RAID 1 mirrors identical data across two disks, so a single disk failure leaves a complete copy on the surviving disk. RAID 0 stripes without redundancy, RAID 5 needs at least three disks, and RAID 10 requires four disks to combine mirroring and striping.
Question 30Bare Metal & VPS
A customer's dedicated server must be reachable over SSH on a non-standard port, but the connection is being blocked before it reaches the server. Which OVHcloud-side element should be checked first?
- The reverse DNS record of the server IP
- The network firewall configured for the server in the OVHcloud Control Panel Correct answer.
- The local iptables rules on the server itself
- The RAID health status reported by the monitoring
Explanation
OVHcloud offers a network firewall that filters traffic before it reaches the server, so a rule set there can block a custom SSH port even when the server's own firewall allows it. Local iptables only matters once packets arrive, and DNS or RAID status do not filter traffic.
Question 31Bare Metal & VPS
Which OVHcloud feature allows a dedicated server to be powered on, powered off, or forced to reboot remotely even when the operating system is unresponsive?
- The out-of-band KVM/IPMI console and power controls in the Control Panel Correct answer.
- The reverse DNS management page
- The automated backup scheduler
- The snapshot restore function
Explanation
Dedicated servers expose out-of-band management through IPMI/KVM, which provides remote power control and console access independent of the installed OS. The other listed features operate at the DNS, storage or backup layer and cannot control power state.
Question 32Bare Metal & VPS
A customer wants to install an OVHcloud-provided OS template on a dedicated server and have the installation start automatically without manually booting an ISO. Which OVHcloud workflow accomplishes this?
- Convert the server to a VPS so templates apply automatically
- Mount a custom ISO and complete every step interactively
- Ask support to physically insert installation media
- Launch the OS installation from the Control Panel or API and let the server boot into the OVHcloud installation environment Correct answer.
Explanation
OVHcloud can reboot the server into its own installation environment and apply the selected template automatically, including partitioning choices. Manual ISO installation is the alternative when no template fits, and physical media or converting to a VPS are not viable paths.
Question 33Bare Metal & VPS
What is the primary purpose of rescue mode on an OVHcloud dedicated server?
- To permanently replace the installed operating system with a rescue distribution
- To disable the network firewall for maintenance windows
- To boot a temporary minimal environment for repairing the installed system or recovering data Correct answer.
- To increase the server's RAM and CPU allocation temporarily
Explanation
Rescue mode boots a lightweight environment over the network so an administrator can mount disks, repair boot problems or copy data when the normal OS will not start. It is temporary and does not change hardware resources or firewall settings.
Question 34Bare Metal & VPS
A customer needs a dedicated server with a guaranteed bandwidth commitment and asks how OVHcloud typically expresses the guaranteed outbound bandwidth on its dedicated ranges.
- As a shared pool divided equally among all customers on the same switch
- As an unlimited guarantee that is never shaped
- As a guaranteed minimum bandwidth with the possibility of burst up to the port speed Correct answer.
- As a per-gigabyte billing model with no committed rate
Explanation
OVHcloud dedicated offers usually state a guaranteed bandwidth level, with traffic able to burst above that level up to the limits of the network port. Billing is not per gigabyte on these offers, and bandwidth is not divided as a shared pool among customers.
Question 35Bare Metal & VPS
A customer wants to monitor whether a dedicated server's RAID array has degraded. Which OVHcloud-visible signal is most directly useful?
- The reverse DNS entries configured for the server IPs
- The OS template selected during the last installation
- The number of additional IPv4 addresses attached
- Hardware monitoring alerts and disk status shown for the server in the Control Panel Correct answer.
Explanation
OVHcloud exposes hardware monitoring that reports disk and RAID health and raises alerts when a member disk fails or the array degrades. DNS entries, IP counts and installation templates carry no information about disk state.
Question 36Bare Metal & VPS
A customer wants to run several isolated web projects on one OVHcloud VPS but keep each project's files and processes separate. Which approach best fits the VPS model?
- Create separate Linux user accounts or containers on the single VPS Correct answer.
- Order one VPS per project and link them with a private network
- Assign one additional IPv4 address per project
- Attach one block storage volume per project to the same VPS
Explanation
A VPS is a single virtual machine, so isolation between projects is achieved with OS-level mechanisms such as separate users, permissions or containers. Additional IPs or volumes change networking and storage but do not separate processes, and ordering multiple VPSs exceeds the stated goal of using one.
Question 37Bare Metal & VPS
When a dedicated server's IP is queried by a remote mail server for a PTR lookup, which OVHcloud configuration determines the returned hostname?
- The reverse DNS record set on the IP in the OVHcloud Control Panel or API Correct answer.
- The A record in the customer's DNS zone
- The SSH banner presented by the server
- The hostname configured in /etc/hosts on the server
Explanation
PTR records for OVHcloud-assigned IPs are managed on the IP itself through OVHcloud, not in the customer's forward DNS zone. An A record maps a name to an address, while /etc/hosts and SSH banners are local and never consulted by external resolvers.
Question 38Bare Metal & VPS
A customer wants to automate creating and reinstalling dedicated servers from their own provisioning pipeline. Which OVHcloud interface should they use?
- The KVM console typed commands during each boot
- Manual actions in the Control Panel performed by an operator
- Email requests sent to OVHcloud support for each server
- The OVHcloud public API with authenticated calls for server ordering and installation Correct answer.
Explanation
The OVHcloud public API exposes endpoints for ordering, configuring and reinstalling dedicated servers, which lets a pipeline drive provisioning without human interaction. Control Panel actions, support emails and manual KVM input all require an operator and cannot be scripted reliably.
Question 39Bare Metal & VPS
A customer's dedicated server shows a failed disk in a RAID 1 array but the system is still running. What is the most appropriate immediate action?
- Convert the array to RAID 0 to regain capacity
- Reinstall the operating system on the surviving disk immediately
- Identify the failed disk, replace it, and let the controller rebuild the mirror Correct answer.
- Ignore the alert until the second disk also fails
Explanation
With RAID 1 the surviving disk still holds a full copy, so the priority is to replace the failed member and allow the controller to rebuild redundancy. Reinstalling risks unnecessary downtime, RAID 0 removes protection, and waiting leaves the system with no redundancy.
Question 40Bare Metal & VPS
A customer wants a dedicated server to boot from an image hosted on a remote HTTP server in order to run a custom imaging tool. Which OVHcloud boot option supports this?
- Network boot from a custom ISO URL configured for the server Correct answer.
- PXE boot from the OVHcloud installation VLAN only
- Rescue mode using the OVHcloud rescue image
- Local disk boot using the installed OS
Explanation
OVHcloud allows a dedicated server to boot from a custom ISO supplied by URL, which is how customers run their own imaging or recovery tools without physical media. Local disk boot runs the installed OS, rescue mode uses OVHcloud's image, and the installation VLAN serves OVHcloud templates rather than arbitrary remote images.
Question 41Storage and Backup
In OVHcloud Object Storage (S3-compatible), what does a bucket represent?
- A block device that can be attached to an instance
- A single immutable object with versioned metadata
- A snapshot schedule applied to a volume
- A logical container that holds objects and defines their namespace Correct answer.
Explanation
Object Storage organizes data in buckets, and every object is stored inside exactly one bucket, with the bucket name forming part of the object's address. Buckets are the unit where access policy, region and storage class settings are applied.
Question 42Storage and Backup
Which OVHcloud Block Storage feature lets you create a point-in-time copy of a volume that can later be used to restore data?
- Bucket lifecycle rule
- Volume snapshot Correct answer.
- Replication stream
- Object versioning
Explanation
A volume snapshot captures the state of a Block Storage volume at a given moment and can be used to create a new volume or roll data back. Lifecycle rules, versioning and replication are Object Storage concepts, not Block Storage snapshot mechanisms.
Question 43Storage and Backup
What is the primary purpose of the OVHcloud Backup service for a Public Cloud instance?
- To protect instance data by creating restorable backups on a defined schedule Correct answer.
- To expose the instance's private network to the internet
- To convert the instance into a managed database
- To increase the CPU quota available to the instance
Explanation
The Backup service registers instances or volumes and produces backups that can be restored when data is lost or corrupted. It does not alter compute quotas, database engines or network exposure, which are handled by other features.
Question 44Storage and Backup
In OVHcloud Object Storage, which storage class is intended for data that is accessed frequently and must be available immediately?
- Cold
- Glacier
- Standard Correct answer.
- Archive
Explanation
The Standard class keeps objects immediately available for frequent access at higher storage cost. Archive and cold tiers trade retrieval latency and retrieval fees for lower storage cost, so they suit infrequently read data.
Question 45Storage and Backup
Which protocol is used to mount OVHcloud File Storage (NAS) shares on a Linux instance?
- iSCSI
- NFS Correct answer.
- FTP
- SMB
Explanation
OVHcloud File Storage exposes NFS shares that Linux clients mount directly over the network. SMB is the Windows-oriented alternative, iSCSI presents block devices rather than shared files, and FTP is a transfer protocol, not a mount protocol.
Question 46Storage and Backup
What does an Object Storage lifecycle rule with an expiration action do to matching objects?
- It encrypts the objects with a customer key
- It deletes the objects after the configured number of days Correct answer.
- It copies the objects to another region
- It increases the object's storage class to High Performance
Explanation
Expiration actions in lifecycle rules schedule deletion of objects once they reach the configured age, which helps control storage growth. Encryption, cross-region copying and class promotion are separate configurations that a lifecycle rule does not perform.
Question 47Storage and Backup
Which OVHcloud storage product is designed to provide shared file access to several instances at the same time?
- Block Storage
- Object Storage
- File Storage Correct answer.
- Local disk
Explanation
File Storage provides a shared NFS filesystem that multiple instances can mount concurrently. Block Storage volumes are attached to a single instance, Object Storage uses HTTP APIs rather than a filesystem, and local disk is tied to one server.
Question 48Storage and Backup
What is the main benefit of enabling versioning on an Object Storage bucket?
- Previous versions of an object are retained so overwrites and deletions can be recovered Correct answer.
- Objects are automatically compressed before upload
- Bucket access becomes public by default
- Objects are converted to block volumes
Explanation
With versioning enabled, each overwrite or delete creates a new version marker while earlier versions remain retrievable. This protects against accidental overwrites and deletions; it does not change compression, access defaults or storage type.
Question 49Storage and Backup
A team stores database files on a Block Storage volume attached to one instance. They want a consistent copy taken while the database is running. What should they do first?
- Convert the volume into an Object Storage bucket
- Disable the instance's security group
- Quiesce or flush the database so the snapshot captures consistent data Correct answer.
- Detach the volume and reformat it before snapshotting
Explanation
A volume snapshot captures the block state at that instant, so in-flight writes can leave the filesystem or database inconsistent. Flushing or briefly quiescing the database before taking the snapshot produces a recoverable copy.
Question 50Storage and Backup
An application uploads millions of small objects to Object Storage and reads them only during the first week. Which configuration best reduces long-term cost?
- Moving the objects to Block Storage after seven days
- Enabling versioning without any expiration
- A lifecycle rule that transitions objects to Archive after seven days Correct answer.
- A lifecycle rule that deletes the bucket after seven days
Explanation
Transitioning objects to a cheaper archival class after the active period lowers storage cost while retaining the data. Deleting the bucket would remove the data entirely, and versioning without expiration keeps extra copies that increase cost.