Working with Costs Analysis Tools: Note: There are two versions of the Cost Analysis tool: The Classic Version interface described below, and the Latest Version interface. When you log in to the Console and select Account Management and go to Cost Analysis, the Latest Version of the Cost Analysis tool is displayed by default. Click Switch to Classic Version if you prefer the Classic version of the tool. When switching from the Latest Version to Classic Version, any inputs you have made are not maintained. For more information on the Cost Analysis tools, see Cost Analysis Overview. To filter costs by datesOpen the navigation menu. Under Governance and Administration, go to Account Management and click Cost Analysis.In Start Date, select a date.In End Date, select a date (within six months of the start date).Click Apply Filters. To filter costs by tagsOpen the navigation menu. Under Governance and Administration, go to Account Management and click Cost Analysis.From Tag Key, select a tag.Click Apply Filters. To filter costs by compartmentsOpen the navigation menu. Under Governance and Administration, go to Account Management and click Cost Analysis.From Compartment, select a compartment.Click Apply Filters. References: https://docs.cloud.oracle.com/en-us/iaas/Content/GSG/Concepts/costs.htm
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ExplanationOracle Cloud Infrastructure File Storage service provides a durable, scalable, secure, enterprise-grade network file system. You can connect to a File Storage service filesystem from any bare metal, virtual machine, or container instance in your Virtual Cloud Network (VCN). You can also access a file system from outside the VCN using Oracle Cloud Infrastructure FastConnect and Internet Protocol security (IPSec) virtual private network (VPN).
Large Compute clusters of thousands of instances can use the File Storage service for high-performance shared storage. Storage provisioning is fully managed and automatic as your use scales from a single byte to exabytes without upfrontprovisioning.
The File Storage service supports the Network File System version 3.0 (NFSv3) protocol. The service supports the Network Lock Manager (NLM) protocol for file locking functionality.
Oracle Cloud Infrastructure File Storage employs 5-way replicated storage, located in different fault domains, to provide redundancy for resilient data protection. Data is protected with erasure encoding.
The File Storage service uses the "eventual overwrite" method of data eradication. Files are created in the filesystem with a unique encryption key. When you delete a single file, its associated encryption key is eradicated, making the file inaccessible. When you delete an entire file system, the file system is marked as inaccessible. The service systematically traverses deleted files and file systems, frees all the used space, and eradicates all residual files.
Use the File Storage service when your application or workload includes big data and analytics, media processing, or content management, and you require Portable Operating System Interface (POSIX)-compliant file system access semantics and concurrently accessible storage. The File Storage service is designed to meet the needs of applications and users that need an enterprise file system across a wide range ofuse cases, including the following:

Reference: https://www.oracle.com/cloud/networking/virtual-cloud-network-faq.html#category- general

Reference: https://docs.oracle.com/en-us/iaas/Content/Identity/Tasks/usingmfa.htm#ariaid-title3