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Signature-based IDPS uses a database that contains known attack patterns or signatures. Each signature is associated with a particular type of attack and the IDPS will look for those patterns in order to identify malicious activity. For example, if the signature in the database is associated with a buffer overflow attack, the IDPS will look for that particular pattern of attack in order to detect the attack.

The purpose of the policy engine in a data archiving environment is to automate the process of moving the appropriate data from primary storage into archive storage. It does this by monitoring data access patterns in primary storage and automatically moving the data that is least accessed into an archive storage device. This process allows for more efficient use of primary storage and also reduces storage costs.

Parity-based RAID protection uses fewer physical drives than mirroring to provide the same level of data protection. It does this by using error correction codes to detect and correct errors in the data. This allows for a much more efficient use of storage capacity, as it only requires the same amount of storage capacity as the actual data, rather than requiring twice the storage capacity as with mirroring. Additionally, parity RAID systems have the advantage of being able to recover from drive failures without having to wait for the data to be rewritten to the remaining drives, as is the case with mirroring.

Cloud tiering is a technology that automatically moves inactive or infrequently accessed data from high-performance primary storage to lower-cost secondary storage, such as cloud-based object storage. This process is based on policies that are defined by the IT administrator. Cloud tiering is a part of the secondary storage tier, which is typically used for storing inactive or infrequently accessed data that does not require the high performance or low latency of primary storage. The primary storage tier is used for storing active or frequently accessed data that requires high performance and low latency. The application tier is used for hosting applications and services, while the policy tier is used for defining and enforcing data management policies. Reference: Section 4.4 Secondary Storage Tier, page 239.

When an Ethernet frame is larger than the maximum transmission unit (MTU) of a link, it must be fragmented into smaller pieces, which are sent separately and reassembled at the receiver. This is known as IP packet segmentation. Fragmentation and reassembly of the IP packets can add significant latency and can cause performance issues for FCIP. In this scenario, the issue is specific to data replication, indicating that the issue is with the FCIP configuration or the replication application. The other options, B, C, and D, are unrelated to the issue.

MDM is a control that restricts access to an organization’s resources only to authorized mobile devices.

In your scenario, a full backup was performed on Sunday and incremental backups were performed on Monday, Tuesday and Wednesday. If files were accidentally deleted Thursday morning, you would need two backup copies to restore the files: the full backup from Sunday and the incremental backup from Wednesday. This is because the incremental backup from Wednesday would contain all the changes made since Sunday’s full backup.

A continuous data protection (CDP) is a system that backs up data on a computer system every time a change is made. CDP maintains a continuous journal of data changes and makes it possible to restore a system to any previous point in time.

An OSD storage system is an object-based storage system that stores data as objects rather than files or blocks1. An OSD storage system consists of OSD nodes that have two key services: metadata service and storage service1.

The metadata service is responsible for generating the object ID from the contents of a file1. The object ID is a unique identifier that represents the data and its attributes. The metadata service also maintains the mapping of the object IDs and the file system namespace1. The file system namespace is a logical structure that organizes files into directories and subdirectories.

The storage service manages a set of disks on which the user data is stored1. The storage service stores data as objects in physical OSD containers. Each OSD container has a unique address that corresponds to an object ID. The storage service also handles requests from clients to read or write data to or from objects.

This is an example of an image-based data protection method. With image-based data protection, a proxy server regularly takes Point-in-Time (PIT) snapshots of the virtual machine (VM) that is being protected. These snapshots are then stored in a secure location, allowing the user to quickly restore access to the VM in the event of a hardware failure. This type of data protection is effective for preserving the state of the VM, as well as any data stored on it, making it a reliable and secure way to protect data.