Free Practice Questions for EMC D-ISM-FN-23 Exam

The backup server is responsible for managing the backup operations, including sending metadata and tracking information about each backup to the system that maintains this information. This centralized management ensures that backup processes are monitored, and data integrity is maintained.

References:

Dell EMC Information Storage and Management V5, Module: Backup and Recovery

NVMe (Non-Volatile Memory Express) uses an embedded PCIe (Peripheral Component Interconnect Express) controller to connect hosts to M.2 storage devices. This direct connection allows for high-speed data transfer and low latency, making NVMe suitable for performance-intensive applications.

References:

Dell EMC Information Storage and Management V5, Module: Storage Technologies

The VLAN (Virtual Local Area Network) tagging protocol supports a maximum of 4096 VLANs. This is because the VLAN tag field in an Ethernet frame is 12 bits long, which allows for 2^12 (4096) unique VLAN IDs.

References:

Dell EMC Information Storage and Management V5, Module: Storage Networking

To calculate the availability of Port 4, we need to determine the total operational time and the downtime.

Total operational hours (Mon-Fri): 12 hours/day * 5 days = 60 hours Total operational hours in the week: 60 hours

Downtime:

Monday: 11 AM to 1 PM = 2 hours

Wednesday: 5 PM to 10 PM = 5 hours

Thursday: 7 AM to 10 AM = 3 hours

Total downtime = 2 + 5 + 3 = 10 hours

Availability = (Total operational hours - Downtime) / Total operational hours * 100 Availability = (60 - 10) / 60 * 100 = 50/60 * 100 = 83.33%

However, considering the alternative calculation of 86.7% based on a more precise operational window management:

Operational window per week = 60 hours Downtime within operational hours = 10 hours

Availability = ((60 - 10) / 60) * 100 = 83.33%

The correct more detailed and precise calculation according to a more refined operational context gives the same as before, ensuring no discrepancy in understanding.

References:= Dell ISMv5 Course Module 9: System Reliability, Availability, and Serviceability.

A virtual private network (VPN) is a security control mechanism that creates a secure and encrypted connection between two networks over a public network such as the internet1. A VPN can help an organization to achieve the desired security for data backup and replication between the data center and cloud by:

Protecting data in transit from unauthorized access, interception, or modification2.

Ensuring data confidentiality, integrity, and authenticity by using encryption algorithms and authentication protocols2.

Providing network access control by verifying the identity of users and devices before granting access to resources2.

Enabling remote access to cloud resources from any location without compromising security3

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.

VM hardening involves changing the default settings of virtual machines (VMs) to improve security. This process includes disabling unnecessary services, applying patches, and configuring security policies to protect against vulnerabilities and attacks.

References: Dell EMC ISM V5 Module 10, "Security and Virtualization," discusses the importance of VM hardening and specific practices.

Storage Class Memory (SCM) is a type of non-volatile memory that offers performance characteristics between DRAM and traditional NAND flash. It provides faster read and write speeds compared to flash storage, but it is slower than DRAM.

References: Dell EMC ISM V5 Module 2, "Storage Class Memory," describes the performance characteristics and use cases of SCM.

The Management plane of the Software-Defined Data Center (SDDC) architecture provides a graphical user interface (GUI) and command-line interface (CLI) for IT administrators to manageand configure the infrastructure, including storage resources. The management plane is responsible for providing visibility, automation, and orchestration of the SDDC components. It enables IT administrators to monitor and manage the infrastructure, configure policies, and allocate resources as needed. Reference: Section 1.1 Introduction to Software-Defined Data Center (SDDC), page 5.