Free EMC D-ISM-FN-23 Practice Exam with Questions & Answers

Information availability in a modern data center environment is defined by three key parameters: Reliability, Accessibility, and Timeliness.

• Reliability refers to the system's ability to function correctly and consistently over time.
• Accessibility ensures that the data is available when needed.
• Timeliness means the data can be retrieved and used within the required time frame.

References:

• Dell Information Storage and Management V5 course materials, section on information availability
• Dell EMC documentation on data center information availability

In a RAID 1 array, data is mirrored across two disks. So when a host sends one write I/O to the array, the array will perform two write I/Os to store the data on both disks. The other options are incorrect because they do not accurately reflect the number of write I/Os required in a RAID 1 array.

A software-defined data center (SDDC) is an architecture that extends virtualization concepts such as abstraction, pooling, and automation to all of the data center's resources and services. In an SDDC, IT resource components like computing, networking, storage, and security are all virtualized, except for the commodity hardware used to create resource pools. This virtualized environment enables more efficient resource management and scalability.

References:

• Dell EMC Information Storage and Management V5 documentation.
• Dell Certification Overview

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.

A Denial of Service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet. DoS attacks typically flood a network with excessive requests, overwhelming the network and preventing legitimate users from accessing IT resources or services. This type of attack does not compromise user accounts, hijack privileges, or duplicate user credentials, but it does effectively deny service to legitimate users.

References:

• Dell EMC Information Storage and Management V5 documentation.
• Dell Certification Overview

Scale-out NAS (Network-Attached Storage) systems allow for the horizontal scaling of storage resources by adding more nodes to the storage cluster. Each node contributes additional processing power, storage capacity, and network bandwidth, thereby improving overallperformance and capacity. This architecture provides a flexible and scalable solution to accommodate growing data storage needs.References: Dell Information Storage and Management V5 documents, ExamTopics.

A capacity planning report for storage infrastructure provides current and historical information about the utilization of storage, file systems, and ports. This information is crucial for understanding storage consumption patterns, predicting future storage needs, and ensuring that storage resources are efficiently allocated and utilized. It helps in making informed decisions about storage upgrades and expansions.

References:

• Dell Information Storage and Management V5 course materials, section on capacity planning
• Dell EMC documentation on storage capacity planning

Virtual LANs (VLANs) are used to segment a physical LAN into multiple logical LANs. This allows multiple networks to share a single physical LAN while maintaining the logical separation between the networks. Each VLAN is assigned a unique identifier and each network device is configured with the identifier of the VLAN it belongs to. This allows traffic from different VLANs to be identified and routed accordingly. VLANs provide an additional layer of security by ensuring that devices on one VLAN cannot access the traffic of another VLAN.