D-ISM-FN-23 EMC Dell Information Storage and Management Foundations 2023 Exam Free Practice Exam Questions (2025 Updated)

Erasure coding is a method of data protection in which data is divided into data and coding segments. In this case, the configuration has 12 data segments and 5 coding segments, allowing it to tolerate up to 5 simultaneous disk failures. The coding segments provide redundancy, enabling the reconstruction of data even if up to 5 disks fail.

References:

Dell EMC Education Services

RAID 6 Array: RAID 6 uses double parity for data protection, which means two disks' worth of capacity is used for parity information.

Capacity Calculation: In a RAID 6 array with four disks, each 200 GB, the usable data storage capacity is calculated as follows:Total Disk Capacity=4×200 GB=800 GBTotal Disk Capacity=4×200 GB=800 GBUsable Capacity=Total Disk Capacity−Parity Disk Capacity=800 GB−2×200 GB=400 GBUsable Capacity=Total Disk Capacity−Parity Disk Capacity=800 GB−2×200 GB=400 GB

References: Dell ISM V5 Course, Module on RAID Configurations and Data Protection.

WWN Zoning: WWN zoning uses the World Wide Name (WWN) of the devices to control access in a SAN environment.

Diagram Context: The "X" in the diagram represents the connection managed by WWN zoning, ensuring that only authorized devices can communicate through the Fibre Channel switch.

References: Dell ISM V5 Course, Module on Storage Networking and Zoning Techniques.

In the context of FCIP (Fibre Channel over IP) tunnel configurations, a VE_port (Virtual E_port) is used to create a virtual link between two switches over an IP network. This virtual link allows for the extension of Fibre Channel fabrics across geographically dispersed locations. The VE_port functions similarly to an E_port but operates over an IP network, enabling the transport of Fibre Channel frames over long distances.References: Dell Information Storage and Management V5, FCIP Tunnel Configuration,Dell Certification Resource

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.

RAID 6 is characterized by double parity, which means that it uses two parity blocks to protect against data loss. This double parity allows RAID 6 to tolerate the failure of two drives within the RAID array, making it more reliable than RAID 5, which only uses single parity.

References:

Dell EMC Information Storage and Management V5 documentation.

Dell Certification Overview

RAID 1 mirrors data, meaning it duplicates the data on two disks. Therefore, to provide 250 GB of usable storage, 500 GB of total storage is required (250 GB for the primary data and 250 GB for the mirrored copy). At a cost of $2 per GB, the chargeback amount is calculated as follows:Chargeback amount=500 GB×$2/GB=$1000Chargeback amount=500GB×$2/GB=$1000

References:

Dell EMC Education Services (https://education.dell.com/content/emc/en-us/home/certification-overview/find-exam/ismv41.html )

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Pre-integrated systems are vendor-provided solutions that combine compute, network, storage, and management functions as a single engineered solution. This approach is also known as a converged infrastructure or a hyper-converged infrastructure. The vendor provides pre-configured, pre-tested hardware and software components that work together seamlessly. The pre-integrated system reduces the complexity of building and deploying IT infrastructure, while also improving performance, scalability, and reliability. This approach is different from a DIY (do-it-yourself) approach, where an organization builds its infrastructure from individual components, and a DCaaS (Data Center as a Service) approach, where the organization outsources its entire data center to a third-party provider. Reference: Section 1.7 Converged Infrastructure, page 62.

During a Shared Technology Vulnerability threat, an attacker exploits the weaknesses of tools used to enable multi-tenancy. Multi-tenancy allows multiple customers to share the same applications or physical infrastructure while keeping their data isolated. However, if there are vulnerabilities in the tools that support this shared environment, attackers can exploit these weaknesses to gain unauthorized access to data or disrupt services.

References:

Dell EMC Information Storage and Management (ISM) v5, Security and Risk Management Module, particularly the discussion on multi-tenancy and shared technology vulnerabilities.

Operation management in the context of storage management ensures that services and service levels are delivered per Service Level Agreements (SLAs). It encompasses various processes that monitor, control, and manage the storage infrastructure's operations to ensure it meets the predefined service levels. This involves performance management, capacity management, and ensuring data availability and integrity. By continuously monitoring the system and taking proactive measures, operation management ensures that the storage environment adheres to the agreed SLAs, providing the required performance, availability, and capacity.

References: Dell Information Storage and Management V5 course material -Dell Education

Gateways are an essential component of an IoT architecture, providing the connection between user devices and the network. Gateways act as a bridge between the device layer and the cloud layer, enabling the remote monitoring and control of user devices. Gateways also provide security features such as data encryption and authentication, which helps protect user data. Additionally, gateways provide additional features, such as data aggregation and protocol conversion, which can help increase the efficiency of the overall IoT architecture.

In a software-defined networking (SDN) architecture, the control layer is responsible for establishing communication between the infrastructure layer (data plane) and the interface layer (application plane). The control layer abstracts the underlying network infrastructure and provides a centralized management interface to define and enforce network policies, ensuring that the network can be managed and programmed more efficiently.References:= Dell ISMv5 Course Module 10: Networking in Cloud Computing.

Deploying a VM storage migration solution allows for the movement of virtual machine data across different storage systems without downtime. This enables better utilization and management of storage capacity by balancing the load and freeing up space on the source system. It helps in optimizing storage resources and improves the overall efficiency of the data center.

References:

Dell EMC Information Storage and Management V5, Module: Virtualization and Cloud

Machine learning is a subfield of artificial intelligence that gives computers the ability to learn without explicitly being programmed [1]. It does this by applying an algorithm to large amounts of data in order to discover patterns and insights that can be used to inform decisions and predictions. This allows machines to learn from experience and make decisions in a way that mimics the human brain.

Deploying intelligent storage systems in the data center enables efficient and optimized storage and management of information. These systems leverage advanced technologies like AI and machine learning to automate data management tasks, improve resource utilization, and enhance data protection. This results in better performance, lowercosts, and improved reliability compared to traditional storage systems. Intelligent storage systems can also provide insights and analytics to help organizations make better decisions regarding their data.

References:

Dell EMC Information Storage and Management (ISM) v5, Module on Intelligent Storage Systems, covering benefits such as efficiency and optimization in data management.

A Scale-Out NAS system allows for the dynamic growth of the file system as new nodes are added to the NAS cluster. This means the storage capacity and performance can scale linearly with the addition of more nodes, providing flexibility and scalability that general-purpose file servers cannot match. Traditional file servers often face limitations in terms of scalability and performance as the workload increases.References:

Dell EMC Information Storage and Management V5, Module on NAS

Challenge Handshake Authentication Protocol (CHAP) is used to periodically verify the identity of a peer using a three-way handshake. This protocol is designed to provide more security than password-based authentication by using a shared secret code known only to the authenticating entities.

References:

Dell EMC Information Storage and Management V5 course material, Module on Security and Protection.

The Cisco MDS-9132T switch model supports NVMe over Fibre Channel (FC) in a 32Gb/s SAN fabric. NVMe (Non-Volatile Memory Express) is a protocol designed for SSDs to exploit the performance potential of flash technology and provides faster data access compared to traditional SCSI protocols. The MDS-9132T is optimized for modern data centers requiring high-performance storage connectivity.

References:

Dell EMC Information Storage and Management V5 course material, Module on Fibre Channel SAN.

Cisco MDS 9000 Series Multilayer Switches data sheet.

In Continuous Data Protection (CDP), the amount of journal space determines how far back in time the data can be recovered. The journal space stores all the changes made to the data over time, allowing recovery to any specific point within that timeframe. The larger the journal space, the more historical data it can hold, thus enabling recovery from further back in time.

References:

Dell Information Storage and Management V5 course materials, section on Continuous Data Protection (CDP)

Dell EMC documentation on CDP and journal management