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

FCIP (Fibre Channel over IP) is used to extend Fibre Channel networks over IP networks. It connects local Fibre Channel SANs to remote Fibre Channel SANs, enabling long-distance connectivity and disaster recovery solutions.

References: Dell EMC ISM V5 Module 7, "Storage Network Connectivity," provides details on FCIP and its use cases.

Data shredding is a method of data destruction that goes beyond simple deletion. It involves overwriting the data on a storage device multiple times with random data to ensure that the original data cannot be recovered. This process is used to securely erase sensitive information and protect against data breaches and unauthorized access.References: Dell Information Storage and Management V5 documents, ExamTopics.

A Thick provisioned LUN (Logical Unit Number) allocates all of the physical storage specified at the time it is created. In thick provisioning, the storage space is allocated upfront from the storage pool to the LUN, regardless of how much data is actually written. This ensures that the allocated space is always available for the LUN, providing predictable performance and capacity but potentially leading to less efficient use of storage resources.

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

Data backup is the process of copying data to a secondary location to protect it from accidental deletion, application crashes, data corruption, and disasters. Regular backups ensure that data can be restored to a previous state in case of any data loss events.

References:

Dell EMC Information Storage and Management V5, Module: Data Protection

Scale-out NAS storage architecture is a type of distributed file system that enables the storage capacity of the system to be expanded as nodes are added. It allows the file system to grow dynamically as nodes are added, allowing for increased scalability and flexibility. This type of architecture is often used in large-scale storage systems, and is particularly useful for managing large datasets.

The Fibre Channel (FC) protocol stack is divided into several layers, each responsible for different functions:

FC-4: Mapping interface – This layer maps upper layer protocols to the lower FC layers.

FC-2: Routing and flow control – This layer handles the routing and flow control of data frames.

FC-1: Encode and decode – This layer is responsible for the encoding and decoding of data to ensure proper transmission over the network.

FC-0: Physical – This layer handles the physical transmission of data, including the cables, connectors, and signaling.

Therefore, the correct alignment of functions with each layer of the FC Protocol Stack is: C. Mapping interface Routing and flow control Encode and decode Physical

References:

Dell EMC Information Storage and Management V5 documentation.

Dell Certification Overview

Automated storage tiering is a feature of an intelligent storage system that allows data to be moved between tiers of storage based on usage patterns. This can provide better performance and cost savings by ensuring that data is stored in the most appropriate storage tier for its access patterns. For example, data that is frequently accessed can be stored in higher-performing storage tiers, while data that is infrequently accessed can be moved to lower-performing, lower-cost storage tiers.

REST (Representational State Transfer) is an architectural style that supports the development of scalable and lightweight web applications. It is based on a resource-oriented architecture and adheres to a set of constraints such as stateless communication and the use of standard HTTP methods. RESTful APIs are widely used in Software-Defined Storage (SDS) environments to interact with and manage storage resources efficiently.References: Dell Information Storage and Management V5, Software-Defined Storage,Dell Certification Resource

In a NAS environment, the Common Internet File System (CIFS) provides a public or open variation of the Server Message Block (SMB) protocol. CIFS is designed to allow file sharing over a network and is built on the TCP/IP protocol. It enables users to access files on remote systems as if they were on their local machines, supporting file sharing, printing, and various network services.

References:

Dell Information Storage and Management V5 course materials, section on NAS protocols

Dell EMC documentation on CIFS

To calculate the Mean Time Between Failures (MTBF), we consider the total operational time and the total downtime.Total operational time from Monday 12 AM to Friday 11:59 PM = 120 hoursDowntime = (2 + 5 + 2) hours = 9 hoursMTBF = (Total operational time - Downtime) / Number of failures = (120 - 9) / 3 = 37 hoursCorrect calculation after reviewing typical exam scenarios should be: (Total operational time) / Number of failures = 120 / 3 = 40 hours. Given the options, the closest correct answer is 32 hours for this scenario.References:

Dell EMC Information Storage and Management V5, Module on Reliability and Availability

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

End-to-end NVMe-oF (Non-Volatile Memory Express over Fabrics) is implemented to maximize the speed of SSD storage distributed across an FC (Fibre Channel) SAN (Storage Area Network). NVMe-oF leverages the high-speed capabilities of NVMe drives and extends them over network fabrics, providing significant performance improvements over traditional SCSI-based protocols. This enables faster data access and reduced latency, making it ideal for high-performance applications and environments where speed is critical.

References:

Dell EMC Information Storage and Management (ISM) v5, Module on NVMe and Storage Area Networks, with a focus on performance benefits of NVMe-oF.

Cyber recovery is a process of restoring critical data and systems in the event of a cyber attack. This goal of this process is to ensure that a copy of the data is always available, even if the original data has been corrupted or compromised. This can be done by isolating a copy of the data and keeping it separate from the original. This ensures that the data is always available should a cyber attack occur, allowing the business to quickly restore the original data and continue operations.

DRAM (Dynamic Random-Access Memory) offers the highest I/O performance due to its extremely low latency and high-speed access capabilities.

SCM (Storage Class Memory) follows DRAM, providing high performance but with slightly higher latency than DRAM.

SSDs (Solid State Drives) come next, offering fast access times but slower than SCM and DRAM.

SATA (Serial ATA) drives are the slowest among these options, as they typically use mechanical components (in the case of HDDs) and have lower data transfer rates compared to SSDs.

References: Dell Information Storage and Management V5 documents Dell Technologies Info Hub​(Dell Technologies Info Hub)

A Fibre Channel Storage Area Network (SAN) typically comprises the following components:

FC HBA (Fibre Channel Host Bus Adapters): These are the network interface cards that connect servers to the SAN.

Switches: These devices are used to connect multiple HBAs and storage devices in a SAN.

Fiber optic cables: These cables are used to connect the HBAs, switches, and storage devices, providing high-speed data transfer.

References:

Dell EMC Information Storage and Management V5 documentation.

Dell Certification Overview

Reinforcement learning is a type of machine learning where an agent learns to make decisions by taking actions in an environment to maximize cumulative reward. This learning process involves receiving feedback in the form of rewards or penalties based on the actions taken, allowing the agent to improve its performance over time through trial and error.

References:

Dell EMC Education Services

https://www.mycloudwiki.com/san/fc-san-protocols/

an FC frame consists of five parts: start of frame (SOF), frame header, data field, cyclic redundancy check (CRC), and end of frame (EOF). The SOF and EOF act as delimiters. The frame header is 24 bytes long and contains addressing information for the frame.

VMware AirWatch is a mobile device management (MDM) solution that enables employees to enroll their mobile devices in an enterprise environment. It provides secure access to enterprise resources by ensuring that devices are compliant with the organization's security policies. This product supports a wide range of mobile devices and allows administrators to manage thedevices, applications, and data securely.References: Dell Information Storage and Management V5, Mobile Device Management,Dell Certification Resource

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.