EMC D-ISM-FN-23 Dell Information Storage and Management Foundations 2023 Exam Exam Practice Test

Using an existing Ethernet network infrastructure for storage connectivity reduces the overall cost of the network infrastructure. Ethernet networks are widely used and understood, making them cost-effective solutions for integrating storage connectivity without the need for specialized hardware. This approach leverages the existing network infrastructure, thus saving costs associated with deploying and maintaining separate storage networks.

References:

• Dell Information Storage and Management V5 course materials, section on Ethernet and storage networks
• Dell EMC documentation on Ethernet storage solutions

• Storage Class Memory (SCM): SCM is a new class of storage that bridges the gap between traditional volatile memory (DRAM) and non-volatile storage (flash).
• Addressing Level: SCM can be addressed at finer granularity, such as the bit or word level, unlike traditional storage which typically addresses data at the block level.
• Speed and Performance: SCM is faster than traditional flash storage but not as fast as DRAM. It provides a balance of speed and non-volatility which is beneficial for certain applications.

References: Dell ISM V5 Course, Module on Emerging Storage Technologies.

A Defense-in-depth strategy involves multiple layers of security controls to protect data and IT resources. By having various defense mechanisms, the risk of a security breach is minimized, as compromising one layer does not compromise the entire system. This layered approach significantly reduces the overall risk and impact of potential security threats.

References:

• Dell EMC Information Storage and Management V5, Module: Security in Storage

Solid State Drives (SSDs) use flash memory to provide non-volatile data storage. Flash memory is a type of non-volatile memory that can be electronically erased and reprogrammed. Unlike RAM, flash memory retains data even when the power is turned off, making it ideal for permanent storage in SSDs. The primary types of flash memory used in SSDs are NAND flash, which is cost-effective and has high storage density, and NOR flash, which offers faster read speeds but is more expensive.

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

• Deduplication is a process used to eliminate duplicate copies of repeating data.
• The exhibit shows a reduction in the number of shapes, indicating that duplicate data has been removed.
• Replication, archiving, and migration do not specifically involve the elimination of duplicates but rather involve copying, storing, or moving data.

References: Dell Information Storage and Management V5 documents

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

Virtual provisioning is a storage management technique that enables more efficient allocation of storage to compute systems. It allows storage administrators to create virtual storage resources that are presented to compute systems as if they were physical resources, even if the physical storage capacity does not exist. Virtual provisioning supports various types of virtual storage, including thin LUNs and thin clones. Thin LUNs enable shared and rapid expansion with only minor disruptions. Multiple shared storage pools can be created, and each pool can be allocated to multiple thin LUNs. However, virtual provisioning does not prevent issues that arise from oversubscription; it is important to monitor and manage capacity utilization to avoid performance degradation or service disruptions. Reference: Section 2.5.1 Virtual Provisioning, page 107.

Differential backups are more efficient than incremental backups because, instead of backing up only the changes made since the last backup, they back up all of the data that has changed since the last full backup. This means that, unlike incremental backups, the size of the differential backup is not limited and can expand to contain more data than an incremental backup. Additionally, differential backups are faster to restore since they only need to read the differential backup and last full backup, rather than all of the incremental backups.

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.

In Fibre Channel networks, an E_port (Expansion port) is used to connect two FC switches. The "X" in the exhibit indicates a connection between two FC switches, representing an E_port, which allows the creation of larger fabrics by linking multiple switches.

References: Dell EMC ISM V5 Module 4, "Fibre Channel SAN," details the different types of FC ports and their functions.

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.

Problem management focuses on identifying and addressing the root causes of incidents to prevent their recurrence. It also aims to minimize the impact of incidents that cannot be prevented by implementing temporary workarounds and permanent solutions. This management function helps improve overall IT service quality and reduces downtime by proactively managing problems.

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.

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.

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

• Multi-Site Remote Replication Solution: This type of solution is implemented to provide redundancy and high availability by replicating data across multiple geographic locations.
• Importance: The primary goal is to ensure that data protection is not compromised in the event of a single site failure, which can be due to various reasons like natural disasters, power outages, or other catastrophic events.
• Data Protection: By having multiple sites, data remains accessible and protected even if one site becomes non-operational, thus ensuring business continuity and disaster recovery.

References: Dell ISM V5 Course, Module on Remote Replication and Data Protection Strategies.

The backup policy requires full backups to be performed every Sunday at 9 PM and incremental backups at 9 PM on the remaining days. If files are deleted on Thursday morning, the most recent full backup would be from Sunday, and the incremental backups would be from Monday, Tuesday, and Wednesday. To restore the files, you would need:

• The full backup from Sunday
• The incremental backup from Monday
• The incremental backup from Tuesday
• The incremental backup from Wednesday

So, three backup copies are required: the full backup and the incremental backups from the last three days.

References:

• Dell EMC Information Storage and Management (ISM) Version 5.0, Chapter on Backup and Recovery

According to 1, cloud service models are categories of services that cloud providers offer to users and businesses. The three cloud service models are:

• Software as a Service (SaaS): The provider delivers software applications over the internet that users can access via web browsers or mobile apps. Examples: Gmail, Salesforce, Netflix.
• Infrastructure as a Service (IaaS): The provider offers computing resources such as servers, storage, networks and virtual machines that users can rent and manage via a web portal or an API. Examples: Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP).
• Platform as a Service (PaaS): The provider offers a web-based environment where developers can build cloud applications using a database, operating system and programming language provided by the provider. Examples: Heroku, Google App Engine, AWS Elastic Beanstalk.

Based on these definitions12, the cloud service model that provides compute, network and storage resources through self-service portal is Infrastructure as a Service(IaaS)34. This is because IaaS allows users to rent and manage computing resources via a web portal or an API without having to maintain the underlying elements2.

The Transport layer (Layer 4) of the OSI reference model provides logical end-to-end connections, sequencing, and data integrity. This layer is responsible for delivering data across network connections, ensuring that the data is transferred accurately and reliably. It handles error correction, data flow control, and retransmission of lost or corrupted data packets. Examples of protocols operating at this layer include TCP (Transmission Control Protocol) and UDP (User Datagram Protocol).References:= Dell Information Storage and Management V5 course materials

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.

In a full mesh topology, every switch is connected to every other switch, providing multiple paths for redundancy and performance. This setup is ideal for meeting performance requirements and ensuring that there is always a path available even if one link fails, fulfilling the need for redundant ISLs.

References:

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

an interface is a logical connection that enables data transfer between devices. There are different types of interfaces that can connect SSD drives to the storage array controller, such as SATA, SAS, PCIe, and NVMe.

One of the types of interface that can connect SSD drives to the storage array controller is NVMe1. NVMe stands for Non-Volatile Memory Express and it is a protocol that enables high-performance communication between SSDs and PCIe bus. NVMe reduces latency and increases throughput by using multiple parallel queues and direct memory access.

• 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.

The orchestration layer in a modern data center architecture is responsible for the automated arrangement, coordination, and management of resource provisioning. It uses predefined workflows to ensure that resources are provisioned and managed efficiently, allowing for automated updates and management across the data center.

References:

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

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.

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.

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

The "variability" characteristic of big data refers to the changing and often unpredictable nature of the data and its context. Variability highlights the need for systems to adapt and understand the context in which the data is used to extract meaningful information. This is crucial for making accurate and timely decisions based on data that can vary greatly in form and meaning depending on the situation.References: Dell Information Storage and Management V5, Big Data Characteristics,Dell Certification Resource

Cache tiering automatically allocates a large capacity secondary cache using Solid State Drives (SSDs) and Storage Class Memory (SCM). This method optimizes storage performance by dynamically assigning frequently accessed data to faster storage tiers, such as SSDs and SCM, while less frequently accessed data remains on slower storage tiers.

References:

• Dell EMC Information Storage and Management V5, Module: Storage Systems

Dell EMC Data Domain is a disk-based backup and recovery solution that incorporates inherent source-based deduplication technology. This deduplication reduces the amount of data that needs to be stored by eliminating duplicate copies of repeating data, thus improving storage efficiency and reducing costs. Data Domain systems are designed to provide reliable and high-performance backup and recovery services.References: Dell Information Storage and Management V5, Backup and Recovery Solutions,Dell Certification Resource

FCIP (Fibre Channel over IP) is utilized to interconnect Fibre Channel SANs over long distances. This technology encapsulates Fibre Channel frames into IP packets, allowing them to be transmitted over IP networks. It is particularly useful for interconnecting local and remote FC SANs over distances greater than 200 km, providing a cost-effective solution for SAN extension.References:

• Dell EMC Information Storage and Management V5, Module on SAN and FCIP

Supervised Learning is a type of machine learning that explicitly requires splitting the data into training and testing datasets before running an algorithm against that data. In supervised learning, the algorithm is trained on a labeled dataset, which means that each training example is paired with an output label. The model learns from this labeled data and makes predictions or decisions based on the input data. The testing dataset, which is separate from the training dataset, is used to evaluate the model's performance and ensure it generalizes well to new, unseen data.

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

Continuous Data Protection (CDP) is a data protection method that continuously captures or tracks data modifications and stores changes independently of the primary data. A CDP appliance works by intercepting all writes to the production volume. It splits each write operation into two copies: one copy is written to the production volume, and the other is sent to a separate storage location where the changes are logged. This enables recovery to any point in time and helps ensure data integrity.

References:

• Dell Information Storage and Management V5 course materials, section on CDP
• Dell EMC documentation on Continuous Data Protection

Archive is a type of data protection that is used to move primary data to lower cost storage and helps to enforce compliance requirements. It is a process of moving inactive data that is no longer needed for immediate use to a secondary storage medium. Archive uses data compression and deduplication techniques to reduce storage costs, and can also be used to help meet compliance requirements.

• The exhibit shows a sequence where a read request is made, data is not found in the cache, and then data is read from storage and copied to the cache.
• This describes a read miss scenario, where the requested data is not in the cache, prompting a retrieval from storage.

References: Dell Information Storage and Management V5 documents

An incident in a storage infrastructure refers to any unplanned interruption or reduction in the quality of an IT service, where the root cause is unknown. These disruptions can affect the performance, availability, or reliability of storage systems, and identifying the root cause is crucial for resolution and prevention of future incidents.

References:

• Dell EMC Information Storage and Management V5, Module: Incident Management

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

Target-based deduplication is a method where the deduplication process occurs at the target storage device. This method is commonly used by cloud service providers because it reduces the amount of data transferred over the network by eliminating redundant data before it is stored. This approach improves storage efficiency and reduces costs.References:= Dell Information Storage and Management V5 course materials

According to 1, a remote data protection and recovery solution is a solution that enables data backup and recovery across geographically dispersed locations. It can be implemented using various technologies such as remote replication, cloud backup, and backup appliances.

One of the key benefits for deploying a remote data protection and recovery solution in a data center environment is that it maximizes application and information availability1. This means that it ensures that critical applications and data are always accessible and recoverable in case of any disaster or disruption. A remote data protection and recovery solution can also provide other benefits such as reducing costs, improving security, and simplifying management.

A Demilitarized Zone (DMZ) is a physical or logical subnetwork that contains and exposes an organization's external-facing services to a larger, untrusted network, typically the Internet. The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN); an external attacker only has access to equipment in the DMZ, rather than any other part of the network. This mechanism secures internal assets while allowing Internet-based access to selected resources.

References:

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

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.

The backup server is the component that maintains the catalog containing details about the backups that have occurred. The catalog is a database that stores information about the backup jobs, such as the date, time, and type of backup that occurred, as well as the files that were backed up. The catalog also stores other information, such as the status of the backup jobs, as well as the type of data that was backed up. The backup server is responsible for managing the catalog and ensuring that the details stored in the catalog are accurate.

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

Local replication is a technique that replicates data within the same array or the same data center1. Local replication can enable operational recovery in the event of data lossby providing fast and frequent point-in-time copies of data that can be used for restore and restart operations23.

Enables operational recovery in the event of a site-level disaster is not a benefit of performing local replication. Local replication does not protect data from site-level disasters because it replicates data within the same site1. To protect data from site-level disasters, remote replication is needed to replicate data at a remote site2.

Provides disaster recovery as a service offering is not a benefit of performing local replication. Disaster recovery as a service (DRaaS) is a cloud-based service that provides backup and recovery capabilities for an organization’s data and applications4. DRaaS typically uses remote replication to store data in cloud storage locations that are geographically dispersed4.

Reduces the time to perform data backups is not a benefit of performing local replication. Data backups are different from data replication because they create secondary copies of data that are stored separately from primary copies and can be retained for longer periods5. Data backups may use local or remote replication as part of their process, but they also involve other steps such as deduplication, compression, encryption and verificatio

Upon receiving a service provisioning or management request, orchestrated operations trigger the appropriate workflow. Orchestration involves automating the arrangement, coordination, and management of complex computer systems, middleware, and services. It ensures that the necessary resources are provisioned and managed efficiently in response to user requests.

References:

• Dell Information Storage and Management V5 course materials, section on service provisioning and management
• Dell EMC documentation on orchestration in data centers

Change management is a process that uses an orchestrated approval process to assist decision making using an agile methodology. It involves assessing the impact of any proposed changes on the existing system, and then authorizing and implementing the changes in a controlled manner. The goal of change management is to ensure that changes are made in a smooth and efficient manner, with minimal disruption to the existing system.

Organizations must store, protect, and manage their data in order to comply with the various laws and regulations governing the use and storage of data, such as GDPR and CCPA. By properly managing their data, organizations can ensure that they are compliant with these regulations and avoid potential penalties. Additionally, by storing, protecting, and managing their data, organizations can ensure that their data is secure and protected from malicious actors.

it is important for organizations to store, protect and manage their data because data is a valuable asset that can drive business growth, innovation, and competitive advantage. Data can also be subject to various risks such as loss, corruption, theft, unauthorized access, and compliance violations.

One of the reasons why it is important for organizations to store, protect and manage their data is to meet the requirements of legal and data governance regulations1. This means that organizations should comply with the laws and policies that govern howdata should be collected, stored, processed, shared, and disposed of. Data governance also ensures that data quality, security, privacy, and ethics are maintained throughout the data lifecycle.

• Calculate the total downtime for Port 5:
• Calculate the total number of hours in a week:
• Calculate the uptime for Port 5:
• Calculate the availability:

Therefore, the availability of Port 5 in that week is approximately 94.6%.

References: Dell Information Storage and Management V5 documents

Cloud-based backup solutions provide flexibility and scalability, allowing organizations to select and adjust their backup technologies based on demand. This means that as data storage needs grow or change, the backup technology can be scaled up or modified without the need for significant capital investment or infrastructure changes. Cloud-based backups also offer features such as offsite data storage, disaster recovery, and accessibility from various locations, making them a versatile and efficient solution for dynamic data protection requirements.

References: Dell Information Storage and Management V5 Course Materials, Backup and Data Protection Solutions Section.

A file server is a computer that provides a location for shared disk access, i.e. storage of computer files (such as text, image, sound, video) that can be accessed by other computers on the same network2. A general purpose file server is a file server that serves shares such as team shares, user home folders, work folders and software development shares3.

According to 4, a purpose-built NAS solution is a storage system that simplifies data management with easy NAS file sharing. A NAS solution provides shared access to files over a network using protocols such as NFS and SMB/CIFS5.

Based on these definitions4, a benefit of using a purpose-built NAS solution vs general purpose file servers is A. provides more efficient file sharing across Windows and Linux users6. This is because a purpose-built NAS solution supports both NFS and SMB/CIFS protocols that enable file sharing across different operating systems5.

Flow control in FOP (File-Oriented Protocol) is a network performance attribute that ensures that packets are delivered in the same order they were sent. This is achieved by assigning each packet a sequence number, and then having the receiver send an acknowledgment back to the sender that it has received the packet and is ready for the next one. This helps to ensure that packets are not lost, and that they arrive in the same order they were sent.

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.

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.

A Brownfield infrastructure building process allows organizations to repurpose existing infrastructure components and provides cost benefits. Brownfield projects involve upgrading or integrating with existing systems and infrastructure rather than starting from scratch (as in Greenfield projects). This approach leverages the existing investments in infrastructure, reduces costs, and minimizes disruption while still achieving modernization and improvements.

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