EMC D-ISM-FN-01 Dell Information Storage and Management Foundations v2 Exam Exam Practice Test

Log files record events and messages related to the operations of a virtual machine. They provide detailed information about the VM's behavior, errors, and system messages, which are crucial for troubleshooting.

AnIDPS (Intrusion Detection and Prevention System)monitors network traffic and system activities for signs of malicious activity and policy violations. It canidentify and blocksecurity threats in real-time.

Antivirus software:Focuses on detecting/removing malware, not broader vulnerabilities.

Password encryption:Secures credentials but does not identify vulnerabilities.

IAM:Manages access but does not detect attacks.

Capacity planning reports in storage environments focus on:

Utilization trendsof storage systems (e.g., used vs. available space)

File system usage(volumes, file systems)

Ports (SAN/NAS connections)

This enables proactive capacity management and ensures enough resources are available to meet future demands.

In Ethernet networking, VLANs (Virtual Local Area Networks) are identified using a 12-bit VLAN ID field in the IEEE 802.1Q standard. Since 12 bits can represent 2¹² = 4096 unique values, the maximum number of VLANs that can be supported is 4096.

1024 and 2048: These values are less than the maximum and represent subsets of possible VLANs.

8192: This exceeds the 12-bit limit and is not supported by the standard.

The primary purpose of a data backup solution is tomaintain business continuityby ensuring data can be restored in case of accidental deletion, hardware failure, or data corruption.

Not to reduce storage costs:Archiving and tiering handle that.

Not to improve application performance:Backup processes typically don't enhance live performance.

Not to reduce archive usage:Backup and archive have different use cases.

Using SSDs as asecondary cache(sometimes called a “flash cache”) helps:

Improve read performanceby storing frequently accessed data in the faster SSDs.

Reduce latency for read requests because SSDs are much faster than traditional spinning hard drives (HDDs).

Power consumption (A): SSDs do use less power, but the primary goal here is performance.

Data backup (C): SSD cache doesn’t impact backup operations.

Storage capacity (D): This is not the main focus; the SSDs act as a cache layer only.

The exhibit shows a Fibre Channel (FC) switch connected to another FC switch. The port "X" is used for inter-switch link (ISL) connectivity, which is characteristic of anE_port (Expansion Port).

F_port (Fabric port):Connects an N_port (host or storage device) to a switch.

N_port (Node port):End device port in FC networks (like HBA in hosts or storage).

NL_port (Node Loop port):Used for Arbitrated Loop topologies.

E_port:Connects two FC switches together for ISL, which is exactly what's shown in the exhibit.

To calculate the MTBF, we need to determine the total operational time and the number of failures.

Total operational time (Monday to Friday):5 days × 24 hours = 120 hours

Number of failures:3 (Tuesday, Thursday, Friday)

MTBF = Total operational time / Number of failures

MTBF = 120 hours / 3 = 40 hours

FCIP (Fibre Channel over IP)is used totunnel Fibre Channel traffic over IP networks. Its primary use case:

Connecting local FC SANs to remote FC SANsfor disaster recovery and remote data replication.

Itencapsulates FC framesinto IP packets, transporting them over existing IP infrastructure.

Option B/C/D:iSCSI is not directly involved in FCIP’s primary function.

The orchestration layer in a modern data center architecture is responsible for automating and coordinating complex tasks and workflows. It enables the integration and management of various services and resources to perform business operations efficiently.

Physical infrastructure:Comprises the hardware components.

Virtual infrastructure:Includes virtualized resources like VMs.

Services:Deliver specific functionalities to end-users.

Confidentialityensures that sensitive data is only accessible to authorized users. This is a primary goal of information security, achieved by:

Access controls(authentication, authorization)

Encryptionto protect data in transit and at rest

Monitoring and auditingto detect unauthorized access

Availability:Ensuring data/services are accessible when needed.

Accountability:Tracking actions of users (audit trails).

Integrity:Protecting data from unauthorized modification.

Thefirst step in any ML projectis tocollect the datasetsthat will be used to train and validate the model.

This data collection step ensures you haveenough representative examples.

After this, data is analyzed, learning type is chosen, and the model is trained.

Collecting the datasetsis the first step in any machine learning (ML) process. Without data, the ML system cannot function. Steps include:

1️⃣Collecting datasets:Gathering data relevant to the problem to train and validate the ML model.

2️⃣Analyzing data:Cleaning and exploring data for patterns.

3️⃣Selecting learning type:Deciding between supervised, unsupervised, or reinforcement learning.

4️⃣Training the model:Using the data to build predictive models.

Defense-in-depthis a security strategy thatlayers multiple security controlsthroughout the IT environment to protect data and infrastructure.

Firewalls (network layer)

VPN (secure remote access)

Malware protection (endpoint and gateway)

Encryption (data in transit and at rest)

This approach reduces reliance on a single security measure and strengthens overall protection.

Zero trust:Focuses on continuously validating trust.

DMZ:Network architecture, not a full security approach.

Perimeter security:Limited to the outer edge of the network.

IP packet segmentationcan cause replication performance issues over the WAN.

Since FCIP tunnels FC frames over IP networks, if the IP packet size exceeds the MTU, packets are fragmented and reassembled, increasing latency.

TE_Port modeis used for trunking, not related to packet fragmentation.

EX_Port modeis used for inter-switch connectivity (FCR).

Ethernet frame segmentationis not relevant in FCIP tunneling.

Inwrite-through caching, data is written simultaneously to both the cache and the underlying disk. This ensures data integrity because the write is not acknowledged until it’s safely written to the disk.

Write-backcaching offers reduced latency but increases risk of data loss if cache is lost.

Write-throughtrades speed for security, offeringenhanced data securityand reducing the risk of data loss during power failures.

Infrastructure as a Service (IaaS) is a cloud computing model that provides virtualized computing resources over the internet. It offers fundamental infrastructure services such as compute, storage, and networking, which users can provision and manage through a self-service portal. This model allows organizations to scale resources as needed and pay only for what they use.

Aread missoccurs when the data requested by the host isnotavailable in the cache. As a result, the storage system must fetch the data from the slower disk storage (back-end), leading to higher latency.

Cache hit:Data is already in cache → faster response.

Cache miss (read miss):Data not in cache → fetched from the disk.