D-ISM-FN-01 Dell Information Storage and Management Foundations v2 Exam Questions and Answers

VM cloningallows administrators to createexact copiesof a virtual machine quickly.

Saves time compared to manually configuring new VMs.

Useful for testing, development, and scaling environments.

Each clone can be independently modified after creation.

Same IP addressis typically not the case (clones get unique addresses).

Snapshotsprovide rollback points, not full VM clones.

Performancedoes not improve because of cloning itself.

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

Native NVMeis a protocol designed for direct-attached storage (DAS) environments. It allows a host to communicate with NVM storage devices (like NVMe SSDs) within the same server.

Limitation:Native NVMedoes notsupport external NVMe storage connectivity beyond the server.

To connect to external shared NVMe storage, protocols likeNVMe over Fabrics (NVMe-oF)are used.

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.

Total operational hours required: 12 hours/day × 5 days = 60 hours

Total downtime during required hours:

Monday: 2 hours

Wednesday: 1 hour (only 5 PM to 6 PM counts)

Rapid elasticity is a cloud computing characteristic that allows resources to be scaled up or down quickly and automatically, depending on demand. In the scenario of a sudden traffic surge, rapid elasticity enables the infrastructure to handle increased loads without manual intervention.

Measured service:Refers to monitoring and billing based on resource usage.

On-demand self-service:Allows users to provision resources as needed.

Resource pooling:Involves sharing resources among multiple users.

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.

Signature-based detectionis the most common method of malware detection. It works by comparing files and data to a database of known malware signatures:

Fast and efficient for known threats.

Updated regularly by security vendors.

Reputation-based:Looks at the trustworthiness of files/domains.

Behavioral:Monitors actions and identifies suspicious patterns.

Heuristic:Detects new malware based on file behaviors and patterns, useful for unknown threats.

In continuous data protection (CDP), journal space stores all the changes made to data over time. The amount of journal space determines the retention window, i.e., how far back in time data can be recovered. A larger journal allows for a longer recovery window.

Amount of space the source and replica volumes require:Relates to storage capacity, not recovery time.

Length of time required to recover the data:Depends on system performance and data size.

Amount of data that can be restored to a specific point:Depends on the changes captured in the journal.

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.

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.

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.

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.

Thefifth stageof penetration testing is known aspost-exploitationoranalysis of the compromised environment. It involves:

Checking the compromised system/networkto determine the scope of access.

Identifying potential for further exploitation.

Gathering information about the environment.

Option Arelates to the risk assessment phase.

Option Bis typically done in post-exploitation but isn’t the main step.

Option D(collecting evidence) is more related to reporting/documentation at the end.

Dell RecoverPoint is a continuous data protection (CDP) solution that uses journaling to provideany point-in-time recoveryof data. It continuously captures and replicates data changes, storing them in a journal to enable precise recovery to any required point in the past.

Dell SRDF (Symmetrix Remote Data Facility):Provides synchronous/asynchronous replication, not CDP.

Dell TimeFinder SnapVX:Creates point-in-time snapshots but doesn’t offer continuous journaling.

Dell Cloud Tier:Used for archiving older data to the cloud.