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

5Grepresents the fifth generation of mobile networks and offers several significant advantages over 4G, 3G, and earlier generations:

Increased speed:5G delivers data speeds up to 100 times faster than 4G LTE.

Enhanced capacity:Supports more devices per square kilometer, crucial for IoT and smart cities.

Low latency:Reduces delay in data transmission, enabling real-time applications like remote surgeries or autonomous vehicles.

Increased bandwidth(Option B) is part of the overall increased capacity.

Reduced distance(Option C) is incorrect; 5G uses shorter wavelengths, meaning shorter range.

Lower cost(Option D) is not a key advantage of 5G technology itself.

Configuration Management is the process that ensures all configuration items (CIs) are identified, tracked, and maintained throughout their lifecycle. It maintains a Configuration Management Database (CMDB) that records the relationships and configurations of various components in the IT environment.

A screenshot of a computer AI-generated content may be incorrect.

✅Flexible data access method:Object storage can offer multiple ways to access and interact with stored data, such as REST/SOAP APIs (for object-based access) and file-sharing protocols (CIFS, NFS) for file-level access.

✅Metadata-driven policy:Object storage uses rich metadata to define how objects are placed, protected, and managed, driven by policies that respond to service-level requirements.

✅Data protection:Object storage systems implement data protection at a global scale through replication or erasure coding to ensure data durability and availability.

✅Global namespace:Object storage abstracts physical locations, providing a single namespace (a unified view) so that applications can seamlessly access data regardless of where it physically resides.

Remote data protection and recovery solutions, like replication and cloud-based backup, are primarily designed to ensuremaximum application and information availability. They protect data in the event of:

Local failures(disk, server, or site outages)

Natural disasters(floods, fires)

Ransomware attacks

By having off-site copies and failover options, businesses maintain continuous access to critical data.

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.

Monitoringis the ongoing process of observing and tracking the performance and availability of IT infrastructure, including:

Storage devices

File systems

Ports and connectivity

It helps ensure service levels are met and detect potential issues.

Reporting: Summarizes data (often based on monitoring data).

Alerting: Notifies of specific events or thresholds (also uses monitoring data).

Infrastructure discovery: Detects and inventories devices.

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.

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.

RAID 1isdisk mirroring. It writes identical copies of data to two disks simultaneously, providing redundancy.

Minimum of 2 disks (no parity, no striping).

Excellent read performance, write performance equivalent to a single disk.

Providesfault tolerancebecause data is duplicated.

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.

FCIP(Fibre Channel over IP) encapsulatesFibre Channel framesinto IP packets and tunnels them over IP networks. This enables remote SAN connectivity across IP-based WANs while preserving FC protocols.

Over Ethernetis inaccurate because FCIP uses IP-level transport (Layer 3), not just Layer 2.

Splitting LAN and FC SAN datais irrelevant to the tunneling mechanism.

Separating LAN/SAN dataalso misses the encapsulation focus.

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.

Rebuilding a RAID 5 array after a disk failure depends on:

Capacity of the failed disk (C)– More data means longer rebuild time.

Write performance of the remaining disks (B)– Rebuild involves recalculating parity and writing data to the replacement disk, which stresses the surviving disks.

Network bandwidth (A)is only relevant for accessing the array, not for internal rebuild operations.

Cache capacity (D)helps performance in some scenarios, but the direct factors are disk size and performance.

Cloud-based backupsolutions are managed by third-party providers and offer easy scalability, flexibility, and reduced IT management overhead. They allow businesses to focus on operations while the provider manages infrastructure, updates, and capacity.

Image-based backup:Captures entire system images but may still require local storage and management.

Agent-based backup:Deploys agents to servers, requiring management of the agents.

Tape-based backup:Involves hardware and manual processes for storage, increasing management burden.

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.