NetApp E-Series systems are designed for application-driven SAN storage that demands high performance, reliability, and data density. The three primary focus areas listed are video surveillance, backup, and big data analytics. These workloads benefit from the E-Series architecture, which provides high-speed sequential I/O and massive capacity, making it ideal for capturing large streams of video data, serving as a high-throughput backup target, and supporting the demanding performance requirements of analytics platforms like Splunk or Hadoop.

D. virtual desktop infrastructure: While technically possible, VDI is better served by NetApp ONTAP or SolidFire systems, which offer superior data reduction (deduplication, compression) and cloning features crucial for VDI efficiency.

E. file shares using SMB: E-Series is a block-based SAN storage system. It does not natively provide file-level access protocols like SMB or NFS, which are characteristic of NAS systems like NetApp FAS/AFF.

1. NetApp E-Series Product Page: The official product overview explicitly lists the key workloads for E-Series systems.

Reference: NetApp. (n.d.). E-Series Hybrid Flash Storage Arrays. Retrieved from netapp.com/data-storage/e-series.

Quote/Section: Under the "Handle demanding workloads" section, the page lists "High-performance computing (HPC)," "Backup and recovery," "Video surveillance," and "Big data analytics" as primary use cases. This directly supports answers A, B, and C.

2. NetApp Solution Brief for Video Surveillance: This document details the suitability of E-Series for video surveillance workloads.

Reference: NetApp. (2022). NetApp Solution for Video Surveillance Storage (SB-3858-0322).

Quote/Section: Page 2 states, "NetApp E-Series storage is an ideal platform for video surveillance workloads because it delivers the high-performance bandwidth, density, scalability, and reliability that are required to capture video data without dropping frames." This supports answer A.

3. NetApp Solution Brief for Backup: This document outlines the use of E-Series as a backup target.

Reference: NetApp. (2022). Veeam Backup & Replication with NetApp E-Series (SB-3859-0322).

Quote/Section: Page 2 highlights, "NetApp E-Series storage systems are an ideal backup target for Veeam... offering a combination of performance and density that is ideal for disk-based backup." This supports answer B.

4. NetApp Solution Brief for Big Data Analytics: This document describes the E-Series role in big data solutions.

Reference: NetApp. (2022). Splunk Enterprise with NetApp E-Series and EF-Series Storage (SB-4001-0322).

Quote/Section: Page 2 explains, "NetApp E-Series and EF-Series storage systems are an excellent fit for Splunk Enterprise environments, delivering the performance, density, and modular flexibility to meet a wide range of Splunk design requirements." This supports answer C.