D-ISM-FN-01 Dell Information Storage and Management Foundations v2 Practice Questions
Prepare for D-ISM-FN-01 with more than an answer.
- Exam fee
- $230 USD
- Level
- Associate
- Valid for
- 3 years
Domains covered on the exam 5
- Modern Data Center Infrastructure18%
- Storage Systems23%
- Storage Networking Technologies19%
- Backup, Archive, and Replication24%
- Security and Management16%
- 1
The RAID level that provides striping with distributed parity, requires a minimum of three disks, and can tolerate the failure of a single disk is known as RAID ___.
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Correct answer: D
RAID 5 uses block-level striping with parity data distributed across all member disks. This configuration requires at least three disks and provides data redundancy to tolerate the failure of one disk in the set.
- 2
A university is implementing a new storage solution and must grant different levels of access to various user groups. The database team needs full control over database LUNs, the virtualization team needs to manage datastores, and the helpdesk team needs read-only monitoring access. Which security mechanism is best suited for enforcing these granular permissions?
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Correct answer: C
Role-Based Access Control (RBAC) is the ideal mechanism for this scenario. RBAC allows administrators to create roles (e.g., 'DB Admin', 'VMware Admin', 'Auditor') with specific sets of permissions and then assign users to those roles. This enforces the principle of least privilege and simplifies permissions management compared to assigning rights to individual users.
- 3
What is the key difference between data backup and data archiving?
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Correct answer: B
The primary purpose of a backup is to create a copy of data to be used for recovery in case of data loss or corruption. The original data remains on the primary storage. Archiving, however, involves moving data that is no longer actively used from primary storage to a separate, lower-cost tier for long-term retention, typically for compliance or legal reasons. A key outcome of archiving is freeing up space on expensive primary storage.
- 4
A company is considering using source-side data deduplication with Dell PowerProtect DD and DD Boost for its remote office backups. What are TWO primary advantages of this approach? (Select TWO)
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Correct answer: B, C
- 5
A storage administrator needs to create a 500 GB volume for a test server. To conserve storage space on the array, the administrator wants to allocate physical capacity only as the server writes data to the volume. Which provisioning method should be used?
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Correct answer: B
Thin provisioning (or virtual provisioning) allocates storage space from a shared pool on a just-in-time basis. The volume appears to the server as 500 GB, but it consumes almost no physical space on the array initially. Space is only consumed as data is actually written, which is highly efficient for environments where future capacity needs are uncertain.
- 6
Which technology allows a Fibre Channel SAN to be extended across a standard IP network, enabling long-distance disaster recovery between data centers?
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Correct answer: C
Fibre Channel over IP (FCIP) is a tunneling protocol that transports FC frames across an IP network. It encapsulates FC traffic within IP packets, allowing separate FC SAN fabrics to be connected over long distances using existing IP WAN infrastructure. This is a common solution for remote replication and disaster recovery.
- 7
An administrator is extending a Fibre Channel fabric by connecting two switches together. This connection is referred to as an Inter-Switch Link (ISL). Which port type must be used on both switches to establish the ISL?
graph TD subgraph Site A Server1 --> Switch1 Storage1 --> Switch1 end subgraph Site B Server2 --> Switch2 Storage2 --> Switch2 end Switch1 -- "ISL (? Port ? Port)" -- Switch2Show answer details
Correct answer: C
An E_Port (Expansion Port) is used specifically to connect one Fibre Channel switch to another. This connection forms an Inter-Switch Link (ISL), which allows the two switches to merge and create a larger, unified fabric. N_Ports are on end devices, and F_Ports are the switch ports that connect to N_Ports.
- 8
A financial services firm requires a disaster recovery solution for its critical online transaction processing (OLTP) database, which has a Recovery Point Objective (RPO) of near-zero. The primary and DR sites are 150 km apart. Which Dell replication technology is the most suitable choice to meet this stringent RPO requirement?
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Correct answer: B
For a near-zero RPO, synchronous replication is required. SRDF/S (Synchronous) ensures that a write I/O is committed to both the primary and secondary sites before the host is acknowledged, guaranteeing zero data loss in the event of a primary site failure. Asynchronous replication introduces a small delta of data loss, and snapshot-based methods have a much higher RPO. CDP is excellent for granular recovery but SRDF/S is the gold standard for zero-RPO block replication over this distance.
- 9
A manufacturing company is deploying a large-scale IoT sensor network on its factory floor. Data must be processed locally with minimal latency to control machinery in real-time. Sending all raw data to a central data center for processing is not feasible due to network bandwidth constraints and latency requirements. Which computing model is the most appropriate architecture for this scenario?
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Correct answer: C
Edge computing is specifically designed for scenarios where data needs to be processed close to its source to reduce latency and conserve network bandwidth. By deploying compute and storage resources at the 'edge' (the factory floor), the company can perform real-time analytics and control machinery without the delay of a round-trip to a central data center. The other models involve centralized processing, which would not meet the low-latency requirement.
- 10
A storage administrator is provisioning a new LUN on a Dell PowerStore array for a database's transaction logs. The primary requirement is the highest possible write performance and data protection against a single drive failure. Which RAID level is the optimal choice for this specific workload?
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Correct answer: C
RAID 10 (a stripe of mirrors) is the best choice for write-intensive workloads like database transaction logs. It offers excellent write performance because it does not have the write penalty associated with parity calculations found in RAID 5 and RAID 6. It also provides redundancy by mirroring data, protecting against a single drive failure within each mirrored pair.
