Practice DC Storage Questions Now
Start a timed practice session focusing on Data Center Storage Networking topics from the DCCOR question bank.
Start DCCOR Practice Quiz →DCCOR DC Storage Question Bank (9 Questions)
Browse all 9 practice questions covering Data Center Storage Networking for the DCCOR certification exam. Each question includes the full answer and a detailed explanation to help you understand the concepts.
- Question 1Storage Networking
What is the purpose of zoning in a Fibre Channel SAN?
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Correct Answer: BExplanation:FC zoning restricts which devices can communicate within the SAN fabric. It provides access control and traffic isolation, ensuring that only authorized hosts can see and access specific storage targets.
- Question 2Storage Networking
What is a VSAN in the context of Cisco MDS switches?
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Correct Answer: AExplanation:A VSAN (Virtual SAN) on Cisco MDS switches provides logical segmentation of a physical FC SAN fabric into multiple isolated fabrics, similar to how VLANs segment Ethernet networks. Each VSAN has its own fabric services.
- Question 3Storage
What is the purpose of zoning in Fibre Channel SANs?
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Correct Answer: BExplanation:FC zoning restricts which initiator-target pairs can communicate: improves security (access control), reduces RSCN (registered state change notification) scope, and prevents accidental access to wrong LUNs.
- Question 4Storage Networking
What does Fibre Channel over Ethernet (FCoE) accomplish?
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Correct Answer: BExplanation:FCoE encapsulates native Fibre Channel frames inside Ethernet frames, allowing SAN and LAN traffic to share the same physical Ethernet infrastructure. It requires lossless Ethernet (DCB/PFC) to maintain FC reliability.
- Question 5Compute
What is the primary advantage of booting servers from SAN storage rather than local disks?
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Correct Answer: BExplanation:Boot from SAN allows the OS to reside on centralized storage. If a server fails, a replacement server can boot from the same SAN LUN with the same OS and data, enabling true stateless computing and simplifying server replacement.
- Question 6Storage Networking
What causes slow-drain conditions in a Fibre Channel SAN?
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Correct Answer: BExplanation:Slow-drain occurs when a device (often a host or storage port) processes frames slower than they arrive. This exhausts buffer credits on the connected switch port, causing congestion to spread upstream through the fabric (credit starvation).
- Question 7Storage Networking
What is the benefit of using device aliases in a Fibre Channel SAN?
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Correct Answer: BExplanation:Device aliases map friendly names to WWN (World Wide Name) addresses, making FC SAN management easier. Instead of using complex 64-bit WWN hex strings in zoning, administrators can use meaningful names like 'server01-hba0'.
- Question 8Storage Networking
What is Fibre Channel over Ethernet (FCoE)?
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Correct Answer: BExplanation:FCoE carries Fibre Channel SAN traffic over lossless Ethernet (using DCB/PFC), converging storage and network onto a single fabric, reducing cables, adapters, and switches needed.
- Question 9Storage Networking
What is a VSAN (Virtual SAN) in Cisco MDS switches?
Show Answer & Explanation
Correct Answer: BExplanation:VSANs logically divide a physical SAN into isolated virtual fabrics, each with its own fabric services, zoning, and name server, providing multi-tenancy and fault isolation.
Key DC Storage Concepts for DCCOR
DCCOR DC Storage Exam Tips
Data Center Storage Networking questions in DCCOR are typically scenario-based. Focus on service-level decision making aligned to official exam objectives. Priority concepts: fibre channel, fcoe, iscsi, vsan, zoning, san.
What DCCOR Expects
- Anchor your answer in select the most practical, secure, and scalable answer for the stated scenario.
- DC Storage scenarios for DCCOR are frequently mapped to Domain 3 (20%), so read the objective carefully before picking controls or architecture.
- Expect multi-service scenarios where DC Storage interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated service question.
- When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Professional) and managed-service best practices.
High-Value DC Storage Concepts
- Know the core DC Storage building blocks cold: fibre channel, fcoe, iscsi, vsan.
- Review the edge-case features and limits for zoning, san; these details are commonly used to differentiate answer choices.
- Practice service-integration reasoning: how DC Storage pairs with DC Networking, DC Compute in real deployment patterns.
- For DCCOR, explain why the chosen DC Storage design meets reliability, security, and cost expectations better than the alternatives.
Common DCCOR Traps
- Watch for answers that partially solve the requirement but miss operational constraints.
- Questions in Storage Networking often include distractors that look correct for DC Storage but violate least-privilege, durability, or availability requirements.
- Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
- If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.
Fast Review Checklist
- Can you compare at least two DC Storage implementation paths and justify which one best fits the scenario?
- Can you map the chosen answer back to Storage Networking (20%) outcomes for DCCOR?
- Can you explain security and access boundaries for DC Storage without relying on default-open assumptions?
- Can you describe how DC Storage integrates with DC Networking and DC Compute during failure, scaling, and monitoring events?