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Storage (ECS) Exam
Question 1 What is the primary form of storage provided by Elastic Cloud Storage (ECS)? A. Block storage B. Tape storage C. Object storage D. File storage Correct: C Explanation: ECS is primarily focused on object storage, making it suitable for modern cloud-based storage needs. Question 2 Which protocol is natively supported by ECS for object storage access? A. NFS B. SMB C. Amazon S3 API D. iSCSI Correct: C Explanation: ECS natively supports the S3 API for object storage, enabling compatibility with various applications.
Storage (ECS) Exam
Question 3 Which of the following ECS features improves fault tolerance? A. Data striping only B. Manual sharding C. Data replication D. Write-through caching Correct: C Explanation: Data replication replicates objects across nodes, enhancing data durability and system resilience. Question 4 What is one primary benefit of ECS compared to traditional block storage? A. Lower storage capacity B. Inflexible scaling C. Strong integration with cloud environments D. No data replication Correct: C Explanation: ECS provides cloud-native scalability and flexibility, especially over older block storage models.
Storage (ECS) Exam
Explanation: ECS is designed for unstructured data like backup, analytics, but is not optimized for structured, transactional databases. Question 7 What mechanism ensures high availability in ECS clusters? A. Replication across nodes B. Restricting to single-node deployments C. Single point of failure D. Unencrypted data transfers Correct: A Explanation: Data is replicated across ECS nodes, so if one fails, data remains available from others. Question 8 What is the role of namespaces in ECS? A. To manage user authentication B. To divide storage pools for logical separation of data C. To monitor CPU utilization D. To replicate metadata only
Storage (ECS) Exam
Correct: B Explanation: Namespaces in ECS create logical partitions for data, often separating tenants or applications. Question 9 Which ECS component is responsible for managing storage resources? A. S3 API endpoint B. Object chunker C. Storage pool D. Mail server Correct: C Explanation: Storage pools group multiple storage devices for efficient resource management in ECS. Question 10 Which of the following deployment models is possible with ECS? A. On-premises only B. Private cloud only C. On-premises, public cloud, and hybrid cloud
Storage (ECS) Exam
C. Use only one storage type D. Avoid data tiering Correct: B Explanation: Capacity optimization involves balancing between erasure coding, replication, and the right mix of storage hardware. Question 13 How does ECS support hybrid cloud architectures? A. Prohibits any cloud connectivity B. Supports integration with other cloud services like AWS S C. Only provides local object storage D. Only supports file-based storage Correct: B Explanation: ECS supports integration with cloud storage like AWS S3, making it suitable for hybrid architectures. Question 14 Which feature of ECS assists with big data analytics workloads? A. Object lifecycle management
Storage (ECS) Exam
B. Tape drive support C. Synchronous block-level mirroring D. Disabling audit logs Correct: A Explanation: ECS’s object lifecycle management helps organize, tier, and clean up large data sets used in analytics. Question 15 Which networking component must be properly configured to avoid ECS cluster partitioning? A. Storage pool B. Networking switches and routers C. Hard disk drive D. USB drives Correct: B Explanation: Networking equipment like switches/routers must be set up correctly to maintain ECS cluster communication.
Storage (ECS) Exam
Explanation: ECS uses RESTful APIs (like S3 and Atmos) for data and management operations. Question 18 Where are ECS logs primarily used? A. File system only B. Troubleshooting and system health monitoring C. Data encryption D. API authentication Correct: B Explanation: ECS logs are essential for diagnosing issues, auditing, and monitoring health/performance. Question 19 What type of security protocol is typical for ECS access control? A. RBAC (Role-Based Access Control) B. POP C. FTP D. Telnet
Storage (ECS) Exam
Correct: A Explanation: ECS commonly uses RBAC to manage user privileges and access to resources. Question 20 To onboard data to ECS, which method minimizes downtime for active workloads? A. Cold migration only B. Offline tape upload C. Online, incremental migration tools D. XML export/import Correct: C Explanation: Online incremental migration enables active workloads with minimal disruption. Question 21 How is encryption-at-rest achieved in ECS? A. Unencrypted SSDs B. Uses self-encrypting drives or software-based encryption
Storage (ECS) Exam
A. Performance logs B. Security logs C. Application debug logs D. Proxy logs Correct: A Explanation: Performance logs reveal details about response times, helping pinpoint latency sources. Question 24 A storage pool in ECS can be described as A. A set of tapes B. An aggregation of disks or storage devices managed collectively C. An isolated server D. A dedicated CPU resource pool Correct: B Explanation: Storage pools are collections of drives/resources, managed together for capacity and performance.
Storage (ECS) Exam
Question 25 What operation does the ECS lifecycle management policy automate? A. Data backup to CDs B. Data transition between storage classes and eventual deletion C. Sending emails D. CPU overclocking Correct: B Explanation: Lifecycle management automatically transitions objects between classes and deletes them as required. Question 26 Which backup strategy directly leverages ECS replication? A. Manual file copying B. ECS cross-node or cross-site replication C. Paper record backup D. Cloud print jobs Correct: B Explanation: ECS supports data replication across clusters/nodes for redundancy and backup.
Storage (ECS) Exam
Question 29 What can be used to monitor storage capacity usage in ECS? A. ECS dashboard and metrics B. Guesswork C. BIOS screen D. Manual recordkeeping Correct: A Explanation: ECS dashboards provide real-time and historical metrics for monitoring used and available capacity. Question 30 Which ECS feature provides logical grouping and access isolation for objects? A. Storage pool B. Namespace C. IP address D. DNS alias Correct: B Explanation: Namespaces logically group objects and can enforce access isolation within ECS.
Storage (ECS) Exam
Question 31 For protocol interoperability, which service does ECS emulate? A. SMTP B. Amazon S C. POP D. IPv6 tunneling Correct: B Explanation: ECS supports S3 APIs, enabling service interoperability with AWS-compliant tools. Question 32 What does the ECS software stack NOT include? A. Object storage engine B. User API endpoints C. Database engine for SQL queries D. Cluster management services Correct: C Explanation: ECS’s stack does not include an SQL database engine; it focuses on object storage, APIs, and management.
Storage (ECS) Exam
Question 35 Which performance metric is critical for tuning ECS? A. Object access latency B. Printer ink levels C. Monitor brightness D. Time zone Correct: A Explanation: Object access latency is a key performance measure for object storage like ECS. Question 36 What is required for ECS to support S3 API authentication? A. AWS IAM-compatible credentials B. Serial keys C. SSH public keys D. USB dongles Correct: A Explanation: S3-compatible credentials (access and secret keys) are used for API authentication in ECS.
Storage (ECS) Exam
Question 37 Which best describes erasure coding in ECS? A. Simple duplication B. A data protection technique dividing and spreading data C. A form of RAID 0 D. Printing backup copies Correct: B Explanation: Erasure coding splits data, adds parity, and spreads chunks to improve redundancy and space efficiency. Question 38 For regulatory compliance (HIPAA/GDPR), ECS supports A. Data encryption and access controls B. Disabling all logs C. Plaintext storage D. Open anonymous access Correct: A Explanation: Compliance requires proper encryption and access mechanisms, both of which ECS supports.
