D-ISM-FN-02 exam questions

1. Question 1

   Single answer

   An organization wants to consume compute, network, and storage resources through a self-service portal. Which cloud service model provides this capability?

   • A

     Platform as a Service

   • B

     Infrastructure as a Service

   • C

     Data as a Service

   • D

     Software as a Service

   Reveal answer

   Correct answer

   • B

     Infrastructure as a Service

   Explanation

   Infrastructure as a Service (IaaS) is a cloud computing model that provides virtualized computing resources over the internet. It offers fundamental infrastructure services such as compute, storage, and networking, which users can provision and manage through a self-service portal. This model allows organizations to scale resources as needed and pay only for what they use.

2. Question 2

   Multiple answer

   What are the two benefits of using sub-LUN tiering?

   • A

     Reduced need for storage capacity

   • B

     Granular control over data placement

   • C

     Cost optimization

   • D

     Reduced need for storage tiering policies

   • E

     Simplified storage management

   Reveal answer

   Correct answer

   • B

     Granular control over data placement

   • C

     Cost optimization

   Explanation

   Sub-LUN tiering allows for the movement of data at a more granular level within a Logical Unit Number (LUN), enabling:

   Granular control over data placement: Specific data blocks can be moved to appropriate storage tiers based on access patterns.

   Cost optimization: Frequently accessed data resides on high-performance (and more expensive) storage, while less accessed data is moved to cost-effective storage, optimizing overall storage costs.

   Other options:

   Reduced need for storage capacity: Not directly impacted by sub-LUN tiering.

   Reduced need for storage tiering policies: Policies are still required to manage data movement.

   Simplified storage management: While sub-LUN tiering adds efficiency, it may introduce complexity in management.

3. Question 3

   Drag and drop

   Match each OSD (Object Storage Device) feature with its description:

   

   Reveal answer

   Correct answer

   

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5. Question 4

   Single answer

   Which layer of the OSI model does a router primarily operate at?

   • A

     Layer 4

   • B

     Layer 2

   • C

     Layer 3

   • D

     Layer 7

   Reveal answer

   Correct answer

   • C

     Layer 3

   Explanation

   Routers are networking devices that determine the optimal path for data packets to travel across networks. They primarily operate at Layer 3 of the OSI model, known as the Network Layer. This layer is responsible for logical addressing and routing, enabling data to move between different networks.

   Layer 2 (Data Link Layer): Handles physical addressing and is the primary domain of switches.

   Layer 3 (Network Layer): Manages logical addressing (IP addresses) and routing; the main operational layer for routers.

   Layer 4 (Transport Layer): Ensures reliable data transfer but is not the primary layer for routers.

   Layer 7 (Application Layer): Interfaces with end-user applications; not relevant to routing functions.

6. Question 5

   Single answer

   An organization needs to adhere to compliance and lower the cost of the primary storage. What process should they implement?

   • A

     Data backup

   • B

     Data archiving

   • C

     Data encryption

   • D

     Data compression

   Reveal answer

   Correct answer

   • B

     Data archiving

   Explanation

   Data archiving involves moving infrequently accessed data to a separate storage system, freeing up space on primary storage and reducing costs. It also aids in compliance by retaining data for specified periods, as required by various regulations.

   Data backup: Creates copies of data for recovery purposes but doesn't necessarily reduce primary storage usage.

   Data archiving: Moves less frequently accessed data to cost-effective storage, aiding compliance and reducing primary storage costs.

   Data encryption: Secures data but doesn't impact storage costs or compliance retention.

   Data compression: Reduces data size but may not meet compliance requirements for data retention.

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