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Operations and Maintenance →hardMultiple ChoiceObjective-mapped

PAS-C01 Operations and Maintenance Practice Question

An SAP HANA database on EC2 is experiencing high I/O latency. The database uses a single EBS volume for /hana/log. The volume is a gp2 volume with 1000 GB size. The administrator notices that the volume's burst balance is depleted. Which action should be taken to improve latency?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Change the volume type to Provisioned IOPS SSD (io1) with sufficient IOPS

Switching to io1 provides consistent IOPS without burst balance. Option C (increasing size to 2000 GB) would double the baseline IOPS but not eliminate burst dependency. Option B (adding more volumes) may help but is more complex. Option A (using st1) is for throughput, not low latency.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Change the volume type to Throughput Optimized HDD (st1)

    Why it's wrong here

    st1 is for large sequential I/O, not low latency.

  • ✗

    Add additional gp2 volumes and stripe them in a RAID 0

    Why it's wrong here

    Striping helps throughput but each volume still has burst limits.

  • ✗

    Increase the volume size to 2000 GB to double the baseline IOPS

    Why it's wrong here

    Increasing size raises baseline IOPS but burst balance still depletes.

  • ✓

    Change the volume type to Provisioned IOPS SSD (io1) with sufficient IOPS

    Why this is correct

    io1 provides consistent IOPS without burst credits.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.