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DEA-C01 Data Operations and Support Practice Question

Network Topology
$ aws redshift describe-clusterscluster-identifier my-redshift-clusterRefer to the exhibit."Clusters": ["ClusterIdentifier": "my-redshift-cluster","NumberOfNodes": 4,"NodeType": "dc2.large","ClusterStatus": "available","Encrypted": true,"VpcId": "vpc-12345678","ClusterSubnetGroupName": "default","AutomatedSnapshotRetentionPeriod": 1

Refer to the exhibit. A data engineer is reviewing the configuration of an Amazon Redshift cluster. The engineer wants to ensure that the cluster can be restored to a point in time up to 35 days in the past. Based on the exhibit, what change is needed?

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

✓

Increase the automated snapshot retention period to 35 days.

The automated snapshot retention period is currently set to 1 day, which only allows point-in-time recovery within the last day. To restore to a point in time up to 35 days in the past, this retention period must be increased to 35 days. Option B (changing the subnet group) does not affect backup retention. Option C (enabling encryption) is unrelated to snapshot retention; the cluster may already be encrypted or not, but encryption does not extend the retention period. Option D (increasing the number of nodes) also does not affect snapshot retention.

Answer analysis

Option-by-option breakdown

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

  • ✓

    Increase the automated snapshot retention period to 35 days.

    Why this is correct

    Current retention is 1 day.

  • ✗

    Change the cluster subnet group to a custom one.

    Why it's wrong here

    Subnet group does not affect retention.

  • ✗

    Enable encryption on the cluster.

    Why it's wrong here

    Encryption is already enabled.

  • ✗

    Increase the number of nodes to 6.

    Why it's wrong here

    Node count does not affect snapshot retention.

Visual reference

192.168.1.0 /24 256 addresses (254 usable) 192.168.1.0 /25 Subnet A 128 addr (126 usable) 192.168.1.128 /25 Subnet B 128 addr (126 usable) Borrowing 1 bit from host portion creates 2 subnets (/25)

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This DEA-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 DEA-C01 exam.