AWS Interview Questions and Answer Part – 17

What set of operations can you perform on RDS database logs?

• View, watch, and download (Ans)
• View, download, and purge
• View and watch
• View and download

What is a “node slice” in the Redshift architecture?

• The leader that managers communication with clients and nodes
• A partition of a compute node that works in parallel with others to complete operations (Ans)
• A compute node securely shared with multiple Redshift customers
• A snapshot of a node at a point in time

Which of the following is true of a multi-AZ database?

• It cannot be connected to via client tools
• All of these (Ans)
• It is the database instance used when you take backups
• It is synchronously updated from the source instance

You can restore an RDS database to any specific time during the retention period.

• False
• True (Ans)

A DynamoDB hash primary key is stored as an ordered index that can be queried.

• True
• False (Ans)

A Redshift security group is used to provide role-based access to the cluster.

• True
• False (Ans)

Why would you use a secondary index on a DynamoDB table?

• Define alternate keys to query and scan (Ans)
• Duplicate data for redundancy purposes
• All of these
• To manually synchronize data with a source table

Why are Redshift snapshots useful?

• Act as a disaster recovery tool by letting you stand up a cluster copy in another region
• Restoring from a snapshot retains all the data and metadata from the source cluster
• All of these (Ans)
• Snapshots can be shared with other AWS accounts

Redshift is based on PostgreSQL, but differs in supported functions, data types, and features.

• False
• True (Ans)

The COPY command can import data from S3, DynamoDB, or a server.

• No
• Yes (Ans)

In a global secondary index, the key values do NOT need to be unique.

• False
• True (Ans)

What billable components make up the AWS API Gateway?

• Requests, data out, and cache (Ans)
• API calls
• SEO + Virality
• Requests and data out only

What is the purpose of the execution role?

• Controls what events can trigger the lambda function
• Controls what resources the lambda function can access (Ans)
• Determines how long the function can run
• Terminates the lambda function based on rules

What is a REST API?

• A group of resources or methods
• Any website with a search feature
• An API not currently in use
• A group of resources and methods (Ans)

What API Gateway feature allows you to transform data?

• Mapping Templates (Ans)
• You can’t, it must be done in the backend service
• HTTP Methods
• IAM Permissions

Functions with multiple files or module dependencies should:

• Store the files in a publicly accessible location
• Zip the contents and upload directly to lambda (Ans)
• Reference the files using ARN names
• Avoid using lambda functions

What is the default access level if a policy does not exist?

• Web authorization headers are used
• An overriding policy applies
• Access denied (Ans)
• Access granted

One way to start using the API Gateway is:

• Integrating with your current Continuous Integration server
• Greenfield projects that have no legacy dependencies (Ans)
• Building the front-end interface for your customer portal
• Expanding the features of your existing API set

When deploying using the AWS API Gateway:

• Manually copy needed deployment files
• Build a server, patch, and deploy
• Click the deploy button (Ans)
• Deploy to an existing EC2 instance

API Keys can be used to authorize users.

• True
• False (Ans)

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.