Flashcards

AWS KMS

Key management service for encryption of data within AWS

5 minutes 5 Questions

AWS Key Management Service (KMS) is a managed service that makes it easy to create and control the encryption keys used to encrypt data. KMS integrates with many AWS services to help protect data stored in these services. KMS provides centralized control over the lifecycle of cryptographic keys. I…

Concepts covered

Data Keys Customer Master Key Cryptographic Algorithms Key Management Best Practices AWS Key Management Service Key Rotation Access Control and Auditing Envelope Encryption Grant Tokens AWS KMS Integration

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AWS Certified Solutions Architect - AWS KMS Example Questions

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Question 1

What is the difference between a symmetric and an asymmetric key in AWS KMS?

A symmetric key is less secure than an asymmetric key A symmetric key uses the same key for encryption and decryption, while an asymmetric key uses a different key for encryption and decryption A symmetric key is used for data encryption, while an asymmetric key is used for access control A symmetric key is generated by AWS KMS, while an asymmetric key is generated by the customer

Correct Answer: A symmetric key uses the same key for encryption and decryption, while an asymmetric key uses a different key for encryption and decryption

The main difference between a symmetric and an asymmetric key in AWS KMS is that a symmetric key uses the same key for encryption and decryption, while an asymmetric key uses a different key for encryption and decryption. This allows for different types of cryptographic operations, with symmetric keys being more suited for data encryption and asymmetric keys being more suited for access control and encryption in transit.

Question 2

What operating systems are supported by the KMS cryptographic client?

Only Ubuntu Only CentOS and Fedora Multiple, including Amazon Linux, Debian, Ubuntu, CentOS, RHEL, SUSE, and Microsoft Windows Only Windows 10

Correct Answer: Multiple, including Amazon Linux, Debian, Ubuntu, CentOS, RHEL, SUSE, and Microsoft Windows

The AWS KMS cryptographic client is an open-source software library that you can use to protect data keys in your own applications. The client library supports multiple popular operating systems, including Amazon Linux, Debian, Ubuntu, CentOS, RHEL, SUSE, and Microsoft Windows.

Question 3

What is key material in AWS KMS?

It is a type of permission that allows a user or role to use a KMS key. It is a type of metadata that is associated with a KMS key, such as key ID, creation date, and origin. It is a tool that can be used to manage KMS keys. It is the actual bits that are used as the basis for encryption and decryption.

Correct Answer: It is the actual bits that are used as the basis for encryption and decryption.

Key material is the actual bits that are used as the basis for encryption and decryption. It is the secret component of a cryptographic key that is maintained by AWS KMS.

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