AWS Module 4.4 Flashcards

(24 cards)

1
Q

What is an Organizational Unit (OU)?

A

A: A logical grouping of AWS accounts used to apply governance and policies.

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2
Q

Q: What do Service Control Policies (SCPs) do?

A

A: They set the maximum permissions an AWS account can have in an organisation.

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3
Q

Q: Do SCPs grant permissions directly?

A

A: No, they only limit permissions.

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4
Q

Q: What is the relationship between IAM policies and SCPs?

A

A: Effective permissions are limited by both, so access must be allowed by IAM and not blocked by the SCP.

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5
Q

Q: Why are SCPs useful in AWS Organizations?

A

A: They centrally restrict what accounts in the organisation are allowed to do.

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6
Q

Q: What is AWS KMS used for?

A

A: Creating and managing encryption keys.

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7
Q

Q: What is the main security purpose of AWS KMS?

A

A: To control encryption across AWS services and applications.

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8
Q

Q: Why does AWS KMS integrate with CloudTrail?

A

A: To log and audit key usage.

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9
Q

Q: What protects keys inside AWS KMS?

A

A: Hardware Security Modules (HSMs).

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10
Q

Q: What standard are AWS KMS HSMs validated against?

A

A: FIPS 140-2.

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11
Q

Q: What is Amazon Cognito mainly used for?

A

A: Managing user sign-up, sign-in, and access control for apps.

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12
Q

Q: Why is Amazon Cognito suitable for large applications?

A

A: It scales to millions of users.

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13
Q

Q: What kind of providers can Amazon Cognito connect to?

A

A: Social and enterprise identity providers.

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14
Q

Q: What does AWS Shield Standard provide?

A

A: Automatic basic DDoS protection.

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15
Q

Q: What is AWS Shield designed to protect against?

A

A: DDoS attacks.

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16
Q

Q: What does AWS Shield Advanced add?

A

A: Enhanced detection and mitigation features.

17
Q

Q: Why is AWS Shield important for availability?

A

A: It helps reduce downtime and latency during attacks.

18
Q

Q: If IAM allows an action but an SCP blocks it, what is the result?

A

The action is denied

19
Q

Q: Why might a company organise accounts into different OUs?

A

A: To apply different controls to different groups of accounts.

20
Q

Q: What is the key difference between IAM policy and SCP?

A

A: IAM grants permissions, while SCP limits the maximum permissions.

21
Q

Q: Why is key management important in cloud security?

A

A: Because data security depends on protecting encryption keys.

22
Q

Q: Why might Cognito and IAM be used together?

A

A: To give authenticated app users secure access to AWS resources.

23
Q

Q: What is the main governance benefit of AWS Organizations?

A

A: Consistent control across multiple AWS accounts.

24
Q

Q: What is the main security benefit of using KMS instead of unmanaged keys?

A

A: Centralised and auditable key control.