The AWS Certified Security – Specialty (SCS-C03) exam tests your skills in securing AWS environments. It is designed for security professionals looking to validate their expertise in AWS security.
A company needs to securely share S3 bucket data with multiple partners. Which feature should they use?
AIAM Roles
BBucket Policies
CAWSPolicy Simulator
DAccess Control Lists
Explanation
Bucket Policies allow for fine-grained permissions across AWS accounts; IAM Roles can't be used directly for bucket-level access control.
Q452
What happens when you enable MFA (Multi-Factor Authentication) on an IAM user?
ARoles are disabled
BIncreased data throughput
CAdditional security layer added
DLimited access hours defined
Explanation
MFA adds a necessary second factor for authentication, increasing security; other options do not relate to MFA impact.
Q453
You are configuring a VPC with several subnets. What is a key reason for placing resources in private subnets?
AAutomatic scaling
BEnhanced security of resources
CDirect internet access
DSimplified management
Explanation
Private subnets enhance security by restricting direct internet access; other options do not provide security benefits.
Q454
Which service provides a managed encryption key service?
AAWS Key Management Service
BAWS Certificate Manager
CAWS CloudHSM
DAWS Secrets Manager
Explanation
AWS Key Management Service allows for managed encryption key creation and management, while the others serve different purposes.
Q455
A company needs to restrict access to its S3 bucket for an application running only within a specific VPC. What should you implement?
ABucket policy with VPC conditions
BPublic access block
CS3 Transfer Acceleration
DIP address whitelisting
Explanation
A bucket policy with VPC conditions can restrict access based on VPC, unlike the other options which don't provide this specific functionality.
Q456
What happens when an S3 bucket policy allows anonymous write access?
AEveryone can upload files to it
BAccess is denied to all users
COnly IAM users can upload files
DUpload size is limited
Explanation
Anonymous write access means anyone can upload files, which poses significant security risks compared to the other options.
Q457
Which AWS service helps in securely storing secrets?
AAWS Secrets Manager
BAWS CloudTrail
CAWS Config
DAWS CloudWatch
Explanation
AWS Secrets Manager is designed specifically for storing secrets, while others serve different purposes.
Q458
A company needs to restrict network access to its EC2 instances and uses Security Groups. What happens if a new Security Group rule is added to allow inbound traffic on port 80?
AExisting rules are removed automatically
BAll inbound traffic is denied
CTraffic on port 80 is allowed
DInstances are automatically exposed on the internet
Explanation
Adding a rule for port 80 allows HTTP traffic while keeping other rules intact.
Q459
You are configuring IAM roles for an application using AWS Lambda. What is an important principle to follow when assigning permissions?
AAssign full administrative access to Lambda
BUse the least privilege principle
CAllow public access for more flexibility
DGrant permissions based on user requests
Explanation
Using the least privilege principle minimizes security risks by granting only necessary permissions.
Q460
Which AWS service helps manage and automate security audits?
AAWS Security Hub
BAWS Inspector
CAWS CloudTrail
DAWS Config
Explanation
AWS Security Hub aggregates security findings; others focus on specific aspects of security.