,1. Which AWS service is primarily used for monitoring and
observability of resources?
- A) AWS CloudTrail
- B) Amazon CloudWatch
- C) AWS Config
- D) Amazon S3
Correct Answer: B) Amazon CloudWatch
Rationale: Amazon CloudWatch is a monitoring and
observability service built for DevOps engineers, developers, site
reliability engineers (SREs), and IT managers. It provides data and
actionable insights to monitor applications, respond to system-wide
performance changes, and optimize resource utilization.
2. When developing applications with AWS Lambda, which of the
following features enable functions to connect to AWS resources in
a VPC?
- A) Lambda Environment Variables
- B) VPC Peering
- C) VPC Endpoint
- D) VPC Access
, Correct Answer: D) VPC Access
Rationale: VPC Access allows AWS Lambda functions to
securely access resources inside a VPC, enabling interaction with
services such as RDS, EC2 instances, and others that are inside a
VPC.
3. What is the default consistency model for Amazon S3 when
reading newly created or updated objects?
- A) Strong consistency
- B) Eventual consistency
- C) Last-write consistency
- D) Causal consistency
Correct Answer: A) Strong consistency
Rationale: Amazon S3 provides strong consistency by default
for all GET, PUT, DELETE, and LIST operations. This means
that after a successful write, any subsequent read request
immediately receives the latest version of the object.
Fill-in-the-Blank Questions
4. AWS CodePipeline is a __________ service for fast and reliable
application updates.
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