| Question.46 Which of the following is a recommended design principle for AWS Cloud architecture? (A) Design tightly coupled components. (B) Build a single application component that can handle all the application functionality. (C) Make large changes on fewer iterations to reduce chances of failure. (D) Avoid monolithic architecture by segmenting workloads. |
46. Click here to View Answer
Answer is (D) Avoid monolithic architecture by segmenting workloads.
There are various AWS services that enable you to build applications that adopt a decoupled architecture design. This enables you to move away from traditional monolithic design in favor of the more modern microservice architectures.
Reference:
Link to prove Option C is wrong
https://docs.aws.amazon.com/wellarchitected/latest/framework/oe-design-principles.html
Link to prove Option D is correct:
https://docs.aws.amazon.com/wellarchitected/latest/reliability-pillar/design-your-workload-service-architecture.html
| Question.47 Which of the following is a component of the AWS Global Infrastructure? (A) Amazon Alexa (B) AWS Regions (C) Amazon Lightsail (D) AWS Organizations |
47. Click here to View Answer
Answer is (B) AWS Regions
AWS Global Infrastructure:
– AWS Regions
– AWS Availability Zones
– AWS Data Centers
– AWS Edge Locations
Reference:
https://aws.amazon.com/about-aws/global-infrastructure/
| Question.48 Which of the following are Amazon Virtual Private Cloud (Amazon VPC) resources? (A) Objects; access control lists (ACLs) (B) Subnets; internet gateways (C) Access policies; buckets (D) Groups; roles |
48. Click here to View Answer
Answer is (B) Subnets; internet gateways
Components of Amazon VPC
– A Virtual Private Cloud: A logically isolated virtual network in the AWS cloud. You define a VPC’s IP address space from the ranges you select.
– Subnet: A segment of a VPC’s IP address range where you can place groups of isolated resources.
– Internet Gateway: The Amazon VPC side of a connection to the public Internet.
– NAT Gateway: A highly available, managed Network Address Translation (NAT) service for your resources in a private subnet to access the Internet.
– Route Table: A route table contains a set of rules, called routes, that are used to determine where network traffic from your subnet or gateway is directed.
– DNS Hostname: The Amazon DNS server resolves a public DNS hostname to the public IPv4 address of the instance outside the network of the instance.
– CIDR: Classless Inter-Domain Routing
Reference:
https://varunmanik1.medium.com/how-to-create-aws-vpc-in-10-steps-less-than-5-min-a49ac12064aa
| Question.49 Which design principle is included in the operational excellence pillar of the AWS Well-Architected Framework? (A) Create annotated documentation. (B) Anticipate failure. (C) Ensure performance efficiency. (D) Optimize costs. |
49. Click here to View Answer
Answer is (B) Anticipate failure.
AWS Well-Architected Framework:
1. Perform operations as code
2. Make frequent, small, reversible changes
3. Refine operations procedures frequently
4. Anticipate failure
5. Learn from all operational failures
Anticipate failure: Perform ‘pre-mortem’ exercises to identify potential sources of failure so that they can be removed or mitigated. Test your failure scenarios and validate your understanding of their impact. Test your response procedures to ensure they are effective and that teams are familiar with their process. Set up regular game days to test workload and team responses to simulated events.
Reference:
https://docs.aws.amazon.com/wellarchitected/latest/operational-excellence-pillar/operational-excellence.html
https://docs.aws.amazon.com/wellarchitected/latest/operational-excellence-pillar/design-principles.html
| Question.50 Which of the following is the customer responsible for updating and patching, according to the AWS shared responsibility model? (A) Amazon FSx for Windows File Server (B) Amazon WorkSpaces virtual Windows desktop (C) AWS Directory Service for Microsoft Active Directory (D) Amazon RDS for Microsoft SQL Server |
50. Click here to View Answer
Answer is (B) Amazon WorkSpaces virtual Windows desktop
We recommend that you regularly patch, update, and secure the operating system and applications on your WorkSpaces. You can configure your WorkSpaces to be updated by WorkSpaces during a regular maintenance window or you can update them yourself.
Reference:
https://docs.aws.amazon.com/workspaces/latest/adminguide/update-management.html