WorksheetsCloud Architecting - Week 10
Total questions: 20
Worksheet time: 20mins
Which of the following is not one of the four areas of the Performance Efficiency pillar of the AWS Well-Architected Framework?
Tradeoffs
Selection
Traceability
Monitoring
Which of the following is a principle when designing cloud-based systems?
Build tightly-coupled components
Make infrequent, large batch changes
Assume everything will fail
Use as many services as possible
Which of the following are pillars of the AWS Well-Architected Framework? (Choose three)
Security
Operational Excellence
Cost Optimization
Persistence
Which design principles are recommended when considering performance efficiency? (Choose 2)
Match supply with demand
Analyze and attribute expenditure
Use serverless architecture
Democratize advanced technologies
AWS Trusted Advisor provides insight regarding which five categories of an AWS account?
Security, fault tolerance, high availability, connectivity, service limits
Security, access control, high availability, performance, service limits
Performance, cost optimization, access control, connectivity, security
Performance, cost optimization, security, fault tolerance, service limits
The AWS Well-Architected Framework is organized into how many pillars?
3
4
5
None of the above
After you move to the AWS Cloud, you want to ensure that the right security settings are put in place.Which online tool can assist in security compliance?
Amazon Kinesis
AWS Support
AWS Trusted Advisor
Amazon CloudWatch
Which of the following is a measure of your system's ability to provide functionality when desired by the user?
Availability
Fault Tolerance
Reliability
Performance efficiency
What is defined as the ability for a system to remain operational even if some of the components of that system fail?
High durability
Fault tolerance
High availability
Which of the following best describes a system that can withstand some measures of degradation, experiences minimal downtime, and requires minimal human intervention?
Scalable
Fault-tolerant
Elastic
High available
Which statement about Amazon EC2 Auto Scaling is accurate?
It requires the customer to purchase Reserved Instances.
It can launch Amazon EC2 instances in multiple Availability Zones.
It can launch Amazon EC2 instances, but customers must terminate instances after they they are no longer needed.
It can only launch new Amazon EC2 instances based on a schedule.
You detected that the demand on a fleet of Amazon EC2 instances in an Auto Scaling group increases by a set amount each day. Which type of scaling is the most appropriate for this scenario?
Scheduled
Dynamic
Predictive
Manual
A fleet of Amazon EC2 instances are launched in an Auto Scaling group behind an Elastic Load Balancing load balancer. The EC2 instances must maintain 50 percent average CPU utilisation. Which type of scaling provides the simplest way to achieve the requirement?
Step scaling
Simple scaling
Target tracking scaling
Manual scaling
How do you vertically scale an Amazon RDS database?
By adding read replicas
By creating dedicated read and write nodes
By sharding the database
By changing the instance class
How do you horizontally scale an Amazon Aurora database?
By adding Aurora Replica instances
By increasing the size of the buffer cache configuration
By creating Amazon CloudWatch alarms
By changing the instance type
How does Amazon DynamoDB perform automatic scaling?
It adds and removes database instances in response to changes in traffic.
It adds read replicas in response to increased read demand.
It adjusts the provisioned throughput capacity in response to traffic patterns.
It changes the instance type in response to changes in processing load.
A fleet of Amazon EC2 instances launch in an Auto Scaling group. The instances run an application that uses a custom protocol on TCP port 42000. Connections from client systems on the internet must balance across the instances. Which load balancing solution ensures the highest availability?
Round-robin dns
Application Load Balancer
Network Load Balancer
Instance-based load balancer
Users in location A connect to an application in Region A. Users in location B connect to the same application in Region B. If the application in Region A becomes unhealthy, clients in location A must be redirected to the application in Region B. Which solution can meet this requirements?
Use an Application Load Balancer with Amazon CloudWatch alarms.
Use geolocation routing with failover records in Amazon Route 53.
Use latency-based routing in Amazon Route 53 with Amazon CloudWatch alarms.
Use geoproximity routing and a Network Load Balancer that is attached to both Regions.
A company must build a highly available website that uses server-side scripts to serve dynamic HTML. Which solution provides the highest availability for the least cost and complexity?
An Auto Scaling group launches Amazon EC2 instances, which are served by an Application Load Balancer. DNS name resolution points to the load balancer.
Amazon S3 hosts the website. DNS name resolution points to the S3 bucket.
An Auto Scaling group launches Amazon EC2 instances, which are served by a Network Load Balancer. Amazon Route 53 uses latency-based routing.
A second web server is deployed in another Region. Amazon Route 53 uses failover routing for disaster recovery (DR).
You have created an AWS account for your own personal development and testing. You want your account to stay within the AWS Free Tier and to not generate unexpected costs. Which approach will work and requires the least effort?
Log in to the AWS Management Console each month and check your billing dashboard.
Create a service control policy (SCP) to restrict all service that are not included in the AWS Free Tier.
Create an Amazon CloudWatch alarm to sent you an email message when the account billing exceeds $0.
Create an Amazon CloudWatch metric to monitor account billing and limit it to $0.
