Udemy Practice Exam 1 Flashcards
When you use AWS Shield Standard with what services
you receive comprehensive availability protection against all known infrastructure (Layer 3 and 4) attacks. (Select 2)
-CloudFront
-Route 53
You can subscribe to AWS Shield Advanced applications running on
-Amazon Elastic Compute Cloud (EC2)
-Elastic Load Balancing (ELB)
-Amazon CloudFront
-AWS Global Accelerator
-Amazon Route 53
Unified user interface so you can view operational data from multiple AWS services and allows you to automate operational tasks across your AWS resources.
AWS Systems Manager
AWS Web Application Firewall (WAF) offers protection from common web exploits at which layer?
Layer 7
Monitor the HTTP and HTTPS requests that are forwarded to an Amazon API Gateway API, Amazon CloudFront or an Application Load Balancer.
AWS Web Application Firewall (WAF)
is the Network layer and this layer decides which physical path data will take when it moves on the network. AWS Shield offers protection at this layer.
Layer 3
is the Transport layer and this layer data transmission occurs using TCP or UDP protocols. AWS Shield offers protection at this layer.
Layer 4
AWS Shield Advanced provides expanded DDoS attack protection for web applications running on which of the following resources?
-Route 53
-Global Accelerator
-Cloud Formation
-EC2
-ELB
A research group wants to use EC2 instances to run a scientific computation application that has a fault-tolerant architecture. The application needs high-performance hardware disks that provide fast I/O performance. As a Cloud Practitioner, which of the following storage options would you recommend as the MOST cost-effective solution?
Instance Store
Storage available as a hardware disk
Instance Store
high-performance block storage service designed for use with Amazon Elastic Compute Cloud (EC2) for both throughput and transaction-intensive workloads at any scale.
EBS Amazon Elastic Block Store
The performance of AWS managed RDS instance is better than a customer-managed databases instance (T or F)
True
DS instances are optimized for memory, performance, or I/O,
Services that can have reservations
-EC2
-DynamoDB
-RDS
-Elastic Cache
-RedShift
What services does AWS Inspector scan
-EC2
-Lambda
-Containarised workloads
How many AZ in a region
Minimum 3
How many discrete data centers in an AZ
1 or more
Reserved instance significant savings
75%
Spot instance significant savings
90%
A data analytics company is running a proprietary batch analytics application on AWS and wants to use a storage service which would be accessed by hundreds of EC2 instances simultaneously to append data to existing files. As a Cloud Practitioner, which AWS service would you suggest for this use-case?
-S3
-EFS
-EBS
-Instance Store
and why
-EFS
-EBS and Instance Store can’t be accessed simultaneously by multiple EC2
-S3 doesn’t support file appending
EBS vs. Instance Store
Instance store is a physical hardware disk
Doesn’t persist through instance stops or failures.