batch #4 Flashcards
Which HTTP code indicates a successful upload of an object to Amazon S3
200
Which AWS database service is schema-less and can be scaled dynamically without incurring downtime?
Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. Push button scaling means that you can scale the DB at any time without incurring downtime. DynamoDB is schema-less.
Your company has recently migrated to AWS. How can your CTO monitor the organization’s costs?
AWS Cost Explorer
Which AWS service is designed to be used for operational analytics?
Amazon Elasticsearch Service is involved with operational analytics such as application monitoring, log analytics and clickstream analytics. Amazon Elasticsearch Service allows you to search, explore, filter, aggregate, and visualize your data in near real-time.
What is the name for the top-level container used to hold objects within Amazon S3?
bucket
Which of the authentication options below can be used to authenticate using AWS APIs?
Access keys are long-term credentials for an IAM user or the AWS account root user. You can use access keys to sign programmatic requests to the AWS CLI or AWS API (directly or using the AWS SDK).
Server certificates are SSL/TLS certificates that you can use to authenticate with some AWS services.
Which feature of Amazon S3 enables you to create rules to control the transfer of objects between different storage classes?
Lifecycle management; To manage your objects so that they are stored cost effectively throughout their lifecycle, configure their Amazon S3 Lifecycle. An S3 Lifecycle configuration is a set of rules that define actions that Amazon S3 applies to a group of objects. There are two types of actions:
- Transition actions—Define when objects transition to another storage class. For example, you might choose to transition objects to the S3 Standard-IA storage class 30 days after you created them, or archive objects to the S3 Glacier storage class one year after creating them.
- Expiration actions—Define when objects expire. Amazon S3 deletes expired objects on your behalf. The lifecycle expiration costs depend on when you choose to expire objects.
Which of the following acts as a virtual firewall at the Amazon EC2 instance level to control traffic for one or more instances?
Security Groups; A security group is an instance-level firewall that can be used to control traffic the that reaches (ingress/inbound) and is sent out from (egress/outbound) your EC2 instances. Rules are created for inbound or outbound traffic. A security group can be attached to multiple EC2 instances.
You need to connect your company’s on-premise network into AWS and would like to establish an AWS managed VPN service. Which of the following configuration items needs to be setup on the Amazon VPC side of the connection?
A virtual private gateway is the VPN concentrator on the Amazon side of the VPN connection. You create a virtual private gateway and attach it to the VPC from which you want to create the VPN connection.
A Cloud Practitioner is creating the business process workflows associated with an order fulfilment system. Which AWS service can assist with coordinating tasks across distributed application components?
Amazon Simple Workflow Service (SWF) is a web service that makes it easy to coordinate work across distributed application components. SWF enables applications for a range of use cases, including media processing, web application back-ends, business process workflows, and analytics pipelines, to be designed as a coordination of tasks.
Which type of AWS database is ideally suited to analytics using SQL queries?
Amazon Redshift is a fast, fully managed data warehouse that makes it simple and cost-effective to analyze all your data using standard SQL and existing Business Intelligence (BI) tools. RedShift is a SQL based data warehouse used for analytics applications.
Which AWS service provides the ability to detect inadvertent data leaks of personally identifiable information (PII) and user credential data?
Amazon Macie is a fully managed data security and data privacy service that uses machine learning and pattern matching to discover and protect your sensitive data in Amazon S3.
Macie applies machine learning and pattern matching techniques to the Amazon S3 buckets you select to identify and alert you to sensitive data, such as personally identifiable information (PII).
What is the most efficient way to establish network connectivity from on-premises to multiple VPCs in different AWS Regions?
AWS Transit Gateway is a service that enables customers to connect their Amazon Virtual Private Clouds (VPCs) and their on-premises networks to a single gateway.
How can a systems administrator specify a script to be run on an EC2 instance during launch?
User data
Which AWS service makes it easy to coordinate the components of distributed applications as a series of steps in a visual workflow
AWS Step Functions lets you coordinate multiple AWS services into serverless workflows so you can build and update apps quickly. AWS Step Functions lets you build visual workflows that enable fast translation of business requirements into technical requirements.
