What does Amazon EBS stand for?
D
Amazon EBS stands for Elastic Block Store. It is a persistent storage that allows you to store the data of the Amazon EC2 Instances in a separated virtual storage automatically replicated within its Availability Zone in order to prevent component failure; with Amazon EBS the customer can add more storage every time they need it, and also add more performances with Amazon EBS Provi-sioned IOPS.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AmazonEBS.html
EBS (Elastic Block Store) can be best described as:
B
Amazon Elastic Block Store (Amazon EBS) provides block level (file system type) storage volumes for use with Amazon EC2 instances. Amazon EBS volumes are highly available and reliable storage volumes that can be attached to any running instance that is in the same Availability Zone. Amazon EBS volumes that are attached to an Amazon EC2 instance are exposed as storage volumes that persist independently from the life of the instance.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AmazonEBS.html
In Amazon RDS, which of the following provides enhanced availability and durability for Database (DB) Instances, making them to be a natural fit for production database workloads?
C
Amazon RDS Multi-AZ deployments provide enhanced availability and durability for Database (DB) Instances, making them a natural fit for production database workloads. When you provision a Multi-AZ DB Instance, Amazon RDS automatically creates a primary DB Instance and synchro-nously replicates the data to a standby instance in a different Availability Zone (AZ). Each AZ runs on its own physically distinct, independent infrastructure, and is engineered to be highly reliable.
Reference:
http://aws.amazon.com/rds/multi-az/
The Amazon Linux AMI is:
D
The Amazon Linux AMI is a supported and maintained Linux image provided by AWS. It is updat-ed on a regular basis to include the latest components, and these updates are also made available in the yum repositories for installation on running instances. The Amazon Linux AMI also Includes packages that enable easy integration with AWS services, such as the AWS CLI, Amazon EC2 API and AMI tools, the Boto library for Python, and the Elastic Load Balancing tools.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AMIs.html#amazon-linux
___________ is a fully managed service for real-time processing of streaming data at massive scale.
B
Amazon Kinesis is a fully managed service for real-time processing of streaming data at massive scale. Amazon Kinesis can collect and process hundreds of terabytes of data per hour from hun-dreds of thousands of sources, allowing you to easily write applications that process information in real-time from sources such as web site click-streams, marketing and financial information, manufac-turing instrumentation and social media, and operational logs and metering data.
Reference:
http://docs.aws.amazon.com/mobile/sdkforandroid/developerguide/kinesis.html
In Amazon S3, what is the document that defines who can access a particular bucket or object called?
C
Access Control List is the document that defines who can access a particular bucket or object in Amazon S3. Amazon S3 Access Control Lists (ACLs) enable you to manage access to buckets and objects. Each bucket and object has an ACL attached to it as a subresource. It defines which AWS accounts or groups are granted access and the type of access.
Reference:
http://docs.aws.amazon.com/AmazonS3/latest/dev/acl-overview.html
Where is an object stored in Amazon S3?
A
Every object in Amazon S3 is stored in a bucket. Before you can store data in Amazon S3, you must create a bucket.
Reference:
http://docs.aws.amazon.com/AmazonS3/latest/gsg/CreatingABucket.html
Which AWS service offers cost optimization by launching instances automatically only when need-ed?
C
AWS Auto Scaling can launch instances based on certain criteria. This provides cost optimization to the user as it will only launch the instance when required, thereby resulting in cost saving.
Reference:
http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/WhatIsAutoScaling.html
What does Amazon SWF stand for?
C
Amazon Simple Workflow Service (SWF) provides the glue needed by your application to coordi-nate several tasks. These tasks are tackled by several instances coordinating aspects like the depend-encies between them.
Reference:
http://aws.amazon.com/swf/
In Amazon EC2, can you create an EBS volume from a snapshot and attach it to another instance?
D
To keep a backup copy of your data, you can create a snapshot of an EBS volume, which is stored in Amazon S3. You can create an EBS volume from a snapshot, and attach it to another instance.
Reference:
http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/Storage.html
