A Developer Has Been Asked to Build a Real-Time Dashboard

question 280

Multiple Choice

A Developer has been asked to build a real-time dashboard web application to visualize the key prefixes and storage size of objects in Amazon S3 buckets. Amazon DynamoDB will be used to store the Amazon S3 metadata. What is the optimal and MOST cost-effective design to ensure that the real-time dashboard is kept up to date with the state of the objects in the Amazon S3 buckets?

• A) Use an Amazon CloudWatch event backed by an AWS Lambda function. Issue an Amazon S3 API call to get a list of all Amazon S3 objects and persist the metadata within DynamoDB. Have the web application poll the DynamoDB table to reflect this change.
• B) Use Amazon S3 Event Notification backed by a Lambda function to persist the metadata into DynamoDB. Have the web application poll the DynamoDB table to reflect this change.
• C) Run a cron job within an Amazon EC2 instance to list all objects within Amazon S3 and persist the metadata into DynamoDB. Have the web application poll the DynamoDB table to reflect this change.
• D) Create a new Amazon EMR cluster to get all the metadata about Amazon S3 objects; persist the metadata into DynamoDB. Have the web application poll the DynamoDB table to reflect this change.

Comprehend the legal power of the original offeree in accepting an offer and creating a contract.

Understand the implication of grumbling acceptance and its effect on contract formation.

Learn the objective and subjective criteria used in determining the intent to accept offers.

Grasp the role and application of the Uniform Commercial Code (UCC) in altering traditional rules of offer and acceptance.

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Definitions:

L-Valine

An essential amino acid with a branched-chain structure, important in protein synthesis and metabolic processes.

pH

A scale used to specify the acidity or basicity of an aqueous solution, with values less than 7 indicating acidity and values greater than 7 indicating basicity.

Disulfide Bridges

Covalent bonds between sulfur atoms of two cysteine residues within or between protein molecules, crucial for protein structure.

Cysteic Acid

An oxidized sulfur-containing amino acid, derived from cysteine, notable for its role in certain biological processes and protein structure.