A Company Uses an Amazon EMR Cluster to Process Data

question 460

Multiple Choice

A company uses an Amazon EMR cluster to process data once a day. The raw data comes from Amazon S3, and the resulting processed data is also stored in Amazon S3. The processing must complete within 4 hours; currently, it only takes 3 hours. However, the processing time is taking 5 to 10 minutes. longer each week due to an increasing volume of raw data. The team is also concerned about rising costs as the compute capacity increases. The EMR cluster is currently running on three m3 xlarge instances (one master and two core nodes) . Which of the following solutions will reduce costs related to the increasing compute needs?

• A) Add additional task nodes, but have the team purchase an all-upfront convertible Reserved Instance for each additional node to offset the costs.
• B) Add additional task nodes, but use instance fleets with the master node in on-Demand mode and a mix of On-Demand and Spot Instances for the core and task nodes. Purchase a scheduled Reserved Instances for the master node.
• C) Add additional task nodes, but use instance fleets with the master node in Spot mode and a mix of On-Demand and Spot Instances for the core and task nodes. Purchase enough scheduled Reserved Instances to offset the cost of running any On-Demand instances.
• D) Add additional task nodes, but use instance fleets with the master node in On-Demand mode and a mix of On-Demand and Spot Instances for the core and task nodes. Purchase a standard all-upfront Reserved Instance for the master node.

Grasp the implications of market interest rate changes on bond prices and yields.

Recognize the tax advantages of certain bonds, specifically municipal versus corporate bonds.

Understand the quoting conventions for Treasury bonds and how to calculate purchase and selling prices.

Assess the impact of interest rate volatility on bond preferences and the factors affecting bond investment decisions.

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Definitions:

Formal Business Plan

A detailed document that outlines the strategy, objectives, and financial forecasts for a business.

Financial Projection

Financial projection is an estimate of future revenues, expenses, and profitability of a business or project.

Sequence

An ordered collection of objects, actions, or events where one follows another in a specific arrangement.

Informational Report

A detailed and factual presentation of information on a particular subject, aimed at providing comprehensive understanding without offering opinions.