An E-Commerce Site Allows Returning Users to Log in to Display

question 67

Multiple Choice

An e-commerce site allows returning users to log in to display customized web pages. The workflow is shown in the image below: An application is running on EC2 instances. Amazon RDS is used for the database that stores user accounts and preferences. The website freezes or is slow to load while waiting for the login step to complete. The remaining components of the site are well-optimized. Which of the following techniques will resolve this issue? (Choose two.)

• A) Implement the user login page as an asynchronous Lambda function.
• B) Use Amazon ElastiCache for MemCached to cache user data.
• C) Use an Amazon Application Load Balancer to load balance the traffic to the website.
• D) Call the database asynchronously so the code can continue executing.
• E) Batch login requests from hundreds of users together as a single read request to the database.

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Definitions:

Historical Rate

refers to the exchange rates used to convert foreign currency transactions or balances to the reporting currency based on the rates in effect at the dates of the transactions or balance sheet dates.

Non-Monetary Assets

Assets that are not held in the form of cash or cash equivalents, such as property, equipment, and intangible assets.

Temporal Method

An accounting technique used for currency translation that uses exchange rates based on the time assets and liabilities are acquired or incurred.

Functional Currency

The currency of the primary economic environment in which an entity operates and generates cash flows.