A Web Service Runs on Amazon EC2 Instances Behind an Elastic

question 644

Multiple Choice

A web service runs on Amazon EC2 instances behind an Elastic Load Balancing (ELB) load balancer. External clients must whitelist specific public IP addresses in their firewalls to access the service. What load balancer or ELB feature should be used for this application?

• A) Network Load Balancer
• B) Application Load Balancer
• C) Classic Load Balancer
• D) Load balancer target groups

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Definitions:

Low Explosive

A substance capable of exploding at a slower rate, primarily used for propellants and pyrotechnics, compared to high explosives which detonate.

Organic Solid

A solid material composed of organic compounds, which consist of carbon atoms bonded together in chains or rings.

Oxygen Balance

Oxygen balance is a concept in chemistry, particularly in the analysis of explosive materials, referring to the ratio between the oxygen available and required for complete oxidation of the combustible components of a compound.

Kinetic-Molecular Theory

The kinetic-molecular theory explains the behavior of gases, including their volume, temperature, and pressure, based on the idea that gases consist of small particles in random motion.