Your web application front end consists of multiple EC2 instances behind an Elastic Load Balancer. You configured ELB to perform health checks on these EC2 instances, if an instance fails to pass health checks, which statement will be true?
A. The instance gets terminated automatically by the ELB
B. The instance gets quarantined by the ELB for root cause analysis.
C. The instance is replaced automatically by the ELB
D. The ELB stops sending traffic to the instance that failed its health check.
Answer: D. The ELB stops sending traffic to the instance that failed its health check.
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Which of the following statements is false?
a. Some event-listener interfaces are functional interfaces. b. For such interfaces as mentioned in (a), you can implement event handlers with lambdas. c. For a simple event handler, a lambda significantly reduces the amount of code you need to write. d. All of the above are true.
The accompanying figure represents the ____ alpha channel.
A. Background B. Dark Gray C. Light Gray D. Composite
____________________ is designed for the idea of port authentication-the concept of allowing remote users authentication to a particular point of entry (a port) to another network.
Fill in the blank(s) with the appropriate word(s).
What is a thread in android?
A - Same as services B - Background activity C - Broadcast Receiver D - Independent dis-patchable unit is called a thread