A Network Engineer Has Enabled VPC Flow Logs to Troubleshoot

question 99

Multiple Choice

A Network Engineer has enabled VPC Flow Logs to troubleshoot an ICMP reachability issue for an echo reply from an Amazon EC2 instance. The flow logs reveal an ACCEPT record for the request from the client to the EC2 instance, and a REJECT record for the response from the EC2 instance to the client. What is the MOST likely reason for there to be a REJECT record?

• A) The security group is denying inbound ICMP.
• B) The network ACL is denying inbound ICMP.
• C) The security group is denying outbound ICMP.
• D) The network ACL is denying outbound ICMP.

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Definitions:

Aversive Conditioning

A method of behavior modification that involves the use of unpleasant stimuli to reduce or eliminate unwanted behavior.

Systematic Desensitization

A therapeutic technique used to reduce anxiety by gradually exposing the patient to the feared object or situation.

Aversive Conditioning

A method of behavioral training in which an unwanted behavior is associated with discomfort in order to discourage that behavior.

Transference

The process in psychotherapy where patients project feelings and attitudes from a past relationship onto the therapist.