What does the following command do with respect to the Amazon EC2 security groups? ec2-revoke RevokeSecurityGroupIngress

A. Removes one or more security groups from a rule.
B. Removes one or more security groups from an Amazon EC2 instance.
C. Removes one or more rules from a security group.
D. Removes a security group from our account.

Answer: C. Removes one or more rules from a security group.

Computer Science & Information Technology

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When technicians at tier 1 run out of ideas and cannot think of another theory of probably cause, they ________ the issue

a. Increase b. Reprioritize c. Escalate d. None of the above

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Software must be specifically written to take advantage of dual- or quad-core CPUs

Indicate whether the statement is true or false

Computer Science & Information Technology