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Exam AWS-SysOps topic 1 question 507 discussion

Exam question from Amazon's AWS-SysOps
Question #: 507
Topic #: 1
[All AWS-SysOps Questions]

Fill in the blanks: One of the basic characteristics of security groups for your VPC is that you
______ .

  • A. can specify allow rules as well as deny rules
  • B. can neither specify allow rules nor deny rules
  • C. can specify allow rules, but not deny rules
  • D. can specify deny rules, but not allow rules
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Suggested Answer: C 🗳️
Security Groups in VPC allow you to specify rules with reference to the protocols and ports through which communications with your instances can be established.
One such rule is that you can specify allow rules, but not deny rules.
Reference:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_SecurityGroups.html

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albert_kuo
10 months ago
Selected Answer: C
One of the basic characteristics of security groups for your Virtual Private Cloud (VPC) in AWS is that you can specify allow rules to control inbound and outbound traffic. However, you cannot specify explicit deny rules in security groups. By default, all traffic is denied unless explicitly allowed by the defined rules in the security group.
upvoted 1 times
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TroyMcLure
2 years, 5 months ago
Correct Answer: C
upvoted 2 times
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AWS_Noob
2 years, 6 months ago
Answer is correct. NACL's can allow and Deny rules
upvoted 1 times
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kkkn
2 years, 7 months ago
Answer is C, SG does not support explicit deny rule. It only supports allow rule. By default everything is denied you just mentioned what thing to Allow.
upvoted 3 times
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qrshat
2 years, 7 months ago
Answear - A
upvoted 1 times
Hotmetal
2 years, 6 months ago
No, that is what NACL's can do.
upvoted 1 times
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