How many usable IP addresses does a /25 network have?
254
62
126
510
1024 - Answers usable IP addresses
Which of the options below are valid subnet sizes within a VPC? (Choose 2)
/16
/30
/28
,/12
/8
/4 - Answers
You look at a VPC flow log and see that traffic for an EC2 instance has been both ALLOWED and DENIED.
Which of the following can explain this occurrence?
The ENI has a SG attached which explicitly blocked the traffic.
The traffic was allowed through a NACL, but then not allowed through a security group.
The ENI has a NACL attached which explicitly blocked the traffic.
The traffic has been explicitly DENIED by a security group.
It cant: traffic is either ALLOWED or DENIED. - Answers
True or False: a placement group is locked to an AZ when created.
, False
True - Answers
Given this network (10.0.0.0/25), what is the first and last address (network and broadcast)?
10.0.0.0 and 10.0.0.127
10.0.0.1 and 10.0.0.255
10.0.0.0 and 10.0.0.128
10.0.0.0 and 10.0.0.255 - Answers
Do VPC Flow Logs deliver real-time data?
It depends on the region.
If you select lambda-backed flow logs.