Can I detach the primary (eth0) network interface when the instance is running or stopped?
A.
Yes, You can.
B.
No. You cannot
C.
Depends on the state of the interface at the time
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B
“You cannot detach a primary network interface from an instance. ”
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html
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0
B.
Each instance in a VPC has a default elastic network interface (the primary network interface, eth0) that is assigned a private IP address from the IP address range of your VPC. You cannot detach a primary network interface from an instance.
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B
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Answer: B
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html
Every instance in a VPC has a default network interface, called the primary network interface (eth0). You cannot detach a primary network interface from an instance.
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B
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Answer is = B
You can create a network interface, attach it to an instance, detach it from an instance, and attach it to another instance. The attributes of a network interface follow it as it’s attached or detached from an instance and reattached to another instance. When you move a network interface from one instance to another, network traffic is redirected to the new instance.
Every instance in a VPC has a default network interface, called the primary network interface (eth0). You cannot detach a primary network interface from an instance. You can create and attach additional network interfaces. The maximum number of network interfaces that you can use varies by instance type
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