Suggested Answer:D🗳️
All answers except for Answer D are correct. Answer D is incorrect in that AWS does indeed support Jumbo Frames on all instance types within the T2 family class - including the T2.micro instance type. Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/network_mtu.html
B
T2 micro instance supports Jumbo Frames
[ec2-user@ip-172-31-80-137 ~]$ ip link show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc pfifo_fast state UP mo
Which of the following claims about Jumbo Frames in an AWS VPC environment "is incorrect"?
Answer: D
If an EC2 instance doesn't support jumbo frames, it drops jumbo frames from AWS Direct Connect. All EC2 instance types support jumbo frames except for C1, CC1, T1, and M1. For more information, see Network Maximum Transmission Unit (MTU) for Your EC2 Instance in the Amazon EC2 User Guide for Linux Instances.
https://docs.aws.amazon.com/directconnect/latest/UserGuide/set-jumbo-frames-vif.htm
It is C. Almost all EC2 instance types now support jumbo frames include t2.micro. VPN connections and traffic sent over an internet gateway are limited to 1500 MTU. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/network_mtu.html#jumbo_frame_instances
Jumbo frames apply only to propagated routes from AWS Direct Connect. If you add static routes to a route table that point to your virtual private gateway or transit gateway, then traffic routed through the static routes is sent using 1500 MTU.
If an EC2 instance doesn't support jumbo frames, it drops jumbo frames from AWS Direct Connect. All EC2 instance types support jumbo frames except for C1, CC1, T1, and M1. For more information, see Network Maximum Transmission Unit (MTU) for Your EC2 Instance in the Amazon EC2 User Guide for Linux Instances.
https://docs.aws.amazon.com/directconnect/latest/UserGuide/set-jumbo-frames-vif.html
D. "All current generation instances support jumbo frames. The following previous generation instances support jumbo frames: A1, C3, G2, I2, M3, and R3."
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html
D is false
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html
"All current generation instances support 9001 MTU" (t2 is a current generation instance)
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