Which of the following is a true statement, if you have changed the MTU on a VLAN to support jumbo frames?

A. If a normal MTU of 1528 is used, the switch will not forward the traffic.
B. Once jumbo frames are configured, nothing more needs to be done. Clients will auto-detect the new MTU and use jumbo frames.
C. Changing the MTU is an easy and effective method for raising speed.
D. For jumbo frames to be effective, all devices on the VLAN, including switches, must support them.

D. When the MTU is changed on the VLAN, it has little consequence to normal MTU communications. However, if you are going to utilize the new MTU for something like iSCSI, it must be supported end to end or it can actually decrease performance. All switching equipment between the two end devices must support jumbo frames.