Refer to the exhibit.
The exhibit shows a diagram of a FortiGate device connected to the network and the firewall policy and IP pool configuration on the FortiGate device.
Which two actions does FortiGate take on internet traffic sourced from the subscribers? (Choose two.)
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Can't be A, because the allocation of ports is based on the external ip ranges, block size and blocks per user. Can't be D, because the 128 port are allocated per block, not per user. So answers are B, and C.