On the network shown in the figure, PC1 and PC2 are connected to the same switch (SW1) and belong to the same VLAN.

Which of the following are possible causes of a communication failure between PC1 and PC2?

Options:

Select all that apply.

• A

  SW1's GE0/0/2 is shut down.

• B

  The link of SW1's GE0/0/1 is faulty.

• C

  Incorrect static ARP entries are configured on the hosts.

• D

  Port isolation is configured on SW1.