A.Option C

B.Option B

C.Option A

D.Option D

A.worm

B.malware

C.man-in-the-middle

D.DDoS

A.The router encapsulates the source and destination IP addresses with the sending router IP address as the source and the neighbor IP address as the destination

B.The router replaces the source and destination labels with the sending router interface label as a source and the next hop router label as a destination

C.The router replaces the original source and destination MAC addresses with the sending router MAC address as the source and neighbor MAC address as the destination

D.The router encapsulates the original packet and then includes a tag that identifies the source router MAC address and transmits it transparently to the destination

A.Layer 3 main Interfaces

B.trunk ports

C.access ports

D.Layer 3 suninterfaces

A.to configure an interface as a DHCP helper

B.to configure an interface as a DHCP relay

C.to configure an Interface as a DHCP server

D.to configure an interface as a DHCP client