cisco module 9

Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on? (Choose two.)

• The destination address in the frame is a known unicast address.

• The frame has the broadcast address as the destination address.

• The source address in the frame header is the broadcast address.

• The destination address is unknown to the switch.

• The source address in the frame is a multicast address.

If the packet's destination IPv4 address is on the same network as the source IPv4 address, the device will search the ARP table

• for the destination IPv4 address and the corresponding MAC address

• for the source IPv4 address and the corresponding MAC address

• for the IPv4 address of the default gateway and the corresponding MAC address

What property of ARP allows hosts on a LAN to send traffic to remote networks?

• The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.

• The source MAC address appears in the header of the Ethernet frame.

• Local hosts learn the MAC address of the default gateway.

• ARP replies are broadcast on the network when a host receives an ARP request.

What two protocols are used to determine the MAC address of a known destination device IP address (IPv4 and IPv6)?

• ND

• DNS

• DHCP

• ARP

ARP reply is

• Broadcast

• Multicast

• Unicast

• Anycast

Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?

• The switch will forward the frame to all ports except port 4.

• The switch will forward the frame only to ports 1 and 3.

• The switch will forward the frame only to port 2.

• The switch will forward the frame to all ports.

• The switch will discard the frame.

What is the aim of an ARP spoofing attack?

• to overwhelm network hosts with ARP requests

• to fill switch MAC address tables with bogus (fake) addresses

• to associate IP addresses to the wrong MAC address

• to flood the network with ARP reply broadcasts

Where are IPv4 address to Layer 2 Ethernet address mappings maintained on a host computer?

• ARP cache

• routing table

• MAC address table

• neighbor table

What property of ARP causes a reply only to the source sending an ARP request?

• The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.

• The source MAC address appears in the header of the Ethernet frame.

• ARP replies are broadcast on the network when a host receives an ARP request.

• The type field 0x806 appears in the header of the Ethernet frame.

If the destination IPv4 address is on a different network than the source IPv4 address, the device will search the ARP table

• for the destination IPv4 address and the corresponding MAC address

• for the IPv4 address of the default gateway and the corresponding MAC address

• for the source IPv4 address and the corresponding MAC address