Module 9 Quiz

A cybersecurity analyst believes an attacker is spoofing the MAC address of the default gateway to perform a man-in-the-middle attack. Which command should the analyst use to view the MAC address a host is using to reach the default gateway? -arp -a -netstat -r -ipconfig /all -route print

arp -a

Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?

it sends the frame to all ports except the port on which it received the frame

A PC is configured to obtain an IPv4 address automatically from network 192.168.1.0/24. The network administrator issues the arp -a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry? -this entry refers to the PC itself -this is a static map entry -this entry maps to the default gateway -this is a dynamic map entry

-this is a static map entry

Which destination address is used in an ARP request frame?

FFFF.FFFF.FFFF

What type of information is contained in an ARP table?

IPv4 address to MAC address mappings

What addresses are mapped by ARP?

IPv4 address to a destination MAC address

The ARP table in a switch maps which two types of address together?

Layer 3 to a Layer 2 address

Which router component holds the routing table, ARP cache, and running configuration file?

RAM

What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table? -it forwards the frame out of all ports except for the port at which the frame was received -it notifies the sending host that the frame cannot be delivered -it initiates an ARP request -it broadcasts the frame out of all ports on the switch

it forwards the frame out of all ports except for the port at which the frame was received

Which two ICMPv6 messages are used during the Ethernet MAC address resolution process? (Choose two.)

neighbor solicitation and advertisement messages

What is one function of the ARP protocol? -mapping a domain name to its IP address -obtaining an IPv4 address automatically -resolving an IPv4 address to a MAC address -maintaining a table of domain names with their resolved IP addresses

resolving an IPv4 address to a MAC address

When an IPv4 packet is sent to a host on a remote network, what information is provided by ARP? -the MAC address of the switch port that connects to the sending host -the IPv4 address of the destination host -the IPv4 address of the default gateway -the MAC address of the router interface closest to the sending host

the MAC address of the router interface closest to the sending host

How does the ARP process use an IPv4 address? -to determine the MAC address of a device on the same network -to determine the MAC address of the remote destination host -to determine the network number based on the number of bits in the IPv4 address -to determine the amount of time a packet takes when traveling from source to destination

to determine the MAC address of a device on the same network

What is the purpose of ARP in an IPv4 network? -to build the MAC address table in a switch from the information that is gathered -to forward data onward based on the destination MAC address -to obtain a specific MAC address when an IP address is known -to forward data onward based on the destination IP address

to obtain a specific MAC address when an IP address is known