module 9

. 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

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.

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

• neighbor solicitation

• neighbor advertisement

How does the ARP process use an IPv4 address?

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

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

• RAM

What type of information is contained in an ARP table?

• IPv4 address to MAC address mappings

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 is a static map entry.

What is one function of the ARP protocol?

• resolving an IPv4 address to a MAC address

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.

Which destination address is used in an ARP request frame?

• FFFF.FFFF.FFFF

What addresses are mapped by ARP?

• IPv4 address to a destination 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 router interface closest to the sending host

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

• Layer 3 address to a Layer 2 address

What is the purpose of ARP in an IPv4 network?

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