Module 9: Address Resolution

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

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

b. multicast

To what type of address are ICMPv6 neighbor solicitation messages sent? a. unicast b. multicast c. broadcast

d. neighbor advertisement e. router solicitation

Which two ICMPv6 messages are used during the Ethernet MAC address resolution process? (Choose two.) a. router advertisement b. neighbor solicitation c. echo request d. neighbor advertisement e. router solicitation

b. arp -a

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? a. netstat -r b. arp -a c. ipconfig /all d. route print

c. The MAC address of the local router interface.

What destination MAC address would be included in a frame sent from a source device to a destination device on a remote local network? a. A broadcast MAC address of FF-FF-FF-FF-FF-FF. b. The MAC address of the destination device. c. The MAC address of the local router interface.

b. The MAC address of the destination device.

What destination MAC address would be included in a frame sent from a source device to a destination device on the same local network? a. A broadcast MAC address of FF-FF-FF-FF-FF-FF. b. The MAC address of the destination device. c. The MAC address of the local router interface.

c. ARP poisoning

What is an attack using ARP? a. ARP broadcasts b. ARP hopping attacks c. ARP poisoning d. ARP starvation

d. resolving an IPv4 address to a MAC address

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

b. Maintains a table of IPv4 to MAC address mappings e. Resolves IPv4 addresses to MAC addresses

What two functions are provided by ARP? (Choose two.) a. Maintains a table of IPv4 address to domain names b. Maintains a table of IPv4 to MAC address mappings c. Maintains a table of IPv6 to MAC address mappings d. Resolves IPv4 addresses to domain names e. Resolves IPv4 addresses to MAC addresses f. Resolves IPv6 addresses to MAC addresses

b. ARP d. ND

What two protocols are used to determine the MAC address of a known destination device IP address (IPv4 and IPv6)? a. DHCP b. ARP c. DNS d. ND

d. RAM

Where is the ARP table stored on a device? a. ROM b. flash c. NVRAM d. RAM

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

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

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

Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame? a. It drops the frame. b. It sends the frame to all ports. c. It sends the frame to all ports that are registered to forward broadcasts. d. It sends the frame to all ports except the port on which it received the frame.

d. show ip arp

Which command could be used on a Cisco router to view its ARP table? a. arp -a b. arp -d c. show arp table d. show ip arp

d. RAM

Which router component holds the routing table, ARP cache, and running configuration file? a. ROM b. Flash c. NVRAM d. RAM

c. router advertisement d. router solicitation

Which two ICMPv6 messages are used in SLAAC? a. neighbor advertisement b. neighbor solicitation c. router advertisement d. router solicitation

a. neighbor advertisement b. neighbor solicitation

Which two ICMPv6 messages are used in to determine the MAC address of a known IPv6 address? a. neighbor advertisement b. neighbor solicitation c. router advertisement d. router solicitation

a. Layer 3 address to a Layer 2 address

The ARP table in a switch maps which two types of address together? a. Layer 3 address to a Layer 2 address b. Layer 3 address to a Layer 4 address c. Layer 4 address to a Layer 2 address d. Layer 2 address to a Layer 4 address

c. IPv4 address to a destination MAC address

What addresses are mapped by ARP? a. destination IPv4 address to the source MAC address b. destination IPv4 address to the destination host name c. IPv4 address to a destination MAC address d. destination MAC address to the source IPv4 address

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

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

a. IPv4 address to MAC address mappings

What type of information is contained in an ARP table? a. IPv4 address to MAC address mappings b. switch ports associated with destination MAC addresses c. domain name to IPv4 address mappings d. routes to reach destination networks

d. This is a static map entry.

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? a. This entry maps to the default gateway. b. This is a dynamic map entry. c. This entry refers to the PC itself. d. This is a static map entry.

c. It forwards the frame out of all ports except for the port at which the frame was received.

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

b. FFFF.FFFF.FFFF

Which destination address is used in an ARP request frame? a. 127.0.0.1 b. FFFF.FFFF.FFFF c. 01-00-5E-00-AA-23 d. 0.0.0.0 e. 255.255.255.255

c. ARP entries are cached temporarily.

Which statement is true about ARP? a. An ARP cache cannot be manually deleted. b. ARP entries are cached permanently. c. ARP entries are cached temporarily.