Module 9 Practice Flashcards
What destination MAC address would be included in a frame sent from a source device to a destination device on the same local network?
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 a remote local network?
The MAC address of the local router interface.
What two protocols are used to determine the MAC address of a known destination device IP address (IPv4 and IPv6)?
- ARP (IPv4)
-ND (IPv6)
What two functions are provided by ARP? (Choose two.)
- Maintains a table of IPv4 to MAC address mappings
- Resolves IPv4 addresses to MAC addresses
Where is the ARP table stored on a device?
RAM
Which statement is true about ARP?
ARP entries are cached temporarily.
Which command could be used on a Cisco router to view its ARP table?
show ip arp
Which two ICMPv6 messages are used in SLAAC?
- Router Advertisement
- Router Solicitation
What is an attack using ARP?
ARP poisoning
Which two ICMPv6 messages are used in to determine the MAC address of a known IPv6 address?
- Neighbor Advertisement
- Neighbor Solicitation
To what type of address are ICMPv6 neighbor solicitation messages sent?
Multicast
Which destination address is used in an ARP request frame?
FFFF.FFFF.FFFF
Which two ICMPv6 messages are used during the Ethernet MAC address resolution process? (Choose two.)
- neighbor solicitation
- neighbor advertisement
What type of information is contained in an ARP table?
IP address to MAC address mappings
What addresses are mapped by ARP?
destination MAC address to a destination IPv4 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.
A PC is configured to obtain an IP 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.
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 is the purpose of ARP in an IPv4 network?
to obtain a specific MAC address when an IP address is known
What is a function of ARP?
resolving IPv4 addresses to MAC addresses
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.
When an IP 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
How does the ARP process use an IP address?
to determine the MAC address of a device on the same network
The ARP table in a switch maps which two types of address together?
Layer 3 address to a Layer 2 address
What is one function of the ARP protocol?
resolving an IPv4 address to a MAC address
