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networking revamped > Module 9 - Address Resolution > Flashcards

Module 9 - Address Resolution Flashcards

1
Q

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 broadcast MAC address of FF-FF-FF-FF-FF-FF.
The MAC address of the destination device.
The MAC address of the local router interface.

A

The MAC address of the destination device.

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2
Q

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

DHCP
ARP
DNS
ND

A
  • ARP
  • ND
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2
Q

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 broadcast MAC address of FF-FF-FF-FF-FF-FF.
The MAC address of the destination device.
The MAC address of the local router interface.

A

The MAC address of the local router interface.

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3
Q

What two functions are provided by ARP? (Choose two.)

Maintains a table of IPv4 address to domain names
Maintains a table of IPv4 to MAC address mappings
Maintains a table of IPv6 to MAC address mappings
Resolves IPv4 addresses to domain names
Resolves IPv4 addresses to MAC addresses
Resolves IPv6 addresses to MAC addresses

A
  • Maintains a table of IPv4 to MAC address mappings
  • Resolves IPv4 addresses to MAC addresses
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4
Q

Where is the ARP table stored on a device?

ROM
flash
NVRAM
RAM

A

RAM

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4
Q

Which statement is true about ARP?

An ARP cache cannot be manually deleted.
ARP entries are cached permanently.
ARP entries are cached temporarily.

A

ARP entries are cached temporarily.

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5
Q

Which command could be used on a Cisco router to view its ARP table?

arp -a
arp -d
show arp table
show ip arp

A

show ip arp

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6
Q

What is an attack using ARP?

ARP broadcasts
ARP hopping attacks
ARP poisoning
ARP starvation

A

ARP poisoning

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7
Q

Which two ICMPv6 messages are used in SLAAC?

Neighbor Advertisement
Neighbor Solicitation
Router Advertisement
Router Solicitation

A
  • Router Advertisement
  • Router Solicitation
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8
Q

Which two ICMPv6 messages are used in to determine the MAC address of a known IPv6 address?

Neighbor Advertisement
Neighbor Solicitation
Router Advertisement
Router Solicitation

A
  • Neighbor Advertisement
  • Neighbor Solicitation
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9
Q

To what type of address are ICMPv6 neighbor solicitation messages sent?

unicast
multicast
broadcast

A

multicast

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10
Q

Which destination address is used in an ARP request frame?

0.0.0.0
255.255.255.255
FFFF.FFFF.FFFF
127.0.0.1
01-00-5E-00-AA-23

A

FFFF.FFFF.FFFF

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11
Q

What addresses are mapped by ARP?

destination MAC address to a destination IPv4 address
destination IPv4 address to the source MAC address
destination IPv4 address to the destination host name
destination MAC address to the source IPv4 address

A

destination MAC address to a destination IPv4 address

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11
Q

What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

It initiates an ARP request.
It broadcasts the frame out of all ports on the switch.
It notifies the sending host that the frame cannot be delivered.
It forwards the frame out of all ports except for the port at which the frame was received.

A

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

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11
Q

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

router solicitation
router advertisement
neighbor solicitation
neighbor advertisement
echo request

A

neighbor solicitation
neighbor advertisement

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12
Q

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

RAM
Flash
NVRAM
ROM

A

RAM

13
Q

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.
This is a dynamic map entry.
This entry refers to the PC itself.
This entry maps to the default gateway.

A

This is a static map entry.

13
Q

What type of information is contained in an ARP table?

switch ports associated with destination MAC addresses
domain name to IP address mappings
routes to reach destination networks
IP address to MAC address mappings

A

IP address to MAC address mappings

14
Q

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?

ipconfig /all
route print
netstat -r
arp -a

A

arp -a

15
Q

What is a function of ARP?

resolving MAC addresses to IPv4 addresses
resolving port addresses to MAC addresses
resolving MAC addresses to port addresses
resolving IPv4 addresses to MAC addresses

A

resolving IPv4 addresses to MAC addresses

16
Q

What is the purpose of ARP in an IPv4 network?

to forward data onward based on the destination IP address
to obtain a specific MAC address when an IP address is known
to forward data onward based on the destination MAC address.
to build the MAC address table in a switch from the information that is gathered.

A

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

17
Q

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

It drops the frame.
It sends the frame to all ports except the port on which it received the frame.
It sends the frame to all ports that are registered to forward broadcasts.
It sends the frame to all ports.

A

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

18
Q

When an IP packet is sent to a host on a remote network, what information is provided by ARP?

the IP address of the destination host
the IP address of the default gateway
the MAC address of the router interface closest to the sending host
the MAC address of the switch port that connects to the sending host

A

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

19
Q

How does the ARP process use an IP address?

to determine the MAC address of the remote destination host
to determine the MAC address of a device on the same network
to determine the amount of time a packet takes when traveling from source to destination
to determine the network number based on the number of bits in the IP address

A

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

20
Q

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

Layer 3 address to a Layer 2 address
Layer 3 address to a Layer 4 address
Layer 4 address to a Layer 2 address
Layer 2 address to a Layer 4 address

A

Layer 3 address to a Layer 2 address

20
Q

What is one function of the ARP protocol?

obtaining an IPv4 address automatically
mapping a domain name to its IP address
resolving an IPv4 address to a MAC address
maintaining a table of domain names with their resolved IP addresses

A

resolving an IPv4 address to a MAC address

networking revamped (13 decks)

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