Podcast
Questions and Answers
Which protocol is used by IPv6 for address resolution?
Which protocol is used by IPv6 for address resolution?
- DHCPv6
- ICMPv6 (correct)
- ARP
- RARP
What is the primary function of the Address Resolution Protocol (ARP)?
What is the primary function of the Address Resolution Protocol (ARP)?
- To resolve an IPv4 address to a MAC address (correct)
- To monitor network traffic
- To route packets between networks
- To assign IP addresses
What type of Ethernet and IPv6 multicast addresses are used to send ICMPv6 Neighbor Solicitation messages?
What type of Ethernet and IPv6 multicast addresses are used to send ICMPv6 Neighbor Solicitation messages?
- Broadcast addresses
- Unicast addresses
- Special Ethernet and IPv6 multicast addresses (correct)
- Anycast addresses
Which layer of the OSI model does ARP operate at?
Which layer of the OSI model does ARP operate at?
What type of address does ARP resolve?
What type of address does ARP resolve?
Which of the following commands displays the current ARP cache on a Windows machine?
Which of the following commands displays the current ARP cache on a Windows machine?
Who can remove ARP table entries manually?
Who can remove ARP table entries manually?
What happens to ARP entries in the ARP table after a specified period of time?
What happens to ARP entries in the ARP table after a specified period of time?
What is the purpose of ICMPv6 Neighbor Solicitation (NS) messages in IPv6 Neighbor Discovery?
What is the purpose of ICMPv6 Neighbor Solicitation (NS) messages in IPv6 Neighbor Discovery?
What is a mitigation technique used by enterprise-level switches to protect against ARP attacks?
What is a mitigation technique used by enterprise-level switches to protect against ARP attacks?
How do IPv6 devices resolve the MAC address of a known IPv6 address?
How do IPv6 devices resolve the MAC address of a known IPv6 address?
What type of messages are used by routers for better next-hop selection in IPv6 Neighbor Discovery?
What type of messages are used by routers for better next-hop selection in IPv6 Neighbor Discovery?
What can be a result of excessive ARP broadcasts on a local network?
What can be a result of excessive ARP broadcasts on a local network?
In what scenario would a device use a gratuitous ARP?
In what scenario would a device use a gratuitous ARP?
What is a potential security risk associated with ARP replies?
What is a potential security risk associated with ARP replies?
What is the purpose of ICMPv6 Router Solicitation (RS) and Router Advertisement (RA) messages?
What is the purpose of ICMPv6 Router Solicitation (RS) and Router Advertisement (RA) messages?
What happens to ARP entries in the cache after a timeout period?
What happens to ARP entries in the cache after a timeout period?
What is a common security risk associated with ARP?
What is a common security risk associated with ARP?
What is the primary function of ARP in a network?
What is the primary function of ARP in a network?
What type of messages are used for device-to-device messaging in IPv6 Neighbor Discovery?
What type of messages are used for device-to-device messaging in IPv6 Neighbor Discovery?
What is the role of the default gateway in the context of ARP?
What is the role of the default gateway in the context of ARP?
What happens when a device searches its ARP table for a destination IPv4 address?
What happens when a device searches its ARP table for a destination IPv4 address?
When a device sends an ARP request, the request is sent as:
When a device sends an ARP request, the request is sent as:
What is the primary function of the IPv6 Neighbor Discovery (ND) protocol?
What is the primary function of the IPv6 Neighbor Discovery (ND) protocol?
Which command displays the ARP table on a Cisco router?
Which command displays the ARP table on a Cisco router?
Flashcards
What protocol does IPv6 use for address resolution?
What protocol does IPv6 use for address resolution?
ICMPv6 is used for address resolution in IPv6.
What is ARP's main function?
What is ARP's main function?
The primary function of ARP is to translate an IPv4 address into a MAC address, allowing network communication.
What type of addresses are used for ICMPv6 Neighbor Solicitation messages?
What type of addresses are used for ICMPv6 Neighbor Solicitation messages?
Special Ethernet and IPv6 multicast addresses are used to send ICMPv6 Neighbor Solicitation messages, facilitating communication between IPv6 neighbors.
At which OSI layer does ARP function?
At which OSI layer does ARP function?
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What does ARP resolve?
What does ARP resolve?
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How do you view the ARP cache in Windows?
How do you view the ARP cache in Windows?
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Who can manually remove ARP table entries?
Who can manually remove ARP table entries?
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What happens to ARP entries after a timeout?
What happens to ARP entries after a timeout?
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What is the purpose of ICMPv6 Neighbor Solicitation messages in IPv6 Neighbor Discovery?
What is the purpose of ICMPv6 Neighbor Solicitation messages in IPv6 Neighbor Discovery?
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What technique do switches use to protect against ARP attacks?
What technique do switches use to protect against ARP attacks?
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How do IPv6 devices resolve MAC addresses for known IPv6 addresses?
How do IPv6 devices resolve MAC addresses for known IPv6 addresses?
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What messages do routers use in IPv6 for optimal routing?
What messages do routers use in IPv6 for optimal routing?
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What impact can excessive ARP broadcasts have on a network?
What impact can excessive ARP broadcasts have on a network?
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When would a device use a gratuitous ARP?
When would a device use a gratuitous ARP?
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What security risk is associated with ARP replies?
What security risk is associated with ARP replies?
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What is the purpose of ICMPv6 Router Solicitation and Advertisement messages?
What is the purpose of ICMPv6 Router Solicitation and Advertisement messages?
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What happens to ARP entries after a timeout?
What happens to ARP entries after a timeout?
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What is a common security risk associated with ARP?
What is a common security risk associated with ARP?
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What is the primary function of ARP in a network?
What is the primary function of ARP in a network?
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What type of messages are used for device-to-device messaging in IPv6 Neighbor Discovery?
What type of messages are used for device-to-device messaging in IPv6 Neighbor Discovery?
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What is the role of the default gateway in the context of ARP?
What is the role of the default gateway in the context of ARP?
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What happens when a device searches its ARP table?
What happens when a device searches its ARP table?
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How is an ARP request sent?
How is an ARP request sent?
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What is the primary function of the IPv6 Neighbor Discovery protocol?
What is the primary function of the IPv6 Neighbor Discovery protocol?
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How do you view the ARP table on a Cisco router?
How do you view the ARP table on a Cisco router?
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Study Notes
Address Resolution Protocol (ARP)
- ARP's primary function is to translate an IPv4 address to a corresponding MAC address
- IPv6 uses ICMPv6 for address resolution
- Special Ethernet and IPv6 multicast addresses are used for ICMPv6 Neighbor Solicitation messages
- ARP operates at the Data Link layer of the OSI model
- ARP resolves IP addresses to their corresponding MAC addresses
- ARP table entries expire after a specified period
- Network administrators can manually remove ARP table entries
- ARP spoofing is a security risk associated with ARP replies
ICMPv6 Neighbor Discovery (ND)
- ICMPv6 NS and NA messages are used for device-to-device messaging in IPv6 Neighbor Discovery
- ICMPv6 RS and RA messages are used for router discovery
- IPv6 Neighbor Discovery is used to resolve MAC addresses
- Excessive ARP broadcasts can lead to performance degradation in a network
ARP Table
- ARP tables store mappings of IPv4 addresses to MAC addresses
- ARP table entries are deleted after a timeout period
- The
arp -acommand displays the current ARP cache on a Windows machine - The
show ip arpcommand displays the ARP table on a Cisco router
Default Gateway
- The default gateway forwards packets between different networks
- The default gateway resolves IP addresses for local devices
IPv6 Address Resolution
- IPv6 devices use ICMPv6 Router Solicitation (RS) and Router Advertisement (RA) messages to resolve MAC addresses
- IPv6 uses ICMPv6 Neighbor Solicitation (NS) messages to obtain the MAC address of a known IPv6 address
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Description
Explore the vital roles of the Address Resolution Protocol (ARP) and ICMPv6 Neighbor Discovery in network communication. This quiz covers the translation of IPv4 addresses to MAC addresses and how IPv6 utilizes ICMPv6 for similar functions. Learn about ARP table management, security risks like ARP spoofing, and the implications of excessive ARP broadcasts on network performance.
