Podcast
Questions and Answers
What does the term MAC address refer to in networking?
What does the term MAC address refer to in networking?
- Memory Allocation Card address
- Media Acceleration Control address
- Memory Access Control address
- Media Access Control address (correct)
How long is an Ethernet MAC address in bits?
How long is an Ethernet MAC address in bits?
- 64 bits
- 32 bits
- 8 bits
- 48 bits (correct)
What do the first three bytes of a MAC address represent?
What do the first three bytes of a MAC address represent?
- Manufacturer portion
- Organizationally Unique Identifier (correct)
- Serial number
- Frame identifier
What function do switches perform at the MAC address level?
What function do switches perform at the MAC address level?
Why does a switch maintain a list of MAC addresses on the local network?
Why does a switch maintain a list of MAC addresses on the local network?
What is a significant operational requirement for switches in larger environments?
What is a significant operational requirement for switches in larger environments?
What is a common method attackers use to view network traffic?
What is a common method attackers use to view network traffic?
What feature on most switches protects against MAC flooding?
What feature on most switches protects against MAC flooding?
How can an attacker create a denial-of-service situation on a network?
How can an attacker create a denial-of-service situation on a network?
What allows an attacker to match an existing allow list and gain unauthorized access to a network?
What allows an attacker to match an existing allow list and gain unauthorized access to a network?
In what way does changing the MAC address help attackers gain unauthorized access?
In what way does changing the MAC address help attackers gain unauthorized access?
Why do most network drivers allow users to modify the MAC address of their devices?
Why do most network drivers allow users to modify the MAC address of their devices?
What protocol is typically used to keep a network up and running?
What protocol is typically used to keep a network up and running?
What action does a switch take if it receives traffic with an unknown MAC address?
What action does a switch take if it receives traffic with an unknown MAC address?
In the example provided, where is Sam's MAC address located in the switch's MAC address table?
In the example provided, where is Sam's MAC address located in the switch's MAC address table?
What happens when a switch reaches maximum capacity in its MAC address table?
What happens when a switch reaches maximum capacity in its MAC address table?
What is one challenge associated with a switch's MAC address table?
What is one challenge associated with a switch's MAC address table?
When a frame reaches a switch, how does it determine where to send the information?
When a frame reaches a switch, how does it determine where to send the information?
What happens if a switch receives a frame with a MAC address already in its table?
What happens if a switch receives a frame with a MAC address already in its table?
What does a switch do if it encounters a limitation in its MAC address storage capacity?
What does a switch do if it encounters a limitation in its MAC address storage capacity?
What does it mean when a switch behaves like a hub?
What does it mean when a switch behaves like a hub?
How does a switch differentiate itself from a hub?
How does a switch differentiate itself from a hub?
What does the Organizationally Unique Identifier (OUI) represent in a MAC address?
What does the Organizationally Unique Identifier (OUI) represent in a MAC address?
What is the purpose of the last three bytes in an Ethernet MAC address?
What is the purpose of the last three bytes in an Ethernet MAC address?
How do switches maintain a loop-free environment in networking?
How do switches maintain a loop-free environment in networking?
In networking, what is the significance of switches interpreting the frame at the MAC address level?
In networking, what is the significance of switches interpreting the frame at the MAC address level?
Why do we refer to the MAC address as the 'physical address' of a network card?
Why do we refer to the MAC address as the 'physical address' of a network card?
What unique characteristic differentiates the first three bytes from the last three bytes in an Ethernet MAC address?
What unique characteristic differentiates the first three bytes from the last three bytes in an Ethernet MAC address?
What method can an attacker use to circumvent existing security devices and match the MAC address of a legitimate device on the network?
What method can an attacker use to circumvent existing security devices and match the MAC address of a legitimate device on the network?
How do most switches protect against MAC flooding and prevent overloading of the MAC address table?
How do most switches protect against MAC flooding and prevent overloading of the MAC address table?
What can an attacker achieve by modifying the MAC address of their device to match another device on the network?
What can an attacker achieve by modifying the MAC address of their device to match another device on the network?
Why is it relatively easy for attackers to clone or modify MAC addresses?
Why is it relatively easy for attackers to clone or modify MAC addresses?
What is one common outcome when an attacker uses the same MAC address as another user on the network?
What is one common outcome when an attacker uses the same MAC address as another user on the network?
How can an attacker use MAC address spoofing to disrupt network operations?
How can an attacker use MAC address spoofing to disrupt network operations?
What does a switch do if it receives traffic with a MAC address not listed in its MAC address table?
What does a switch do if it receives traffic with a MAC address not listed in its MAC address table?
What is one consequence of a switch's MAC address table reaching maximum capacity?
What is one consequence of a switch's MAC address table reaching maximum capacity?
How does a switch handle frames received with a MAC address already listed in its table?
How does a switch handle frames received with a MAC address already listed in its table?
If an attacker floods a switch with thousands of new MAC addresses, what is the likely outcome?
If an attacker floods a switch with thousands of new MAC addresses, what is the likely outcome?
What does it mean when a switch acts as a hub due to its MAC address table limitations?
What does it mean when a switch acts as a hub due to its MAC address table limitations?
What action does a switch take if it encounters a limitation in its MAC address storage capacity?
What action does a switch take if it encounters a limitation in its MAC address storage capacity?
Why is flooding a switch with new MAC addresses considered an attack technique?
Why is flooding a switch with new MAC addresses considered an attack technique?
