Podcast
Questions and Answers
What is the primary function of the MAC sublayer?
What is the primary function of the MAC sublayer?
- To manage network topology
- To provide physical layer technologies
- To provide error detection
- To encapsulate data and access media (correct)
What is the purpose of the frame check sequence (FCS) trailer in an Ethernet frame?
What is the purpose of the frame check sequence (FCS) trailer in an Ethernet frame?
- To provide source and destination MAC addresses
- To ensure error-free transmission
- To detect errors and correct them
- To detect errors (correct)
What type of access method is used in half-duplex Ethernet?
What type of access method is used in half-duplex Ethernet?
- Round-robin
- Polling
- Carrier sense multiple access/collision detection (CSMA/CD) (correct)
- Token passing
What is the benefit of using switches in modern Ethernet LANs?
What is the benefit of using switches in modern Ethernet LANs?
What is the purpose of the back-off algorithm in CSMA/CD?
What is the purpose of the back-off algorithm in CSMA/CD?
What type of medium is used in legacy Ethernet?
What type of medium is used in legacy Ethernet?
What is the purpose of the source and destination MAC addresses in an Ethernet frame?
What is the purpose of the source and destination MAC addresses in an Ethernet frame?
What is the type of topology used in legacy Ethernet?
What is the type of topology used in legacy Ethernet?
What type of device will have an Ethernet NIC and a MAC address?
What type of device will have an Ethernet NIC and a MAC address?
What is the purpose of a unicast MAC address in Ethernet?
What is the purpose of a unicast MAC address in Ethernet?
What is the process used to determine the destination MAC address associated with an IPv4 address?
What is the process used to determine the destination MAC address associated with an IPv4 address?
What is the destination MAC address of an Ethernet broadcast frame?
What is the destination MAC address of an Ethernet broadcast frame?
How does an Ethernet switch handle an Ethernet broadcast frame?
How does an Ethernet switch handle an Ethernet broadcast frame?
What happens to an Ethernet broadcast frame when it reaches a router?
What happens to an Ethernet broadcast frame when it reaches a router?
What is the significance of the destination IPv4 address in an Ethernet broadcast frame?
What is the significance of the destination IPv4 address in an Ethernet broadcast frame?
What is the purpose of the source MAC address in an Ethernet frame?
What is the purpose of the source MAC address in an Ethernet frame?
What does a switch use to make forwarding decisions?
What does a switch use to make forwarding decisions?
What happens when a switch is turned on?
What happens when a switch is turned on?
What does a switch do when it receives a frame with a new source MAC address?
What does a switch do when it receives a frame with a new source MAC address?
What happens to an entry in the MAC address table after 5 minutes?
What happens to an entry in the MAC address table after 5 minutes?
What happens when a switch receives a frame with a source MAC address that exists in the table but on a different port?
What happens when a switch receives a frame with a source MAC address that exists in the table but on a different port?
What does a switch do when it receives a frame with a unicast destination MAC address?
What does a switch do when it receives a frame with a unicast destination MAC address?
What is the MAC address table also referred to as?
What is the MAC address table also referred to as?
What is the purpose of the switch examining the source MAC address of the frame?
What is the purpose of the switch examining the source MAC address of the frame?
What happens when a switch receives a frame with a destination MAC address that is not in its table?
What happens when a switch receives a frame with a destination MAC address that is not in its table?
How does a switch populate its MAC address table?
How does a switch populate its MAC address table?
What is the advantage of store-and-forward switching?
What is the advantage of store-and-forward switching?
How many forwarding methods are used by Cisco switches?
How many forwarding methods are used by Cisco switches?
What happens when a switch receives a broadcast or multicast frame?
What happens when a switch receives a broadcast or multicast frame?
What is the minimum requirement for the cut-through switching method?
What is the minimum requirement for the cut-through switching method?
What happens when a switch's MAC address table contains the destination MAC address?
What happens when a switch's MAC address table contains the destination MAC address?
What is the purpose of computing the CRC in store-and-forward switching?
What is the purpose of computing the CRC in store-and-forward switching?
What should be the configuration of autonegotiation on both sides of a link?
What should be the configuration of autonegotiation on both sides of a link?
What is the best practice for configuring Ethernet switch ports?
What is the best practice for configuring Ethernet switch ports?
What type of connection requires a cross-over cable?
What type of connection requires a cross-over cable?
What is the purpose of the auto-MDIX feature?
What is the purpose of the auto-MDIX feature?
What should you always use when connecting devices?
What should you always use when connecting devices?
What is the default state of the auto-MDIX feature on switches running Cisco IOS Release 12.2(18)SE or later?
What is the default state of the auto-MDIX feature on switches running Cisco IOS Release 12.2(18)SE or later?
How can you re-enable the auto-MDIX feature?
How can you re-enable the auto-MDIX feature?
What is the reason for not relying on the auto-MDIX feature?
What is the reason for not relying on the auto-MDIX feature?
What is the length of an Ethernet MAC address in bytes?
What is the length of an Ethernet MAC address in bytes?
What is the purpose of the organizationally unique identifier (OUI) in an Ethernet MAC address?
What is the purpose of the organizationally unique identifier (OUI) in an Ethernet MAC address?
What happens when a NIC receives an Ethernet frame with a destination MAC address that does not match its own?
What happens when a NIC receives an Ethernet frame with a destination MAC address that does not match its own?
What type of MAC address is an Ethernet NIC configured to accept?
What type of MAC address is an Ethernet NIC configured to accept?
What is the significance of the source MAC address in an Ethernet frame?
What is the significance of the source MAC address in an Ethernet frame?
What is the purpose of the MAC address in an Ethernet LAN?
What is the purpose of the MAC address in an Ethernet LAN?
How many hexadecimal digits are used to express an Ethernet MAC address?
How many hexadecimal digits are used to express an Ethernet MAC address?
Why must all Ethernet devices have unique MAC addresses?
Why must all Ethernet devices have unique MAC addresses?
What is the primary function of the LLC sublayer in Ethernet?
What is the primary function of the LLC sublayer in Ethernet?
What is the advantage of using Ethernet technology in LANs?
What is the advantage of using Ethernet technology in LANs?
What is the purpose of the MAC sublayer in Ethernet?
What is the purpose of the MAC sublayer in Ethernet?
What is the main difference between Ethernet and WLANs?
What is the main difference between Ethernet and WLANs?
What is the purpose of the Ethernet frame?
What is the purpose of the Ethernet frame?
Which standard defines the Layer 2 protocols and Layer 1 technologies used in Ethernet?
Which standard defines the Layer 2 protocols and Layer 1 technologies used in Ethernet?
What is the primary function of the data link layer in Ethernet?
What is the primary function of the data link layer in Ethernet?
What is the advantage of using multiple Layer 3 protocols on the same network interface and media?
What is the advantage of using multiple Layer 3 protocols on the same network interface and media?
What does a switch do with the source MAC address of a frame when it is not in the MAC address table?
What does a switch do with the source MAC address of a frame when it is not in the MAC address table?
What happens to an entry in the MAC address table if the source MAC address exists in the table but on a different port?
What happens to an entry in the MAC address table if the source MAC address exists in the table but on a different port?
How does a switch make forwarding decisions?
How does a switch make forwarding decisions?
What is the primary function of a switch in a network?
What is the primary function of a switch in a network?
What is the default time for which an entry stays in the MAC address table?
What is the default time for which an entry stays in the MAC address table?
What is the purpose of a switch examining the source MAC address of every frame?
What is the purpose of a switch examining the source MAC address of every frame?
What does a switch do when it receives a frame with a unicast destination MAC address?
What does a switch do when it receives a frame with a unicast destination MAC address?
What happens when a switch receives a frame with a destination MAC address that is not in its table?
What happens when a switch receives a frame with a destination MAC address that is not in its table?
What is the MAC address table also referred to as?
What is the MAC address table also referred to as?
How does a switch learn new MAC addresses?
How does a switch learn new MAC addresses?
What is the advantage of using cut-through switching over store-and-forward switching?
What is the advantage of using cut-through switching over store-and-forward switching?
What is the purpose of an unknown unicast in a switch?
What is the purpose of an unknown unicast in a switch?
What happens when a switch receives a frame with a destination MAC address that is not in its table?
What happens when a switch receives a frame with a destination MAC address that is not in its table?
What is the difference between store-and-forward switching and cut-through switching?
What is the difference between store-and-forward switching and cut-through switching?
What happens when a switch receives a frame with a broadcast or multicast destination MAC address?
What happens when a switch receives a frame with a broadcast or multicast destination MAC address?
What is the benefit of using store-and-forward switching over cut-through switching?
What is the benefit of using store-and-forward switching over cut-through switching?
What happens when an error is detected in a frame?
What happens when an error is detected in a frame?
What is the primary purpose of store-and-forward switching?
What is the primary purpose of store-and-forward switching?
What is the key difference between fast-forward switching and other cut-through switching methods?
What is the key difference between fast-forward switching and other cut-through switching methods?
What happens to faulty packets in fast-forward switching?
What happens to faulty packets in fast-forward switching?
Why is store-and-forward switching required for converged networks?
Why is store-and-forward switching required for converged networks?
How does a switch determine the port to forward data in cut-through switching?
How does a switch determine the port to forward data in cut-through switching?
What is the primary advantage of cut-through switching over store-and-forward switching?
What is the primary advantage of cut-through switching over store-and-forward switching?
What is the typical cut-through switching method of switching?
What is the typical cut-through switching method of switching?
