Podcast
Questions and Answers
After which step of the switch bootup sequence is the boot loader executed?
After which step of the switch bootup sequence is the boot loader executed?
Which impact does adding a Layer 2 switch have on a network?
Which impact does adding a Layer 2 switch have on a network?
Which characteristic describes cut-through switching?
Which characteristic describes cut-through switching?
What is the significant difference between a hub and a Layer 2 LAN switch?
What is the significant difference between a hub and a Layer 2 LAN switch?
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Which statement is correct about Ethernet switch frame forwarding decisions?
Which statement is correct about Ethernet switch frame forwarding decisions?
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Which statement is true about the impact of a Layer 2 switch on a network?
Which statement is true about the impact of a Layer 2 switch on a network?
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What do switch buffers primarily do in a network?
What do switch buffers primarily do in a network?
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Which switch characteristic helps localize traffic and reduce network congestion?
Which switch characteristic helps localize traffic and reduce network congestion?
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What component in a switch decreases packet handling time within the device?
What component in a switch decreases packet handling time within the device?
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What information is added to the switch table from incoming frames?
What information is added to the switch table from incoming frames?
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Which switching method verifies the error-free status of an incoming frame before forwarding it?
Which switching method verifies the error-free status of an incoming frame before forwarding it?
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In the context of the given text, how many broadcast domains are displayed in the exhibit?
In the context of the given text, how many broadcast domains are displayed in the exhibit?
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Study Notes
Switch Bootup Sequence
- The boot loader is executed after the POST execution step.
Impact of Adding a Layer 2 Switch
- Adding a Layer 2 switch increases the size of the broadcast domain.
Characteristics of Cut-Through Switching
- Cut-through switching forwards error-free fragments, resulting in lower latency.
Hub vs Layer 2 LAN Switch
- A hub extends a collision domain, while a Layer 2 LAN switch divides collision domains.
Ethernet Switch Frame Forwarding Decisions
- Frame forwarding decisions are based on MAC address and port mappings in the CAM table.
Effect of Switch Buffers on Network Performance
- Switch buffers store frames received, preventing premature frame discarding during network congestion.
Switch Characteristics to Alleviate Network Congestion
- Keeping traffic local and alleviating network congestion is helped by the switch characteristic of large frame buffers.
Switch Component to Reduce Packet Handling Time
- The ASIC component reduces the amount of packet handling time inside the switch.
Information Added to Switch Table
- Source MAC address and incoming port number are added to the switch table from incoming frames.
Switching Method to Ensure Error-Free Frames
- The store-and-forward switching method ensures that incoming frames are error-free before forwarding.
Broadcast Domains
- The exhibit displays 4 broadcast domains.
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Description
Test your knowledge on switch bootup sequence steps, the impact of adding a Layer 2 switch, and characteristics of cut-through switching. Identify which stage the boot loader is executed, the effects of a Layer 2 switch on a network, and the description of cut-through switching.
