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What is the most popular expansion board type for a NIC? (PCI, PCIe, AGP, etc.)
- 32- or 64-bit bus
- Clock speeds rated at 33-, 66- or 133-MHz
- Maximum data transfer rate: 1 Gbps
- Introduced by Intel (1992)
- Latest official version: 3.0 (2004)
• Switch reads entire data frame into memory
- Checks for accuracy before transmitting information
• Advantage over cut-through mode
- Transmit data more accurately
• Disadvantage over cut-through mode
- More time consuming
• Best use
- Larger LAN environments; mixed environments
- Can transfer data between segments running different transmission speeds
• Cannot detect corrupt packets
- May propagate flawed packets
- Data buffering (switch flooded with traffic)
• Best use
- Small workgroups needing speed
- Low number of devices
What are the two switch modes we discussed in the power point and how do they differ in the way they handle packets?
Store-and-forward mode & cut through. Cut through is faster. Store-and -forward transmits data more accurately.
What is a switch and what does it do?
Smaller logical pieces, segments
• Operate at layers 3 and 4 (advanced)
• Interpret MAC address information
What is a bridge?
Connects two network segments. Analyzes incoming frames and decide where to send.
Based on frame's MAC address
What is a repeater and how does it differ from a hub?
Simplest connectivity device regenerating signals. One input port; one output port. Hub has multiple data ports.
What is a hub and how many ports does it have?
Connectivity device that repeats signal in broadcast fashion. Repeater with more than one output port.
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