Term
| What is the default duplex mode for fast ethernet and gigabit ethernet ports? |
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Definition
| Current Cisco Catalyst switches support 10/100-Mbps auto-negotiation on all copper fast ethernet interfaces and full duplex on all fiber fast ethernet interfaces. |
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Term
| In a typical data center module design, how many layers is this split up into? |
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Definition
The data center module logically divides the overall data center infrastructure into the 3 layers: - Data center access layer - Data center distribution layer - Campus backbone layer (shared with the Enterprise Campus module) |
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Term
| What type of connection default to full-duplex ethernet connections? |
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Definition
| Gigabit and 10-Gigabit ethernet connections have a default operation of full duplex |
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Term
| What is the recommended speed for deploying connections in today's standards? |
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Definition
| You should deploy gigabit ethernet connections whenever possible on all your links, even ones to workstations. When you need to aggregate bandwidth, use can use multiple gigabit ethernet interfaces, using Etherchannel (port-channeling) |
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Term
| What type of connections should you plan for for the servers in a data center? |
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Definition
| At at minimum, you should plan for gigabit ethernet connections to each server in the data center, even though only the most powerful servers utilize the full bandwidth of 1Gbps. |
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Term
| What are the main reasons that you should deploy layer 3 switching in the campus network instead of layer 2 switching? |
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Definition
- Added scalability - Increased performance - Higher availability - Increased security |
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Term
| What happens when you configure one link with auto-negotiate and another manually, to 100Mbps, full-deplex? |
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Definition
| A duplex mismatch will occur if the manually configured link partner is set to 100Mbps, full duplex. This is because the auto-negotiate link partner does not see the auto-negotiate parameters from its peer and defaults to 100Mbps, half-duplex operation. |
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