D3- Chapter 3
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| STP | Spanning Tree Protocol (50 secs)
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| CAM | Content Addressable Memory
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| ASIC | Application-Specific Integrated Circuit
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| BPDU | Bridge Protocol Data Units
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| VTP | VLAN Trunking Protocol
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| PVST | Per-VLAN Spanning Tree
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| RSTP | Rapid Spanning Tree Protocol (less than 1 sec)
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| TPID | Tag Protocol Identifier
(0x8100) (4 Bytes)
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| VID | VLAN Identifier
(12 bits)
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| CFI | Canonical Format Indicator
(1 bit)
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| BID | Bridge Identifier
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| List the Switching Methods | -Store and Forward
-Cut-through (fast-forward, fragment-free)
-Adaptive Cut-through
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| 4 STP States a switch goes through when powered on | 1) Blocking
2) Listening
3) Learning
4) Forwarding
*5) Disabled
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| 3 Designated STP ports | - Root
- Designated
- Blocked
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| 3 STP Recalculating Methods | - PortFast
- UplinkFast
- BackBoneFast
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| 3 RSTP States a switch goes through when powered on | - Discarding
- Learning
- Forwarding
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| What do trunk ports do? | Trunk ports carry traffic of multiple VLANS over a single link.
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| Another name for a switch? | Bridge
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| VTP's do what? (3) | - Add VLANs
- Delete VLANs
- Removed VLANs
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| Benefits of VLANs for wireless networks (3) | - Provides network separation
- Provides a layer of Security
- Allows guest access to a protected portion of your network.
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| VTP has 3 modes | - Server
- Client
- Transparent
(default = server)
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| Traffic with no VLAN ID is called ? | Untagged
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| Switch ports can be configured for two different roles | - Trunk port
- Access port
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| Most Common Frame Tagging Standard | IEEE 802.1Q
(abr. dot1q)
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| When a VLAN is created, it is assigned what two things? | 1) Name
2) Number
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| Default bridge priority value | 32,768
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| Switching loops create what three issues in a network? | - Broadcast Storms
- Multiple Frame Transmission
- Mac Database Instability
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| 6 ways to secure a switch | Physically secure the device
Use secure passwords
Enable SSH access
Monitor access and traffic
Disable http access
Disable unused ports
Enable port security
Disable Telnet
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