200-301 exam dumps: questions 201 to 300 of 503

Correct answer: A

• A. Correct.

  LLDP must be explicitly enabled on Cisco devices, as it is not enabled globally by default. If LLDP is disabled, no LLDP information will be exchanged.

• B. Incorrect.

  LLDP functions on both access and trunk ports. The type of port does not affect the exchange of LLDP information.

• C. Incorrect.

  CDP and LLDP can operate simultaneously without interfering with each other. They are independent protocols.

• D. Incorrect.

  While the LLDP timer affects how often updates are sent, it does not prevent the exchange of basic LLDP information.

Correct answer: B

• A. Incorrect.

  This option is incorrect because 'show cdp neighbors' is specific to Cisco Discovery Protocol (CDP), which is not supported by all devices in the scenario.

• B. Correct.

  This option is correct because 'show lldp neighbors' is the appropriate command to verify Link Layer Discovery Protocol (LLDP), which is designed to work across both Cisco and non-Cisco devices.

• C. Incorrect.

  This option is incorrect because 'show interfaces' displays interface details but does not verify the operation of discovery protocols like LLDP or CDP.

• D. Incorrect.

  This option is incorrect because the MAC address table lists learned MAC addresses but does not provide details related to Layer 2 discovery protocols.

Correct answers: A, B, C, D

• A. Correct.

  Enabling CDP globally with the 'cdp run' command is required for CDP to function across the device.

• B. Correct.

  Enabling LLDP globally with the 'lldp run' command is required for LLDP to function across the device.

• C. Correct.

  CDP must be enabled on the specific interfaces where you want to gather neighbor information.

• D. Correct.

  LLDP requires both 'lldp transmit' and 'lldp receive' commands on the interface to send and receive LLDP information.

• E. Incorrect.

  While CDP is enabled by default on Cisco devices, LLDP is not. Additionally, specific interface configurations are often needed to ensure proper operation.

Correct answers: A, B, C, D

• A. Correct.

  CDP must be enabled globally to allow Cisco devices to exchange discovery protocol information. Without this, no CDP information will be advertised or received.

• B. Correct.

  The 'show cdp neighbors' command provides a summary of directly connected Cisco devices, including device ID, local interface, and platform.

• C. Correct.

  LLDP must be enabled globally to allow devices to exchange discovery protocol information if non-Cisco devices are involved.

• D. Correct.

  The 'show lldp neighbors detail' command provides detailed information about neighbors, including system name, port description, and capabilities.

• E. Incorrect.

  The 'show ip route' command is used for Layer 3 routing table verification and is not relevant to Layer 2 discovery protocols.

Correct answers: A, B, C, D

• A. Correct.

  EtherChannel requires all participating ports to have matching speed and duplex settings to form a channel.

• B. Correct.

  For LACP to form an EtherChannel, one side must be set to 'active' while the other side can be 'active' or 'passive'; both cannot be in 'passive' mode.

• C. Correct.

  The EtherChannel group numbers must match on both switches to logically aggregate the correct ports.

• D. Correct.

  If the interfaces are in access mode, they must belong to the same VLAN; mismatched VLANs will prevent the EtherChannel from forming.

• E. Incorrect.

  Assigning an IP address to the port channel interface is only required for Layer 3 EtherChannel. However, this step is not relevant to troubleshooting the formation of the EtherChannel itself.