READ Free Dumps For Cisco- 400-101
| Question ID 18551 | Assume that the following MAC addresses are used for the bridge ID MAC address by four
different switches in a network. Which switch will be elected as the spanning-tree root
bridge?
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| Option A | SwitchA uses MAC 1000.AA-AA-AA-AA-AA-AA.
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| Option B | SwitchB uses MAC 2000.BB-BB-BB-BB-BB-BB.
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| Option C | SwitchC uses MAC 3000.CC-CC-CC-CC-CC-CC.
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| Option D | SwitchD uses MAC 4000.DD-DD-DD-DD-DD-DD.
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| Correct Answer | A |
Explanation Explanation: The switch with the highest switch priority (the lowest numerical priority value) is elected as the root switch. If all switches are configured with the default priority (32768), the switch with the lowest MAC address in the VLAN becomes the root switch. Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12- 2_53_se/configuration/guide/2960scg/swstp.html
| Question ID 18552 | Refer to the exhibit.
Which statement describes the effect on the network if FastEthernet0/1 goes down
temporarily?
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| Option A | FastEthernet0/2 forwards traffic only until FastEthernet0/1 comes back up.
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| Option B | FastEthernet0/2 stops forwarding traffic until FastEthernet0/1 comes back up.
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| Option C | FastEthernet0/2 forwards traffic indefinitely.
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| Option D | FastEthernet0/1 goes into standby.
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| Correct Answer | C |
Explanation Explanation: Use the switchport backup interface interface configuration command on a Layer 2 interface to configure Flex Links, a pair of interfaces that provide backup to each other. Use the no form of this command to remove the Flex Links configuration. With Flex Links configured, one link acts as the primary interface and forwards traffic, while the other interface is in standby mode, ready to begin forwarding traffic if the primary link shuts down. The interface being configured is referred to as the active link; the specified interface is identified as the backup link. The feature provides an alternative to the Spanning Tree Protocol (STP), allowing users to turn off STP and still retain basic link redundancy. Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12- 2_53_se/command/reference/2960ComRef/cli3.html#wp3269214