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What is the primary effect of the spanning-tree portfast command?
What is the primary effect of the spanning-tree portfast command?A . It enables BPDU messagesB . It minimizes spanning-tree convergence timeC . It immediately puts the port into the forwarding state when the switch is reloadedD . It immediately enables the port in the listening stateView AnswerAnswer: B Explanation: #comment-49349
Which command prevents passwords from being stored in the configuration as plaintext on a router or switch?
Which command prevents passwords from being stored in the configuration as plaintext on a router or switch?A . enable secretB . service password-encryptionC . username Cisco password encryptD . enable passwordView AnswerAnswer: B
Which two must be met before SSH can operate normally on a Cisco IOS switch? (Choose two)
Which two must be met before SSH can operate normally on a Cisco IOS switch? (Choose two)A . The switch must be running a k9 (crypto) IOS image.B . The ip domain-name command must be configured on the switch.C . IP routing must be enabled on the switch.D . A...
What are two reasons that cause late collisions to increment on an Ethernet interface? (Choose two)
What are two reasons that cause late collisions to increment on an Ethernet interface? (Choose two)A . when the sending device waits 15 seconds before sending the frame againB . when the cable length limits are exceededC . when one side of the connection is configured for half-duplexD . when...
Which two actions are performed by the Weighted Random Early Detection mechanism? (Choose two)
Which two actions are performed by the Weighted Random Early Detection mechanism? (Choose two)A . It drops lower-priority packets before it drops higher-priority packets.B . It can identify different flows with a high level of granularity.C . It guarantees the delivery of high-priority packets.D . It can mitigate congestion by...
Which two interface counters are incremented?
A frame that enters a switch fails the Frame Check Sequence. Which two interface counters are incremented? (Choose two)A . runtsB . giantsC . frameD . CRCE . input errorsView AnswerAnswer: DE Explanation: Whenever the physical transmission has problems, the receiving device might receive a frame whose bits have changed...
What are two southbound APIs? (Choose two)
What are two southbound APIs? (Choose two)A . OpenFlowB . NETCONFC . ThriftD . CORBAE . DSCView AnswerAnswer: AB Explanation: OpenFlow is a well-known southbound API. OpenFlow defines the way the SDN Controller should interact with the forwarding plane to make adjustments to the network, so it can better adapt...
How is OSPF configured?
Refer to the exhibit. The show ip ospf interface command has been executed on R1 . How is OSPF configured?A . The interface is not participating in OSPC . A point-to-point network type is configured.D . The default Hello and Dead timers are in use.E . There are six OSPF...
Which command is used to specify the delay time in seconds for LLDP to initialize on any interface?
Which command is used to specify the delay time in seconds for LLDP to initialize on any interface?A . lldp timerB . lldo holdtimtC . lldp reinitD . lldp tlv-selectView AnswerAnswer: C Explanation: + lldp holdtime seconds: Specify the amount of time a receiving device should hold the information from...
Which IP address is the source IP?
Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct . Which IP address is the source IP?A . 10.4.4.4B . 10.4.4.5C . 172.23.103.10D . 172.23.104.4View AnswerAnswer: D
