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PrepAway Cisco CCNP Switch Certification Practice Test Questions Part 8 300-115 Exam
Which command bypass listening and learning state of stp at all switch ports?
- A. show spanning-tree summary
- B. spanning-tree portfast
- C. spanning-tree portfast default
- D. show spanning-tree interfaceinterface#/# portfast
- E. show spanning-tree
Answer: C
Explanation:
This command is executed in global configuration and enables PortFast across the entire switch by default. Portfast brings an access or trunk port to the forwarding state from the blocking state in no time by bypassing the listening and learning states. The portfast can be enabled on the interface where any host is getting connected to immediately connect the devices to the network rather than waiting for the spanning tree to converge. This helpful only on the end ports directly connected to the hosts. In case this is enabled on the interface of any other switch in the network then it might create a spanning tree loop.
Incorrect answers:
A. show spanning-tree summary - This command is executed in privileged mode to display the current status of default STP configurations including PortFast.
The output looks somewhat like this:
switch# show spanning-tree summarySwitch is in rapid-pvst mode
Root bridge for: VLAN01, VLAN05
Port Type Default is disable
Edge Port [PortFast] BPDU Guard Default is disabled
Edge Port [PortFast] BPDU Filter Default is disabled
Bridge Assurance is enabled
Loopguard Default is enabled
Pathcost method used is short
Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------VLAN0001 2 0 0 5 7
VLAN0005 1 0 0 0 1
---------------------- -------- --------- -------- ---------- ----------
2 vlans 3 0 0 5 8switch#
B. spanning-tree portfast – Users configuring these needs to be in the interface configuring mode and need to enable portfast on per interface basis. In order to verify whether portfast has been enabled on the interface or not, you can run show running-configuration or show interface
switchport mode access
spanning-tree portfast
!
D. show spanning-tree interfaceinterface#/# portfast – In order to execute this command, you need to be in the privileged mode and the output of this command shows whether portfast is enable or not on any specific interface.
E. show spanning-tree - In order to execute this command, you need to be in the privileged mode and the output of this command will display details of the ports which are assigned to the particular VLAN. This also shows that status of the port whether the port is in FWD state or BLK state. You can further add following keywords to know the status of the spanning tree:
blockedports, inconsistentports, patchcost method.Cisco CCNP Certification Exam 300-115 Practice Tests
- CCNP Practice Test 1
- CCNP Practice Test 2
- CCNP Practice Test 3
- CCNP Practice Test 4
- CCNP Practice Test 5
- CCNP Practice Test 6
- CCNP Practice Test 7
- CCNP Practice Test 8
- CCNP Practice Test 9
- CCNP Practice Test 10
About 300-115 Exam
The Cisco 300-115 exam is the second of three tests that an individual should pass in order to obtain the Cisco Certified Network Professional (CCNP) Routing and Switching and Cisco Certified Design Professional (CCDP) credentials.
The Cisco 300-115 SWITCH exam is made up of 30-40 questions. The multiple-choice questions require you to give multiple answers. There are also scenario-based questions, fill-in-the-blank, and drag and drop. The duration of the test is 120 minutes. It is available in English and Japanese. Currently, there is no passing score that has been published by Cisco. The purpose of this certification exam is to test one’s capability to plan, configure, verify, implement, and troubleshoot complicated LAN switching solutions in an enterprise setting. These solutions are for enterprises that operate with the Cisco Enterprise Campus Architecture. In addition, the test covers largely secure WLANs and VLANs integration.
Exam topics:
The topics of the 300-115 exam act as guidelines for the candidates, so that they know what to focus on in their training. Although the content of the test may change and other related topics may be added, these are the general topics you can expect to find in this exam:
The study resources for the 300-115 exam should be Cisco-approved in the sense that they should be official study guides or other Cisco partner learning materials. It is a good idea to visit the Cisco Press website.
