2017 New Cisco 300-115 PDF Exam Practice Questions 100% Pass Rate

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What does the command vlan dot1q tag 300-115 native accomplish when configured under global configuration?
A. All frames within the native VLAN are tagged, except when the native VLAN is set to 1.
B. It allows control traffic to pass using the non-default VLAN.
C. It removes the 4-byte dot1q tag from every frame that traverses the trunk interface(s).
D. Control traffic is tagged.
Correct Answer: D Explanation
The “vlan dot1q tag native” will tag all untagged frames, including control traffic, with the defined native VLAN.

A network engineer has just deployed a non-Cisco device in the network and wants to get information about it from a connected device. Cisco Discovery Protocol is not supported, so the open 300-115 dumps standard protocol must be configured. Which protocol does the network engineer configure on both devices to accomplish this?
Correct Answer: B Explanation
The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol in the Internet Protocol Suite used by network devices for advertising their identity,
capabilities, and neighbors on an IEEE 802 local area network, principally wired Ethernet. LLDP performs functions similar to several proprietary protocols, such
as the Cisco Discovery Protocol (CDP).

Reference: http://www.passitdump.com/300-115.html

A manager tells the network engineer to permit only certain VLANs across a specific 300-115 trunk interface. Which option can be configured to accomplish this?
A. allowed VLAN list
B. VTP pruning
D. L2P tunneling
Correct Answer: A Explanation
When a trunk link is established, all of the configured VLANs are allowed to send and receive traffic across the link. VLANs 1 through 1005 are allowed on each
trunk by default. However, VLAN traffic can be removed from the 300-115 exam allowed list. This keeps traffic from the VLANs from passing over the trunk link.
Note: The allowed VLAN list on both the ends of the trunk link should be the same. For Integrated Cisco IOS Software based switches, perform these steps:
1.To restrict the traffic that a trunk carries, issue the switchport trunk vlan-list interface configuration command.
This removes specific VLANs from the allowed list.

For client server failover purposes, the application server team has indicated that they must not have the standard 30 second delay before their switchport enters a forwarding 300-115 state. For their disaster recovery feature to operate successfully, they require the switchport to enter a forwarding state immediately. Which spanning-tree feature satisfies this requirement?
A. Rapid Spanning-Tree
B. Spanning-Tree Timers
C. Spanning-Tree FastPort
D. Spanning-Tree PortFast
E. Spanning-Tree Fast Forward
Correct Answer: D Explanation
Explanation: In order to 300-115 vce allow immediate transition of the port into forwarding state, enable the STP PortFast feature. PortFast immediately transitions the port into STP forwarding mode upon linkup. The port still participates in STP. So if the port is to be a part of the loop, the port eventually transitions into STP blocking mode. Example  https://www.lead4pass.com/300-115.html configuration: Switch-C# configure terminal Switch-C(config)# interface range fa0/3 – 24 Switch-C(config-if-range)# spanning-tree portfast

Read more: http://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/switch2.html

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