Cisco 300-115 Free Practice Questions

Question No: 8

Which IOS configuration command is required to configure a VLAN as a private VLAN?

A. switch(config-vlan)# private-vlan common

B. switch(config-vlan)# private-vlan private

C. switch(config-vlan)# private-vlan primary

D. switch(config-vlan)# private-vlan transparent

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Question No: 9

Which two DTP negotiated interface mode combinations negotiate to form an access port? (Choose two )

A. dynamic auto and dynamic auto

B. renegotiate and trunk

C. dynamic auto and trunk

D. dynamic desirable and access

E. dynamic desirable and dynamic auto

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Question No: 10

Which file lists all of the configured VLANs on a switch?

A. flash:vlan.dat

B. nvram:vlans.xml

C. flash:vlans.txt

D. nvram:vlan.txt

E. flash.config.txt

F. flash:vlan.xml

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Question No: 11

Which feature do you implement so that an interface enters the root inconsistent state if it receives a superior BPDU?

A. DPDU filter

B. root guard

C. BPDU guard

D. loop guard

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Question No: 12

Which option is the maximum frame size for an 802.1Q frame?

A. 64 bytes

B. 68 bytes

C. 1518 bytes

D. 1522 bytes

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Question No: 13

Which two configurations can you apply to a port so that it tags traffic with VLAN 915? (Choose two.)

A. interface GigabitEthernet0/0 switchport mode access switchport access vlan 915

B. interface GigabitEthernet0/0 switchport mode trunk

switchport trunk encapsulation dot1q switchport trunk allowed vlan 915

C. interface GigabitEthernet0/0 switchport mode access switchport voice vlan 915 switchport access vlan 915

D. interface GigabitEthernet0/0.915 encapsulation dot1q 915

E. interface GigabitEthernet0/0.915 switchport mode access

switchport access vlan 915

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Question No: 14

Refer to the exhibit.

BPDUGuard is enabled on both ports of SwitchA. Initially, LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA. Which two statements about the possible result of attaching the second link are true? (Choose two.)

A. The switch port attached to LinkB does not transition to up.

B. One or both of the two switch ports attached to the hub goes into the err-disabled state when a BPDU is received.

C. Both switch ports attached to the hub transitions to the blocking state.

D. A heavy traffic load could cause BPDU transmissions to be blocked and leave a switching loop.

E. The switch port attached to LinkA immediately transitions to the blocking state.

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Question No: 15

Refer to the exhibit

A network engineer deployed an older switch with the same spanning-tree priority as the existing root, which caused a network outage. In which two locations should the Spanning Tree protocol root guard feature be implemented? (Choose two.)

A. On the designated root switch downlinks to the access layer.

B. On all of non-root switch facing ports of the access layer

C. On the access layers root facing ports

D. On Layer 3 boundaries in the distribution layer

E. Globally on all network switches.

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Question No: 16

Which statement about GLBP is true?

A. Unused bandwidth is never utilized.

B. They communicate under TCP port 3222 for both source and destination.

C. They become active if any of the existing forwarding switches fail.

D. They become restricted if any of the existing forwarding switches fail.

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Question No: 17

Which two statements about RPVST+ are True ?

A. It automatically enables uplinkfast and backbonefast.

B. It elects one root switch per vlan instance

C. It support two stp instances per vlan

D. It is incompatible with spanning tree portfast

E. Backwards compatibility with 802.1d is not supported

F. It requires approximately 50 seconds to complete reconvergence

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