Cisco 300-115 Online Practice Questions and Exam Preparation

Cisco 300-115 Online Questions & Answers

• Question 121:

  An exhibit with spanning-tree. Protocol used was IEEE. (Choose two.)

  A. The command spanning-tree mode IEEE was implemented.
  B. The spanning-tree mode is IEEE.
  A. The command spanning-tree mode IEEE was implemented.
  B. The spanning-tree mode is IEEE.

• Question 122:

  There was exhibit for RSPAN with two sessions.

  A. session one had destination port was missing
  B. session two was properly configured
  C. https://www.CertBus.com/300-115.html
  D. https://www.CertBus.com/300-115.html
  A. session one had destination port was missing

• Question 123:

  Which VTP mode is needed to configure an extended VLAN, when a switch is configured to use VTP versions 1 or 2?

  A. transparent
  B. client
  C. server
  D. Extended VLANs are only supported in version 3 and not in versions 1 or 2
  A. transparent

• Question 124:

  How can you mitigate attacks in which the attacker attaches more than one VLAN tag to a packet?

  A. Disable EtherChannel
  B. Enable transparent VTP on the switch.
  C. Explicitly identify each VLAN allowed across the trunk.
  D. Assign an access VLAN to every active port on the switch.
  C. Explicitly identify each VLAN allowed across the trunk.

• Question 125:

  Drag and Drop

  Select and Place:

  

  

• Question 126:

  Your customer has asked you to come in and verify the operation of routers R1 and R2 which are configured to use HSRP. They have questions about how these two devices will perform in the event of a device failure.

  

  You are connecting the New_Switch to the LAN topology; the switch has been partially configured and you need to complete the rest of configuration to enable PC1 communication with PC2. Which of the configuration is correct?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  D. Option D

  ---

  Within any VTP, the VTP domain name must match. So, step one is to find the correct VTP name on the other switches. Logging in to SW1 and using the "show vtp status" command we see this:

  So we know that the VTP domain must be CCNP. This leaves only choice D and E. We also see from the topology diagram that eth 0/0 of the new switch connects to a PC in VLNA 100, so we know that this port must be an access port in VLAN 100, leaving only choice D as correct. Note that the VTP versions supported in this network are 1, 2, 3 so either VTP version 2 or 3 can be configured on the new switch.

• Question 127:

  Which command enables you to detect whether both sides of an aggregate link are configured properly?

  A. spanning-tree loopguard default
  B. spanning-tree etherchannel guard misconfig
  C. spanning-tree backbonefast
  D. spanning-tree guard root
  B. spanning-tree etherchannel guard misconfig

• Question 128:

  Pilot testing of the new switching infrastructure finds that when the root port is lost, STP immediately replaces the root port with an alternative root port. Which spanning-tree technology is used to accomplish backup root port selection?

  A. PVST+
  B. PortFast
  C. BackboneFast
  D. UplinkFast
  E. Loop Guard
  F. UDLD
  D. UplinkFast

  ---

  Explanation: I f a switch loses connectivity, it begins using the alternate paths as soon as the spanning tree selects a new root port. By enabling UplinkFast with the spanning-tree uplinkfast global configuration command, you can accelerate the choice of a new root port when a link or switch fails or when the spanning tree reconfigures itself. The root port transitions to the forwarding state immediately without going through the listening and learning states, as it would with the normal spanning-tree procedures. UplinkFast provides fast convergence after a direct link failure and achieves load balancing between redundant Layer 2 links using uplink groups. An uplink group is a set of Layer 2 interfaces (per VLAN), only one of which is forwarding at any given time. Specifically, an uplink group consists of the root port (which is forwarding) and a set of blocked ports, except for self-looping ports. The uplink group provides an alternate path in case the currently forwarding link fails. Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/ catalyst2960/software/release/12- 2_55_se/configuration/guide/scg_2960/swstpopt.html

• Question 129:

  Which command set the interval LLDP send updates to its neighbors?

  A. LLDP tlv-select
  B. LLDP Timer
  C. LLDP Transmit
  D. http://certbus.com
  B. LLDP Timer

• Question 130:

  Which feature actively validates DHCP messages and drops invalid messages?

  A. IGMP snooping
  B. DHCP host tracking
  C. CGMP binding
  D. DHCP snooping
  E. DHCP inspection
  F. Dynamic ARP inspection
  D. DHCP snooping