Cisco 300-115 Implementing Cisco IP Switched Networks Online Training
Cisco 300-115 Online Training
The questions for 300-115 were last updated at Sep 29,2025.
- Exam Code: 300-115
- Exam Name: Implementing Cisco IP Switched Networks
- Certification Provider: Cisco
- Latest update: Sep 29,2025
Which three statements about extended VLANs are true? (Choose three)
- A . They require the extended system ID to be enabled on the device
- B . The lowest extended VLAN number is 1006
- C . The lowest extended VLAN number is 1002
- D . Any VLAN ID can be used as an extended VLAN
- E . They are propagated by VTP by default
- F . They are recognized only by VTP version 3
Which two statements about native VLANs are true? (Choose two)
- A . The VLAN tag is stripped from all incoming traffic that matches the native VLAN
- B . All incoming traffic that matches the native VLAN is dropped at the switch
- C . All untagged traffic that arrives on the device is placed into the native VLAN
- D . All outgoing traffic without a VLAN tag is tagged with the native VLAN.
- E . They are propagated through VTP.
- F . The default native VLAN is VLAN 11
Which two statements about native VLANs are true? (Choose two)
- A . The VLAN tag is stripped from all incoming traffic that matches the native VLAN
- B . All incoming traffic that matches the native VLAN is dropped at the switch
- C . All untagged traffic that arrives on the device is placed into the native VLAN
- D . All outgoing traffic without a VLAN tag is tagged with the native VLAN.
- E . They are propagated through VTP.
- F . The default native VLAN is VLAN 11
Which two statements about normal-range VLANs are true? (Choose two)
- A . You can add VLANs in VTP server mode
- B . Configurations are saved in the VLAN dat file
- C . The VLAN dat file is stored in RAM and copied to the NVRAM when you save the configuration
- D . You can delete VLANs 1002 through 1005 in transparent mode only
- E . You can add, modify, and remove configuration in VTP server mode and VTP client mode
Which two statements correctly describe the benefits of GLBP? (Choose two)
- A . It can automatically adjust group weighting when an interface goes down
- B . LAN traffic can be distributed to up to six routers in a GLBP group
- C . It support up to 128 virtual routers per physical interface
- D . It can load-share LAN traffic across up to four AVFs in a GLBP group
- E . It uses dual active AVGs for redundancy
Which two limitations of IP Source Guard are true? (Choose two)
- A . It is supported only on ingress Layer 2 ports
- B . It is supported only on ingress Layers 3 ports
- C . It is supported only on packets switched in hardware
- D . It is supported only on PAgP EtherChannels.
- E . It is supported only on egress Layer 3 ports
Which virtual MAC address does HSRP group 37 use with default configuration?
- A . C0.00:00:255:00:00
- B . 00:00:0c:07:ac:25
- C . C0:00:00:37:00:00
- D . 00:00:00c:07:ac:37
A. network engineer is considering implementing UDLD throughout the network
- A . UDLD aggressively disables the port after eight failed retries to connect to neighbor
- B . UDLD works at Layer 1 of the OSI model
- C . UDLD is an IEEE standard that can be configured on non-Cisco devices
- D . UDLD is already enabled by default on all ports on Cisco switches
Which statement describes the result of issuing the spanning-tree portfast trunk command under interface configuration mode?
- A . The port is allowed to go into the forwarding state immediately regardless of whether the interface is configured as an access or trunk port
- B . The portfast trunk port immediately replaces the lost root port with an alternate root port
- C . Trunk interface can be configured for portfast
- D . The port enters the errdisable state if BPDUs are received 20
Which two operational attributes can be checked for EtherChannel ports that are in err-disabled state?
- A . Port mode
- B . VLAN
- C . Port cost
- D . Duplex
- E . DTP
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