2016 Dec. New Cisco 300-115: Implementing Cisco IP Switched Networks (SWITCH v2.0) Exam Questions Updated Today!
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QUESTION 11
Which technique automatically limits VLAN traffic to only the switches that require it?
A. access lists
B. DTP in nonegotiate
C. VTP pruning
D. PBR
Answer: C
QUESTION 12
What effect does the mac address-table aging-time 180 command have on the MAC address-table?
A. This is how long a dynamic MAC address will remain in the CAM table.
B. The MAC address-table will be flushed every 3 minutes.
C. The default timeout period will be 360 seconds.
D. ARP requests will be processed less frequently by the switch.
E. The MAC address-table will hold addresses 180 seconds longer than the default of 10 minutes.
Answer: A
QUESTION 13
While working in the core network building, a technician accidently bumps the fiber connection between two core switches and damages one of the pairs of fiber. As designed, the link was placed into a non-forwarding state due to a fault with UDLD. After the damaged cable was replaced, the link did not recover. What solution allows the network switch to automatically recover from such an issue?
A. macros
B. errdisable autorecovery
C. IP Event Dampening
D. command aliases
E. Bidirectional Forwarding Detection
Answer: B
QUESTION 14
A network engineer deployed a switch that operates the LAN base feature set and decides to use the SDM VLAN template. The SDM template is causing the CPU of the switch to spike during peak working hours. What is the root cause of this issue?
A. The VLAN receives additional frames from neighboring switches.
B. The SDM VLAN template causes the MAC address-table to overflow.
C. The VLAN template disables routing in hardware.
D. The switch needs to be rebooted before the SDM template takes effect.
Answer: C
QUESTION 15
An access switch has been configured with an EtherChannel port. After configuring SPAN to monitor this port, the network administrator notices that not all traffic is being replicated to the management server. What is a cause for this issue?
A. VLAN filters are required to ensure traffic mirrors effectively.
B. SPAN encapsulation replication must be enabled to capture EtherChannel destination traffic.
C. The port channel can be used as a SPAN source, but not a destination.
D. RSPAN must be used to capture EtherChannel bidirectional traffic.
Answer: C
QUESTION 16
A DHCP configured router is connected directly to a switch that has been provisioned with DHCP snooping. IP Source Guard with the ip verify source port-security command is configured under the interfaces that connect to all DHCP clients on the switch. However, clients are not receiving an IP address via the DHCP server. Which option is the cause of this issue?
A. The DHCP server does not support information option 82.
B. The DHCP client interfaces have storm control configured.
C. Static DHCP bindings are not configured on the switch.
D. DHCP snooping must be enabled on all VLANs, even if they are not utilized for dynamic address allocation.
Answer: A
QUESTION 17
A switch is added into the production network to increase port capacity. A network engineer is configuring the switch for DHCP snooping and IP Source Guard, but is unable to configure ip verify source under several of the interfaces. Which option is the cause of the problem?
A. The local DHCP server is disabled prior to enabling IP Source Guard.
B. The interfaces are configured as Layer 3 using the no switchport command.
C. No VLANs exist on the switch and/or the switch is configured in VTP transparent mode.
D. The switch is configured for sdm prefer routing as the switched database management template.
E. The configured SVIs on the switch have been removed for the associated interfaces.
Answer: B
QUESTION 18
The command storm-control broadcast level 75 65 is configured under the switch port connected to the corporate mail server. In which three ways does this command impact the traffic? (Choose three.)
A. SNMP traps are sent by default when broadcast traffic reaches 65% of the lower-level threshold.
B. The switchport is disabled when unicast traffic reaches 75% of the total interface bandwidth.
C. The switch resumes forwarding broadcasts when they are below 65% of bandwidth.
D. Only broadcast traffic is limited by this particular storm control configuration.
E. Multicast traffic is dropped at 65% and broadcast traffic is dropped at 75% of the total interface bandwidth.
F. The switch drops broadcasts when they reach 75% of bandwidth.
Answer: CDF
QUESTION 19
After UDLD is implemented, a Network Administrator noticed that one port stops receiving UDLD packets. This port continues to reestablish until after eight failed retries. The port then transitions into the errdisable state. Which option describes what causes the port to go into the errdisable state?
A. Normal UDLD operations that prevent traffic loops.
B. UDLD port is configured in aggressive mode.
C. UDLD is enabled globally.
D. UDLD timers are inconsistent.
Answer: B
QUESTION 20
After reviewing UDLD status on switch ports, an engineer notices that the current bidirectional state for an access port is “Unknown.” Which statement describes what this indicates about the status of the port?
A. The port is fully operational and no known issues are detected.
B. The bidirectional status of “unknown” indicates that the port will go into the disabled state because it stopped receiving UDLD packets from its neighbor.
C. UDLD moved into aggressive mode after inconsistent acknowledgements were detected.
D. The UDLD port is placed in the “unknown” state for 5 seconds until the next UDLD packet is received on the interface.
Answer: A
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