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2018 Jan Cisco Official New Released 300-115
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Implementing Cisco IP Switched Networks
Question No: 101
Which type of information does the DHCP snooping bindingdatabase contain?
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untrusted hosts with leased IP addresses
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trusted hosts with leased IP addresses
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untrusted hosts with available IP addresses
-
trusted hosts with available IP addresses
Answer: A
Question No: 102
Refer to the exhibit. Switch 15 is configured as the root switchfor VLAN 10 but not for VLAN
20. If the STP configuration is correct, what will be true about Switch 15?
-
All ports will be in forwarding mode.
-
All ports in VLAN 10 will be in forwarding mode.
-
All ports in VLAN 10 will be in forwarding mode andall ports in VLAN 20 will be in blocking mode.
-
All ports in VLAN 10 will be in forwarding mode and all ports in VLAN 20 will be in standby mode.
Answer: B
Question No: 103
Which two statements about 802. 1q are true? (Choose two )
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It encapsulates the original Ethernet frame and adds a VLAN identifier.
-
It increases the maximum size an Ethernet frame to 1094 bytes.
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It is a Cisco proprietary protocol.
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When It is enabled, it forces a recalculation of the frame check sequence field.
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It supports 8-byte VLAN identifiers.
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It adds a 32-bit field to the Ethernet frame between the source MAC address and length fields.
Answer: B,E
Question No: 104
Refer to the exhibit.
Switch A, B, and C are trunked together and have been properly configured for VTP. Switch B has all VLANs, but Switch C is not receiving traffic from certain VLANs. What would cause this issue?
-
A VTP authentication mismatch occurred between Switch A and Switch B.
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The VTP revision number of Switch B is higher than that of Switch A.
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VTP pruning is configured globally on all switches and it removedVLANs from the trunk interface that is connected to Switch C.
-
The trunk between Switch A and Switch B is misconfigured.
Answer: C
Question No: 105 DRAG DROP
Drag and drop thecharacteristic from the left to the matching Layer 2 protocol on the right.
Answer:
Question No: 106
A network engineer must set the load balance method on an existing port channel. Which action must be done toapply a new load balancing method?
-
Configure the new load balancing method using port-channel load-balance.
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Adjust the switch SDM back to quot;defaultquot;.
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Ensure that IP CEF is enabled globally to support all load balancing methods.
-
Upgrade the PFCto support the latest load balancing methods.
Answer: A
Question No: 107
A network engineer wants to ensure Layer 2 isolation of customer traffic using a private VLAN. Which configuration must be made before the private VLAN is configured?
-
Disable VTPand manually assign VLANs.
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Ensure all switches are configured as VTP server mode.
-
Configure VTP Transparent Mode.
-
Enable VTP version 3.
Answer: C
Question No: 108
What is required for a LAN switch to support 802.1q Q-in-Q encapsulation?
-
Support less than 1500 MTU
-
Support 1504 MTU or higher
-
Support 1522 layer 3 IP and IPX packet
-
Support 1547 MTU only
Answer: B
Question No: 109
Which command configures an HSRP group to become a slave of another HSRP group?
-
standby slave
-
standby group track
-
standby follow
-
standby groupbackup
Answer: C
Question No: 110
What happens on a Cisco switch that runs Cisco IOS whenan RSTP-configured switch receives 802.1d BPDU?
-
802.1d does not understand RSTP BPDUs because they are different versions, but when a RSTP switch receives an 802.1d BPDU, it responds with an 802.1d BPDU and eventually the two switches run 802.1d to communicate.
-
802.1d understands RSTP BPDUs because they are the same version, but when a RSTP switch receives a 802.1d BPDU, it responds with a 802.1d BPDU and eventually the two switches run 802.1d to communicate.
-
802.1d does not understand RSTP BPDUsbecause they are different versions, but when a RSTP switch receives a 802.1d BPDU, it does not respond with a 802.1d BPDU.
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802.1d understands RSTP BPDUs because they are the same version, but when a RSTP switch receives a 802.1d BPDU, it does not respond with a 802.1d BPDU and eventually the two switches run 802.1d to communicate.
Answer: A
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