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New Cisco 300-115 Exam Dumps Collection (Question 13 - Question 23)

Q1. DHCP snooping and IP Source Guard have been configured on a switch that connects to several client workstations. The IP address of one of the workstations does not match any entries found in the DHCP binding database. Which statement describes the outcome of this scenario?

A. Packets from the workstation will be rate limited according to the default values set on the switch.

B. The interface that is connected to the workstation in question will be put into the errdisabled state.

C. Traffic will pass accordingly after the new IP address is populated into the binding database.

D. The packets originating from the workstation are assumed to be spoofed and will be discarded.

Answer: D


Q2. 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


Q3. Refer to the exhibit.

Which configuration ensures that the Cisco Discovery Protocol packet update frequency sent from DSW1 to ALS1 is half of the default value?

A. DSW1(config)#cdp timer 90

B. DSW1(config-if)#cdp holdtime 60

C. DSW1(config)#cdp timer 30

D. DSW1(config)#cdp holdtime 90

E. DSW1(config-if)#cdp holdtime 30

F. DSW1(config-if)#cdp timer 60

Answer: C


Q4. 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.

What percentage of the outgoing traffic from the 172.16.10.0/24 subnet is being forwarded through R1?

A. R1-0%

B. R1-50 %, R2-50%

C. R2-100%

D. R1-100%

Answer: D


Q5. 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


Q6. Which configuration command ties the router hot standby priority to the availability of its interfaces?

A. standby group

B. standby priority

C. backup interface

D. standby track

Answer: D


Q7. In a Cisco switch, what is the default period of time after which a MAC address ages out and is discarded?

A. 100 seconds

B. 180 seconds

C. 300 seconds

D. 600 seconds

Answer: C


Q8. CORRECT TEXTSWITCH.com is an IT company that has an existing enterprise network comprised of two layer 2 only switches; DSW1 and ASW1. The topology diagram indicates their layer 2 mapping. VLAN 20 is a new VLAN that will be used to provide the shipping personnel access to the server. Corporate polices do not allow layer 3 functionality to be enabled on the switches. For security reasons, it is necessary to restrict access to VLAN 20 in the following manner:

u2022 Users connecting to VLAN 20 via portfO/1 on ASW1 must be authenticated before they are given access to the network. Authentication is to be done via a Radius server:

u2022 Radius server host: 172.120.40.46

u2022 Radius key: rad123

u2022 Authentication should be implemented as close to the host as possible.

u2022 Devices on VLAN 20 are restricted to the subnet of 172.120.40.0/24.

u2022 Packets from devices in the subnet of 172.120.40.0/24 should be allowed on VLAN 20.

u2022 Packets from devices in any other address range should be dropped on VLAN 20.

u2022 Filtering should be implemented as close to the serverfarm as possible.

The Radius server and application servers will be installed at a future date. You have been tasked with implementing the above access control as a pre-condition to installing the servers. You must use the available IOS switch features.

Answer:

The configuration:

Step1: Console to ASW1 from PC console 1 ASW1(config)#aaa new-model

ASW1(config)#radius-server host 172.120.39.46 key rad123 ASW1(config)#aaa authentication dot1x default group radius ASW1(config)#dot1x system-auth-control ASW1(config)#inter fastEthernet 0/1

ASW1(config-if)#switchport mode access ASW1(config-if)#dot1x port-control auto ASW1(config-if)#exit

ASW1#copy run start

Step2: Console to DSW1 from PC console 2 DSW1(config)#ip access-list standard 10 DSW1(config-ext-nacl)#permit 172.120.40.0 0.0.0.255 DSW1(config-ext-nacl)#exit

DSW1(config)#vlan access-map PASS 10 DSW1(config-access-map)#match ip address 10 DSW1(config-access-map)#action forward DSW1(config-access-map)#exit DSW1(config)#vlan access-map PASS 20 DSW1(config-access-map)#action drop DSW1(config-access-map)#exit DSW1(config)#vlan filter PASS vlan-list 20

DSW1#copy run start


Q9. A network engineer is trying to deploy a PC on a network. The engineer observes that when the PC is connected to the network, it takes 30 to 60 seconds for the PC to see any activity on the network interface card. Which Layer 2 enhancement can be used to eliminate this delay?

A. Configure port duplex and speed to auto negotiation.

B. Configure port to duplex full and speed 1000.

C. Configure spanning-tree portfast.

D. Configure no switchport.

Answer: C


Q10. A network engineer wants to add a new switch to an existing switch stack. Which configuration must be added to the new switch before it can be added to the switch stack?

A. No configuration must be added.

B. stack ID

C. IP address

D. VLAN information

E. VTP information

Answer: A


Q11. What is the maximum number of switches that can be stacked using Cisco StackWise?

A. 4

B. 5

C. 8

D. 9

E. 10

F. 13

Answer: D


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