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Exam 200-301 topic 1 question 1310 discussion

Actual exam question from Cisco's 200-301

Question #: 1310
Topic #: 1

SIMULATION
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Guidelines
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This is a lab item in which tasks will be performed on virtual devices.

• Refer to the Tasks tab to view the tasks for this lab item.
• Refer to the Topology lab to access the device console(s) and perform the tasks.
• Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
• All necessary preconfigurations have been applied.
• Do not change the enable password or hostname for any device.
• Save your configurations to NVRAM before moving to the next item.
• Click Next at the bottom of the screen to submit this lab and move to the next question.
• When Next is clicked, the lab closes and cannot be reopened.

Topology
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Tasks
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All physical cabling is in place and verified. Router R1 is configured and passing traffic for VLANs 5 and 6. All relevant ports are pre-configured as 802.1q trunks.

1. Configure SW-1 port E0/0 to permit only VLANS 5 and 6
2. Configure both SW-1 and SW-2's E0/1 ports to send and receive untagged traffic over VLAN 77
3. Configure SW-2 E0/2 port to permit only VLAN 6
4. Configure both SW-3 and SW-4 ports e0/0 and e0/1 for link aggregation using the industry standard protocol with the following requirements:

o SW-3 ports must immediately negotiate the aggregation protocol
o SW-4 ports must not initiate the negotiation for the aggregation protocol
o Use the designated number assignment

Show Suggested Answer

Suggested Answer:

by picho707 at Feb. 7, 2024, 12:15 a.m.

Comments

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Romero21

Highly Voted 1 year, 2 months ago

I don't think it is necessary to configure TRUNK as it is clearly said: "All relevant ports are pre-configured as 802.1q trunks." Maybe I am wrong and it is related only to R1 but it can be verified during the lab.

upvoted 6 times

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Joshua25

Most Recent 7 months, 3 weeks ago

Disagree with the 'correct answer'. VLAN 77 between SW-1 and SW-2 should use native vlan, or convert the link to an access link, because the stem says UNTAGGED.

upvoted 2 times

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Joshua25

7 months, 3 weeks ago

Cisco's questions are poorly worded. It's often ambiguous. Task 2 says 'untagged traffic over VLAN 77', but there are two methods: native vlan or access port. Which method do you want us to use? Task 3 says 'permit only VLAN 6'. This can be implemented by access port or permitted vlan (with native vlan left unused in the whole topology). Which one shall we use?

upvoted 1 times

Joshua25

7 months, 3 weeks ago

Also, task 3 is unclear and confusing. It says 'Configure SW-2 E0/2 port to permit only VLAN 6', but not mentioning SW-4 e0/2, which is the other end of the same link. If Cisco wants the examinees to configure an access link, then both ends need to be converted to access port. If Cisco wants 'switchport trunk allowed vlan 6', then SW-4 e0/2 needs to be reconfigured as well. In real work, there won't be such confusing situation, because people, either your client, your manager or yourself won't describe the task this way. In real work, you are more likely to say 'establish an access link for vlan 6 between SW-2 and SW-4' or 'establish a trunk between SW-2 and SW-4 allowing vlan 6 only', and then you will allocate a port on each of the two switches for this purpose and configure them.

upvoted 1 times

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Essohjay

9 months, 3 weeks ago

SW1 # config t SW1 (config)# int e0/0 SW1 (config-if) # switchport trunk allowed vlan 5,6 SW1 (config-if)# int e0/1 SW1 (config-if)# switchport trunk native vlan 77 Write memory SW2# config t SW2 (config)# int e0/1 SW2 (config-if) # switchport trunk native vlan 77 SW2 (config-if)# int e0/2 SW2 (config-if)# switchport trunk allowed vlan 6 Write memory SW3# config t SW3 (config)# int range e0/0-1 SW3(config int-range)# channel-group 34 mode active Write memory SW4# config t SW4 (config)# int range e0/0-1 SW4(config int-range)# channel-group 34 mode passive Write memory

upvoted 3 times

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bymrdas

1 year ago

SW-1 interface ethernet0/0 witchport trunk encapsulation dot1q switchport mode trunk switchpor trunk allowed vlan 5-6 wr interface ethernet0/1 witchport trunk encapsulation dot1q switchport mode trunk switchport trunk native vlan 77 wr SW-2 interface ethernet0/1 witchport trunk encapsulation dot1q switchport mode trunk switchport trunk native vlan 77 wr interface ethernet0/2 witchport trunk encapsulation dot1q switchport mode trunk switchport trunk allowed vlan 6 wr SW-3 interface range ethernet0/0-1 channel-group 34 mode active wr SW-4 interface range ethernet0/0-1 channel-group 34 mode passive wr interface port34 witchport trunk encapsulation dot1q switchport mode trunk no sh wr

upvoted 1 times

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lmmujsi

1 year, 2 months ago

! SW-1 Configurations enable conf t interface Ethernet0/0 switchport trunk allowed vlan 5,6 exit interface Ethernet0/1 switchport trunk native vlan 77 exit end copy running-config startup-config ! SW-2 Configurations enable conf t interface Ethernet0/1 switchport trunk native vlan 77 exit interface Ethernet0/2 switchport trunk allowed vlan 6 exit end copy running-config startup-config ! SW-3 Configurations enable conf t interface range Ethernet0/0 -1 channel-group 34 mode active exit interface Port-channel34 switchport mode trunk exit end copy running-config startup-config ! SW-4 Configurations enable conf t interface range Ethernet0/0 -1 channel-group 34 mode passive exit interface Port-channel34 switchport mode trunk exit end copy running-config startup-config

upvoted 3 times

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KuyaErik101

1 year, 2 months ago

ALL PORTS are preconfigured with 802.1q trunks Task1 SW-1 Conf t interface E0/0 switchport mode trunk switchport trunk allowed vlan 5,6 Task 2 Sw-1 conf t interface E0/1 switchport mode trunk switchport trunk native vlan 77 Sw-2 conf t interface E0/1 switchport mode trunk switchport trunk native vlan 77 Task 3 Sw-2 Conf t interface E0/2 switchport mode trunk switchport trunk allowed vlan 6 Task 4 Sw-3 Conf t interface range E0/0-1 Channel-group 34 mode active Sw-4 Conf t interface range E0/0-1 Channel-group 34 mode passive

upvoted 3 times

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d5c03de

1 year, 2 months ago

Task 1 SW-1(config)#int e0/0 SW-1(config-if)#switchport trunk encapsulation dot1q SW-1(config-if)#switchport mode trunk SW-1(config-if)#switchport trunk allowed vlan 5,6 Task 2 SW-1(config)#int e0/1 SW-1(config-if)#switchport mode trunk encapsulation dot1q SW-1(config-if)#switchport mode trunk SW-1(config-if)#switchport trunk native vlan 77 SW-2(config)#int e0/1 SW-2(config-if)#switchport trunk encapsulation dot1q SW-2(config-if)#switchport mode trunk SW-2(config-if)#switchport access vlan 77 Task 3 SW-2(config)#Int e0/2 SW-2(config-if)#switchport mode trunk encapsulation dot1q SW-2(config-if)#switchport mode trunk SW-2(config-if)#switchport trunk allowed vlan 6 Tsk 4 SW-3(config)#int range e0/0-1 SW-3(config-if-range)#channel-group 34 mode active SW-4(config)#int range e0/0-1 SW-4(config-if-range)#channel-group 34 mode passive Write memory

upvoted 3 times

d5c03de

1 year, 2 months ago

Correction on Task 2 for SW-2. Not "access vlan 77" it's, "native vlan 77"

upvoted 2 times

hands

1 year, 1 month ago

The question request untagged, considering that, both ways, mode trunk + native vlan and mode access, provide untagged traffic.

upvoted 1 times

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picho707

1 year, 3 months ago

Task 1 SW-1(config)#interface gi 0/0 SW-1(config-if)#switchport trunk encapsulation dot1q SW-1(config-if)#switchport mode trunk SW-1(config-if)#switchport trun allowed vlan 5,6 SW-1(config-if)#no shut Task 2 SW-1(config)#int gi 0/1 SW-1(config-if)#switchport mode access SW-1(config-if)#switchport access vlan 77 SW-1(config-if)#no shut SW-2(config)#interface gigabitEthernet 0/1 SW-2(config-if)#switchport mode access SW-2(config-if)#switchport access vlan 77 SW-2(config-if)#no shut

upvoted 2 times

DarkSniper

1 year, 3 months ago

I believe untagged traffic should use switchport trunk native vlan 77

upvoted 4 times

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picho707

1 year, 3 months ago

Task 3 SW-2(config)#interface gigabitEthernet 0/2 SW-2(config-if)#switchport mode access SW-2(config-if)#switchport access vlan 6 SW-2(config-if)#no shut Task 4 SW-3(config)#interface range gigabitEthernet 0/0-1 SW-3(config-if-range)#switchport trunk encapsulation dot1q SW-3(config-if-range)#switchport mode trunk SW-3(config-if-range)#channel-group 34 mode active Creating a port-channel interface Port-channel 34 Sw-4(config)#interface range gigabitEthernet 0/0-1 Sw-4(config-if-range)#switchport trunk encapsulation dot1q Sw-4(config-if-range)#switchport mode trunk Sw-4(config-if-range)#channel-group 34 mode passive

upvoted 1 times

bymrdas

1 year ago

What is it?

upvoted 1 times

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