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Exam 200-301 topic 1 question 354 discussion

Actual exam question from Cisco's 200-301
Question #: 354
Topic #: 1
[All 200-301 Questions]

Refer to the exhibit. What commands are needed to add a sub-interface to Ethernet0/0 on R1 to allow for VLAN 20, with IP address 10.20.20.1/24?

  • A. R1(config)#interface ethernet0/0 R1(config-if)#encapsulation dot1q 20 R1(config-if)#ip address 10.20.20.1 255.255.255.0
  • B. R1(config)#interface ethernet0/0.20 R1(config-if)#encapsulation dot1q 20 R1(config-if)#ip address 10.20.20.1 255.255.255.0
  • C. R1(config)#interface ethernet0/0.20 R1(config-if)#ip address 10.20.20.1 255.255.255.0
  • D. R1(config)#interface ethernet0/0 R1(config-if)#ip address 10.20.20.1 255.255.255.0
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by Retxed at Jan. 19, 2021, 1:14 p.m.

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ZayaB
Highly Voted 3 years, 9 months ago
For a Router on a stick, you need to: 1. create a sub-interface 2. encapsulate dot1q with the VLAN ID 3. Assign an IP address
upvoted 48 times
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[Removed]
Highly Voted 1 year, 4 months ago
Selected Answer: B
B is correct : R1(config)#interface ethernet0/0.20 R1(config-if)#encapsulation dot1q 20 R1(config-if)#ip address 10.20.20.1 255.255.255.0
upvoted 5 times
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[Removed]
Most Recent 7 months, 3 weeks ago
Selected Answer: B
B is correct
upvoted 3 times
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ZUMY
2 years, 4 months ago
B is correct
upvoted 1 times
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MonaHamed
2 years, 9 months ago
isn't that topic cancelled in 200-301?
upvoted 4 times
Nickname53796
2 years, 5 months ago
No, Cisco wants to trick us.
upvoted 3 times
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jerry19
3 years, 6 months ago
Answer B, sidenotes you must enter encap dot1q 20, in this case or you won't be able to enable 802.1q (and have vlan cross communications). The next step after you perform steps Zaya outlined would be to add your native subinterface. Which would entail "encap dot1q x native" with x being the native vlan. Native vlans are not assigned IP addresses. The physical interface is turned on and no ip is assigned to it.
upvoted 3 times
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Retxed
3 years, 9 months ago
Why letter b?
upvoted 2 times
ScorpionNet
2 years, 6 months ago
Because the administrator is configuring Router on a Stick
upvoted 1 times
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Media1993
3 years, 9 months ago
Read router ona stick and you will know why
upvoted 4 times
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C (25%)
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