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Exam Professional Cloud Network Engineer topic 1 question 151 discussion

Actual exam question from Google's Professional Cloud Network Engineer
Question #: 151
Topic #: 1
[All Professional Cloud Network Engineer Questions]

You have provisioned a Dedicated Interconnect connection of 20 Gbps with a VLAN attachment of 10 Gbps. You recently noticed a steady increase in ingress traffic on the Interconnect connection from the on-premises data center. You need to ensure that your end users can achieve the full 20 Gbps throughput as quickly as possible. Which two methods can you use to accomplish this? (Choose two.)

  • A. Configure an additional VLAN attachment of 10 Gbps in another region. Configure the on-premises router to advertise routes with the same multi-exit discriminator (MED).
  • B. Configure an additional VLAN attachment of 10 Gbps in the same region. Configure the on-premises router to advertise routes with the same multi-exit discriminator (MED).
  • C. From the Google Cloud Console, modify the bandwidth of the VLAN attachment to 20 Gbps.
  • D. From the Google Cloud Console, request a new Dedicated Interconnect connection of 20 Gbps, and configure a VLAN attachment of 10 Gbps.
  • E. Configure Link Aggregation Control Protocol (LACP) on the on-premises router to use the 20-Gbps Dedicated Interconnect connection.
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Suggested Answer: BC 🗳️
by playpacman at Dec. 1, 2022, 10:59 a.m.

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mshry
Highly Voted 1 year, 10 months ago
Selected Answer: BC
B & C; You can modify a VLAN attachment for capacity to 20 Gbps or create a new one for 10 Gbps https://cloud.google.com/network-connectivity/docs/interconnect/how-to/dedicated/modifying-vlan-attachments
upvoted 11 times
nosense
1 year, 10 months ago
looks like true
upvoted 3 times
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desertlotus1211
8 months, 1 week ago
Dedicated Interconnects have VLAN attachments of 10Gbps. You can't have 20Gbps C is wrong!
upvoted 1 times
ppandher
4 months ago
It's upto 50Gbps
upvoted 1 times
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playpacman
Highly Voted 1 year, 11 months ago
Selected Answer: CE
can only be C and E
upvoted 7 times
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1f01b87
Most Recent 1 month, 2 weeks ago
Selected Answer: BC
BC is correct
upvoted 1 times
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ian_gcpca
3 months, 4 weeks ago
Selected Answer: CE
based on this reference https://cloud.google.com/network-connectivity/docs/interconnect/how-to/dedicated/modifying-vlan-attachments we can conclude that the answer should be C - modifying bandwith VLAN attachment and E - https://cloud.google.com/network-connectivity/docs/interconnect/how-to/dedicated/modifying-interconnects
upvoted 1 times
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desertlotus1211
7 months, 2 weeks ago
For Dedicated Interconnect, connection capacity is delivered over one or more 10-Gbps or 100-Gbps Ethernet connections, with the following maximum capacities supported per Cloud Interconnect connection: 8 x 10-Gbps connections (80 Gbps total) 2 x 100-Gbps connections (200 Gbps total)
upvoted 1 times
anjanc
6 months, 2 weeks ago
the what's the correct answer?
upvoted 1 times
Positron75
5 months, 3 weeks ago
It's B and C. The Cloud Interconnect limit of 10 Gbps is irrelevant here because the question already tells us they have a 20 Gbps connection (meaning they must have 2 x 10 Gbps links). See here: https://cloud.google.com/network-connectivity/docs/interconnect/how-to/dedicated/creating-vlan-attachments#utilize_multiple_vlan_attachments This clearly states that you can use a 20 Gbps VLAN attachment if you have a 20 Gbps Interconnect. So you can either modify the attachment to 20 Gbps or you can configure a second one in the same region.
upvoted 1 times
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didek1986
1 year, 2 months ago
Selected Answer: BC
B,C is correct
upvoted 1 times
desertlotus1211
8 months, 1 week ago
For Dedicated Interconnect, connection capacity is delivered over one or more 10-Gbps or 100-Gbps Ethernet connections, with the following maximum capacities supported per Cloud Interconnect connection: 8 x 10-Gbps connections (80 Gbps total) 2 x 100-Gbps connections (200 Gbps total) each VLAN is 10Gbps max... C is wrong!
upvoted 1 times
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Laryoul
1 year, 5 months ago
Seams that E is not a good answer because even we have only 10Gb only we configure LACP. In our case we are already in LACP. I go with B&C
upvoted 1 times
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flyhighman
1 year, 10 months ago
Selected Answer: BC
can only be B & C
upvoted 4 times
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nextgencloud00
1 year, 10 months ago
agree with B&C as well
upvoted 3 times
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C (25%)
B (20%)
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