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Exam AZ-120 topic 3 question 23 discussion

Actual exam question from Microsoft's AZ-120

Question #: 23
Topic #: 3

You plan to deploy an SAP environment on Azure.
During a bandwidth assessment, you identify that connectivity between Azure and an on-premises datacenter requires up to 5 Gbps.
You need to identify which connectivity method you must implement to meet the bandwidth requirement. The solution must minimize costs.
Which connectivity method should you identify?

A. an ExpressRoute connection
B. an Azure site-to-site VPN that is route-based
C. an Azure site-to-site VPN that is policy-based
D. Global VNet peering

Show Suggested Answer

Suggested Answer: B 🗳️
Azure site-to-site VPN is cheaper.
Incorrect Answers:
A: ExpressRoute could be quite expensive.
C: Policy-based gateways use static routing, and only work with site-to-site connections.
References:
https://docs.microsoft.com/en-us/azure/architecture/reference-architectures/hybrid-networking/vpn

by Sourabh1703 at June 25, 2020, 11:28 a.m.

Comments

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McDee

Highly Voted 4 years, 7 months ago

5 Gbps - 10 Gbps options are available with VPN (route based) and Express Route is too expensive comparatively. Ans is B

upvoted 11 times

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praveenkumarh1912

Highly Voted 4 years, 6 months ago

Answer should be B. Now even vpn supports upto 10GB. But when it comes to cheapest, it is VPN and not express route.

upvoted 9 times

Nav3

4 years, 5 months ago

can User VPN upto 10GB https://azure.microsoft.com/en-us/pricing/details/vpn-gateway/

upvoted 2 times

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4c78df0

Most Recent 8 months, 3 weeks ago

Selected Answer: B

correct

upvoted 1 times

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learning23497

2 years, 8 months ago

For all who need to know, why it is B and not C: Policy Based is only supported with SKU Basic which provides a bandwith of just up to 100Mb/s

upvoted 4 times

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d0bermannn

3 years, 3 months ago

correct

upvoted 1 times

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Sjn9

3 years, 8 months ago

B is correct.

upvoted 1 times

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Shub94

4 years ago

Ans: B

upvoted 2 times

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NarenderSingh

4 years ago

Given answer is OK

upvoted 2 times

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Bhagirathi

4 years, 1 month ago

SAP work load we can only recommend express route irrespective of cost .

upvoted 1 times

mfarag52

4 years ago

so what this the answer A or B

upvoted 1 times

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Bhagirathi

4 years, 1 month ago

https://azure.microsoft.com/en-us/pricing/details/vpn-gateway/ shows the rate card for VPN connections with different bandwidth for our case, we can choose VpnGw4 $2.10/hour 5 Gbps Max 30 1-10: Included 11-30: $0.015/hour per tunnel Max 5000 1-128: Included 129-5000: $0.01/hour per connection hence the answer shall be B.

upvoted 3 times

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challapalli

4 years, 2 months ago

B should be correct, please note that cost Q contains - The solution must minimize costs.

upvoted 2 times

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challapalli

4 years, 2 months ago

The solution must minimize costs. ??? If no cost concern was mentioned for sure it would be A. In this case answer will be B for sure.

upvoted 2 times

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Jeejay007

4 years, 3 months ago

Site to Site VPN uses IPsec where the bandwidth is limited to 1.25GBps. Express Route is the correct option. Answer is A.

upvoted 2 times

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GiuseppeF

4 years, 6 months ago

The right answer should be A. On https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpngateways is reported: On a single tunnel a maximum of 1 Gbps throughput can be achieved. Aggregate Throughput Benchmark in the above table is based on measurements of multiple tunnels aggregated through a single gateway. The Aggregate Throughput Benchmark is not a guaranteed throughput due to Internet traffic conditions and your application behaviors.

upvoted 1 times

khadar

4 years, 6 months ago

in the same link VPNGW4 of 5GB is available so answer is B since the requirement is the solution should be cost effective. ER is always expensive compared to site to site.

upvoted 4 times

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