ANS-C01 Exam - Question 5

Question

A company uses a 4 Gbps AWS Direct Connect dedicated connection with a link aggregation group (LAG) bundle to connect to five VPCs that are deployed in the us-east-1 Region. Each VPC serves a different business unit and uses its own private VIF for connectivity to the on-premises environment. Users are reporting slowness when they access resources that are hosted on AWS.

A network engineer finds that there are sudden increases in throughput and that the Direct Connect connection becomes saturated at the same time for about an hour each business day. The company wants to know which business unit is causing the sudden increase in throughput. The network engineer must find out this information and implement a solution to resolve the problem.

Which solution will meet these requirements?

Examice · Accepted Answer

To address the issue of slowness due to bandwidth saturation, the network engineer should review the Amazon CloudWatch metrics for VirtualInterfaceBpsEgress and VirtualInterfaceBpsIngress to determine which virtual interface (VIF) is sending the highest throughput during the period when slowness is observed. Once the problematic VIF is identified, the correct approach is to create a new 10 Gbps dedicated connection and shift traffic from the existing 4 Gbps connection to the new connection. AWS Direct Connect does not support upgrading the port speed of an existing connection; a new connection must be created to achieve the desired increase in bandwidth.

bogehad181 · Answer

A, can't upgrade DX

that1guy · Answer

A,
From: https://docs.aws.amazon.com/directconnect/latest/UserGuide/dedicated_connection.html
> "You cannot change the port speed after you create the connection request. To change the port speed, you must create and configure a new connection."

Untamables · Answer

A
The company has configured the Direct Connect connection stacked with LAG like the below AWS document in this scenario. It seems that there are 4 1-GB dedicated connections.
https://docs.aws.amazon.com/directconnect/latest/UserGuide/lags.html

Hence, you must monitor the entire traffic, not each dedicated connection traffic. Option C and D are wrong for this reason.
https://docs.aws.amazon.com/directconnect/latest/UserGuide/monitoring-cloudwatch.html

Option B is wrong. To change the port speed, you must create and configure a new connection.
https://docs.aws.amazon.com/directconnect/latest/UserGuide/dedicated_connection.html

SIX · Answer

A-Correct Answer
In AWS Direct Connect, you cannot upgrade an existing 4 x 1Gbps connection to a 10Gbps connection. Instead, you will need to create a new 10Gbps connection and move the traffic to the new connection.
https://repost.aws/questions/QUxprf4oUTRHyvs-SylrzNRw/can-aws-direct-connect-ports-be-upgraded-from-1-gbps-to-10-gbps.

slackbot · Answer

Obviously - DX connections cannot be upgraded. They can migrate the VIFs to the new DX conn

ranac · Answer

since the company is already using a 4 Gbps Direct Connect dedicated connection with a LAG bundle, upgrading the bandwidth of the existing dedicated connection to 10 Gbps will be a more cost-effective solution than creating a new 10 Gbps dedicated connection.

study_aws1 · Answer

A is correct.
However, the apprpriate parameter will be VirtualInterfacePpsEgress and VirtualInterfacePpsIngress, as it is related to packet rate i.e. throughput

ITgeek · Answer

AWS Direct Connect offers different port speeds, including 1 Gbps, 10 Gbps, and 100 Gbps. If you are currently using a 4 Gbps connection, it means you are likely using a 10 Gbps connection, but it is provisioned at 4 Gbps.

Balasmaniam · Answer

Any one paased?

gpt_test · Answer

By reviewing the Amazon CloudWatch metrics for VirtualInterfaceBpsEgress and VirtualInterfaceBpsIngress, the network engineer can identify which VIF is causing the sudden increase in throughput. Upgrading the bandwidth of the existing dedicated connection to 10 Gbps will help mitigate the issue of slowness due to saturation, ensuring that resources hosted on AWS can be accessed more efficiently.

emmanuelodenyire · Answer

Option B suggests upgrading the bandwidth of the existing dedicated connection to 10 Gbps after reviewing the CloudWatch metrics for VirtualInterfaceBpsEgress and VirtualInterfaceBpsIngress to determine which VIF is sending the highest throughput during the period of slowness. This solution would help identify which VIF is causing the problem and increase the bandwidth to alleviate the issue.

MEDES · Answer

A,
From: https://docs.aws.amazon.com/directconnect/latest/UserGuide/dedicated_connection.html
> "You cannot change the port speed after you create the connection request. To change the port speed, you must create and configure a new connection."

refewostak · Answer

Itexamstest.com

No Disscusion: A

marfee · Answer

I think that it's correcty answer is A.

Marfee400704 · Answer

I think that it's correct answer is A according to SPOTO products.

patanjali · Answer

Answer is A

https://aws.amazon.com/blogs/networking-and-content-delivery/upgrading-aws-direct-connect-to-100-gbps-in-5-steps/

Raphaello · Answer

A is the correct answer.
Need to create a new DX connection with the new speed.

ANS-C01 Exam - Question 5

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