Rectifying Slow Response Times for IT Administrators
Question
Your team is using a NAT instance on a Linux EC2 Instance.
The private subnet has a route added for 0.0.0.0/0 for the NAT instance.
This NAT instance is being used to download updates from the Internet for instances in the private subnet.
But the IT administrators who are in charge of applying the updates complain of slow response times.
What can be done to rectify this issue? Choose 2 answers from the options given below.
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.The issue with slow response times for downloading updates from the Internet for instances in the private subnet, which are being routed through a NAT instance, can be rectified by taking the following actions:
Replace the NAT instance with a NAT gateway: A NAT gateway is a fully managed service by AWS that provides better scalability, availability, and higher bandwidth than a NAT instance. A NAT gateway can support up to 45 Gbps of bandwidth and automatically scales based on traffic load. In contrast, a NAT instance is limited to the instance type and can become a bottleneck if the traffic load is too high. Replacing the NAT instance with a NAT gateway can significantly improve the response times for downloading updates.
Upgrade the NAT instance to a larger instance type: If replacing the NAT instance with a NAT gateway is not feasible, upgrading the NAT instance to a larger instance type can help improve the response times. A larger instance type provides more processing power, memory, and network bandwidth, which can help the NAT instance handle more traffic and reduce the bottleneck. However, upgrading the instance type may also increase the cost, so it's important to consider the cost implications before making the upgrade.
Therefore, the correct answers to rectify the issue are B and C. Adding another NAT instance and route may not solve the issue as it would still rely on the limitations of the NAT instance, and moving the NAT instance to the private subnet may not improve the performance significantly.
