Let's review the interview basics before diving straight into the questions.AWS's fundamental offering, Amazon Elastic Compute Cloud, makes cloud computing accessible and scalable by enabling users to run applications on virtual servers. An understanding of EC2 is essential for anyone hoping to capitalize on the increasing demand for cloud solutions across industries.Top 15 Interview Questions on AWS EC2 You Should ExpectIn order of difficulty, let's take a look at a list of questions ranging from simplest, intermediate, to the hardest:Q1. How do you believe the development of cloud technologies will impact your career path, specifically in relation to AWS EC2?The sector is changing as cloud technologies advance. The sophisticated capabilities of AWS EC2, such as serverless designs and resource optimization, are where I see my career going. I can maintain my competitive edge and promote innovation in cloud deployment by keeping up with automation and multi-cloud tactics.Q2. What about EC2's capabilities most excite you, and how do you think they can help businesses?I am excited by EC2's scalability and versatility. Its capacity to spin up instances rapidly enables companies to reduce expenses and boost productivity. Enhancing dependability with features like load balancing and auto-scaling helps businesses gain a competitive edge and adjust to shifting market conditions.Q3. Which classifications apply to EC2 instances?EC2 instances can be classified in the following forms:All-purpose: Equilibrated (T, M series)High CPU: Compute-optimized (C series)Memory-optimized: R and X series have high memory.Large data (I, D series) with optimal storage.GPU-intensive activities for accelerated computing (P, G, and F series).Q4. How does Auto Scaling on EC2 operate?Using CloudWatch data like CPU or network consumption, auto-scaling modifies EC2 instances dynamically based on demand, scaling out during traffic spikes and scaling in when traffic declines.Q5. When utilizing EC2, what does Elastic Load Balancing (ELB) entail?To avoid overload, ELB splits up incoming traffic among several EC2 instances. Integrating with auto-scaling may dynamically change the number of instances according to demand, enhancing fault tolerance and availability.Q6. How do Dedicated Instances and EC2 Dedicated Hosts vary from one another?With an EC2 Dedicated Host, I use a physical server that is all mine, and I have total control over instance placement and licensing compliance. In comparison to dedicated instances, I have more control over resources, compliance, and direct hardware visibility with it.Q7. What do you think is the connection between EC2 and a VPC?A VPC in Amazon is a logically segregated network where we can specify virtual network setups.We choose a VPC and subnets to manage elements such as IP address range, routing, and security.VPC allows the creation of public and private subnets and the implementation of security mechanisms such as security groups and network ACLs.Q8. What is the purpose of EC2 key pairs and how do they protect access to your instances?To establish safe SSH connections to Linux instances or RDP connections to Windows, we need EC2 key pairs, which are a compilation of a public and private key. While the private key stays with us, the public key is integrated into the instance during launch. This lowers the possibility of unwanted access.Q9. What distinguishes an EC2 Spot Fleet from a single Spot Instance?Using customizable price and capacity parameters, I can easily manage numerous Spot Instances using an EC2 Spot Fleet. Target prices, instance numbers, and instance types are all customizable. A single spot instance, which is purchased at the spot price available, offers cost savings without the wider management of a fleet.Q10. What part does AWS Config play in EC2 instance management?AWS Config helps us examine, audit, and review how our AWS resources, including EC2 instances, are configured.AWS Config rules can be defined automatically to compare instance configurations to desired settings.Maintaining visibility and oversight in cloud systems is crucial for upholding security and operational best practices.Q11. How should an EC2 instance's NAT gateway be configured?We first construct the gateway in a public subnet and give it an elastic IP address before configuring a NAT gateway for our EC2 instances in a private subnet. Next, we modify the private subnet's route table to direct internet traffic via the NAT Gateway, improving security by permitting outgoing connections while obstructing incoming ones.Q12. What is the purpose of Security Groups in EC2?Your EC2 instances' Security Groups function as virtual firewalls, efficiently controlling both inbound and outgoing traffic. By enabling you to set up precise rules for access control, they improve security by guaranteeing that, according to your specifications, only authorized traffic may reach your instances.Q13. How much do EC2 Reserved Instances cost, and what are their terms of service?Reserved instances come with large savings in exchange for your agreement to use the instance for one or three years. Additionally, there are three flexible payment options: No Upfront (pay as you go but with less discount), Partial Upfront (pay part now, some later), and All Upfront.Q14. What is the EC2 Placement Group, and how does performance become affected by it?You have more control over where your instances are located on the actual servers thanks to Placement Groups. A cluster placement allows you to cluster instances near one another if you're looking for extremely low latency and quick networking between them. Nevertheless, all of your instances could crash simultaneously if the hardware breaks.Q15. How is EC2 Hibernate implemented?Hibernating on EC2 is similar to turning off your computer. Everything in your RAM is saved to disk so that the instance resumes exactly where it left off when you restart it. Ideal for lengthy processes or situations where you don't want to start over from scratch.ConclusionTo wrap up, to pursue careers in cloud computing, you need to excel in AWS EC2. Being conscious of cloud technologies' capabilities and recommended procedures can help you adequately prepare for interviews. Having knowledge of EC2 features such as Auto Scaling, Elastic Load Balancing, and security protocols will enable you to provide innovative contributions as technology evolves.By following the advice in this article, you will achieve success in utilizing cloud computing.Read Morehttps://devopsden.io/article/interworx-SSL-protectionFollow us onhttps://www.linkedin.com/company/devopsden/
