Are you looking for the right stuff that would help you to crack AWS VPC Interview? Well, stay tuned in this updated blog. This blog has been mapped out by our senior mentors. We have provided the latest AWS VPC Interview Questions and Answers 2023 for freshers as well as experienced.
AWS VPC provides a complete isolated software environment for the client. VPC is the best platform to enhance its own secure cloud infrastructure. This extended environment is fully secured, can accumulate all required applications, and no additional charges are added.
It can also be used for backup, data recovery in any crisis, and also development tests. This AWS VPC is most suited to healthcare, finance, IT, and audit firms.
However, earlier than we soar at the AWS VPC Interview Questions, allow us to let you know a few crucial records approximately Amazon Web Services VPC:
The above factors in reality state the call for AWS VPC professionals. We are sure that our AWS VPC interview questions can help you in cracking the interview and bagging your dream job with the highest pay.
We have categorized AWS VPC Interview Questions - 2023 (Updated) into stages:
1. What exactly is AWS VPC?
2. What are the features available in AWS VPC?
3. Where do VPCs live?
4. Name a few companies that are using AWS VPC?
5. Tell me the scope of the VPC market?
6. Is VPC work globally?
7. Do you think that AWS VPC is equivalent to Azure?
8. Explain to me why Amazon thought to create VPC?
9. Tell me the basic difference between VPC and VPN?
10. How many VPC can be created in AWS Zone?
Ans: Cloud computing is based on Virtual Private Cloud ( VPC). This is the basic foundation of the AWS platform. Any of the advanced services of AWS can not be accessed without a VPC network. You will get a logically isolated section dedicated to a virtual network platform. Through this cloud, businesses can access customer details and data in a single window. It provides innovative new business approaches.
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Ans: This AWS VPC provides the given below features:
Ans: These VPCs are existing in the AWS roundabout. This AWS around a geographic area. It can be around the world in Amazon's clustered data centers. It is lived in that assigned geographical area only to maintain customer distribution. So that in different areas customers can not set up another VPC in another geographical area.
Ans: A few top-listed companies are
Ans: Yes, VPC works globally. All its components are also working globally. Obviously, they are divided into zone-to-crate Subnet networks.
Ans: Absolutely not. One virtual network is available in Azure, but they are not the same or related. Both of them have a few common features and different key features also.
Ans: Amazon has lots of physical data centers throughout the world. Now they were looking forward to creating virtual data centers. These data centers needed virtual networks and virtual network access. To manage this virtual cloud they have created VPC which actually gives access to clients in the virtual network with a private cloud zone. They kept access to other Amazon services.
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Ans: VPC is from Amazon Web Services. It has been created as per zone for giving access to clients. It depends on multiple Subnet. But a VPN is a gateway, actually. This is the access point of the VPN network.
Ans: You can create by default only 5 VPC in a single AWS zone.
Ans: Yes, we can use AWS VPC to enable our internet gateway. It gives permission to EC2 occurrences in VPC to directly access the internet. There are other options also.
We can also follow the given below steps:
Ans: If we want to build up our custom VPC, please follow the given below steps:
Ans: There are a few advantages, they are:
Ans: Yes, we can monitor the network traffic in VPC. There are flow logs that we need to follow.
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|Stateful Filtering||Stateless Filtering|
|1. Request origination point will be tracked.||1. Request origination point doesn't matter.|
|2. Reply will be sent automatically.||2. Doesn’t matter reply is sent automatically or not.|
|3. Reply returns to the originated computer.||3. Reply returns to the destination IP address and port.|
Ans: Yes, we can use our existing AMIs in the AWS VPC in the same registered zone.
Ans: AWS EC2 instances are very secure for the AWS VPC network. It can control both inbound and outbound traffic in the same zone. Once the EC2 instance declined any traffic, further, that traffic is not allowed.
|VPC Security Group||VPC ACLS|
|1. Fix the traffic coming from EC2 instances.||1. Fix the traffic coming from Subnet.|
|2. It can be used to set only allow.||2. It can be used to set allow and deny both.|
|3. Filter traffic between the same instances in the same Subnet.||3. Doesn’t filter traffic between the same instances in the same Subnet.|
|4. Perform stateful filtering.||4. Perform stateless filtering.|
Ans: Always keep remembering that while we are creating a subnet we need to mention the available zone. By using VPC Wizard, we can choose an available zone for the subnet. We can specify the available zone by using the API or CLI. If we don’t mention the available zone, then by default no permission options will be activated. The system will be choosing the available zone.
Ans: Default VPC means, it has been created by the system when one user is accessing first time any EC2 instance. Then one isolated virtual network will be created automatically in the same AWS VPC account.
Ans: Actually, the EC2 instance mentions the launching platform and the assigned zone. It also mentions whether you are a by default VPC or not. We can cross-check the zone in the navigation bar.
Ans: The answer is no. We can find out about it from the AWS management console in a by-fault VPC. AWS used to create one by default VPC. We need to create a default subnet for each available zone. Default VPC will be connected to the internet through the gateway automatically.
Ans: Obliviously, we can use existing AWS EBS snapshots if they are from the same VPC zone.
Ans: We need to use AWS EBS inside AWS VPC. The same IP address needs to be started, stopped, and restarted.
Ans: We can use AWS EC2 reversed instances if we do have purchased instances. AWS doesn’t look at whether we are buying instances run in AWS VPC or Standard AWS EC2. By default, AWS will charge for lower reversed instances, so we need to pay the lowest amount. But it depends upon the AWS VPC specified.
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Ans: Yes, we can delete it from the AWS console, in that case, if we connect with the AWS support team then they can help us to retrieve the old default VPC.
Ans: No, it can not work. Another peering connection can be stopped anytime. It hampers two-way traffic flows.
Ans: In this case, we need to try in those zones, where by using this existing EC2 instance no VPC has been created earlier. To support the present platform attributes we need to set EC2 and VPC.
Ans: We can use the existing VPC infrastructure to create a peering connection. Now, this peering connection doesn’t like any VPN gateway. The most important point is, that it doesn’t rely on any hardware. So there is less chance of communication failure.
Ans: I think we can not do this. By default, a peering connection can be done within the same VPC zone.
Ans: Yes, we can add more than two network interfaces in one EC2 instance, but it depends on the EC2 instance type. We need to follow the EC2 instance guidelines.
Ans: Yes. There are bandwidth limitations for peering connections. The peer VPC bandwidth is equal to instances bandwidth in the same VPC.
Ans: AWS VPC classic link is most important to connect EC2 instance classic form with the VPC using IP address. We need to activate this link in the VPC account. All by default rules will be applicable as per the VPC security group between the EC2 classic instance and the instance in the VPC.
Ans: If we want to use a classic link, then we need to activate at least one VPC in our account, particularly for the classic link. Now we need to tag one security group from the VPC with the expected classic link. Now our EC2 classic instance is connected to a VPC. This classic link is now a member of a security group in VPC. Please remember that the EC2 classic instance can not be connected to more than one VPC at a time.
Ans: No, EC2 classic instance can not be a member of VPC. Whereas it becomes a member of the VPC security group with the same instance. It has to follow all sets of rules.
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Ans: Yes, we can modify the VPC route table. This route table is related to the specific subnet and internet gateway.
Ans: This AWS VPC router allows the AWS EC2 instance to connect with another EC2 instance from another subnet but from the same VPC. It also allows subnet, internet gateway, and virtual private gateway to communicate with each other. Note that the network usage data is not available from the router.
Ans: One data center can connect hardware VPN with AWS VPC. AWS supports internet protocol security VPN connections only. The encrypted data will be transferred. VPN connection helps in data security while transiting. No internet gateway is required to establish a hardware VPN connection with AWS VPC.
Ans: Yes, we can not connect classic links with classes inter-domain routing. That router range will be 10.0.0.0/8, with the exception of 10.0.0.0/16 and 10.1.0.0/16. Even if the VPC route table entry points to 10.0.0.0/8 classless inter-domain routing space to target other than local only.
Ans: If the hardware VPN is connected to the existing network, then AWS VPC allows us to interact with the AWS EC2 instance within the same VPC network.
Ans: We need to assign one single classless internet IP address block when we create a VPC. The address will be the subnet within the same VPC. One VPC can assign at most only one IP address. Currently, multiple IP addresses assigning is not allowed in AWS. If we try to create multiple IP addresses by overlapping, then AWS won’t give permission to connect with the same VPC. We are requesting to follow non-overlapping IP address ranges.
Ans: The default range is 172.31.0.0/16.
Ans: Absolutely not. We can not change the VPC size once it’s created. But if required then we need to delete the same VPC from the console and need to create a new one.
Ans: We can get only 200 subnets per VPC. If we want to create more then we need to contact the AWS support team.
Ans: Yes, the minimum size is 14 IP addresses for IPv4. Note down that subnets can not be larger than in size from crated VPC.
Ans: Yes, we can do this. Once we are launching the AWS EC2 instance within a VPC, we may specify the primary IP address for that particular instance. Suppose, we forgot to mention the primary private IP address, then AWS will automatically assign an IP address range to the subnet. We can also assign a secondary private IP address at the time of instance launching.
Ans: We need to activate DNS hostname resolution. This will resolve these issues automatically.
Ans: This security group is actually like a virtual firewall for the AWS EC2 instance. It can control inbound and outbound traffic. One can assign 5 security groups to one instance. It works on the instance level always. It doesn’t work at the subnet level. So each instance in a particular subnet in the same VPC can be assigned to a different set of security groups. When we want to use AWS VPC API, then also this security group will work.
Ans: We can be benefited like:
It allows users to integrate data speed within multiple AWS services. It also analyzes from a single location. We can use a data pipeline to access the source directly. In this case, the data transfer efficiency level will be increased in AWS VPC.
CTA: Major growth factors of the Virtual Private Cloud market are ready to make your career uplift in the current era.
Once you have a firm grasp of the AWS VPC interview questions posed, it becomes quite simple to ace it and land the job. Therefore, make sure you refer to all of the questions listed above before appearing for the interview. Thoroughly navigate them and make an effort to comprehend each one individually. Finally, by being well-prepared, get the job you deserve. Best wishes!
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Madhuri is a Senior Content Creator at MindMajix. She has written about a range of different topics on various technologies, which include, Splunk, Tensorflow, Selenium, and CEH. She spends most of her time researching on technology, and startups. Connect with her via LinkedIn and Twitter .
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