Showing posts with label private. Show all posts
Showing posts with label private. Show all posts

June 03, 2022

Top 20 AWS Transit Gateway Interview Questions and Answers

 

AWS Transit Gateway is a central hub that links your Amazon Virtual Private Clouds (VPCs) and on-premises networks. This streamlines your network and eliminates complicated peering arrangements. It functions as a cloud router, establishing new connections only once.


AWS(Amazon Web Services) Interview Questions and Answers


Ques. 1): How do I decide which Amazon Virtual Private Clouds (VPCs) are allowed to speak with one another?

Answer:

Create numerous route tables in an AWS Transit Gateway and attach Amazon VPCs and VPNs to them to partition your network. This allows you to construct isolated networks within an AWS Transit Gateway, similar to how VRFs are used in traditional networks. There will be a default route table for the AWS Transit Gateway. Multiple route tables can be used if desired.


AWS Cloud Interview Questions and Answers


Ques. 2): What is the definition of a global network?

Answer:

In the AWS Transit Gateway Network Manager service, a 'Global Network' object represents your private global network in AWS. Your AWS Transit Gateway hubs, attachments, AWS partner SD-WAN network virtual appliances, and on-premises devices, sites, linkages, and connections are all included.


AWS AppSync Interview Questions and Answers


Ques. 3): In the same multicast domain, can I have both IGMP and static members?

Answer:

Yes, in the same multicast domain, you may have both IGMP and static members. By delivering IGMPv2 messages, IGMP-capable participants can dynamically join or exit a multicast group. Using the terminal, CLI, or SDK, you may add or delete static members from a multicast group.


AWS Cloud9 Interview Questions and Answers


Ques. 4): How does AWS Transit Gateway's routing work?

Answer:

Between connected Amazon VPCs and VPNs, AWS Transit Gateway provides both dynamic and static routing. The default route table is associated with Amazon VPCs, VPNs, Direct Connect gateways, Transit Gateway Connect, and peered Transit Gateways by default. You may associate Amazon VPCs, Direct Connect gateways, VPNs, Transit Gateway Connect, and peered Transit Gateways with extra route tables.

Depending on the packet's destination IP address, the routes determine the next hop. Routes can be configured to point to an Amazon VPC, a VPN connection, a Direct Connect gateway, a Transit Gateway Connect, or a peered Transit Gateway.


Amazon Athena Interview Questions and Answers


Ques. 5): What is AWS Transit Gateway Network Manager, and how does it work?

Answer:

The Network Manager function of AWS Transit Gateway is a feature of AWS Transit Gateway. It centralises networking resource administration and monitoring, as well as connectivity to remote branch sites.

 

AWS RedShift Interview Questions and Answers


Ques. 6): Is it possible to link Amazon VPCs with the same CIDRs?

Answer:

Routing across Amazon VPCs with identical CIDRs is not supported by AWS Transit Gateway. If you create a new Amazon VPC with a CIDR that is the same as an existing Amazon VPC, AWS Transit Gateway will not add the new Amazon VPC route to the AWS Transit Gateway route database.

 

AWS Cloud Practitioner Essentials Questions and Answers


Ques. 7): For the GRE tunnel and BGP addresses, can I use various address families?

Answer:

Yes, the GRE tunnel and BGP addresses can be in the same or distinct address families. You can, for example, set the GRE tunnel to use IPv4 addresses and the BGP addresses to use IPv6 addresses, and vice versa.


AWS EC2 Interview Questions and Answers


Ques. 8): What is AWS Transit Gateway Connect, and how does it work?

Answer:

A feature of AWS Transit Gateway is AWS Transit Gateway Connect. The native integration of SD-WAN (Software-Defined Wide Area Network) network virtual appliances into AWS Transit Gateway facilitates branch connectivity. Connect attachment is a new logical attachment type provided by AWS Transit Gateway Connect that uses Amazon VPC or AWS Direct Connect attachments as the underlying network transport. Over the Connect attachment, it supports common protocols including Generic Routing Encapsulation (GRE) and Border Gateway Protocol (BGP).


AWS Lambda Interview Questions and Answers


Ques. 9): Is it possible to share a multicast Transit Gateway?

Answer:

Yes, you may share a transit gateway multicast domain for VPC subnet associations between accounts or throughout your company in AWS Organizations using AWS Resource Access Manager (RAM).


AWS Cloud Security Interview Questions and Answers


Ques. 10): Can I link my AWS Transit Gateway to another account's Direct Connect gateway?

Answer:

Yes, you can link your AWS Transit Gateway to a separate AWS account's AWS Direct Connect gateway. An affiliation to a Direct Connect gateway can only be created by the owner of the AWS Transit Gateway. You can't link your AWS Transit Gateway to your Direct Connect gateway with Resource Access Manager.


AWS Simple Storage Service (S3) Interview Questions and Answers


Ques. 11): Is it possible to link a route table to a Connect attachment?

Answer:

Yes, you may associate a route table with the Connect attachment, just like you can with any other Transit Gateway attachment. This route table might be the same as or different from the route table associated with the VPC or AWS Direct Connect (underlying transport mechanism) attachment.


AWS Fargate Interview Questions and Answers


12) Which Amazon VPC functionalities aren't available in the first release?

Answer:

At this time, Amazon VPC does not enable Security Group Referencing. Security groups in other spokes linked to the same AWS Transit Gateway cannot be referenced by spoke Amazon VPCs.


AWS SageMaker Interview Questions and Answers


Ques. 13): What is the process for propagating routes into the AWS Transit Gateway?

Answer:

In the AWS Transit Gateway, routes are propagated in two ways:

Propagation of routes to/from on-premises networks: Routes will propagate between the AWS Transit Gateway and your on-premises router utilising Border Gateway Protocol when you connect VPN or Direct Connect Gateway (BGP).

Routes to/from Amazon VPCs: When you attach or resize an Amazon VPC to an AWS Transit Gateway, the Amazon VPC Classless Inter-Domain Routing (CIDR) will propagate into the AWS Transit Gateway route table utilising internal APIs (not BGP). CIDR is a technique of allocating IP addresses and IP routing that helps to reduce the expansion of routing tables on routers throughout the Internet and the quick expiration of IPv4 addresses. The Amazon VPC's route table will not receive routes from the AWS Transit Gateway route table. To transmit traffic to the AWS Transit Gateway, the VPC owner must construct a static route.

Route propagation is not supported via peering links between Transit Gateways. To send traffic on peering attachments, you must construct static routes in the Transit gateway route tables.


AWS DynamoDB Interview Questions and Answers


Ques. 14): AWS Transit Gateway complies with which compliance programmes?

Answer:

AWS Transit Gateway inherits Amazon VPC compliance and fulfils PCI DSS Level 1, ISO 9001, ISO 27001, ISO 27017, ISO 27018, SOC 1, SOC 2, SOC 3, FedRAMP Moderate, FedRAMP High, and HIPAA compliance requirements.


AWS Cloudwatch interview Questions and Answers


Ques. 15): What is the procedure for installing AWS Transit Gateway Network Manager?

Answer:

To set up and operate Transit Gateway Network Manager, follow the steps below:

Create a new 'global network' object that is initially empty.

AWS Transit Gateways can be registered from any AWS Region.

Adding on-premises and cloud resources: Enter details about your on-premises and cloud devices, sites, links, and connections. Connect peers and the Site-to-Site VPN connections they're connected to.

Network Manager's visualisations, events, and analytics let you keep track of your worldwide network.

 

AWS Elastic Block Store (EBS) Interview Questions and Answers


Ques. 16): When I register an AWS Transit Gateway, what resources are immediately added to the global network?

Answer:

All attachments are automatically added for registered AWS Transit Gateways. VPCs, VPNs, Direct Connect gateways, AWS Transit Gateway Connect, and AWS Transit Gateway peering are examples of attachments.


AWS Amplify Interview Questions and Answers 


Ques. 17): To route multicast traffic, which attachment kinds may I use?

Answer:

You may use a Transit Gateway to transport multicast traffic inside and between VPC attachments. AWS Direct Connect, AWS Site-to-Site VPN, and peering attachments do not enable multicast routing.

 

AWS Secrets Manager Interview Questions and Answers


Ques. 18): Is AWS Transit Gateway Connect compatible with IPv6?

Answer:

Yes, IPv6 is supported by AWS Transit Gateway Connect. IPv6 addresses can be configured for both the GRE tunnel and the Border Gateway Protocol (BGP).


AWS Django Interview Questions and Answers


Ques. 19): AWS Transit Gateway Network Manager is supported by which AWS partners?

Answer:

A number of notable SD-WAN partners support AWS Transit Gateway Network Manager. For further information, please see the Partners page. Their SD-WAN solutions' integration of Network Manager allows you to automate branch-cloud connectivity and delivers end-to-end network monitoring from a single dashboard.

 

AWS Cloud Support Engineer Interview Question and Answers


Ques. 20): What appliances are compatible with AWS Transit Gateway Connect?

Answer:

AWS Transit Gateway Connect will operate with any third-party network appliances that support standard protocols like GRE and BGP.


AWS Solution Architect Interview Questions and Answers


More AWS Interview Questions and Answers:


AWS Glue Interview Questions and Answers


AWS Cloud Interview Questions and Answers


AWS VPC Interview Questions and Answers         


AWS DevOps Cloud Interview Questions and Answers


AWS Aurora Interview Questions and Answers


AWS Database Interview Questions and Answers


AWS ActiveMQ Interview Questions and Answers


AWS CloudFormation Interview Questions and Answers


AWS GuardDuty Questions and Answers


AWS Control Tower Interview Questions and Answers


AWS Lake Formation Interview Questions and Answers


AWS Data Pipeline Interview Questions and Answers


Amazon CloudSearch Interview Questions and Answers 


AWS Transit Gateway Interview Questions and Answers


Amazon Detective Interview Questions and Answers


Amazon EMR Interview Questions and Answers


Amazon OpenSearch Interview Questions and Answers

 

April 25, 2022

Top 20 AWS VPC Interview Questions and Answers

 

VPC (Virtual Private Cloud) is one of the AWS services that is gaining traction in the tech employment market these days. Knowing the fundamentals of VPC might provide job seekers who want to work for Amazon Web Services an advantage. It is our responsibility to prepare you for this. As a result, we've compiled a list of the finest AWS VPC interview questions that frequently appear in AWS interviews. Before we get into that, let's go over some of the fundamentals of this technology that a newbie should be aware of while taking AWS training.

As most of you are aware, Amazon Web Services (AWS) is an Amazon subsidiary that offers cloud computing services based on user demand. Users must pay a monthly subscription fee. Amazon offers a variety of services that allow you to effortlessly integrate your local resources with the cloud. AWS S3 (Simple Storage Service) is an Amazon Web Services (AWS) service that offers object storage using several web service interfaces such as SOAP, BitTorrent, and others. Knowing how to respond to common AWS interview questions can give you an advantage over other candidates vying for a spot on the AWS team.


AWS(Amazon Web Services) Interview Questions and Answers

AWS Cloud Interview Questions and Answers


Ques. 1): Is there a limit to how many VPCs, VPNs, Subnets, and Gateways I can create?

Answer:

Those things are unquestionably constrained in their production. In a single region, you can only construct five VPCs. If you want to increase the limit, you'll need to increase the internet gateway as well.

VPNs, elastic IP addresses, NAT gateways, and internet gateways all have a maximum limit of five. The maximum number of subnets per VPC is 200.

Furthermore, there is a maximum of 50 customer portals per area.


AWS RedShift Interview Questions and Answers


Ques. 2): What Is It That Sets AWS VPC Apart From Other Private Clouds?

Answer:

The following two qualities distinguish AWS VPC from other cloud computing services:

When you need a private network in the cloud, it eliminates the need to set up and manage physical data centres, hardware, and/or virtual private networks.

AWS VPC is extremely secure against security and privacy threats because to its comprehensive security measures.


AWS Cloud Practitioner Essentials Questions and Answers


Ques. 3): What exactly is the meaning of the phrase "VPC"?

Answer:

VPC stands for Virtual Private Cloud, and it's a private network space within the Amazon cloud where you can deploy AWS resources. It's Amazon EC2's actual networking layer, which we've already talked about. Each virtual network in the cloud that you construct will be logically separated from other virtual networks in the cloud.

Although the layout of a VPC is similar to that of a typical network in a data centre, a VPC will benefit from AWS's scalable architecture. Another significant benefit of VPC is that it is completely customizable. You can create subnets, set up root tables, configure network gateways, setup network access control lists, choose IP address range, and many more in a Virtual Private Cloud.


AWS EC2 Interview Questions and Answers


Ques. 4): What is a Network Address Translation (NAT) Device?

Answer:

In your VPC, a NAT device will allow instances in the private subnet to send outward IPv4 traffic to other AWS services/the internet while preventing inbound traffic from the internet. When traffic is sent to the internet, the IP address is replaced by the address of the NAT device, and when the response is returned to the instances, the device translates the instances' addresses back to private IP addresses. There are two types of NAT devices available on AWS: NAT instance and NAT gateway. NAT instances are configured on Linux AMIs. IPv6 is not supported by NAT.


AWS Lambda Interview Questions and Answers


Ques. 5): What Are My Vpc's Connectivity Options?

Answer:

You can link your VPC to the following resources:

  • The World Wide Web (via an Internet gateway)
  • Using a Hardware VPN connection to access to your business data centre (via the virtual private gateway)
  • The Internet as well as your company's data centre (utilizing both an Internet gateway and a virtual private gateway)
  • AWS's other services (via Internet gateway, NAT, virtual private gateway, or VPC endpoints)
  • Other Virtual Private Clouds (via VPC peering connections)


AWS Cloud Security Interview Questions and Answers


Ques. 6): Is it possible to use Amazon VPC with Amazon Ec2 Reserved Instances?

Answer:

Yes. When you buy Reserved Instances, you can reserve an instance in Amazon VPC. AWS does not distinguish between instances running on Amazon VPC and normal Amazon EC2 when calculating your charge. AWS optimises which instances are charged at the reduced Reserved Instance rate, ensuring you pay the least amount possible. However, your instance reservation will be specific to Amazon VPC; for more information, visit the Reserved Instances page.


AWS Simple Storage Service (S3) Interview Questions and Answers


Ques. 7): Is it possible for Amazon Ec2 instances within a Vpc to communicate with Amazon Ec2 instances outside of the Vpc?

Answer:

Yes, it is correct. If an Internet gateway is set up, Amazon VPC traffic destined for Amazon EC2 instances outside of a VPC passes through the Internet gateway before entering the public AWS network to reach the EC2 instance. The traffic traverses the VPN connection, egresses from your datacenter, and then re-enters the public AWS network if an Internet gateway has not been established, or if the instance is in a subnet configured to route through the virtual private gateway.


AWS Fargate Interview Questions and Answers


Ques. 8): What is ELB (Elastic Load Balancing) and how does it effect Virtual Private Cloud?

Answer:

ELB is a load balancer service for AWS deployments, as the name implies. A load balancer spreads the amount of work that a computer must complete into other computers, allowing it to be completed faster. ELB distributes incoming application traffic to numerous destinations, such as EC2 instances, in the same way.

There are three types of ELBs that assure scalability, availability, and security for fault-tolerant applications. There are three types of load balancers: traditional, network, and application load balancers. VPC can be used in conjunction with network and application load balancers, which can route traffic to targets within VPCs.


AWS SageMaker Interview Questions and Answers


Ques. 9): What Are The Amazon Vpc Components?

Answer:

Amazon VPC comprises a variety of objects that will be familiar to customers with existing networks:

  • A Virtual Private Cloud (VPC): A logically isolated virtual network in the AWS cloud. You define a VPC’s IP address space from a range you select.
  • Subnet: A segment of a VPC’s IP address range where you can place groups of isolated resources.
  • Internet Gateway: The Amazon VPC side of a connection to the public Internet.
  • NAT Gateway: A highly available, managed Network Address Translation (NAT) service for your resources in a private subnet to access the Internet.
  • Hardware VPN Connection: A hardware-based VPN connection between your Amazon VPC and your datacenter, home network, or co-location facility.
  • Virtual Private Gateway: The Amazon VPC side of a VPN connection.
  • Customer Gateway: Your side of a VPN connection.
  • Router: Routers interconnect subnets and direct traffic between Internet gateways, virtual private gateways, NAT gateways, and subnets.
  • Peering Connection: A peering connection enables you to route traffic via private IP addresses between two peered VPCs.
  • VPC Endpoint for S3: Enables Amazon S3 access from within your VPC without using an Internet gateway or NAT, and allows you to control the access using VPC endpoint p
  • LI>Egress-only Internet Gateway: A stateful gateway to provide egress only access for IPv6 traffic from the VPC to the Internet.


AWS DynamoDB Interview Questions and Answers


Ques. 10): In a VPC, what IP address range can be used?

Answer:

For the principal CIDR block, you can use any IPv4 address range, including RFC 1918 or publicly routable IP ranges. Certain restrictions apply to secondary CIDR blocks. Publicly routable IP blocks can only be reached via the Virtual Private Gateway and cannot be reached via the Internet gateway. Customer-owned IP address blocks are not advertised on the Internet by AWS. Call the necessary API or use the AWS Management Console to assign an Amazon-provided IPv6 CIDR block to a VPC.


AWS Cloudwatch interview Questions and Answers


Ques. 11): What Is The Difference Between A Vpc's Security Groups And Network Acls?

Answer:

A VPC's security groups define which communication is permitted to and from an Amazon EC2 instance. Network ACLs assess traffic entering and exiting a network at the subnet level. Allow and Deny rules can be set using network ACLs. Traffic between instances in the same subnet is not filtered by network ACLs. Furthermore, network ACLs filter in a stateless manner, whereas security groups filter in a stateful manner.


AWS Elastic Block Store (EBS) Interview Questions and Answers


Ques. 12): You Really Want To Use My Ec2 Account's Default Vpc? Is that even conceivable?

Answer:

Yes, but we can only enable an existing account for a default VPC if that account has no EC2-Classic resources in that region. All non-VPC deployed Elastic Load Balancers, Amazon RDS, Amazon ElastiCache, and Amazon Redshift resources in that region must also be terminated. All future resource launches, including instances created via Auto Scaling, will be placed in your default VPC after your account has been configured for a default VPC. Contact AWS Support to get your existing account set up with a default VPC. To see if you're eligible for a default VPC, we'll look at your request as well as your existing AWS services and EC2-Classic presence.


AWS Amplify Interview Questions and Answers


Ques. 13): What Is The Best Way To Tell If My Account Is Set To Use A Default Vpc?

Answer:

The Amazon EC2 console shows you which platforms you can use to launch instances in the selected region, as well as whether you have a default VPC there. In the navigation bar, make sure the region you'll be using is selected. Look under "Account Attributes" on the Amazon EC2 console dashboard for "Supported Platforms." If both EC2-Classic and EC2-VPC are present, you can start instances on either platform. You can only launch instances into EC2-VPC if there is only one value, EC2-VPC. If your account is configured to use a default VPC, your default VPC ID will be presented under "Account Attributes". You can also use the EC2 DescribeAccountAttributes API or CLI to describe your supported platforms.


AWS Secrets Manager Interview Questions and Answers


Ques. 14): How to build a custom VPC?

Answer:

In order to build a custom VPC, the following steps must be followed:

  • Create a Virtual Private Cloud
  • Then create Subnets
  • Further create an Internet Gateway
  • Attach this new Gateway to your VPC
  • Create a new Route Table
  • Add the gateway as a route to the new route table
  • Add a subnet to the route table’s subnet association
  • Create a web server for public subnet and a database server for the private subnet
  • Create a new security group for the NAT
  • Add HTTP and HTTPS inbound rules that let in traffic from the private subnets IP
  • Create a NAT for public subnet
  • Create an elastic IP
  • Associate this IP to the NAT
  • Disable destination/source checks for the NAT
  •  Add NAT to the initial VPC route table as a route.


Top 20 AWS Django Interview Questions and Answers


Ques. 15): When it comes to filtering, what's the difference between stateful and stateless?

Answer:

Stateful filtering keeps track of the origin of a request and can send the response back to the original machine automatically. A stateful filter that enables inbound traffic to TCP port 80 on a web server, for example, will allow return traffic on a higher-numbered port (e.g., destination TCP port 63, 912) to pass through the stateful filter between the client and the webserver. The filtering device keeps track of the origin and destination port numbers and IP addresses in a state table. On the filtering device, only one rule is required: Allow inbound traffic on TCP port 80 to the web server.

Stateless filtering, on the other hand, merely looks at the source or destination IP address, as well as the destination port, regardless of whether the traffic is a new request or a response to a request. In the case above, the filtering device would need to implement two rules: one to allow traffic incoming to the web server on TCP port 80, and another to allow traffic outward from the web server (TCP port range 49, 152 through 65, 535).


AWS Cloud Support Engineer Interview Question and Answers


Ques. 16): What is Classiclink, exactly?

Answer:

VPC (Virtual Private Cloud) by Amazon (VPC) ClassicLink allows EC2 instances running on the EC2-Classic platform to communicate with VPC instances through private IP addresses. To use ClassicLink, you must first enable it for a VPC in your account and then link a Security Group from that VPC to an EC2-Classic instance. All of your VPC Security Group's policies will apply to communications between EC2-Classic instances and VPC instances.


AWS Solution Architect Interview Questions and Answers


Ques. 17): What is the best way to link a VPC to my corporate datacenter?

Answer:

By establishing a hardware VPN connection between your existing network and Amazon VPC, you can communicate with Amazon EC2 instances within a VPC as if they were on your local network. On Amazon EC2 instances in a VPC accessible via a hardware VPN connection, AWS does not execute network address translation (NAT).


AWS Glue Interview Questions and Answers


Ques. 18): How do I specify the Availability Zone in which my Amazon EC2 instances will be launched?

Answer:

When you create an Amazon EC2 instance, you must provide the subnet on which the instance will run. The instance will be deployed in the Availability Zone that corresponds to the subnet given.


AWS Aurora Interview Questions and Answers


Ques. 19): Why can't you ping the router that joins my subnets, or my default gateway?

Answer:

Ping (ICMP Echo Request and Echo Reply) requests to your VPC's router are not supported. Pinging between Amazon EC2 instances within a VPC is possible if your operating system's firewalls, VPC security groups, and network ACLs allow it.


AWS DevOps Cloud Interview Questions and Answers


Ques. 20): Is It Possible To Control And Manage Amazon Vpc Using The AWS Management Console?

Answer:

Yes, it is correct. VPCs, subnets, route tables, Internet gateways, and IPSec VPN connections can all be managed through the AWS Management Console. You can also construct a VPC with the help of a simple wizard.

AWS RDS Interview Questions and Answers

 


December 08, 2019

Top 20 Oracle Cloud Interview Questions & Answers



Ques: 1. What are the database related public cloud offerings in oracle cloud?

Answer:

Oracle public cloud offering comes with three database related services in the public cloud. They are as follows:

a) Schema as a Service (SAAS).

b) Database as a service (DAAS)– Also known as DBaaS, this public cloud is offered as both Infrastructure as a service IAAS and Platform as a Service PAAS.

c) Oracle database cloud Ex-Data service.

 

Oracle Fusion Applications interview Questions and Answers

 

Ques: 2. How will you provision an oracle database?

Answer:

As an oracle cloud dba, we collect requirements from customers and create it as per given requirements. In case your project needs a clone of production database immediately for testing and UAT purpose. for example, it can be done as per standard specification requirements often based on a template.

 

Oracle Accounts Payables Interview Questions and Answers

 

Ques: 3. Why should I choose oracle cloud over others, as there are many different cloud services available in market?
 

Answer:

Oracle cloud offers database as a service. Oracle database is the popular relational database company that has been in existence so long. With oracle databases supporting enterprise databases, this is a cloud service that can support databases that are used for testing, development, all the way up to live production databases. Oracle cloud offers high availability, scalability options offering business continuity, time save and lot more advantages. A cloud service from a database company to keep it simple.

 

Oracle ADF Interview Questions and Answers                                 

 

Ques: 4. what database management services are included in oracle cloud platform as service offering?

Answer:

Following database management services are included as part of Oracle cloud platform as a service PAAS: 

  • Database
  • Database backup 
  • Big Data
  • Big Data Cloud 
  • Event Hub 
  • MySQL 
  • Autonomous NoSQL Database Cloud 
  • Data hub
  • Autonomous Data Warehouse Cloud.

 

Oracle Access Manager Interview Questions and Answers

 

Ques: 5. Where can you store your oracle database backup in oracle cloud?
 

Answer:

Oracle cloud objects storage solution that is reliable and scalable. As of information from oracle website this is a 8000TB storage that is used for storing and accessing the data in databases that are ever growing. This is storage used for storing oracle database backup data.
 

Oracle Fusion HCM Interview Questions and Answers

 

Ques: 6. What are the unique features of oracle cloud database backup management offering?
 

Answer:

This is a reliable and scalable object data storage from oracle cloud. Some unique features includes:

  • Security – This solution comes with enterprise-grade data protection policies. The privacy policies are in enterprise grade as well. Oracle being the most popular enterprise database solution this cloud offerings from oracle are designed. 
  • Reliability – Redundancy policies ensure high availability of data. 
  • Scalability – Oracle cloud is a pay as you go model solution wherein you can choose to purchase universal credits, BYOL etc. Based on capacity and growing demands storage hardware is allocated making this a scalable solution. 
  • Simplification by using existing RMAN for backups – Even with cloud oracle is still making use of RMAN backup for performing the database backups. This makes backup, restore and recovery operations transparent using RMAN.

 

Oracle SCM Interview Questions and Answers

 

Ques: 7. What is the difference between normal database and Oracle database cloud service?
 

Answer:

Oracle database cloud service is same as single-instance oracle database except for that database is deployed in cloud and computing resources including storage, power etc is provided by Oracle.

 

Oracle Financials Interview questions and Answers


 

Ques: 8. What are the two service levels available with oracle database cloud service?
 

Answer:

Oracle Database Cloud Service Virtual image wherein customer is responsible for installing software, maintenance of software. Customer has root privilege and full database administrative privilege.
 

Oracle Database Cloud Service wherein database deployment is easy using custom options provided online. Oracle database cloud service can perform automated backups. Customer is responsible for setting up maintenance operations, recovery operation setup in the event of failure.


Oracle PL/SQL Interview Questions and Answers

 

Ques: 9. Which component of Oracle cloud provides service console and REST API?
 

Answer:

Platform Service Manager the PSM component of Oracle cloud is responsible for this. This component is the one used in Oracle golden gate and Oracle Java cloud service as well.

 

Oracle SQL Interview Questions and Answers

 

Ques: 10. How does PSM interact with compute nodes to perform predefined cloud service actions like backup, patching?
 

Answer:

PSM uses secure shell the SSH in port 22 of compute nodes. Compute nodes hosts databases which as database deployments in oracle cloud terms. These cations can be initiated over web service console that uses PSM or REST API.

 

Oracle RDMS Interview Questions and Answers

 

Ques: 11. How will you achieve high availability in Oracle Cloud Infrastructure?
 

Answer:

Attach block volume from availability domain 1 to a compute instance in availability domain 2 or vice versa. Distribute application servers across all availability domains within a region.


BI Publisher Interview Questions and Answers

 

Ques: 12. What are the components of backend set of a load balancer?

 

Answer:

a) Load balancing policy
b) list of backend servers
c) health check policy
d) SSL handling
e) session persistence configuration


Oracle 10g Interview Questions and Answers

 

Ques: 13. What are the many different database deployment model available with oracle cloud?
 

Answer:

Following are the many different types of database deployment models that come as part of oracle cloud:

  • Oracle database cloud service. 
  • Oracle database cloud service bare metal. 
  • Oracle Database Exadata Cloud Service. 
  • Oracle Database Exadata Cloud at Customer. 
  • Oracle Database Exadata Express Cloud Service – Managed. 
  • Oracle Database Schema Cloud Service – Managed.

 

Ques: 14. How can I try oracle cloud for free?
 

Answer:

Oracle cloud offers $300 in free credits. You can make use of this credit for building your test, development, production databases, compute options, containers, IoT, bigdata, API, chatbots, integrations and lots more that are valid for 30 days. Create a free account and try these features for free.

 

Ques: 15. How is internal communication between PSM and Oracle cloud compute nodes established?
 

Answer:

SSH key-value pairs are used for this communication in port 22. This key value pair is specific to each database deployment and used for internal communication purposes. This SSH is internal to Oracle and not accessible. If there is an issue here PSM communication with compute node fails.

  

Ques: 16. Who has access to the SSH keys used for PSM communication with compute nodes?
 

Answer:

Only owner of that project has this access. For security purposes even oracle support and operations are not granted this access unless explicitly shared by customers for troubleshooting purposes.

 

Ques: 17. Give some invalid REST API operations for DNS Zone in OCI:
 

Answer:

The below REST API operations are invalid in OCI:

a) ListZones.
b) GetZone.
c) CreateZone.
d) UpdateZone.
e) DeleteZone.

 

Ques: 18. In TCP level health check you send requests to the backend servers at a specific URL. How will you validate the response?

Answer:

a). based on status code.
b). based on entity data returned.
c). based on entity body returned.


Ques: 19. What load balancer components that are mandatory backend set components?

Answer:

a). Load balancing policy.
b). List of backend servers.
c). Health check policy.
d). TCP handling.
 

Ques: 20. What configurations must be made for the process of designing a load balancer to accept incoming traffic?

Answer:

a). Listener must be configured.
b). A certificate must be available.
c). A security list that is open on a listener port must be available.