Top 20 Amazon Detective Interview Questions and Answers

 

        Amazon Detective makes this process easier by allowing your security teams to swiftly investigate and get to the bottom of a problem. Amazon Detective can automatically provide a single, interactive view of your resources, users, and their interactions across time by analysing billions of events from numerous data sources such as Virtual Private Cloud (VPC) Flow Logs, AWS CloudTrail, and Amazon GuardDuty. With this unified view, you can see all of the facts and context in one location, allowing you to rapidly uncover the main cause, dive down into relevant past events, and identify the underlying causes for the results.

 

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Ques. 1): What is Amazon Detective and how does it work?

Answer:

Amazon Detective makes it simple to research, evaluate, and swiftly pinpoint the source of suspected security concerns or suspicious behaviours. Amazon Detective collects log data from your AWS resources automatically and combines machine learning, statistical analysis, and graph theory to create a connected collection of data that allows you to perform security investigations quicker and more efficiently.

 

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Ques. 2): How can I connect the results of an Amazon Detective investigation to remediation and response tools?

Answer:

Amazon Detective has been connected with a number of partner security solution providers to allow investigative stages within their automated playbooks and orchestrations. These products provide users with links from within response workflows to Amazon Detective sites, which feature curated visualisations for studying results and resources discovered within the process.

 

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Ques. 3): How much does Amazon Detective cost?

Answer:

The cost of Amazon Detective is determined by the amount of data ingested from AWS CloudTrail logs, Amazon VPC Flow Logs, and Amazon GuardDuty results. Per account/region/month, you are paid per Gigabyte (GB) swallowed. For its analysis, Amazon Detective keeps up to a year's worth of aggregated data.  

 

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Ques. 4): What is the relationship between Amazon Detective and other AWS security services like Amazon GuardDuty and AWS Security Hub?

Answer:

By offering console connections with Amazon GuardDuty and AWS Security Hub, Amazon Detective allows cross-service user operations. From within their consoles, these services include links that take you immediately to an Amazon Detective page with a chosen selection of visualisations for examining the selected finding. The Amazon Detective discoveries detail page is automatically linked to the timeline of the finding and displays pertinent data related with it.

 

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Ques. 5): What are the main advantages of using Amazon Detective?

Answer:

Amazon Detective streamlines the investigation process, allowing security teams to perform investigations more quickly and effectively. The prebuilt data aggregations, summaries, and context in Amazon Detective let you quickly examine and determine the type and scope of any security vulnerabilities. Amazon Detective stores up to a year's worth of aggregated data and makes it accessible via a series of visualisations that highlight changes in the kind and volume of activity over time and correlate those changes to security discoveries. There are no upfront charges, and you just pay for the events that are examined; no additional software or log feeds are required.

 

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Ques. 6): How can I prevent Amazon Detective from accessing my logs and data sources?

Answer:

AWS CloudTrail logs, VPC Flow logs, and Amazon GuardDuty discoveries may all be analysed and visualised using Amazon Detective. To prevent Amazon Detective from analysing these logs and discoveries for your accounts, deactivate the service via the API or via the Amazon Detective settings section in the AWS Console.

 

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Ques. 7): How do I make Amazon Detective work for me?

Answer:

You can use the AWS Management Console or the Amazon Detective API to enable Amazon Detective. To get the greatest cross-service experience, enable Amazon Detective with the same account that is the Master account in Amazon GuardDuty or AWS Security Hub.

 

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Ques. 8): What is the difference between Amazon Detective and Amazon GuardDuty and AWS Security Hub?

Answer:

Amazon GuardDuty is a threat detection service that protects your AWS accounts and workloads by continually monitoring for harmful activity and illegal conduct. You may use Security Hub to consolidate, organise, and prioritise security alerts and discoveries across several AWS services, including Amazon GuardDuty, Amazon Inspector, and Amazon Macie, as well as AWS Partner solutions. Amazon Detective makes it easier to investigate security issues and pinpoint the source of the problem. Amazon Detective automatically constructs a graph model from billions of events from numerous data sources, such as VPC Flow Logs, AWS CloudTrail logs, and Amazon GuardDuty discoveries, to provide you a consistent, interactive picture of your resources, users, and their interactions across time.

 

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Ques. 9): How soon does Amazon Detective get to work?

Answer:

As soon as Amazon Detective is activated, it begins collecting log data and delivers visual summaries and analytics on the ingested data. Amazon Detective also allows you to compare recent behaviour to previous baselines created after two weeks of account monitoring.

 

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Ques. 10): Is it possible to utilise Amazon Detective without having Amazon GuardDuty enabled?

Answer:

Before you enable Amazon Detective on your accounts, you must first enable Amazon GuardDuty on those accounts for at least 48 hours. Detective, on the other hand, may be used to look into more than simply your GuardDuty results. Amazon Detective delivers thorough summaries, analyses, and visualisations of your AWS accounts, EC2 instances, AWS users, roles, and IP addresses' activities and interactions. This data can help you figure out what's going on with your account, whether it's a security concern or something more mundane.

 

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Ques. 11): What is the best way to get started with Amazon Detective?

Answer:

With a few clicks in the AWS Management portal, you may enable Amazon Detective. Once activated, Amazon Detective automatically organises data into a graph model, which is updated as new data becomes available. You may try out Amazon Detective and start looking into any security vulnerabilities.

 

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Ques. 12): What recommendations does Amazon Detective provide for investigating a security issue?

Answer:

Amazon Detective presents context and insights into AWS resources such as AWS accounts, EC2 instances, users, roles, IP addresses, and Amazon GuardDuty results through a range of visualisations. Each visualisation is intended to answer a specific topic that may arise as you review the data and activities. Each visualisation comes with with instructions on how to understand the panel and utilise the data to answer your investigation questions.

 

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Ques. 13): Is it possible to export Amazon Detective's raw log data?

Answer:

AWS CloudTrail logs and VPC Flow Logs are analysed by Amazon Detective, however the raw logs are not available for export. You may export these logs from AWS using other services.

 

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Ques. 14): Is Amazon Detective a domestic or international service?

Answer:

Amazon Detective is a tool that allows you to swiftly evaluate behaviour across all of your accounts in each location. It must be activated region by region. This guarantees that the data being evaluated is geographically specific and does not cross AWS regional boundaries.

 

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Ques. 15): What information does Amazon Detective save, is it encrypted, and can I choose which data sources to use?

Answer:

Amazon Detective follows the AWS shared responsibility model, which includes data protection standards and procedures. For any accounts where Amazon Detective has been activated, data from AWS CloudTrail logs, VPC Flow Logs, and Amazon GuardDuty discoveries will be processed.

 

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Ques. 16): What types of data does Amazon Detective look at?

Answer:

Customers may use Amazon Detective to see summaries and analytical data connected with AWS CloudTrail events and VPC Flow Logs. Detective also handles Amazon GuardDuty results for clients that have Amazon GuardDuty activated.

 

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Ques. 17): Is it possible to use Amazon Detective to handle several accounts?

Answer:

Yes, Amazon Detective is a multi-account service that collects data from monitored member accounts and consolidates it into a single master account for the same area. You can set up multi-account monitoring installations in Amazon GuardDuty and AWS Security Hub the same way you set up master and member accounts.

 

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Ques. 18): Is allowing Amazon Detective going to put my existing AWS workloads at risk of performance or availability?

Answer:

Because Amazon Detective obtains log data and discoveries straight from AWS services, it has no influence on the performance or availability of your AWS infrastructure.

 

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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.

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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.

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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.

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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.

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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.

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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.

 

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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.

 

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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.

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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).

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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).

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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.

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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.

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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.

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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.

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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.

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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.

 

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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.

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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.

 

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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).

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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.

 

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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.

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Top 20 Amazon CloudSearch Interview Questions and Answers

 

Amazon CloudSearch is a managed service in the AWS Cloud that makes setting up, managing, and scaling a search solution for your website or application simple and cost-effective.

Amazon CloudSearch is available in 34 languages and includes popular search features including highlighting, autocomplete, and geographical search.

With Amazon CloudSearch, you can quickly add rich search capabilities to your website or application. You don't need to become a search expert or worry about hardware provisioning, setup, and maintenance. With a few clicks in the AWS Management Console, you can create a search domain and upload the data that you want to make searchable, and Amazon CloudSearch will automatically provision the required resources and deploy a highly tuned search index.

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Ques. 1): How can you rapidly add rich search features to your website or application with Amazon CloudSearch?

Answer:

You won't have to learn how to search or bother about hardware provisioning, setup, or maintenance. You can build a search domain and upload the data you want to make searchable with a few clicks in the AWS Management Console, and Amazon CloudSearch will automatically supply the resources and deploy a finely tailored search index.

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Ques. 2): Is there a financial benefit to adopting the latest Amazon CloudSearch version?

Answer:

On each instance type, the current version of Amazon CloudSearch has enhanced index compression and support for bigger indexes. As a consequence, the new edition of Amazon CloudSearch is more efficient than the old one and can save you money.

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Ques. 3): What is the definition of a search engine?

Answer:

A search engine allows you to rapidly locate the best matched results by searching enormous collections of largely textual data items (called documents). The most common type of search request is a few words of unstructured text, such as "matt damon movies." The best matched, or most relevant, items are generally listed first in the returning results (the ones that are most "about" the search words).

Documents can be fully unstructured or have various fields that can be searched separately if desired. For example, a movie search service may include documents with title, director, actor, description, and reviews fields. A search engine's results are usually proxies for the underlying content, such as URLs that point to specific web pages. The search service, on the other hand, may retrieve the actual contents of particular fields.

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Ques. 4): How can I restrict access to my search domain for certain users?

Answer:

For the configuration service and all search domain services, Amazon CloudSearch enables IAM integration. You may give users complete access to Amazon CloudSearch, limit their access to select domains, and allow or disallow certain operations.

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Ques. 5): What are the advantages of Amazon CloudSearch?

Answer:

Amazon CloudSearch is a fully managed search service that expands automatically to meet the volume of data and complexity of search queries in order to provide quick and accurate results. Customers may use Amazon CloudSearch to provide search functionality without having to worry about managing servers, traffic and data scalability, redundancy, or software packages. Users only pay for the resources they use at modest hourly rates. When compared to owning and administering your own search environment, Amazon CloudSearch can provide a much reduced total cost of ownership.

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Ques. 6): How can I figure out the instance type to use for my first setup?

Answer:

Start with the default settings of a single tiny search instance for datasets of less than 1 GB of data or less than one million 1 KB documents. Consider pre-warming the domain by specifying the preferred instance type for bigger data sets. Start with a big search instance for data sets up to 8 GB. Start with an extra big search instance for datasets between 8 and 16 GB. Start with a double extra big search instance for datasets between 16 and 32 GB.

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Ques. 7): Is it possible to utilise Amazon CloudSearch in conjunction with a storage service?

Answer:

A storage service and a search service work together. Your documents must already be saved someplace for a search service to work, whether it's in files on a file system, data in Amazon S3, or records in an Amazon DynamoDB or Amazon RDS instance. The search service is a quick retrieval system that indexes those objects and makes them searchable with sub-second latency.

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Ques. 8): What is the purpose of the new Multi-AZ feature? Will there be any downtime if something goes wrong with my system?

Answer:

When you select the Multi-AZ option, Amazon CloudSearch instances in either zone may handle the full load in the case of a failure. If a service outage occurs or instances in one Availability Zone become unusable, Amazon CloudSearch redirects all traffic to the other Availability Zone. Without any administrator intervention or service disturbance, redundant instances are restored in a different Availability Zone.

Some in-flight searches may fail and must be performed again. Updates provided to the search domain are saved indefinitely and will not be lost if the server goes down.

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Ques. 9): Is it possible to utilise Amazon CloudSearch with a database?

Answer:

Databases and search engines aren't mutually exclusive; in fact, they're frequently utilised together. If you already have a database with structured data, you might use a search engine to intelligently filter and rank the contents of the database using search terms as relevance criteria.

Both organised and unstructured data may be indexed and searched using a search service. Content can come from a variety of places, including database fields, files in various formats, web pages, and so on. A search service can allow custom result ranking as well as unique search capabilities like utilising facets for filtering that aren't accessible in databases, such as using facets for filtering.

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Ques. 10): What is the maximum amount of data I can store on my search domain?

Answer:

The number of partitions you'll require is determined by your data and setup, therefore the most data you may upload is the set of data that results in 10 search partitions when your search configuration is applied. Your domain will cease accepting uploads if you reach your search partition limit unless you remove documents and re-index it.  

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Ques. 11): What are the most recent instance types for CloudSearch?

Answer:

To replace the earlier CloudSearch instance types, we announced new CloudSearch instance types in January 2021. Search.small, search.medium, search.large, search.xlarge, and search.2xlarge are the most recent CloudSearch instances, and they are one-to-one replacements for previous instances; for example, search.small replaces search.m1.small. The new instances are built on top of the current generation of EC2 instance types, resulting in improved availability and performance at the same price.

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Ques. 12): How does my search domain scale to suit the requirements of my application?

Answer:

Data and traffic scale in two dimensions in search domains. As your data volume rises, you'll need additional (or larger) Search instances to hold your indexed data, and your index will be divided amongst them. Each Search Partition must be replicated when your request volume or complexity grows, providing more CPU for that Search Partition. If your data requires three search partitions, for example, your search domain will have three search instances. When your traffic exceeds the capability of a single search instance, each partition is duplicated to offer extra CPU capacity, thereby expanding your search domain to three search instances. Additional copies, up to a maximum of 5, will be added to each search partition as traffic grows.

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Ques. 13): My domain hosts CloudSearch instances from the previous generation, such as search.m2.2xlarge. Is my domain going to be migrated?

Answer:

Yes, in later rounds of the migration, your domain will be transferred to corresponding new instances. Search.m2.2xlarge, for example, will be renamed to search.previousgeneration.2xlarge. These instances are the same price as the old instances, but they give improved domain stability.

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Ques. 14): What exactly is faceting?

Answer:

Faceting allows you to group your search results into refinements, which the user may then utilise to do more searches. For instance, if a user searches for "umbrellas," facets allow you to sort the results by price ranges like $0-$10, $10-$20, $20-$40, and so on. Result counts may also be incorporated in facets in Amazon CloudSearch, such that each refinement contains a count of the number of documents in that group. For instance, $0-$10 (4 things), $10-$20 (123 items), $20-$40 (57 items), and so on.

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Ques. 15): What is the best way to change our domains to reflect the new instances?

Answer:

Your domain will be effortlessly moved to the new instances. You are not required to take any action. Amazon will execute this migration in stages over the following few weeks, starting with domains that are using the CloudSearch 2013 version. Once your domain has been upgraded to the new instance types, you will receive a message in the console. Any new domains you establish will start using the new instances immediately.

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Ques. 16): What data types does Amazon CloudSearch support in its latest version?

Answer:

Amazon Text and literal text fields are supported by CloudSearch. Individual words that potentially serve as matches for queries are determined by processing text fields according to the language defined for the field. Literal fields, including case, are not processed and must match perfectly. In addition, CloudSearch supports the following numeric types: int, double, date, and latlon. Signed 64-bit integer values are stored in int fields. Floating point values of double width are stored in double fields. Date fields store dates in UTC (Universal Time) format, as defined by IETF RFC3339: yyyy-mm-ddT00:00:00Z. A location is kept as a latitude and longitude value pair in Latlon fields.

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Ques. 17): Is it possible to use the console to access the latest version of Amazon CloudSearch?

Answer:

Yes. You may use the console to access the updated version of Amazon CloudSearch. You may choose the version of Amazon CloudSearch you wish to use when creating new search domains if you're an existing Amazon CloudSearch client with existing search domains. New clients will be automatically switched to the new version of Amazon CloudSearch, with no access to the 2011-01-01 version.

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Ques. 18): Is it possible to use Amazon CloudSearch with several AZs?

Answer:

Yes. Multi-AZ installations are supported by Amazon CloudSearch. When you choose the Multi-AZ option, Amazon CloudSearch creates and maintains additional instances in a second Availability Zone for your search domain to provide high availability. Updates are applied to both Availability Zones' instances automatically. In the case of a failure, search traffic is dispersed over all instances, and instances in either zone are capable of bearing the full load.

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Ques. 19): Is it necessary for my documents to be in a specific format?

Answer:

You must format your data in JSON or XML to make it searchable. A document represents each item you wish to be able to obtain as a search result. Every document includes a unique document ID as well as one or more fields containing the data you wish to search for and return in results. According to the index fields set for the domain, Amazon CloudSearch creates a search index from your document data. You submit modifications to add or remove documents from your index as your data changes.

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Ques. 20): What steps can you take to avoid 504 errors?

Answer:

Try switching to a bigger instance type if you're getting 504 problems or a lot of replication counts. If you're experiencing trouble using m3.large, for example, try m3.xlarge. If you're still getting 504 problems after pre-scaling, batch the data and lengthen the time between retries.

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