Answer – B, D and F

We need to create Namespace first then Topics and finally Subscription as following flow chart

You should first create a Service Bus Namespace. Option E is incorrect since creating a Namespace for each restaurant would just be a maintenance overhead and difficult to keep track of via a program.

Here since the driver needs to choose the restaurant, that means the driver can be a subscriber.

Here you should have just one Topic. If you have multiple topics, then an order needs to be sent to all topics. Then deleting an order once it has been picked by a driver will an issue. So, Option A gets ruled out.

You can create subscriptions and create rules based on driver and area.

For more information on Azure Service Bus, one can go to the below link

• https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-messaging-overview

Answer – A

An example of this is given in the Microsoft documentation

Since this is clearly mentioned, all other options are incorrect

For more information on API management transformation URL’s, one can go to the below link

• https://docs.microsoft.com/en-us/azure/api-management/api-management-transformation-policies

Answer - B

You can use policy expressions and find and replace to format the text in the response. An example of this is given in the Microsoft documentation

Since this is clearly mentioned, all other options are incorrect

For more information on API management transformation URL’s and a blog article  on the same, one can go to the below link

• https://docs.microsoft.com/en-us/azure/api-management/api-management-transformation-policies
• https://azure.microsoft.com/fr-fr/blog/policy-expressions-in-azure-api-management/

Answer - A

An example of this is given in the Microsoft documentation

Since this is clearly mentioned, all other options are incorrect

For more information on API management transformation URL’s, one can go to the below link

• https://docs.microsoft.com/en-us/azure/api-management/api-management-transformation-policies

Answer – D

Adaptive sampling is the default for the ASP.NET SDK. Adaptive sampling automatically adjusts to the volume of telemetry that your app sends. It operates automatically in the SDK in your web app so that telemetry traffic on the network is reduced.

Option B: Daily Cap is also a possible answer, but it has a major disadvantage. In case of data capacity is exhausted at any point during the day, then rest of the day, no data will be ingested and hence in case of any problem in the VM will not be notified. Hence this is not recommended.

For more information on managing costs for Application Insights, one can go to the below link

https://docs.microsoft.com/en-us/azure/azure-monitor/app/pricing#managing-your-data-volume

Answer – A

The right way is to use the IDatabase interface. Also, you need to use the GetDatabase() method. This is also mentioned in the Microsoft documentation.

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on an example on how to work with Azure Cache for Redis from .Net, one can go to the below link

• https://docs.microsoft.com/en-us/azure/azure-cache-for-redis/cache-dotnet-how-to-use-azure-redis-cache

Answer – A

Since you have to invalidate the cache, you have to delete the Key itself

Option B is incorrect since you need to work with keys and not the values

Option C is incorrect this is used to get the string value

Option D is incorrect this is used to set the string value

For more information on an example on how to work with Azure Cache for Redis from .Net, one can go to the below link

• https://docs.microsoft.com/en-us/azure/azure-cache-for-redis/cache-dotnet-how-to-use-azure-redis-cache

Correct Answers: B and C​​​​​​​

• Option B is CORRECT because Cache-Aside pattern is suitable for cache which doesn’t provide read-through and write-through operation in native.
• Option C is CORRECT because using the Cache-Aside pattern enables applications to load data on demand. If the resource demand is unpredictable, it is suggested to use the Cache-Aside pattern.
• Option A is incorrect because if the cached data set is static, the data can be cached during startup and apply a policy to prevent the data from expiring.
• Option D is incorrect because developers should avoid introducing dependencies when caching session state information in a web farm.

Reference:

• https://docs.microsoft.com/en-us/azure/architecture/patterns/cache-aside

Answer – A

We need to create an Azure Service Buse Namespace

The full syntax in powershell is given at

https://docs.microsoft.com/en-us/powershell/module/az.servicebus/new-azservicebusnamespace?view=azps-6.3.0

New-AzServiceBusNamespace
   [-ResourceGroupName] <String>
   [-Location] <String>
   [-Name] <String>
   [-SkuName <String>]
   [-SkuCapacity <Int32>]
   [-Tag <Hashtable>]
   [-DefaultProfile <IAzureContextContainer>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]

Hence Option A is correct answer

Answer – A

The Microsoft documentation mentions the correct CLI command to use for ensuring a Cosmos DB account is created in multiple regions

the full syntax is as follows

az cosmosdb create --name
                   --resource-group
                   [--capabilities]
                   [--default-consistency-level {BoundedStaleness, ConsistentPrefix, Eventual, Session, Strong}]
                   [--disable-key-based-metadata-write-access {false, true}]
                   [--enable-analytical-storage {false, true}]
                   [--enable-automatic-failover {false, true}]
                   [--enable-free-tier {false, true}]
                   [--enable-multiple-write-locations {false, true}]
                   [--enable-public-network {false, true}]
                   [--enable-virtual-network {false, true}]
                   [--ip-range-filter]
                   [--key-uri]
                   [--kind {GlobalDocumentDB, MongoDB, Parse}]
                   [--locations]
                   [--max-interval]
                   [--max-staleness-prefix]
                   [--server-version {3.2, 3.6}]
                   [--subscription]
                   [--tags]
                   [--virtual-network-rules]

Since this is clearly mentioned, all other options are incorrect

For more information on how to enable multi-region for CosmosDB, one can go to the below link

• https://docs.microsoft.com/en-us/cli/azure/cosmosdb?view=azure-cli-latest#az-cosmosdb-create
•  

Answer - D

Below are the different settings available for the CDN when it comes to caching of the query string.

Since we need to ensure that query strings are cached, we have to choose the option of ‘Cache every unique URL’

Since this is the ideal approach, all other options are incorrect

For more information on working with query strings for CDN, one can go to the below link

• https://docs.microsoft.com/en-us/azure/cdn/cdn-query-string

Answer – B

An example of this is given in the Microsoft documentation. The first step is to ensure that you create a resource group via the az group create CLI command

Since this is clearly mentioned in the documentation, all other options are incorrect

For more information on using Azure CLI commands to create virtual machines, please visit the below URL

• https://docs.microsoft.com/en-us/azure/virtual-machines/windows/quick-create-cli

Answer – A

An example of this is given in the Microsoft documentation. The next step is to ensure that you create the virtual machine via the vm create CLI command

Since this is clearly mentioned in the documentation, all other options are incorrect

For more information on using Azure CLI commands to create virtual machines, please visit the below URL

• https://docs.microsoft.com/en-us/azure/virtual-machines/windows/quick-create-cli

Answer – A

Here, we are mentioning that the image name should be Windows Server 2016. An example of this is provided in the Microsoft documentation

Since this is clearly mentioned in the documentation, all other options are incorrect

For more information on using Azure CLI commands to create virtual machines, please visit the below URL

• https://docs.microsoft.com/en-us/azure/virtual-machines/windows/quick-create-cli

Answer – A

Yes, you can use the AzCopy tool for this requirement

The Microsoft documentation mentions the following

For more information on the AzCopy tool, please refer to the below link

• https://docs.microsoft.com/en-us/azure/storage/common/storage-use-azcopy-v10

Answer – A

Yes, you can also use the Azure CLI tool for this requirement

The below command can be used for this requirement

For more information on the Azure CLI command, please refer to the below link

• https://docs.microsoft.com/en-us/cli/azure/storage/blob/copy?view=azure-cli-latest

Answer – A

Yes, you can also use the PowerShell tool for this requirement

The below command can be used for this requirement

Start-AzStorageBlobCopy
     [-SrcBlob] <String>
     -SrcContainer <String>
     -DestContainer <String>
     [-DestBlob <String>]
     [-PremiumPageBlobTier <PremiumPageBlobTier>]
     [-StandardBlobTier <String>]
     [-RehydratePriority <RehydratePriority>]
     [-Context <IStorageContext>]
     [-DestContext <IStorageContext>]
     [-Force]
     [-ServerTimeoutPerRequest <Int32>]
     [-ClientTimeoutPerRequest <Int32>]
     [-DefaultProfile <IAzureContextContainer>]
     [-ConcurrentTaskCount <Int32>]
     [-WhatIf]
     [-Confirm]
     [<CommonParameters>]

For more information on the PowerShell command, please refer to the below link

https://docs.microsoft.com/en-us/powershell/module/az.storage/start-azstorageblobcopy?view=azps-4.6.0

Answer – C

You would provide the AcrPush role. The different roles are given in the Microsoft documentation

Options A and B are incorrect because these roles would give more access than what is required.

Option D is incorrect because this does not provide the ability to push images to the registry.

For more information on Azure container registry roles, please visit the following URL

• https://docs.microsoft.com/en-us/azure/container-registry/container-registry-roles

Answer – C

In the BLOB service, you can use the Archive tier to store archive documents that can save on costs. The Microsoft documentation mentions the following

Options A and B are incorrect since these are not cost-efficient options for storing archive-based files.

Option D is incorrect since this is not a valid based tier.

For more information on blob storage tiers, please visit the below URL

• https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers

Answer – B

You need to change the tier of the object. This is also mentioned in the Microsoft documentation

Since this is clearly mentioned in the documentation, all other options are incorrect

For more information on blob storage tiers, please visit the below URL

• https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers

Answer – B

To Add an object to the cache database, we need to use the StringSet Method. An example of this is also given in the Microsoft documentation

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on how to work with Azure Cache for Redis from a .Net program, please visit the below URL

• https://docs.microsoft.com/en-us/azure/azure-cache-for-redis/cache-dotnet-how-to-use-azure-redis-cache

Answer – B

We need to serialize the object before it can be added to the redis cache database.

An example of this is also given in the Microsoft documentation

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on how to work with Azure Cache for Redis from a .Net program, please visit the below URL

• https://docs.microsoft.com/en-us/azure/azure-cache-for-redis/cache-dotnet-how-to-use-azure-redis-cache

Answer – B

We need to use the deserialize method to convert the object retrieved from the cache

An example of this is also given in the Microsoft documentation

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on how to work with Azure Cache for Redis from a .Net program, please visit the below URL

• https://docs.microsoft.com/en-us/azure/azure-cache-for-redis/cache-dotnet-how-to-use-azure-redis-cache

Answer – D

We need to get an object from the cache, so we should use the StringGet method.

An example of this is also given in the Microsoft documentation

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on how to work with Azure Cache for Redis from a .Net program, please visit the below URL

• https://docs.microsoft.com/en-us/azure/azure-cache-for-redis/cache-dotnet-how-to-use-azure-redis-cache

Answer – D

Since you can have an out of order read for a maximum of 5 seconds, this becomes our staleness window.

The Microsoft documentation mentions the following on the Bounded Staleness consistency level.

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on consistency levels, please visit the below URL

• https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels

Answer – B

Since we have to ensure that the data needs to be available even in the case of network outages or any unforeseen failures, we have to enable automatic failover.

The Microsoft documentation mentions the following

Option A is incorrect since there is no mention in the question of requiring the database to be part of a virtual network

Option C is incorrect since the default API chosen for the database is the SQL API

Option D is incorrect since we need to create a Cosmos DB account with the SQL API

For more information on the Cosmos DB create command, please visit the below URL

• https://docs.microsoft.com/en-us/cli/azure/cosmosdb?view=azure-cli-latest#az-cosmosdb-create

Answer – C

Since we need to have additional regions for failover purposes, we need to add multiple locations to the Cosmos DB account.

And keep in mind for failover purpose, the region should be mapped correctly

The paired region for "South Central US" is "North Central US"

The other options are incorrect since they only have one location specified.

For more information on the Cosmos DB create command, please visit the below URL

• https://docs.microsoft.com/en-us/cli/azure/cosmosdb?view=azure-cli-latest#az-cosmosdb-create

Answer – C

Since we need to copy objects from the local folder, we have to mention the entire local folder path.

An example of this is given in the Microsoft documentation

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on using the AzCopy tool, please visit the below URL

• https://docs.microsoft.com/en-us/azure/storage/common/storage-use-azcopy-v10

Answer – A

Here since we need to copy it to the container, we have to mention the full URI of the container

An example of this is given in the Microsoft documentation

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on using the AzCopy tool, please visit the below URL

• https://docs.microsoft.com/en-us/azure/storage/common/storage-use-azcopy-v10

Answer – B

Here the option for copying all the files recursively is --recursive=true

An example of this is given in the Microsoft documentation

Since this is clearly given in the Microsoft documentation, all other options are incorrect

For more information on using the AzCopy tool, please visit the below URL

• https://docs.microsoft.com/en-us/azure/storage/common/storage-use-azcopy-v10

Answer – D

We can use the IN clause to query data from JSON arrays

An example of an implementation of querying the data is given below

Data in the container

After executing the query

Since this is clear from the implementation, all other options are invalid

For more information on SQL queries for array objects, please visit the below URL

• https://docs.microsoft.com/en-us/azure/cosmos-db/sql-query-object-array

Answer – C

Here since we need to filter based on the price, we should use the where clause to query based on the price

An example of an implementation of querying the data is given below

Data in the container

After executing the query

Since this is clear from the implementation, all other options are invalid

For more information on working with the WHERE clause, please visit the below URL

• https://docs.microsoft.com/en-us/azure/cosmos-db/sql-query-where

Answer – A

The right data type is “BlobClient”

The Microsoft documentation gives an example of uploading content to Blob containers

Since this is clear from the Microsoft documentation, all other options are incorrect

For more information on working with the Blob service from .Net, please visit the below URL

• https://docs.microsoft.com/en-us/azure/storage/blobs/storage-quickstart-blobs-dotnet

Correct Answer - A

whizlabcloudBlockBlob is an instance of the class object CloudBlockBlob

The Microsoft documentation gives an example on uploading content to Blob containers

Since this is clear from the Microsoft documentation, all other options are incorrect

For more information on working with the Blob service from .Net, please visit the below URL

https://docs.microsoft.com/en-us/azure/storage/blobs/storage-quickstart-blobs-dotnet-legacy#code-examples

Answer – B

To fulfil this requirement, the App service plan must support the “Always On” feature. And this is not supported with the Shared App Service Plan

Below is the snippet of the features of the various App Service Plans

For more information on the App Service Plans, please visit the below URL

• https://azure.microsoft.com/en-us/pricing/details/app-service/plans/

Answer – A

To fulfill this requirement, the App service plan must support the “Always On” feature. And this is supported with the Basic App Service Plan

"Always On" is available only in the following 4  plans.

Basic, Standard, Premium (v3), Isolated

Below is the snippet of the features of the various App Service Plans

For more information on the App Service Plans, please visit the below URL

• https://azure.microsoft.com/en-us/pricing/details/app-service/plans/
• https://docs.microsoft.com/en-us/azure/azure-resource-manager/management/azure-subscription-service-limits#app-service-limits

Answer – B

To fulfil this requirement, the App service plan must support the “Always On” feature. And this is supported with the Standard App Service Plan. But this is not the most cost-effective App Service plan. Since the Basic App Service Plan already has this feature, you should choose that plan to cut on costs.

Below is the snippet of the features of the various App Service Plans

For more information on the App Service Plans, please visit the below URL

• https://azure.microsoft.com/en-us/pricing/details/app-service/plans/

Answer - B

The requirement is to enable Application Insights Profiler for a web app which captures the data automatically at scale without negatively affecting to end-user and widely used for monitoring purpose. and the given options are

A. CORS configuration

1. Cross-origin resource sharing (CORS) defines a way for client web applications that are loaded in one domain to interact with resources
2. Hence this is not going to help us to enable Application Insights Profiler

B. Always On setting

1.     If a web app sits idle for too long, the system unloads the website, and when traffic returns, the system needs to load the Web App which causes longer response time and higher utilization of resources. By enabling the 'Always On' setting (available for Standard tier websites), keeps the Web App up and running, which translates to higher availability and faster response times across the board.
2.     Since the requirement is to enable 'Application Insights Profiler' for a web App, Enabling 'Always On' is the correct prerequisite.
3.     Hence this is the correct answer. We recommend you find detail at https://docs.microsoft.com/en-us/azure/azure-monitor/app/profiler

C. Enable Identity

1.     identity is part of Azure Active Directory hence not related to Application Insights Profiler

D. Enable Custom domains

1.     Enable Custom Domain is a feature to access any Azure URI by different or customized URI. Hence this is not related to enabling Application Insights Profiler

We have to enable the “Always On” setting.

This is also given in the Microsoft documentation

Since this is clearly given in the documentation, all other options are incorrect

For more information on enabling Application Insights for the Azure Web App, please visit the below URL

• https://docs.microsoft.com/en-us/azure/azure-monitor/app/profiler

Answer - B

We have to use the query string parameter as “comp=lease”

This is also given in the Microsoft documentation

Since this is clearly given in the documentation, all other options are incorrect

For more information on working with Blob lease, please visit the below URL

• https://docs.microsoft.com/en-us/rest/api/storageservices/lease-blob

Answer – E

Since the requirement is that the users don’t mind seeing out of order reads, one can use the Eventual consistency level as the most cost-effective consistency level for the CosmosDB account.

The Microsoft documentation mentions the following

Since this is clearly given in the documentation, all other options are incorrect

For more information on CosmosDB consistency levels, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels

Answer - D

Since here the requirement is that the user must never see out-of-order writes, the most cost-effective option is to use the “Consistent prefix” consistency level.

The Microsoft documentation mentions the following

Since this is clearly given in the documentation, all other options are incorrect

For more information on CosmosDB consistency levels, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels

Answer – A

Since here we need to ensure that the user always sees the latest committed version, we have to choose the “Strong” consistency level.

The Microsoft documentation mentions the following

Since this is clearly given in the documentation, all other options are incorrect

For more information on CosmosDB consistency levels, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels

Answer – B

Here since we have a staleness of data by a set version count, we can use the Bounded staleness consistency level.

The Microsoft documentation mentions the following

Since this is clearly given in the documentation, all other options are incorrect

For more information on CosmosDB consistency levels, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels

Answer – B

Since we need to get the log files for the Azure Web app, we have to use the “log” option in the command.

An example of this is also given in the Microsoft documentation

Since this is clearly given in the documentation, all other options are incorrect

For more information on working with diagnostics logs, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/app-service/troubleshoot-diagnostic-logs

Answer – C

Since we need to stream the log files , the next option to include is the “tail” option

An example of this is also given in the Microsoft documentation

Since this is clearly given in the documentation, all other options are incorrect

For more information on working with diagnostics logs, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/app-service/troubleshoot-diagnostic-logs

Answer – B

Since we have the filter out on the errors, we can use the filter option for the command.

An example of this is also given in the Microsoft documentation

--------------------

az webapp log tail [--ids]
                   [--name]
                   [--provider]
                   [--resource-group]
                   [--slot]
                   [--subscription]
Optional Parameters
--ids
One or more resource IDs (space-delimited). It should be a complete resource ID containing all information of 'Resource Id' arguments. You should provide either --ids or other 'Resource Id' arguments.
--name -n
Name of the web app. If left unspecified, a name will be randomly generated. You can configure the default using az configure --defaults web=<name>.
--provider
By default all live traces configured by az webapp log config will be shown, but you can scope to certain providers/folders, e.g. 'application', 'http', etc. For details, check out https://github.com/projectkudu/kudu/wiki/Diagnostic-Log-Stream.
--resource-group -g
Name of resource group. You can configure the default group using az configure --defaults group=<name>.
--slot -s
The name of the slot. Default to the productions slot if not specified.
--subscription
Name or ID of subscription. You can configure the default subscription using az account set -s NAME_OR_ID.
Global Parameters
--debug
Increase logging verbosity to show all debug logs.
--help -h
Show this help message and exit.
--only-show-errors
Only show errors, suppressing warnings.
--output -o
Output format.
--query
JMESPath query string. See http://jmespath.org/ for more information and examples.
--verbose
Increase logging verbosity. Use --debug for full debug logs.

----------------------------

Since this is clearly given in the documentation, all other options are incorrect

For more information on working with diagnostics logs, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/app-service/troubleshoot-diagnostic-logs

Answer - D

Since here we just need to filter on the event types itself, we can use the “EventTypes” filter.

The Microsoft documentation mentions the following

Since this is clearly given in the documentation, all other options are incorrect

For more information on event filtering in Azure Event Grid, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/event-grid/event-filtering

Answer – A

Since here we need to check on the messages sent to a container, so we have to check the subject of the message

The Microsoft documentation mentions the following

 Since this is clearly given in the documentation, all other options are incorrect

For more information on event filtering in Azure Event Grid, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/event-grid/event-filtering

Answer – B

Here since we need a more advanced scenario and check for the data field values, we have to choose the “Advanced fields and operators” filter option

The Microsoft documentation mentions the following

Since this is clearly given in the documentation, all other options are incorrect

For more information on event filtering in Azure Event Grid, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/event-grid/event-filtering

Answer – A

You can use a policy to convert the data.

The Microsoft documentation mentions the following

For more information on API management policies, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/api-management/api-management-transformation-policies

Answer – B

The Azure Event Hub could be used to log events from the Azure API Management instance

For more information on logging to Azure Event Hubs, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/api-management/api-management-howto-log-event-hubs

Answer – B

RBAC is used to provide Role Based Access Control in Azure API Management

For more information on role-based access control for Azure API management, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/api-management/api-management-role-based-access-control

Answer – C

Since we need to interact with a queue, we have to use the “QueueClient” class.

An example of this is given in the Microsoft documentation

Since this is clearly given in the documentation, all other options are incorrect

For more information on working with queues in .Net, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-dotnet-get-started-with-queues
• https://github.com/jignesht24/AzureExamples/blob/master/AzureServiceBus-Queue/BasicExample/BasicReceiverQueueExample/Program.cs

Answer – C

To send a message asynchronously, we have to use the “SendAsync” method.

An example of this is given in the Microsoft documentation

Since this is clearly given in the documentation, all other options are incorrect

For more information on working with queues in .Net, one can go to the below URL

• https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-dotnet-get-started-with-queues
• https://github.com/jignesht24/AzureExamples/blob/master/AzureServiceBus-Queue/BasicExample/BasicReceiverQueueExample/Program.cs

Correct Answer – B

You have to issue the “az keyvault secret set” command.

An example is also given in the Microsoft documentation

Since this is clearly given in the documentation, all other options are incorrect.

For more information on working with secrets in the key vault, please visit the following URL

• https://docs.microsoft.com/en-us/azure/key-vault/quick-create-cli