Cloud Platform Solutions (D338)
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Free Cloud Platform Solutions (D338) Questions
Which of the following services is specifically mentioned as being fully managed within Google Cloud Platform for processing big data?
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Google Cloud Functions
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Google Cloud Dataproc
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Google Cloud Storage
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Google BigQuery
Explanation
Correct Answer
B. Google Cloud Dataproc
Explanation
Google Cloud Dataproc is a fully managed cloud service designed specifically for processing big data. It provides a fast and scalable platform for running Apache Hadoop and Apache Spark jobs in a fully managed environment, making it easier to process large-scale data without the need to manage the underlying infrastructure.
Why other options are wrong
A. Google Cloud Functions
Google Cloud Functions is a serverless compute service used for executing event-driven code. While it can be used for small-scale data processing tasks, it is not designed for big data processing like Dataproc.
C. Google Cloud Storage
Google Cloud Storage is an object storage service that allows you to store and retrieve data, but it does not specifically focus on processing big data. While it can be used in big data workflows, it is not itself a data processing service.
D. Google BigQuery
Google BigQuery is a fully managed data warehouse designed for analytics and querying large datasets. While it is used for big data analytics, it is not specifically for processing data like Google Cloud Dataproc, which is intended for running big data processing frameworks such as Hadoop and Spark.
Which option allows for ExpressRoute connections to services such as Dynamics 365 and Office 365 in addition to Azure?
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Microsoft peering
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Azure private peering
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Metered billing model
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Unlimited billing model
Explanation
Correct Answer
A. Microsoft peering
Explanation
Microsoft peering enables connectivity from on-premises networks to Azure public services, including services like Dynamics 365 and Office 365. It uses ExpressRoute to connect private on-premises networks to Microsoft’s public cloud services, bypassing the internet for enhanced security and reliability.
Why other options are wrong
B. Azure private peering
Azure private peering is used for connecting to virtual machines and other Azure resources within a private address space, not for services like Dynamics 365 or Office 365. It does not provide connectivity to Microsoft’s public services.
C. Metered billing model
The metered billing model refers to how ExpressRoute is billed based on usage and data transfer, but it does not specifically affect which services can be accessed. It is unrelated to connecting to Dynamics 365 or Office 365 via ExpressRoute.
D. Unlimited billing model
The unlimited billing model for ExpressRoute allows for unmetered data transfer, but it is not related to connecting to Microsoft services like Dynamics 365 or Office 365. The ability to connect to these services is determined by peering type, not billing model.
Which PowerShell cmdlet is used to return a list of custom roles that are available?
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Get-AzRoleDefinition
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Set-AzRoleDefinition
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Get-AzRoleAssignment
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Set-AzRoleAssignment
Explanation
Correct Answer
A. Get-AzRoleDefinition
Explanation
The Get-AzRoleDefinition cmdlet is used to retrieve the definitions of roles, including custom roles, within an Azure subscription. This cmdlet allows administrators to view all available role definitions, including both built-in and custom roles, providing insight into what permissions are available.
Why other options are wrong
B. Set-AzRoleDefinition
The Set-AzRoleDefinition cmdlet is used to create or update custom role definitions, not to list them. It is used for defining new roles or modifying existing ones, not for retrieving a list of available roles.
C. Get-AzRoleAssignment
The Get-AzRoleAssignment cmdlet is used to list the role assignments for a specific user or service principal, not to list available role definitions. This cmdlet provides details about who has been assigned which roles but does not show the available roles themselves.
D. Set-AzRoleAssignment
The Set-AzRoleAssignment cmdlet is used to assign a specific role to a user, group, or service principal. It does not retrieve the list of available roles. It is used to manage role assignments, not to list available roles.
What is the purpose of an autoscaler in a managed group of virtual machines (VMs) on Google Cloud Platform?
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To monitor network traffic
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To automatically adjust the number of VMs based on load
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To provide data storage solutions
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To manage user access permissions
Explanation
Correct Answer
B. To automatically adjust the number of VMs based on load
Explanation
An autoscaler in Google Cloud Platform automatically adjusts the number of virtual machines in a managed instance group based on load. It can increase the number of VMs during times of high demand and scale down when the load decreases, helping to ensure that resources are efficiently allocated while optimizing cost.
Why other options are wrong
A. To monitor network traffic
While network monitoring is important, it is not the purpose of an autoscaler. Autoscalers focus on adjusting compute resources, not network traffic.
C. To provide data storage solutions
Autoscalers do not provide data storage solutions. Their primary role is to manage compute resources, particularly virtual machines.
D. To manage user access permissions
Managing user access permissions is done through IAM (Identity and Access Management) and is not the function of an autoscaler, which is specifically focused on compute resources.
Explain the primary purpose of the Cloud Vision API and how it differs from other Google Cloud services.
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It is used for data storage and management.
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It focuses on image analysis and recognition.
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It provides infrastructure for web hosting.
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It is designed for real-time data processing.
Explanation
Correct Answer
B. It focuses on image analysis and recognition.
Explanation
The Cloud Vision API is a service offered by Google Cloud that enables developers to integrate image recognition and analysis capabilities into their applications. It provides powerful machine learning models that can identify objects, read text, detect labels, and more from images. The primary purpose of this API is to extract meaningful information from images, making it particularly useful for scenarios like image categorization, facial recognition, and OCR (Optical Character Recognition).
Why other options are wrong
A. It is used for data storage and management.
This is incorrect because Cloud Vision API does not focus on data storage but on analyzing images. For data storage, services like Google Cloud Storage or Google Cloud Datastore would be used.
C. It provides infrastructure for web hosting.
This is incorrect because the Cloud Vision API is not related to web hosting. Services like Google Cloud Compute Engine or App Engine provide infrastructure for hosting web applications.
D. It is designed for real-time data processing.
While the Cloud Vision API can process images in near real-time, it is not primarily focused on real-time data processing. Real-time data processing would be better supported by services like Google Cloud Dataflow or Pub/Sub.
Which monitor within the Network Performance Monitor (NPM) is used to test outbound traffic from a network to an open website port?
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Azure Log
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Service Connectivity
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Performance
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ExpressRoute
Explanation
Correct Answer
B. Service Connectivity
Explanation
The Service Connectivity monitor within Network Performance Monitor (NPM) is used to test outbound traffic from a network to an open website port. This monitor helps verify the availability and performance of specific services on the network by measuring connectivity to endpoints such as websites.
Why other options are wrong
A. Azure Log
Azure Log monitor is used for logging and monitoring services but does not specifically test outbound traffic to website ports.
C. Performance
Performance monitor in NPM tracks network performance metrics, such as latency and packet loss, but it is not designed specifically to test connectivity to open website ports.
D. ExpressRoute
ExpressRoute monitor is used for monitoring private connections between on-premises networks and Azure via ExpressRoute, not for testing outbound traffic to website ports.
A company plans to implement Azure Multi-Factor Authentication (MFA). What is the maximum number of factors that can be used during a single sign-in event?
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2
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3
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4
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5
Explanation
Correct Answer
A. 2
Explanation
Azure Multi-Factor Authentication (MFA) supports up to two factors during a single sign-in event. Typically, MFA involves two of the following factors: something you know (e.g., a password), something you have (e.g., a mobile device), or something you are (e.g., a fingerprint). There is no support for more than two factors in a single authentication request.
Why other options are wrong
B. 3
Azure MFA does not support using three factors in a single sign-in event. Only two factors are allowed.
C. 4
Similar to option B, Azure MFA does not allow for four factors during a single authentication process.
D. 5
Azure MFA does not allow for five factors. The maximum number of factors supported is two.
Which type of file is used to perform a bulk import of user accounts using PowerShell?
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JavaScript Object Notation (JSON)
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Extensible markup language (XML)
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Comma-separated value (CSV)
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Structured query language (SQL)
Explanation
Correct Answer
C. Comma-separated value (CSV)
Explanation
To perform a bulk import of user accounts using PowerShell, a Comma-separated value (CSV) file is typically used. CSV files are simple text files where each line represents a record, and fields are separated by commas. PowerShell can easily process these files for bulk import and management of Azure AD users.
Why other options are wrong
A. JavaScript Object Notation (JSON)
JSON is a format used for structured data and is commonly used for API responses or configurations, but CSV is the preferred format for bulk user imports in PowerShell.
B. Extensible markup language (XML)
XML is used for a variety of data formats, but it is less common for user import processes in PowerShell compared to CSV. XML files are typically used in other contexts such as configuration files, not for bulk user import.
D. Structured query language (SQL)
SQL is a language used for querying databases, not for importing user accounts in Azure. SQL files contain queries and do not serve as a format for bulk user import in PowerShell.
Which hardware ratio is used by the general purpose virtual machine (VM) type size?
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Balanced CPU to memory
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High disk throughput
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High memory to CPU
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Balanced storage throughput
Explanation
Correct Answer
A. Balanced CPU to memory
Explanation
The general-purpose virtual machine (VM) type in Azure is designed to offer a balanced ratio of CPU to memory, making it suitable for a wide range of applications. These VMs are versatile and optimized for tasks that require a balance between processing power and memory, such as development environments, small to medium databases, and web servers.
Why other options are wrong
B. High disk throughput
This option refers more to specialized VM types such as those optimized for storage or disk-intensive workloads. General-purpose VMs are not specifically designed for high disk throughput but rather for balancing CPU and memory.
C. High memory to CPU
High memory-to-CPU ratios are found in specialized VM types for memory-intensive applications, such as large in-memory databases or caching. General-purpose VMs offer a more balanced ratio between CPU and memory, not high memory relative to CPU.
D. Balanced storage throughput
Balanced storage throughput is a feature of certain VM types that focus on I/O-intensive tasks, but it is not the defining feature of general-purpose VMs. General-purpose VMs prioritize balance between CPU and memory rather than storage throughput.
What is the minimum number of copies of data created by default for an Azure storage account regardless of the chosen replication option?
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1
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2
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3
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4
Explanation
Correct Answer
C. 3
Explanation
Azure Storage automatically creates three copies of your data within a single region in the case of locally redundant storage (LRS), which is the default replication option. This ensures durability and availability of the data even if hardware failures occur. The three copies are stored synchronously to provide fault tolerance within the data center.
Why other options are wrong
A. 1
A single copy would pose a high risk of data loss due to hardware or software failure. Azure does not store just one copy by default; it always maintains multiple copies to ensure data integrity and durability.
B. 2
Storing only two copies still leaves data more vulnerable compared to having three. Azure uses a minimum of three copies to meet its durability standards and provide high availability.
D. 4
While some replication strategies such as geo-redundant storage (GRS) involve more than three copies across regions, the question asks for the minimum number regardless of replication strategy. The default, locally redundant option only creates three copies, not four.
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