ICC1 - Ada AZ-900 - Azure Fundamentals quiz 4

Which tool automatically keeps files between an on-premises Windows server and an Azure cloud environment updated?

• Azure File Sync

• Azure Storage Explorer

• AzCopy

Answer explanation

Azure File Sync maintains a bidirectional synchronization of files between your on-premises and cloud Windows servers.

Which storage redundancy option provides the highest degree of durability, with 16 nines of durability?

• Locally redundant storage

• Zone-redundant storage

• Geo-zone-redundant-storage

Answer explanation

Geo-redundant storage (GRS) and geo-zone-redundant storage (GZRS) both provide 16 nines of durability.

Which Azure Storage service supports big data analytics, as well as handling text and binary data types?

• Azure Blobs

• Azure Files

• Azure Disks

Answer explanation

Azure Blobs is a massively scalable object store for text and binary data. Azure Blobs also includes support for big data analytics through Data Lake Storage Gen2.

What is the PRIMARY purpose of Azure storage accounts?

• To manage virtual machines in Azure

• To host web applications

• To securely store and access a variety of data objects

• To deploy cloud functions

Answer explanation

Azure storage accounts are the fundamental service for storing and accessing all your data in the cloud. They offer various storage options like blobs, files, disks, queues, and tables, catering to different data needs.

If you have two nines of durability (99%), how much time might that data not be accessible per year?

• 36.53 days

• 3.65 days

• 52.6 minutes

Answer explanation

Two nines of durability (99%) translates to 1% downtime.

Assuming a year has 365 days (ignoring leap years for simplicity), this would mean the data might be inaccessible for approximately:

• Downtime percentage: 1%

• Days in a year: 365 days

Downtime hours = Downtime percentage Days in a year Downtime hours = 1/100 365 days Downtime hours ≈ 3.65 days per year

You are a healthcare provider looking to store a large archive of medical images from patients. These images are rarely accessed, but need to be readily available for retrieval upon patient request, which could happen years later. However, due to budget constraints, you want to choose the most cost-effective storage option. What Azure Storage access tier would be the most suitable for this scenario?

• Hot

• Cool

• Cold

• Archive

Answer explanation

Hot Access tier is designed for frequently accessed data and would be too expensive for infrequently accessed medical images.

Cool Access tier is a good option for data that might be needed occasionally within a few months, but for medical images that could be needed years later, it might not be the most cost-effective.

Cold Access tier is a viable option as it offers lower storage costs compared to Cool tier. Data retrieval times from Cold storage are typically longer (hours) compared to Cool tier, but acceptable for this scenario where urgency is not a major concern.

Archive Access tier is the most cost-effective option for data that is rarely accessed and retrieval times of several hours are acceptable. Medical images in this scenario fit this profile perfectly. Retrieving data from Archive tier takes longer (hours) compared to Cold tier, but the significant cost savings make it the most suitable choice.

While both Cold and Archive tiers could be considered, Archive tier offers the lowest storage costs, making it the most cost-effective option for this specific scenario.

Your company processes a high volume of real-time financial transactions that need to be accessed and updated constantly. Performance and low latency are critical for ensuring smooth operation. What Azure Storage access tier would be the most appropriate for storing this data?

• Hot Access Tier

• Cool Access Tier

• Cold Access Tier

• Cold Access Tier

Answer explanation

• Hot Access tier is specifically designed for frequently accessed data with low latency requirements. This makes it the ideal choice for storing real-time financial transactions that need constant access and updates. Hot tier prioritizes performance and immediate availability, ensuring smooth processing of financial transactions.

What is the primary function of Azure Migrate?

• To manage and monitor virtual machines deployed in Azure

• To migrate on-premises workloads (VMs, databases, applications) to Azure

• To provide serverless compute functionalities in Azure

• To offer web application hosting services on Azure

Answer explanation

• Azure Migrate is a service specifically designed to assist organizations in migrating their on-premises workloads, including virtual machines, databases, and applications, to the Microsoft Azure cloud platform. It offers a comprehensive suite of tools for assessment, planning, and execution of the migration process.

Your company owns a vast library of archived video files totaling several terabytes. You plan to migrate this library to Azure for cloud-based storage, editing, and sharing. However, your internet upload bandwidth is limited, making uploading such a large dataset through the internet infeasible. What is the MOST suitable solution for securely transferring this video library to Azure?

• Azure Storage Account upload directly over the internet

• Azure VMs for manual file transfer

• Azure Data Box

• Azure ExpressRoute

Answer explanation

Azure Data Box offers a perfect solution for this scenario. It's a physical storage device shipped to your location. You securely copy your video files to the Data Box, and Microsoft ships it back to their datacenter. The data is then uploaded to your Azure storage account. This bypasses internet limitations and provides a secure offline transfer method.

What is Azure Data Lake Storage Gen2 designed for?

• Securely storing and managing personal documents and files.

• Hosting and running web applications in the cloud.

• Providing a scalable and secure repository for storing and processing big data of any format.

• Offering a serverless environment for executing code snippets.

Answer explanation

Azure Data Lake Storage Gen2 (ADLS Gen2) is a cloud-based storage solution specifically designed to handle big data workloads. It provides a highly scalable and secure repository for storing large datasets in various formats, including structured, semi-structured, and unstructured data. This allows organizations to efficiently store and analyze vast amounts of data for business insights.