Microsoft AZ-120 Exam Dumps & Practice Test Questions
Question No 1:
You are migrating an on-premises instance of SAP HANA, which runs on SUSE Linux Enterprise Server (SLES), to an Azure virtual machine (VM). The migration is expected to occur soon, and you estimate that, within the next two years, you will replace the current VM with a larger one within the same flexibility group.
Your objective is to minimize deployment costs for the SAP HANA instance over the next three years while maintaining the availability Service Level Agreements (SLAs). You need to recommend solutions that help achieve cost savings without compromising the availability of the SAP HANA instance.
Which two solutions should you recommend to meet these objectives?
Select the two most appropriate options.
A. Azure Spot instance
B. A three-year reservation with instance size flexibility
C. A one-year reservation with capacity priority
D. Azure Hybrid Benefit
E. A one-year reservation with instance size flexibility
Answer:
B. A three-year reservation with instance size flexibility
D. Azure Hybrid Benefit
Explanation:
Azure Spot Instances (A): While Spot instances offer lower pricing, they are subject to eviction by Azure when there is higher demand for capacity. This makes them unsuitable for scenarios where high availability and SLAs are critical, as in the case of SAP HANA.
A Three-Year Reservation with Instance Size Flexibility (B): This option is ideal because it locks in savings over a longer period, while still offering flexibility in instance size within the same flexibility group. This flexibility is important as it allows you to adjust the size of your VM to accommodate future needs (such as replacing it with a larger instance). Additionally, long-term reservations typically offer better pricing than pay-as-you-go options.
A One-Year Reservation with Capacity Priority (C): While this option helps secure capacity in case of demand spikes, it is only a one-year commitment, offering fewer long-term savings than a three-year reservation. It also doesn't provide the same flexibility or cost reduction as a three-year reservation.
Azure Hybrid Benefit (D): This benefit allows you to apply existing on-premises licenses for software like Windows Server or SQL Server to reduce the cost of Azure VMs. This can lead to significant savings in licensing costs without impacting the availability or performance of SAP HANA.
A One-Year Reservation with Instance Size Flexibility (E): A one-year commitment might offer some savings but not to the extent of a three-year reservation. While the flexibility to change instance size is useful, this option doesn't provide the same long-term cost reduction as a three-year commitment.
In conclusion, B and D are the most suitable options for minimizing costs while maintaining high availability and flexibility in your SAP HANA migration to Azure.
Question No 2:
You have an on-premises SAP NetWeaver application server and SAP HANA database deployment. You are planning to migrate this deployment to Microsoft Azure. New Azure virtual machines have been provisioned to host the application server and the SAP HANA database roles.
You need to initiate the SAP Database Migration Option (DMO) with System Move to complete the migration process.
Where should you start the Software Update Manager (SUM) for the SAP DMO with System Move?
A. On the Azure virtual machine that will host the SAP NetWeaver application server
B. On the Azure virtual machine that will host the SAP HANA database
C. On the on-premises database server
D. On the on-premises application server
Correct Answer:
A. On the Azure virtual machine that will host the SAP NetWeaver application server
Explanation:
SAP Database Migration Option (DMO) with System Move is a process used to migrate both the SAP NetWeaver application server and the SAP HANA database to a new environment (such as Azure) while upgrading the system at the same time.
The Software Update Manager (SUM) is used to initiate and manage this migration process. It should be started on the Azure virtual machine that will host the SAP NetWeaver application server (Option A). This is because the SAP NetWeaver application server handles key components of the system migration, including the initiation and control of the database migration.
System Move and DMO typically require the application server to handle the migration process. After initiating the migration on the application server, it will manage the data and system upgrades, and the database will be migrated afterward.
The other options (B, C, and D) are incorrect because:
Option B would start the SUM on the SAP HANA database server, which is not where the migration process begins.
Option C would start SUM on the on-premises database server, which is not where the migration is initiated in a cloud environment.
Option D would start SUM on the on-premises application server, but since the migration is to be done to Azure, it's more effective to begin on the Azure virtual machine that will host the SAP NetWeaver server.
Thus, starting SUM on the Azure virtual machine that will host the SAP NetWeaver application server (Option A) is the correct step.
Question No 3:
You are tasked with migrating an on-premises SAP NetWeaver deployment to a SQL Server instance hosted on an Azure virtual machine (VM). The current deployment is using a DB2 database that stores 5 TB of data. During this migration, optimizing the performance of transaction log write operations is a critical requirement. Furthermore, you need to ensure that the solution does not exceed the I/O quota of the virtual machine.
Which approach should you take to ensure optimal performance of transaction log write operations without affecting the VM’s I/O quota?
A. Place the transaction logs on the temporary disk.
B. Place the transaction logs on a striped volume of Premium SSD disks.
C. Place the transaction logs on an Ultra disk.
D. Enable the write cache for the disk that hosts the transaction logs.
Correct Answer: B. Place the transaction logs on a striped volume of Premium SSD disks.
Explanation:
When migrating a high-performance workload like SAP NetWeaver to Azure, ensuring the high performance of transaction log operations is vital. Transaction logs in SQL Server need high throughput and low latency for optimal performance, especially in large deployments.
Option A (Temporary disk) is unsuitable because temporary disks are non-persistent and unreliable for transactional data. These disks cannot guarantee durability, making them inappropriate for storing transaction logs.
Option B (Striped volume of Premium SSDs) offers the best performance for high-write operations. Premium SSDs provide low latency, high throughput, and reliability, making them the best option for transaction logs in SQL Server. By stripping the logs across multiple SSDs, you can further enhance performance and distribute the I/O load, minimizing the risk of hitting the I/O quota of the VM.
Option C (Ultra disk) is likely overkill for transaction logs, as Premium SSDs are typically sufficient for this purpose. Ultra disks are designed for extreme I/O needs (e.g., high-performance computing) but could be unnecessarily expensive for this scenario.
Option D (Write cache) introduces risks for data integrity, as caching mechanisms could result in data loss if not flushed correctly. Since transaction logs are crucial for maintaining data consistency, enabling write caching could be dangerous.
Thus, Option B is the optimal choice, offering a balance of performance, reliability, and cost.
Question No 4:
You are managing an on-premises SAP NetWeaver landscape, which is currently utilizing an IBM DB2 database. Due to organizational goals, you need to migrate the database from its current on-premises environment to a Microsoft SQL Server instance hosted on an Azure virtual machine. The goal is to ensure that the migration process is as smooth, efficient, and error-free as possible.
Which of the following tools should you use to perform the migration from IBM DB2 to Microsoft SQL Server on Azure, and why?
A. Data Migration Assistant
B. SQL Server Migration Assistant (SSMA)
C. Azure Migrate
D. Azure Database Migration Service
Correct Answer: D. Azure Database Migration Service.
Explanation:
To perform a migration from an IBM DB2 database to SQL Server on Azure, choosing the right tool is crucial for ensuring a smooth and successful migration.
Option A (Data Migration Assistant) is primarily used for assessing database compatibility with SQL Server. It helps identify potential issues during migration but does not perform the actual migration. It is more of a preparatory tool, not a migration tool for DB2 to SQL Server.
Option B (SQL Server Migration Assistant) is a tool used for migrating non-SQL Server databases (such as DB2) to SQL Server. While SSMA does support DB2 to SQL Server migrations, it is more suited to on-premises migrations and does not fully support cloud-based migration workflows, especially for Azure environments.
Option C (Azure Migrate) is designed for assessing and planning the migration of on-premises infrastructure and applications to Azure. It is not tailored specifically for database migrations.
Option D (Azure Database Migration Service) is the most appropriate tool for the job. It is specifically designed for migrating databases from various sources (including IBM DB2) to SQL Server on Azure. This service facilitates both online and offline migrations, supports minimal downtime, and automates many aspects of the migration process. It ensures that data integrity is maintained, potential compatibility issues are addressed, and the migration is as seamless as possible.
Therefore, Option D is the best choice for migrating an IBM DB2 database to SQL Server on Azure, ensuring the migration process is efficient and reliable.
Question No 5:
You are managing an SAP landscape hosted on VMware and are planning to migrate the environment to Microsoft Azure using Azure Migrate. In preparation for the migration, you need to configure firewall rules that will allow communication between your on-premises VMware environment and the Azure Migrate appliance management app.You need to configure firewall rules to allow access to the Azure Migrate appliance management app.
Which port should you allow access to for proper communication during the SAP migration process?
A. Port 3900: This port is generally used by other applications and is not related to Azure Migrate appliances.
B. Port 44368: This port is not required for Azure Migrate communication.
C. Port 44400: This is the correct port to enable communication between the Azure Migrate appliance and Azure's management service during the migration.
D. Port 50014: This port is unrelated to Azure Migrate and is not needed for the migration process.
Correct Answer: C. 44400
Explanation:
When migrating workloads to Azure using Azure Migrate, certain ports need to be open to facilitate communication between the on-premises environment and Azure services. The Azure Migrate appliance, which is responsible for the migration process, requires specific firewall rules to ensure it can communicate with Azure's management services.
Port 44400 is the designated port for communication between the Azure Migrate appliance and the Azure Migrate service. This port allows the appliance to manage, monitor, and execute the migration process, including the transfer of necessary data and orchestration of operations.
Opening port 44400 will ensure proper communication between your on-premises VMware environment and the Azure Migrate appliance, allowing for a seamless migration experience.
Question No 6:
You have an on-premises SAP NetWeaver deployment that currently operates on a Windows Server 2016 machine and uses Microsoft SQL Server 2016 as the database platform. You are planning to migrate this deployment to an Azure virtual machine, which will run Windows Server 2016 and Microsoft SQL Server 2019.
Given this scenario, what is the most appropriate migration method to use for this transition, considering the differences between the on-premises and Azure environments, as well as the changes in the database version from SQL Server 2016 to SQL Server 2019?
A. Lift-and-shift
B. Azure Migrate
C. Classical SAP Database Migration Option (DMO)
D. Heterogeneous SAP classical migration
Correct Answer: B. Azure Migrate
Explanation:
When migrating an SAP NetWeaver deployment to an Azure virtual machine, especially when there is a database upgrade involved (from SQL Server 2016 to SQL Server 2019), it is crucial to use the right migration method to ensure both the infrastructure and database transition happen smoothly.
Here’s an analysis of each option:
A. Lift-and-shift: This method involves moving the system as-is without changing the architecture. While this approach could work for simple migrations, it may not be sufficient when the database is being upgraded from SQL Server 2016 to SQL Server 2019. A lift-and-shift does not address the complexities of an upgraded database version.
B. Azure Migrate: Azure Migrate provides a comprehensive approach for migrating workloads to Azure. It helps assess both the operating system and database compatibility, facilitates testing, and ensures that the SAP deployment is optimized for Azure. Azure Migrate also handles the migration of the virtual machine, making it the most suitable option for this scenario, where both infrastructure and database changes are involved.
C. Classical SAP Database Migration Option (DMO): DMO is specifically for migrating SAP systems to new versions of the database, but it is used when you are upgrading the database as part of a larger SAP migration. Since the database upgrade (from SQL Server 2016 to 2019) is happening as part of a migration between environments rather than a complete system upgrade, this option is not the best fit.
D. Heterogeneous SAP classical migration: This migration method is typically used when migrating SAP systems between different database platforms (e.g., from SQL Server to Oracle). In this case, the database remains the same (SQL Server), so this option is not relevant.
Therefore, Azure Migrate is the optimal choice, as it allows you to migrate both the virtual machine and the SQL Server database, while also ensuring that compatibility checks and optimizations are performed for the move to the Azure cloud.
Question No 7:
You are managing an Azure subscription that includes two SAP HANA on Azure (Large Instances) deployments, HLI1 and HLI2. HLI1 is located in the East US Azure region, while HLI2 is deployed in the West US 2 Azure region.
To ensure minimal network latency for communication between HLI1 and HLI2 across regions, what should you implement?
A. A NAT gateway
B. IP routing tables
C. ExpressRoute FastPath
D. ExpressRoute Global Reach
Correct Answer: D
Explanation:
The goal is to minimize network latency between two SAP HANA instances (HLI1 and HLI2) that are located in different Azure regions—East US and West US 2. To optimize communication across regions and ensure minimal latency, the most suitable solution is ExpressRoute Global Reach.
Why ExpressRoute Global Reach is the correct answer:
ExpressRoute Global Reach enables private, high-performance, low-latency connectivity between virtual networks (VNets) located in different Azure regions. It uses Azure’s private backbone network instead of public internet routes, ensuring that data travels faster and more securely across regions. This service effectively reduces latency by bypassing the public internet, making it the optimal choice for connecting virtual networks across Azure regions.
Why the other options are not suitable:
A. NAT Gateway: A NAT (Network Address Translation) gateway is used for managing outbound internet traffic from a private network. It does not address the issue of inter-region latency and is more relevant for handling internet-bound traffic, not cross-region communication.
B. IP Routing Tables: IP routing tables are used for managing traffic flows within a single virtual network. While routing tables can direct traffic within a region, they do not have an impact on minimizing latency between different Azure regions.
C. ExpressRoute FastPath: ExpressRoute FastPath improves performance for certain types of traffic by bypassing the network stack for connections within a single region. However, it does not optimize or affect cross-region connectivity, which is the key requirement for this scenario.
In conclusion, ExpressRoute Global Reach is the best solution for ensuring minimal network latency for communication between HLI1 and HLI2, as it establishes a private, high-performance connection between different Azure regions.
Question No 8:
Which of the following is the most important step when deploying an Azure Stack Hub environment in a data center?
A. Setting up Azure Active Directory synchronization
B. Installing the Azure Stack Hub hardware
C. Configuring storage accounts for backup
D. Deploying virtual machines for application workloads
Correct Answer: B. Installing the Azure Stack Hub hardware
Explanation:
When deploying Azure Stack Hub, one of the most important and first steps is to install the Azure Stack Hub hardware. Azure Stack Hub is a hybrid cloud platform, and it must be deployed on certified hardware, which includes specific requirements for compute, storage, and networking components. Before anything else can be configured, the hardware must be physically installed and validated.
Once the hardware is in place, additional configuration tasks such as networking setup, storage configuration, and Active Directory synchronization can be done. The hardware installation is critical because Azure Stack Hub operates as a platform integrated with both on-premises and Azure cloud environments. Only after the hardware is correctly installed and validated can you proceed to configure networking, subscriptions, and security.
While steps like setting up Active Directory synchronization or configuring storage accounts are essential for managing user identities and securing backup data, they cannot be performed until the hardware setup is complete. Deploying virtual machines for workloads is also a later step that comes after the system is properly configured and operational.
Question No 9:
Which of the following describes the role of Azure Stack Hub in a hybrid cloud environment?
A. It provides an on-premises environment that can operate independently of Azure.
B. It offers seamless integration and extension of Azure services to on-premises environments.
C. It is used exclusively for running containers on-premises.
D. It is a separate environment that does not interact with the public cloud.
Correct Answer:
B. It offers seamless integration and extension of Azure services to on-premises environments.
Explanation:
Azure Stack Hub is designed to extend Azure services to on-premises environments, making it an integral part of a hybrid cloud strategy. It allows organizations to run Azure services and workloads in their own data centers, ensuring consistency and integration between on-premises infrastructure and the Azure public cloud.
Azure Stack Hub enables users to leverage the same tools, APIs, and services used in Azure, but in a local, on-premises environment. This is particularly useful for organizations that require certain workloads to remain on-premises due to data sovereignty, regulatory requirements, or latency concerns, while still benefiting from the scalability and management features offered by the Azure cloud.
Azure Stack Hub does not operate independently of Azure, nor does it exclusively run containers or other isolated workloads. Instead, it facilitates hybrid cloud scenarios, where some resources are in Azure, and others are in the on-premises Azure Stack Hub environment. This allows seamless management, deployment, and monitoring across both environments using the same Azure portal.
Question No 10:
Which of the following is a primary consideration when planning for network connectivity between Azure Stack Hub and Azure?
A. The speed and capacity of the local network to support hybrid services.
B. The use of a public internet connection for all data traffic.
C. Ensuring there is no need for redundancy in the network design.
D. Only internal IP addresses should be used for all connections.
Correct Answer: A. The speed and capacity of the local network to support hybrid services.
Explanation:
When planning for network connectivity between Azure Stack Hub and Azure, it is crucial to consider the speed and capacity of the local network. Since Azure Stack Hub is designed to support hybrid workloads, network connectivity plays a central role in ensuring that resources and services can operate efficiently between the on-premises environment and the public cloud.
Azure Stack Hub relies on high-performance network connections to facilitate the synchronization of data, deployment of applications, and the execution of hybrid workloads. For instance, tasks like backup synchronization, disaster recovery, and load balancing can involve large amounts of data transfer, so a network that supports sufficient bandwidth and low latency is essential.
While using a public internet connection for all data traffic or solely relying on internal IP addresses might seem simple, they are not sufficient for an optimal hybrid cloud environment. A private, high-speed connection is generally recommended for secure and efficient communication between Azure Stack Hub and Azure to avoid bottlenecks and ensure fast, reliable data flow. Additionally, planning for redundancy in network design is crucial for ensuring resilience and high availability, particularly in the event of network failure.
Thus, a thorough understanding of the local network’s capacity and speed is critical to ensure the successful implementation of a hybrid solution between Azure and Azure Stack Hub.
The Microsoft AZ-120 exam focuses on the deployment, integration, and management of Azure Stack Hub environments in a hybrid cloud context. Understanding hardware installation, the role of Azure Stack Hub in hybrid cloud setups, and network connectivity is essential for the exam. Additionally, candidates should be familiar with the architecture, security requirements, and operational best practices for managing Azure Stack Hub.
Hardware setup is crucial for starting any configuration in Azure Stack Hub.
Hybrid integration allows businesses to extend Azure services into on-premises environments, leveraging a unified platform for cloud management.
Network capacity and speed are vital for maintaining seamless connectivity between Azure Stack Hub and Azure, ensuring smooth operation of hybrid services.
By mastering these concepts, you will be well-equipped to succeed in the Microsoft AZ-120 exam and implement hybrid cloud solutions in real-world environments.
