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AZ-301 PDF DEMO:
QUESTION NO: 1
You plan to move a web application named App1 from an on-premises data center to Azure.
App1 depends on a custom framework that is installed on the host server.
You need to recommend a solution to host App1 in Azure. The solution must meet the following requirements:
* App1 must be available to users if an Azure data center becomes unavailable.
* Costs must be minimized.
What should you include in the recommendation?
A. In two Azure regions, deploy a Traffic Manager profile and a web app.
B. In two Azure regions, deploy a load balancer and a virtual machine scale set.
C. In two Azure regions, deploy a load balancer and a web app.
D. Deploy a load balancer and a virtual machine scale set across two availability zones.
Answer: D
Explanation
"Azure App Service does not allow the registration of COM components on the platform. If your app makes
use of any COM components, these would need to be rewritten in managed code and deployed with the site or
application."
https://docs.microsoft.com/en-us/dotnet/azure/dotnet-howto-migrate-app-service?view=azure- dotnet
QUESTION NO: 2
You have standard Load balancer configured to support three virtual machines on the same subnet.
You need to recommend a solution to notify administrators when the load balancer fails.
Which metrics should you recommend using to test the load balancer? To answer, drag the appropriate metrics
to the correct conditions. Each metric may be used once, more than once, or not at all. You may need to drag
the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Answer:
Explanation
Backend instance health: Health Probe Status
Health Probe Status (DIP Availability): Standard Load Balancer uses a distributed health-probing service that
monitors your application endpoint's health according to your configuration settings. This metric provides an
aggregate or per-endpoint filtered view of each instance endpoint in the load balancer pool. You can see how
Load Balancer views the health of your application, as indicated by your health probe configuration.
Outbound port exhaustion: SNAT connection Count
SNAT connections: Standard Load Balancer reports the number of outbound flows that are masqueraded to the
Public IP address front end. Source network address translation (SNAT) ports are an exhaustible resource.
This metric can give an indication of how heavily your application is relying on SNAT for outbound originated flows. Counters for successful and failed outbound SNAT flows are reported and can be used to
troubleshoot and understand the health of your outbound flows.
Reference:
https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-standard-diagnostics
QUESTION NO: 3
Note: This question is part of series of questions that present the same scenario. Each question in the
series contains a unique solution that might meet the stated goals. Some question sets might have more
than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
Your company has deployed several virtual machines (VMs) on-premises and to Azure. Azure
ExpressRoute
has been deployed and configured for on-premises to Azure connectivity.
Several VMs are exhibiting network connectivity issues.
You need to analyze the network traffic to determine whether packets are being allowed or denied to the VMs.
Solution: Use Azure Network Watcher to run IP flow verify to analyze the network traffic.
Does the solution meet the goal?
A. Yes
B. No
Answer: A
Explanation
The Network Watcher Network performance monitor is a cloud-based hybrid network monitoring solution that
helps you monitor network performance between various points in your network infrastructure. It also helps
you monitor network connectivity to service and application endpoints and monitor the performance of Azure
ExpressRoute.
Note:
IP flow verify checks if a packet is allowed or denied to or from a virtual machine. The information consists of
direction, protocol, local IP, remote IP, local port, and remote port. If the packet is denied by a security group,
the name of the rule that denied the packet is returned. While any source or destination IP can be chosen, IP
flow verify helps administrators quickly diagnose connectivity issues from or to the internet and from or to the
on-premises environment.
IP flow verify looks at the rules for all Network Security Groups (NSGs) applied to the network interface, such
as a subnet or virtual machine NIC. Traffic flow is then verified based on the configured settings to or from
that network interface. IP flow verify is useful in confirming if a rule in a Network Security Group is blocking
ingress or egress traffic to or from a virtual machine.
References:
https://docs.microsoft.com/en-us/azure/network-watcher/network-watcher-monitoring-overview
https://docs.microsoft.com/en-us/azure/network-watcher/network-watcher-ip-flow-verify-overview
QUESTION NO: 4
You are designing an Azure solution for a company that wants to move a .NET Core web application an
on-premises data center to Azure. The web application relies on a Microsoft SQL Server 2016 database on
Windows Server 2016. The database server will not move to Azure.
A separate networking team is responsible for configuring network permissions.
The company uses Azure ExpressRoute and has an ExpressRoute gateway connected to an Azure virtual
network named VNET1.
You need to recommend a solution for deploying the web application.
Solution: Deploy the web application to a web app hosted in an Isolated App Service plan on VNET1.
Does this meet the goal?
A. Yes
B. No
Answer: B
QUESTION NO: 5
You need to recommend a solution for implementing the back-end tier of the payment processing system in
Azure.
What should you include in the recommendation?
A. a SQL Server database on an Azure virtual machine
B. an Azure SQL Database elastic pool
C. an Azure SQL Database managed instance
D. an Azure SQL Database single database
Answer: D
===================================================
Topic1, Case Study B
Overview
Contoso,Ltd is a US-base finance service company that has a main office New York and an office in
San
Francisco.
Payment Processing Query System
Contoso hosts a business critical payment processing system in its New York data center. The system has three
tiers a front-end web app a middle -tier API and a back end data store implemented as a Microsoft
SQL Server
2014 database All servers run Windows Server 2012 R2.
The front -end and middle net components are hosted by using Microsoft Internet Inform-non
Services (IK)
The application rode is written in C# and middle- tier API uses the Entity framework to communicate the SQL
Server database. Maintenance of the database e performed by using SQL Server Ago-
The database is currently J IB and is not expected to grow beyond 3 TB.
The payment processing system has the following compliance related requirement
* Encrypt data in transit and at test. Only the front-end and middle-tier components must be able to access the
encryption keys that protect the date store.
* Keep backups of the two separate physical locations that are at last 200 miles apart and can be restored for op
to seven years.
* Support blocking inbound and outbound traffic based on the source IP address, the description IP address,
and the port number
* Collect Windows security logs from all the middle-tier servers and retain the log for a period of seven years,
* Inspect inbound and outbound traffic from the from-end tier by using highly available network appliances.
* Only allow all access to all the tiers from the internal network of Contoso.
Tape backups ate configured by using an on-premises deployment or Microsoft System Center Data protection
Manager (DPMX and then shaped ofsite for long term storage
Historical Transaction Query System
Contoso recently migrate a business-Critical workload to Azure. The workload contains a NET web server for
querying the historical transaction data residing in azure Table Storage. The NET service is accessible from a
client app that was developed in-house and on the client computer in the New Your office. The data in the
storage is 50 GB and is not except to increase.
Information Security Requirement
The IT security team wants to ensure that identity management n performed by using Active
Directory.
Password hashes must be stored on premises only.
Access to all business-critical systems must rely on Active Directory credentials. Any suspicious authentication attempts must trigger multi-factor authentication prompt automatically Legitimate users must be
able to authenticate successfully by using multi-factor authentication.
Planned Changes
Contoso plans to implement the following changes:
* Migrate the payment processing system to Azure.
* Migrate the historical transaction data to Azure Cosmos DB to address the performance issues.
Migration Requirements
Contoso identifies the following general migration requirements:
Infrastructure services must remain available if a region or a data center fails. Failover must occur without any
administrative intervention
* Whenever possible. Azure managed serves must be used to management overhead
* Whenever possible, costs must be minimized.
Contoso identifies the following requirements for the payment processing system:
* If a data center fails, ensure that the payment processing system remains available without any administrative
intervention. The middle-tier and the web front end must continue to operate without any additional configurations-
* If that the number of compute nodes of the from -end and the middle tiers of the payment processing system
can increase or decrease automatically based on CPU utilization.
* Ensure that each tier of the payment processing system is subject to a Service level Agreement
(SLA) of
9959 percent availability
* Minimize the effort required to modify the middle tier API and the back-end tier of the payment processing
system.
* Generate alerts when unauthorized login attempts occur on the middle-tier virtual machines.
* Insure that the payment processing system preserves its current compliance status.
* Host the middle tier of the payment processing system on a virtual machine.
Contoso identifies the following requirements for the historical transaction query system:
* Minimize the use of on-premises infrastructure service.
* Minimize the effort required to modify the .NET web service querying Azure Cosmos DB.
* If a region fails, ensure that the historical transaction query system remains available without any administrative intervention.
Current Issue
The Contoso IT team discovers poor performance of the historical transaction query as the queries frequently
cause table scans.
Information Security Requirements
The IT security team wants to ensure that identity management is performed by using Active
Directory.
Password hashes must be stored on-premises only.
Access to all business-critical systems must rely on Active Directory credentials. Any suspicious authentication attempts must trigger a multi-factor authentication prompt automatically. legitimate users must
be able to authenticate successfully by using multi-factor authentication.
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Updated: May 28, 2022