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質問 # 136
Shannon Elizabeth works as a cloud security engineer in VicPro Soft Pvt. Ltd. Microsoft Azure provides all cloud-based services to her organization. Shannon created a resource group (ProdRes), and then created a virtual machine (myprodvm) in the resource group. On myprodvm virtual machine, she enabled JIT from the Azure Security Center dashboard. What will happen when Shannon enables JIT VM access?
正解：B
解説：
When Shannon Elizabeth enables Just-In-Time (JIT) VM access on the myprodvm virtual machine from the Azure Security Center dashboard, the following happens:
Inbound Traffic Control: JIT VM access locks down the inbound traffic to the virtual machine.
Azure Firewall Rule: It creates a rule in the Azure firewall to control this inbound traffic, allowing access only when required and for a specified duration.
Enhanced Security: This approach minimizes exposure to potential attacks by reducing the time that the VM ports are open.
Reference:
Azure Security Center Documentation: Just-In-Time VM Access
Microsoft Learn: Configure Just-In-Time VM Access in Azure
質問 # 137
Chris Noth has been working as a senior cloud security engineer in CloudAppSec Private Ltd. His organization has selected a DRaaS (Disaster Recovery as a Service) company to provide a disaster recovery site that is fault tolerant and consists of fully redundant equipment with network connectivity and real-time data synchronization. Thus, if a disaster strikes Chris' organization, failover can be performed to the disaster recovery site with minimal downtime and zero data loss. Based on the given information, which disaster recovery site is provided by the DRaaS company to Chris' organization?
正解：D
解説：
Disaster Recovery as a Service (DRaaS): DRaaS is a third-party service that provides organizations with a secondary site infrastructure, which employs cloud computing for application and data recovery from synchronous or asynchronous replication1.
Fault Tolerance and Redundancy: A fault-tolerant disaster recovery site with fully redundant equipment ensures that all critical systems and components have backups ready to take over in case of failure1.
Real-Time Data Synchronization: This feature ensures that data is continuously mirrored to the disaster recovery site, allowing for real-time recovery and zero data loss during failover1.
Hot Site: A hot site is a fully operational offsite data center equipped with hardware and software, network connectivity, and real-time data synchronization. It is ready to assume operation at a moment's notice, which aligns with the description provided1.
Minimal Downtime: The use of a hot site allows for minimal downtime during a disaster, as the site is already running and can take over immediately without the need to set up or configure equipment1.
Reference:
Flexential's explanation of Disaster Recovery as a Service (DRaaS)1.
質問 # 138
William O'Neil works as a cloud security engineer in an IT company located in Tampa, Florida. To create an access key with normal user accounts, he would like to test whether it is possible to escalate privileges to obtain AWS administrator account access. Which of the following commands should William try to create a new user access key ID and secret key for a user?
正解：C
解説：
To create a new user access key ID and secret key for a specified user in AWS, the correct command syntax is aws iam create-access-key --user-name target_user. This command will generate the access key for the specified user, assuming the user executing the command has the necessary permissions to create access keys for that user.
質問 # 139
Stephen Cyrus has been working as a cloud security engineer in an MNC over the past 7 years. The database administration team requested Stephen to configure a server instance that can enhance the performance of their new database server running on Compute Engine. The database is built on MySQL running on Debian Linux and it is used to import and normalize the company's performance statistics. They have an n2-standard-8 virtual machine with 80 GB of SSD zonal persistent disk, which cannot be restarted until the next maintenance event. Which of the following can help Stephen to enhance the performance of this VM quickly and in a cost-effective manner?
正解：D
解説：
To enhance the performance of a MySQL database running on Compute Engine quickly and in a cost-effective manner, Stephen can dynamically resize the SSD persistent disk to 500 GB. Here's why this option is effective:
* Increased IOPS and Throughput: SSDs provide higher input/output operations per second (IOPS) and throughput compared to traditional hard drives. By increasing the size of the SSD persistent disk, Stephen can benefit from increased IOPS and throughput, which are crucial for database performance, especially when dealing with large volumes of data imports and normalization processes1.
* No Downtime Required: Dynamically resizing the SSD persistent disk can be done without stopping the virtual machine, which aligns with the requirement that the VM cannot be restarted until the next maintenance event1.
* Cost-Effectiveness: Resizing the disk is a cost-effective solution because it does not require provisioning additional compute resources or migrating to a different database service, which could incur higher costs and complexity1.
* Immediate Performance Boost: The performance improvement is immediate after the disk resize, as the database can utilize the additional space for better disk I/O performance, which is often a bottleneck in database operations1.
References:
* LogRocket Blog: 5 ways to rapidly improve MySQL database performance1.
* Google Cloud Documentation: Architectures for high availability of MySQL clusters on Compute Engine2.
* Percona Blog: MySQL Performance Tuning 101: Key Tips to Improve MySQL Database Performance3.
質問 # 140
Coral IT Systems is a multinational company that consumes cloud services. As a cloud service consumer (CSC), the organization should perform activities such as selecting, monitoring, implementing, reporting, and securing the cloud services. The CSC and cloud service provider (CSP) have a business relationship in which the CSP delivers cloud services to the CSC. Which cloud governance role is applicable to the organization?
正解：C
解説：
Explore
The role of a Cloud Service Manager is applicable to an organization like Coral IT Systems that consumes cloud services and is responsible for selecting, monitoring, implementing, reporting, and securing these services.
Role Responsibilities: A Cloud Service Manager oversees the cloud services portfolio, ensuring that the services meet the organization's requirements and are aligned with its business objectives.
Service Selection: They are involved in selecting the appropriate cloud services that fit the company's needs.
Monitoring and Implementation: They monitor the performance and security of the cloud services and are responsible for their successful implementation.
Reporting: The Cloud Service Manager is also responsible for reporting on the performance and compliance of the cloud services.
Security: Ensuring the security of cloud services is a critical part of their role, which includes managing access controls and data protection measures.
Reference:
In the shared responsibility model of cloud computing, the Cloud Service Manager plays a pivotal role in managing the services provided by the CSP and ensuring that they are effectively integrated and utilized within the organization1. This role is essential for maintaining the governance, risk management, and compliance aspects of cloud services1.
質問 # 141
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