CV0-003 Exam Dumps - CompTIA Cloud+ Certification Exam

One possible cause for the incidents in which attackers are able to access sensitive data from a corporate application’s database is that the account credentials used by the web application to access the database are compromised or leaked. The log confirms that the attackers are using the WebApp user account to assume the DBA role and execute the GetData API call, which could allow them to retrieve any data from the database. The account credentials could be compromised or leaked due to various reasons, such as weak passwords, phishing attacks, code injection, or insecure storage or transmission. Therefore, one action that will most likely prevent future compromises is to rotate the account credentials, which means changing them periodically or after every incident occurrence. Rotating the account credentials can reduce the risk of unauthorized access by invalidating the old or stolen credentials and enforcing strong and unique passwords for each account.

According to the CompTIA Cloud+ Study Guide1, scaling is “the ability to increase or decrease the size or capacity of a cloud service”. There are two main types of scaling: horizontal and vertical.

Horizontal scaling is “the ability to increase or decrease the number of instances or nodes of a cloud service”. This means that horizontal scaling can add or remove servers or virtual machines to a cloud service, depending on the workload demand. Horizontal scaling can improve availability, reliability, and performance, but it can also increase complexity and cost.

Vertical scaling is “the ability to increase or decrease the resources allocated to an instance or node of a cloud service”. This means that vertical scaling can add or remove CPU, memory, disk, or network resources to a server or virtual machine, depending on the workload demand. Vertical scaling can improve performance and efficiency, but it can also have limitations and risks.

Cloud bursting is “a technique that allows a private cloud to use public cloud resources when it reaches its capacity limit”. This means that cloud bursting can extend the private cloud to the public cloud when there is a peak in demand that exceeds the private cloud resources. Cloud bursting can provide scalability, flexibility, and cost savings, but it can also introduce challenges such as security, compatibility, and latency.

Autoscaling is “the ability to automatically increase or decrease the number of resources allocated to a cloud service based on the current demand”. This means that autoscaling can adjust the size or capacity of a cloud service without human intervention, using predefined rules or policies. Autoscaling can optimize performance, availability, and cost, but it can also require careful monitoring and configuration.

Based on this information, I think the best answer to your question is C. Cloud bursting. Cloud bursting can help the company utilize its private cloud for the new application and also access public cloud resources when the private cloud resources can only meet 75% of the application’s requirements. This way, the company can accommodate 100% of the application’s requirements without having to purchase extra computing resources for their private cloud.

I hope this helps you understand the concept of cloud bursting better. If you want to learn more about CompTIA Cloud+, you can check out some of these resources:

CompTIA Cloud+ : Cloud High Availability & Scaling: A video course that covers the topics of high availability and scaling in cloud environments, including autoscaling, horizontal scaling, vertical scaling and cloud bursting.

Cloud+ (Plus) Certification | CompTIA IT Certifications: The official website of CompTIA Cloud+, where you can find exam details, preparation materials, renewal information and more.

The inbound rule that the security team identified as a potential vulnerability is the one that allows SSH access (port 22) from any source (0.0.0.0/0). This means that anyone on the internet can try to connect to the Linux servers using SSH, which poses a risk of unauthorized access or brute-force attacks. The cloud administrator, who is working remotely, logs in to the cloud management console and modifies the rule to set the source to “My IP”. This means that only the administrator’s IP address can connect to the Linux servers using SSH, which improves the security of the servers. However, this also prevents other authorized users, such as the internal developer, from accessing the servers using SSH, as they have different IP addresses than the administrator. Therefore, the administrator needs to modify the rule again to allow more sources for SSH access.

The best option for both the developer and the administrator to access the server from their locations is to modify the inbound rule to allow the company’s external IP address as a source. This means that only the IP addresses that belong to the company’s network can connect to the Linux servers using SSH, which reduces the attack surface and ensures that only authorized users can access the servers. The company’s external IP address can be obtained by using a web service such as [What Is My IP Address?] or [IP Location]. The administrator can then enter this IP address or its CIDR notation in the source field of the inbound rule.

A .yaml file is a common file type for defining the configuration and deployment of application containers in a cloud environment. YAML stands for YAML Ain’t Markup Language, and it is a human-readable data serialization language that uses indentation and keywords to represent the structure and values of the data1. A .yaml file can specify the properties of the container, such as the image, ports, environment variables, volumes, resources, and scaling rules. For example, to modify the replication factor of an automated application container from 3 to 5, the systems administrator can edit the .yaml file on the master controller and change the value of the replicas field under the spec section2. For example:

apiVersion: apps/v1 kind: Deployment metadata: name: my-app spec: replicas: 5 # change this value from 3 to 5 selector: matchLabels: app: my-app template: metadata: labels: app: my-app spec: containers: - name: my-app image: my-app-image ports: - containerPort: 80

A .txt file is a plain text file that can store any kind of text data, but it is not a standard format for defining container configurations. A .conf file is a configuration file that can store settings and parameters for various applications or services, but it is not commonly used for container deployments. A .etcd file is not a valid file type, but etcd is a distributed key-value store that provides a reliable way to store data across a cluster of machines3. Etcd is often used by Kubernetes, a popular platform for managing containerized applications, to store and synchronize the cluster state. However, etcd does not store the configuration files of the containers, but rather the runtime data of the cluster. Therefore, none of these options are correct.

The first step in incident response is to contain the incident activities and attackers, which means preventing them from spreading to other systems or causing more damage. In this case, the security analyst should isolate the instance from the network into quarantine, which means cutting off its communication with other hosts and services. This will stop the cryptocurrency mining activity and prevent the attacker from accessing the instance remotely. Isolating the instance also preserves the evidence for further analysis and investigation.

A volume-based licensing model is a licensing model that charges the customer based on the amount of data or resources that they consume or use. A volume-based licensing model is suitable for an laaS (Infrastructure as a Service) environment, as it allows the customer to pay only for what they need and scale up or down as their demand changes. A volume-based licensing model can provide financial benefits for the customer, such as lower upfront costs, greater flexibility, and more predictable billing.QUESTION NO: 277

A cloud administrator is evaluating a solution that will limit access to authorized individuals. The solution also needs to ensure the system that connects to the environment meets patching, antivirus, and configuration requirements. Which of the following technologies would BEST meet these requirements?

A.NAC

B.EDR

C.IDS

D.HIPS

Answer: A

NAC (Network Access Control) is a technology that will limit access to authorized individuals and ensure the system that connects to the environment meets patching, antivirus, and configuration requirements. NAC can enforce policies and rules that define who, what, when, where, and how a device or a user can access a network or a cloud environment. NAC can also inspect and evaluate the security posture and compliance status of a device or a user before granting or denying access. For example, NAC can check if the device has the latest patches, antivirus software, and configuration settings, and if not, it can quarantine, remediate, or reject the device. NAC can also monitor and audit the ongoing network activity and behavior of the devices and users, and take actions if any violations or anomalies are detected.

The licensing model of the SaaS provider is an important factor to consider before migrating to a SaaS-based solution for email infrastructure. The licensing model determines how much the organization will pay for the service, how many mailboxes they can create, what features they can access, and what SLAs they can expect. The organization should compare different SaaS providers’ licensing models and choose the one that best suits their needs and budget. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 1.0 Configuration and Deployment, Objective 1.4 Given a scenario, execute a provided deployment plan.

The chain of custody is a process that documents and preserves the integrity and authenticity of evidence from the time it is collected until it is presented in court. The chain of custody includes information such as who collected, handled, stored, or transferred the evidence, when and where it was done, and how it was done. By accidentally deleting the perpetrator’s user data, the security administrator has violated the chain of custody, as the evidence has been altered or destroyed and can no longer be used in court. Reference: [CompTIA Cloud+ Certification Exam Objectives], Domain 2.0 Security, Objective 2.4 Given a scenario, implement security automation and orchestration in a cloud environment.