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A company with critical resources in the cloud needs to ensure data is available in multiple datacenters around the world.
Which of the following BEST meets the company's needs?
Geo-redundancy is the best option for a company that needs to ensure data availability in multiple datacenters around the world.Geo-redundancy is the duplication of IT infrastructure and data across geographically dispersed locations, such as different regions or continents1. Geo-redundancy provides several benefits for cloud-based applications, such as:
High availability: Geo-redundancy can improve the availability of cloud services by reducing the impact of regional outages, disasters, or network failures.If one datacenter becomes unavailable, the application can switch to another datacenter that has a copy of the data and continue to operate2.
Performance: Geo-redundancy can enhance the performance of cloud services by reducing the latency and bandwidth consumption for users who are located far from the primary datacenter.By having datacenters closer to the users, the application can deliver faster and more consistent responses3.
Compliance: Geo-redundancy can help the company comply with regulatory or legal requirements that mandate data sovereignty or data protection.By having datacenters in different jurisdictions, the company can store and process data according to the local laws and regulations4.
The other options are not as suitable as geo-redundancy for the company's needs because:
Auto-scaling: Auto-scaling is the ability of cloud services to automatically adjust the amount of resources allocated to an application based on the demand and workload.Auto-scaling can improve the scalability and cost-efficiency of cloud services, but it does not guarantee data availability in multiple datacenters5.
Disaster recovery: Disaster recovery is the process of restoring the normal operation of an application after a disruption or failure. Disaster recovery can involve backup, restore, and failover mechanisms, but it does not necessarily require data replication across multiple datacenters.
High availability: High availability is the degree to which an application can operate without interruption or downtime. High availability can be achieved by using redundant components, load balancing, and fault tolerance techniques, but it does not imply data distribution across multiple datacenters.
1: Georedundancy - Open Telekom Cloud
2: Why geo-redundancy for cloud infrastructure is a 'must have'
3: Use geo-redundancy to design highly available applications
4: Protect your cloud infrastructure with geo-redundancy - Data Centre Review
5: What is Auto Scaling? - Amazon Web Services
: What is Disaster Recovery? - Microsoft Azure
: What is High Availability? - IBM Cloud
A cloud administrator configures a server to insert an entry into a log file whenever an administrator logs in to the server remotely. Which of the following BEST describes the type of policy being used?
An audit policy is a set of rules and guidelines that define how to monitor and record the activities and events that occur on a system or network1. An audit policy can help track and report the actions of users, applications, processes, or devices, and provide evidence of compliance, security, or performance issues. An audit policy can also help deter unauthorized or malicious activities, as the users know that their actions are being logged and reviewed.
A cloud administrator who configures a server to insert an entry into a log file whenever an administrator logs in to the server remotely is using an audit policy, as they are enabling the collection and recording of a specific event that relates to the access and management of the server. The log file can then be used to verify the identity, time, and frequency of the administrator logins, and to detect any anomalies or suspicious activities.
An authorization policy is a set of rules and guidelines that define what actions or resources a user or a system can access or perform2. An authorization policy can help enforce the principle of least privilege, which means that users or systems are only granted the minimum level of access or permissions they need to perform their tasks. An authorization policy can also help prevent unauthorized or malicious activities, as the users or systems are restricted from accessing or performing actions that are not allowed or necessary.
A hardening policy is a set of rules and guidelines that define how to reduce the attack surface and vulnerability of a system or network3. A hardening policy can help improve the security and resilience of a system or network, by applying various measures such as disabling unnecessary services, removing default accounts, applying patches and updates, configuring firewalls and antivirus software, etc. A hardening policy can also help prevent unauthorized or malicious activities, as the users or systems are faced with more obstacles and challenges to compromise the system or network.
An access policy is a set of rules and guidelines that define who or what can access a system or network, and under what conditions or circumstances4. An access policy can help control the authentication and identification of users or systems, and the verification and validation of their credentials. An access policy can also help prevent unauthorized or malicious activities, as the users or systems are required to prove their identity and legitimacy before accessing the system or network.Reference:CompTIA Cloud Essentials+ CLO-002 Study Guide, Chapter 6: Cloud Service Management, pages 229-230.
A contract that defines the quality and performance metrics that are agreeable to both parties is called an:
A service level agreement (SLA) is a contract that defines the quality and performance metrics that are agreeable to both parties. An SLA specifies the expectations and responsibilities of the service provider and the customer in terms of service availability, reliability, security, and responsiveness. An SLA also defines the penalties or remedies for non-compliance with the agreed-upon metrics.An SLA is a key component of cloud computing contracts, as it ensures that the cloud service provider delivers the service according to the customer's requirements and expectations12.
What is SLA?- Service Level Agreement Explained - AWS2
Which of the following deployment models includes application components on a company's network as well as on the Internet?
A hybrid cloud deployment model includes application components on a company's network as well as on the Internet. A hybrid cloud is a combination of two or more cloud deployment models, such as public, private, or community, that are connected by a common network or technology. A hybrid cloud allows the company to leverage the benefits of both public and private clouds, such as scalability, cost-efficiency, security, and control.A hybrid cloud can also enable the company to use different cloud services for different types of workloads, such as sensitive data, high-performance computing, or disaster recovery12.Reference:CompTIA Cloud Essentials+ Certification | CompTIA IT Certifications,CompTIA Cloud Essentials+: Essential Cloud Principles,CompTIA Cloud Essentials CLO-002 Certification Study Guide,CompTIA Cloud+ Certification Exam Objectives
Which of the following policies dictates when to grant certain read/write permissions?
Access control is a policy that dictates when to grant certain read/write permissions to users or systems.Access control is a key component of information security, as it ensures that only authorized and authenticated users can access the data and resources they need, and prevents unauthorized access or modification of data and resources1.Access control policies can be based on various factors, such as identity, role, location, time, or context2.
Communications, department-specific, and security policies are not directly related to granting read/write permissions, although they may have some implications for access control.Communications policies are policies that define how information is exchanged and communicated within or outside an organization, such as the use of email, social media, or encryption3. Department-specific policies are policies that apply to specific functions or units within an organization, such as human resources, finance, or marketing. Security policies are policies that establish the overall goals and objectives of information security in an organization, such as the protection of confidentiality, integrity, and availability of data and systems.Reference:Access Control Policy and Implementation Guides | CSRC;What Is Access Control? | Microsoft Security;Communication Policy - Definition, Examples, Cases, Processes; [Departmental Policies and Procedures Manual Template | Policies and Procedures Manual Template]; [Security Policy - an overview | ScienceDirect Topics].
