Podcast
Questions and Answers
What is the role of a cloud hypervisor?
What is the role of a cloud hypervisor?
- To provide encryption for data storage.
- To create physical servers from virtual machines.
- To monitor cloud resource usage.
- To enable sharing of physical computing and memory resources across VMs. (correct)
Which of the following is NOT considered a cloud mechanism?
Which of the following is NOT considered a cloud mechanism?
- Cloud Resource Replication
- Physical Server Management (correct)
- Automated Scaling
- Load Balancer
Why are virtual servers significant in cloud computing?
Why are virtual servers significant in cloud computing?
- They increase the number of physical servers in the cloud.
- They replace cloud storage entirely.
- They eliminate the need for cloud security measures.
- They allow multiple cloud consumers to share a single physical server. (correct)
Which of the following best describes the shared security responsibility in cloud environments?
Which of the following best describes the shared security responsibility in cloud environments?
What defines the capacity of a physical server in relation to virtual servers?
What defines the capacity of a physical server in relation to virtual servers?
Which mechanism is used to automatically adjust resources based on demand?
Which mechanism is used to automatically adjust resources based on demand?
Which component is essential for establishing a logical network perimeter in cloud environments?
Which component is essential for establishing a logical network perimeter in cloud environments?
Which of the following describes a common function of a load balancer in cloud services?
Which of the following describes a common function of a load balancer in cloud services?
What does the failover system do when a failure is detected in an IT resource?
What does the failover system do when a failure is detected in an IT resource?
What occurs when the active instance of a Cloud Service A implementation fails?
What occurs when the active instance of a Cloud Service A implementation fails?
What characterizes an active-passive configuration in a failover system?
What characterizes an active-passive configuration in a failover system?
What is the primary purpose of the resource cluster mechanism?
What is the primary purpose of the resource cluster mechanism?
In an active-active configuration, how does the system respond to resource failure?
In an active-active configuration, how does the system respond to resource failure?
Which of the following statements about a cluster management platform is TRUE?
Which of the following statements about a cluster management platform is TRUE?
What role does the load balancer play in the failover system?
What role does the load balancer play in the failover system?
How does a server cluster increase performance?
How does a server cluster increase performance?
What happens to an inactive implementation in a failover process?
What happens to an inactive implementation in a failover process?
What function does high-speed dedicated network connections serve in the resource cluster mechanism?
What function does high-speed dedicated network connections serve in the resource cluster mechanism?
What is the primary purpose of monitoring the operational status of the active instance?
What is the primary purpose of monitoring the operational status of the active instance?
In the context of cloud services, what is typically the first action taken after a failure is detected?
In the context of cloud services, what is typically the first action taken after a failure is detected?
In an active-passive failover system, what happens to the backup instance during normal operation?
In an active-passive failover system, what happens to the backup instance during normal operation?
What is a primary characteristic of resource clusters?
What is a primary characteristic of resource clusters?
What does a failover system ensure when one Cloud Service A implementation fails?
What does a failover system ensure when one Cloud Service A implementation fails?
Which type of resource cluster specifically involves virtual servers?
Which type of resource cluster specifically involves virtual servers?
What is the main cause of misconfiguration in cloud services?
What is the main cause of misconfiguration in cloud services?
What is one effective method to reduce the risk of unauthorized access?
What is one effective method to reduce the risk of unauthorized access?
Which principle should be applied for user access to systems to enhance security?
Which principle should be applied for user access to systems to enhance security?
What vulnerability occurs due to a lack of proper authentication or authorization mechanisms?
What vulnerability occurs due to a lack of proper authentication or authorization mechanisms?
What can result from weak passwords or shared accounts in cloud environments?
What can result from weak passwords or shared accounts in cloud environments?
What incident affected the Broward Health public health system?
What incident affected the Broward Health public health system?
How can organizations improve their security configurations?
How can organizations improve their security configurations?
What potential consequence can arise from insufficient authorization in cloud environments?
What potential consequence can arise from insufficient authorization in cloud environments?
What does the VIM do in response to a busy physical server?
What does the VIM do in response to a busy physical server?
How does state information get synchronized during virtual server migration?
How does state information get synchronized during virtual server migration?
What is the primary purpose of the Logical Network Perimeter?
What is the primary purpose of the Logical Network Perimeter?
Which of the following is NOT a key feature of the Logical Network Perimeter?
Which of the following is NOT a key feature of the Logical Network Perimeter?
Which technologies contribute to establishing the Logical Network Perimeter?
Which technologies contribute to establishing the Logical Network Perimeter?
What is the function of virtual firewalls within the Logical Network Perimeter?
What is the function of virtual firewalls within the Logical Network Perimeter?
What does the cloud storage mechanism enable?
What does the cloud storage mechanism enable?
Which of the following represents implementations of logical network perimeters in cloud environments?
Which of the following represents implementations of logical network perimeters in cloud environments?
Study Notes
Learning Objectives
- Comprehend the building blocks of cloud environments.
- Explain how cloud mechanisms support cloud services and features.
- Understand fundamental terms and concepts in cloud security.
- Identify common threats and attacks in cloud environments.
- Recognize the shared security responsibility between cloud consumers and providers.
Cloud Mechanisms
- Technology-centric aspect of cloud computing necessitates a set of mechanisms for service support.
- Key mechanisms include:
- Cloud Virtual Server and Hypervisor
- Automated Scaling
- Load Balancer
- Logical Network Perimeter
- Cloud Storage
- Usage Monitor
- Resource Replication
- Multi-device Broker
- Ready-Made Environment
Cloud Virtual Server
- Virtual servers emulate physical servers to allow multiple consumers to share resources.
- Each virtual server instance can host various IT resources and solutions.
- Capacity limits dictate the number of virtual instances per physical server.
- Terminology: Virtual Server is synonymous with Virtual Machine (VM).
- Serves as a foundational aspect of cloud infrastructure.
Cloud Hypervisor
- Software enabling resource sharing across multiple VMs on a cloud provider's physical server.
- Virtual Infrastructure Manager (VIM) commands hypervisors, facilitating live migration of virtual servers.
- Synchronization of state information (e.g., memory pages) is achieved through shared cloud storage.
Logical Network Perimeter
- Acts as a virtual barrier separating a secure cloud environment from an external network.
- Established using software-defined networking, virtual networks, and security measures.
- Ensures secure internal communications and isolates cloud IT resources from unauthorized access.
- Implementations include Virtual Private Cloud (VPC) in AWS and Virtual Network (VNet) in Azure.
Cloud Storage Mechanism
- Enables data management and access over the internet using remote servers.
- Can be virtualized similar to physical servers.
- Facilitates failover systems for operational continuity during errors.
- Active-Active: Both systems run concurrently, failover when one fails.
- Active-Passive: Standby system activates when the active system fails.
Resource Cluster Mechanism
- Allows logical grouping of multiple IT resources to increase efficiency and capacity.
- Resource instances can be managed as a single entity for improved availability.
- High-speed connections facilitate communication among clustered resources for workload management.
Misconfiguration of Cloud Services
- Commonly results from human error; preventable through:
- Deploying Multi-Factor Authentication (MFA).
- Applying the Principle of Least Privilege (PoLP) for access control.
- Automating security checks with appropriate tools.
- Following best practices for configuration.
Insufficient Authorization
- Leads to unauthorized access and potential data breaches.
- Often arises from weak passwords or shared accounts, resulting in broader access for attackers.
- Attacks exacerbate risks associated with accessing protected IT resources.
- Example: Broward Health data breach affected 1,357,879 individuals due to insufficient protections on medical information.
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Description
This quiz covers Cloud Mechanisms and Cloud Security as part of the CS 5610 course. It explores the building blocks of cloud environments, and explains how cloud services function. Additionally, common threats and attacks in cloud security are discussed, ensuring a comprehensive understanding of the subject.
