In distributed systems, middleware plays a crucial role in:
- Communication and Integration
- Data Presentation
- End-User Interaction
- Processing and Storage
Middleware serves as an intermediary layer facilitating communication and integration between various distributed system components. It ensures data can flow between them efficiently.
A company wants to ensure zero downtime deployments for their application. They are considering Kubernetes. Which feature of Kubernetes would facilitate this?
- Automatic load balancing
- Cloud resource management
- Containerization
- Self-healing capabilities
Kubernetes provides self-healing capabilities, enabling it to automatically replace or reschedule containers if they fail, ensuring minimal downtime during deployments.
AWS Lambda supports automatic scaling by adjusting the number of ________ it runs in parallel.
- Containers
- Functions
- Instances
- Threads
AWS Lambda is a serverless compute service. It scales by adjusting the number of functions it runs in parallel, not instances, threads, or containers.
In a hybrid cloud, the orchestration between different cloud services is enabled by:
- Edge Computing
- Hybrid Cloud Management Platform (CMP)
- Hypervisor
- Virtual Private Network (VPN)
Orchestration in a hybrid cloud is facilitated by Hybrid Cloud Management Platforms (CMP), which provide tools to manage and integrate services across multiple cloud environments.
An e-commerce platform experiences high traffic surges during sale events. They want to migrate to the cloud efficiently, with minimal downtime. Which strategy would be best for them?
- Cloud Bursting
- Horizontal Scaling
- Serverless Computing (FaaS)
- Vertical Scaling
Cloud bursting is the most suitable strategy for an e-commerce platform with traffic surges. It allows the platform to scale dynamically to the cloud to handle peak loads while minimizing the migration effort.
In Kubernetes, which object allows you to maintain a stable IP address for pods as they are rescheduled?
- ConfigMap
- PodDisruptionBudget
- Secret
- Service
A Kubernetes Service is used to maintain a stable IP address for pods. It acts as an abstraction layer over a set of pods, allowing access to them through a consistent DNS name or IP address. This ensures that clients can reach the pods, even if they are rescheduled.
The characteristic of cloud computing that ensures that a user can control and manage the computing resources, even if they don't control the underlying infrastructure, is called:
- Resource Pooling
- Resource Virtualization
- Scalability as a Service
- Virtual Machine Management
The essential characteristic referred to here is "Resource Pooling." It allows users to control and manage computing resources, abstracting the underlying infrastructure. Resources are pooled together for better utilization and management.
Unlike traditional databases, data lakes can store structured, semi-structured, and ________ data.
- Encrypted
- Indexed
- Relational
- Unstructured
Data lakes are known for their ability to store a variety of data types, including "unstructured" data, such as text documents, making them versatile for data storage.
What does "Account Hijacking" in cloud computing refer to?
- Excessive use of cloud resources
- Gaining physical access to cloud servers
- Inadequate network security in the cloud
- Unauthorized access to a user's cloud account by an attacker
Account hijacking refers to unauthorized access to a user's cloud account by an attacker who gains access to sensitive information or controls the account.
Which of the following best describes cloud computing?
- A model for accessing computing resources over the internet
- A physical location for data storage
- A service for virtual reality gaming
- A technology for weather forecasting
Cloud computing is a model that enables the on-demand access to computing resources like servers, storage, and databases over the internet. It's not about weather forecasting or VR gaming.