10+ Cloud Infrastructure Engineer Interview Questions and Answers

SLA is a formal agreement between a service provider and a customer outlining the level of service expected.

• SLAs define the level of service, including availability, performance, and support.

• They typically include metrics, such as uptime percentage and response time.

• Penalties may be specified for failing to meet SLA requirements.

• SLAs help manage expectations and ensure accountability between parties.

• Example: An SLA may guarantee 99.9% uptime for a cloud service.

Application model in SCCM is used to deploy applications based on user-centric requirements, while package model is used for traditional software deployment.

• Application model allows for user-centric deployments and dependencies, while package model is more rigid and requires manual intervention for dependencies.

• Application model supports user device affinity, allowing for targeted deployments to specific users or devices.

• Package model is more suitable for legacy applications ...read more

ITIL (Information Technology Infrastructure Library) is a set of best practices for IT service management.

• ITIL consists of five core publications: Service Strategy, Service Design, Service Transition, Service Operation, and Continual Service Improvement.

• It focuses on aligning IT services with the needs of the business and improving overall service quality.

• ITIL processes include Incident Management, Problem Management, Change Management, and Service Level Management.

• ITIL helps...read more

Macro in C programming is a preprocessor directive that defines a symbolic name or constant value.

• Macros are defined using #define directive in C programming.

• They are used to define constants, functions, or code snippets that can be reused throughout the program.

• Example: #define PI 3.14159

• Example: #define MAX(x, y) ((x) > (y) ? (x) : (y))

Tools commonly used for monitoring and ticketing in cloud infrastructure include Nagios, Zabbix, and ServiceNow.

• Nagios is a popular open-source monitoring tool used for monitoring servers, network devices, and applications.

• Zabbix is another open-source monitoring tool that provides real-time monitoring and alerting for servers, virtual machines, and network devices.

• ServiceNow is a cloud-based IT service management platform that includes ticketing, incident management, and cha...read more

Only 4 primary partitions are created in Linux due to limitations of the MBR partitioning scheme.

• MBR partitioning scheme allows for a maximum of 4 primary partitions.

• Extended partitions can be used to create more than 4 partitions by creating logical partitions within the extended partition.

• GPT partitioning scheme does not have the limitation of 4 primary partitions.

Semi colon is used to separate independent clauses in a sentence or to separate items in a list.

• Semi colon is used to separate two independent clauses in a sentence without using a conjunction.

• Example: I have a meeting at 9 am; please don't be late.

• Semi colon is also used to separate items in a list when the items themselves contain commas.

• Example: The conference will be held in New York, NY; Los Angeles, CA; and Chicago, IL.

Cloud computing is the delivery of computing services over the internet.

• Cloud computing allows users to access data and applications from anywhere with an internet connection.

• It offers scalability, flexibility, and cost-effectiveness compared to traditional on-premises infrastructure.

• Examples of cloud computing services include Amazon Web Services, Microsoft Azure, and Google Cloud Platform.

IaC stands for Infrastructure as Code. Its main motive is to automate the process of infrastructure deployment and management.

• IaC is a process of managing and provisioning infrastructure through code rather than manual processes.

• It helps in automating the deployment and management of infrastructure, making it more efficient and reliable.

• IaC tools like Terraform, Ansible, and Puppet are used to define infrastructure as code.

• It enables version control, testing, and continuous i...read more

OOPS stands for Object-Oriented Programming System. Its pillars are Inheritance, Encapsulation, Abstraction, and Polymorphism.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation restricts access to certain components within a class, protecting the data.

• Abstraction hides the complex implementation details and only shows the necessary features to the outside world.

• Polymorphism allows objects to be treated as instances of their parent c...read more

A forest in an enterprise environment refers to a collection of Active Directory domains that share a common schema and global catalog.

• A forest is made up of one or more domains that are interconnected in a trust relationship.

• It allows for centralized management of users, groups, and resources across multiple domains.

• Each domain within a forest has its own domain controllers but shares a common schema and global catalog.

• Forests are used to establish security boundaries and ad...read more

Experienced in various cloud tools for infrastructure management, automation, and monitoring.

• Proficient in AWS services like EC2, S3, and RDS for scalable cloud solutions.

• Utilized Terraform for infrastructure as code, enabling version control and automation.

• Implemented CI/CD pipelines using Jenkins and GitLab CI for streamlined deployments.

• Experience with container orchestration using Kubernetes for managing microservices.

• Monitored cloud infrastructure with tools like CloudWa...read more

Hybrid model combines on-premises infrastructure with cloud services for flexibility and scalability.

• Combines on-premises infrastructure with cloud services

• Allows for flexibility and scalability

• Can help optimize costs by utilizing both on-premises and cloud resources as needed