IT Service Management DAB 202 Week 1 Quiz

Course Information

• Course Title: IT Service Management (DAB 202)
• Week: 1
• Instructor: The instructor holds a Ph.D. in Information Systems (XAI) and a Master's in Information Security, along with a Master of Business Administration and a Bachelor of Science in Computer Engineering.
• Communication Preference: Email only, with the subject line including "DAB 202" and including Full Name, Section Number, and Student Number

Course Introduction

• The course begins with a general introduction to the overall course.
• The instructor's qualifications are displayed, including degrees and titles

Course Expectations

• Submission of assignments must be on time.
• Late submissions will score automatically zero

Course Tour

• Topics that will be covered include course delivery, course outlines, and syllabus.
• A walkthrough of the course's Blackboard site will also take place.

Grading

• Letter grades are based on the percentage ranges listed below:
  • A: 80%–100%
  • B: 70%–79%
  • C: 60%–69%
  • D: 50%–59%
  • F: Below 50%

Knowledge Check

• For a score of 78.5, the corresponding letter grade is B.

Cloud Computing Concepts

• Traditional procurement methods involve upfront capacity purchases.
• Cloud computing offers flexible, on-demand services.
• Companies can adapt to fluctuations in usage without incurring unnecessary costs during off-peak periods.

What is Cloud Computing?

• Computing power, databases, storage, networking and software can be delivered on demand.
• Services utilize the internet.
• Users can pay as they go
• Requires no up-front infrastructure investment; resources are available as needed

NIST Cloud Computing Model

• The NIST cloud computing model displays four essential characteristics:
  • On-demand self-service
  • Broad network access
  • Resource pooling
  • Rapid elasticity
  • Measured service

Essential Cloud Characteristics

• Components that make up cloud computing including:
  • On-demand self-service
  • Rapid elasticity
  • Broad network access
  • Resource pooling
  • Measured service

On-Demand Self-Service

• Services are accessible on demand and without human interaction with a service provider.
• Users themselves can provision resources such as servers, storage, or web applications as required.
• Organizations can manage resources using internal IT staff without reliance on the service provider's staff.

Broad Network Access

• Accessing cloud-based resources from various networks is possible.
• These networks can include internal local area networks, internet connections, or a combination of both.
• Cloud-based resources can often be accessed globally.

Resource Pooling

• Cloud service providers pool network, storage, and compute capabilities.
• These pooled resources are allocated to customers on demand.
• Economy of scale principles are applied.

Rapid Elasticity

• Cloud-based resources can be scaled up or down to meet changing needs.
• There is no need to perpetually maintain hardware resources that might be underutilized or idle.

Measured Service

• The use of resources within the cloud is carefully tracked and measured by the service providers.
• Billing is tied to actual usage of cloud resources.

Cloud Service Models

• This section details the different types of service models for cloud computing:
  • SaaS (Software as a Service)
  • PaaS (Platform as a Service)
  • IaaS (Infrastructure as a Service)

Infrastructure as a Service (IaaS)

• All computing resources are provided in a virtual environment.
• The cloud service provider remains responsible for supporting hardware.
• Customers are responsible for managing virtual machines that run on the CSP's infrastructure.
• Businesses can scale resource utilization as needed.
• Reduced capital expenditures are a potential advantage versus traditional infrastructure purchases.

Platform as a Service (PaaS)

• Cloud service providers maintain the operating system and hardware infrastructure.
• It is a program language execution environment enabling developers to build, compile and run programs.
• Users can typically use the platform for developing and running applications, or database services.
• Focus is on providing an appropriate environment to facilitate application development.

Software as a Service (SaaS)

• Software is delivered on-demand over a network without installation efforts.
• The cloud service provider takes responsibility for the underlying infrastructure--patches, hardware, operating system etc.
• Software is typically licensed via subscriptions.
• This model is highly adaptable to various hardware or operating system configurations.
• It is specifically geared for end users

Week 1 Goals

• Sign up for AWS Academy
• Create an AWS free tier account (optional)
• Review the Overview of Amazon Web Services White Paper from official AWS documentation.
• Review links to additional cloud computing information from official AWS documentation.