It can Ibe referred to as the most preferred certification approach to getting into the Information Technology Service Management department.
ITIL is the most widely used service management framework.
Do kindly note: After the release of Version 4, ITIL is no longer an acronym that stands for Information technology Infrastructure library.
The reason for the change at version was because ITIL is no longer a library but a community involved with various content writers and contributors.
Also, the community now has over 2000 members who steer its development.
It's no surprise that information technology can be found in the core areas of every business.

Building the ITIL Community ( Photo by Axelos )The purpose of ITIL is to offer organizations comprehensive guidance for the management of information technology within the modern world evolution to provide an end to end IT digital operating model covering a sustainable and valuable  tech-enabled product and servicewhile guiding the Organization, on how technologies used may interfaces with the companies business strategy by promoting it.

Below is a link to where the full update to the latest ITIL scheme can be found

https://www.axelos.com/itil-update

ITIL Certification Scheme ( Photo by Axelos )

ITIL Foundation exam format

1. Multiple choice examination questions
2. There are going to be likely four types of questions:  standard, missing word, list and what is not 
3. 40 questions each worth 1 point
4. 26 marks required to pass (out of 40 available) - 65%
5. 60 minute's duration to complete the exam
6. 75 minute's to complete it if not taking the exam in one's Native / Working Language 
7. Closed book.

Naturally, ITIL's questions are based upon bloom's level taxonomy

• Blooms Level 1 ( represents approximately 77.5% of the question ) involves "to remember." 
• Blooms Level 2 ( represents approximately 22.5% of the question ) involves "to understand." 
• The apply(3), Analyse(4), Evaluate(5), and create(6) bloom level are tested in ITIL Managing professional (ITIL MP) and ITIL Strategic Leader (ITIL SL)

ITIL 4 provides an organization with a comprehensive framework for ITSM.
IT is designed to ensure that an effective, efficient, flexible, coordinated and integrated system for governance and management of ITIL services is established and continually improving in the organization.

Services are the primary way an organization creates value for them selfs and their customers

All most all services are IT enables from areas of split riding to booking a hotel, to purchasing things from Amazon.

There is no denying that there are tremendous benefits for organizations in creating IT service management capabilities

Note: stagnation does not bring value

If an organization wishes to build a sustainable and effective service management model, they must be ready to:

• Create that ITSM Capability module
• Manage that ITSM Capability Module
• Improve upon that ITSM Capability Module
• Expand on the ITSM Capability Module

Dream Big

Technology keeps evolving like nothing before

We have things like

• cloud computing
• blockchain technology
• memory-only storage
• Machine learning and artificial intelligence
• Internet of things (IoT)

The Four ITIL dimensions of IT Service Management

All these technologies have opened up fresh areas of values where services had evolved as well to where we  see things like

• infrastructure as a service - Iaas
• Platform as a service - PaaS
• Software as a Service - SaaS

1. ITIL Service Value Chain ( SVC )
2. ITIL Practice
3. ITIL Guiding Principle
4. IT Govenance
5. Continusl Improvement