Book Notes

Title: The Ethiopian Army: From Victory to Collapse, 1977-1991 Author: Fantahun Ayele Publication date: 2014 Print length: 328 pages Introduction Comparison of Ethiopian revolution with French and Russian (3) Chapter 1 Under Tewodros, Ethiopia started producing mortars and cannons (5) How the Ethiopian army was modernized under Menelik and Haile Selassie (5-7) The British trained the Ethiopian army after the Italian liberation (7-8, 15-6) Ethiopia pulls away from England and becomes close the US (10) Ethiopia reorganizes military fearing a future Somalian attack (11) The imperial bodyguard attempts a coup (12) The imperial bodyguard always received special treatment. Troops that were sent to Korea were selected from the imperial bodyguard (12) Other forces of the military were jealous of the imperial bodyguard because of the special treatment they received (12) "the conflict between the bodyguard and other units did not annoy the emperor. After all, it was the emperor who presumab...

Chapter 1 As organizations continue to decentralize and outsource non-core functions to suppliers, it’s essential to establish trust between partners and have transparency in data management to ensure data security and privacy IAM is a technology framework that helps organizations ensure that the right people have access to the right resources. IAM includes two main functions: authentication and authorization. IAM capabilities have become the central pillar for cloud-based scenarios A crucial piece of an IAM solution is its life cycle management capabilities. Microsoft Cloud Adoption Framework (CAF) provides a set of best practices, guidance, and tools for different stages of cloud adoption, from initial planning to implementation and optimization it is not just for Azure, it can work with  Amazon Web Services (AWS) and Google Cloud. includes a specific IAM design area that focuses on providing guidance and best practices for designing secure and scalable IAM solutions Azure AD sup...

Chapter 11 Main Takeaways: Britain initially supported Ethiopia's claim to Eritrea because it wanted the Ogaden France was opposed to Ethiopia gaining access to port.  Pakistan, Guatemala, Burma, South Africa, and Norway were picked to inquiry the wishes of the population of Eritrea as to the fate of their land.  United States initially opposed Ethiopian trusteeship over Eritrea  The Muslim nations were opposed to Ethiopian trusteeship over Eritrea  Italy was main opponent to Ethiopia's claim on Eritrea Zeila: Ethiopia entertained the idea of claiming a portion of Somalia, specifically to gain access to a sea port via Zeila this idea was entertained by Britan but fell through because France opposed it Italy: Promoted Eritrea gain independence, with the idea that it will be able to retain its influence Italy promoted the independence movement in Eritrea by providing financial support (213) Interesting facts: Emperor Menelik was the fifth husband for the Empress Taitu ...

Title: Designing Data-Intensive Applications Author: Martin Kleppmann Publication date: March 2017 Print length: 616 pages Chapter 1 Thinking About Data Systems There are datastores that are also used as message queues (Redis), and there are message queues with database-like durability guarantees (Apache Kafka). The boundaries between the databases, queues, caches, etc. are becoming blurred Increasingly many applications now have such demanding requirements that a single tool can no longer meet all of its data processing and storage needs. Instead, the work is broken down into tasks that can be performed efficiently on a single tool, and those different tools are stitched together using application code. If you are designing a data system or service, a lot of tricky questions arise. How do you ensure that the data remains correct and complete, even when things go wrong internally? How do you provide consistently good performance to clients, even when parts of your system are degrad...

Title: Building Microservices, 2nd Edition Author: Sam Newman Publication date: August 2021 Print length: 612 pages Chapter 1 Microservices are a type of service-oriented architecture.  Deployability is key for a microservices. to ensure independent deployability, we need to make sure our microservices are loosely coupled Having clear, stable service boundaries that don’t change when the internal implementation changes results in systems that have looser coupling and stronger cohesion. Model services around business domains it will make it easier to roll out new functionality and to recombine microservices in different ways to deliver new functionality microservices should be slices of business functionality that encapsulate user interface (UI), business logic, and data Microservices should avoid the use of shared databases if a microservice wants to access data held by another microservice, it should go and ask that second microservice for the data Microservice should be kept...