Is the heart of an operating system. It starts and stops programs, manages the file system, and performs other so called "low level" tasks that most programs need.

Consist of one or more processes that communicate with the operating system using system calls that are invoked through Application Programming Interfaces

Are small applications that connect specific hardware devices, like a printer of a network card, to the kernel.

Acronym of VxFS

Acronym of NTFS

Acronym of FAT

Acronym of UFS

Acronym of CLIs

Acronym of GUI

______________ also has a relational database manager built in as an integral part of the operating system. Features for the implementation and maintenance of data security are implemented natively as part of the operating system

In 1973, _________ was rewritten in the new C programming language (C was also created by Dennis Ritchie, together with Brian Kernighan). This made ______ portable to multiple types of computer hardware.

Extreme backward compatibility is one of _________ main design philosophies: programs written for MVS in 1974 can still run on today's _________ without modification.

Is a multi-user operating system designed for use in time sharing, batch processing, real-time processing, and transaction processing.

In 1991, Torvalds wanted to explore the multitasking possibilities of the new Intel 80386 CPU in his PC and decided to create a small multitasking, multi-user operating system himself with the help of the internet community.

10.0.4 Cheetah & 10.6.8 Snow Leopard

Froyo, Gignerbread, Honeycomb, and Ice Cream Sandwich

A ________________ is a group of independent servers running identical operating systems (known as “nodes”), that are connected via a network, and that are controlled by cluster software running on the nodes.

An examples of cluster software products is MC/Service Guard for _____________.

An examples of cluster software products is Parallel Sysplex for _____________.

An examples of cluster software products is Heartbeat and Pacemaker for _____________.

An examples of cluster software products is HACMP for _____________.

An examples of cluster software products is Windows Cluster Service for _____________.

A ___________________ is the single unit of failover within a cluster.

Also known as support packs or patch packs - are a collection of patches and hot-fixes that are packed together and can be installed in one deployment.

Are meant to fix low priority software bugs. Some regular patches fix multiple bugs at once.

Repair a bug or flaw in the operating system that needs to be fixed fast.

This template is then used to instantiate new operating systems ensuring security is optimal and is consistent in all deployments.

All operating system vendors (semi-)automatically provide small software updates called ___________for their operating systems when bugs or design flaws are fixed, security holes are closed or small improvements are made.

There is no way to calculate or extract the original password from the encrypted one; therefore, in early UNIX systems, everyone could read the password file with all encrypted passwords.

___________________ can have an impact on the performance of the operating system, so the __________________ must be configured to only scan high risk files and directories based on a risk analysis.

A __________________ is a software firewall that is installed as part of a running operating system in the infrastructure, protecting an individual host from unwanted network traffic.

The original laser printer called __________ was developed at the Xerox Palo Alto Research Center in 1971, based on Xerox copier technology

A ________________ is an office device which not only acts as a printer, but also as a scanner, a photocopier, and a fax machine. It typically provides centralized document management and production in an office setting.

A ____________is a specialized printer that draws vector graphics using a pen. They are mainly used in computer-aided design, for creating blueprints.

__________________ print quietly and fast. Since they are also small, light, and don’t consume much power, they are ideal for portable and retail applications like point of sale terminals and voucher printers.

Acronym of VDI

Acronym of PXE

_____________ is a third party dedicated datacenter where racks, floor space, and network bandwidth can be rented.

An ______________ is the foundation for cloud computing. It enables developers, DevOps teams and systems managers to create and deploy new infrastructures using either a manual self-service portal, or a combination of a build server and APIs.

_____________ is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction.

Cloud characteristics that a cloud is able to quickly scale-up and scale-down resources. When temporarily more processing power or storage is needed, for instance as a result of a high-exposure business marketing campaign, a cloud can scale-up very quickly on demand.

Cloud characteristics that there are no capital expenses, only operational expenses. This in contrast with the investments needed to build a traditional infrastructure.

Cloud characteristics that instead of providing each application with a fixed amount of processing power and storage, cloud computing provides applications with resources from a shared pool. This is typically implemented using virtualization technologies.

Cloud characteristics that a result of optimal automation and orchestration, minimal systems management effort is needed to deploy systems or applications in a cloud environment.

Cloud characteristics that capabilities are available over the network and accessed through standard mechanisms.

Cloud deployment models that is delivered by a cloud service provider, is accessible through the internet, and available to the general public. Because of their large customer base, public clouds largely benefit from economies of scale.

Cloud deployment models that a service or application is provided by a combination of a public cloud, and a community cloud and/or a private cloud. This enables running generic services (like email servers) in the public cloud while hosting specialized services (like a business specific application) in the private or community cloud.

Cloud deployment models that is operated solely for a single organization, whether managed internally or by a third-party, and hosted either on premises or external. It extensively uses virtualization and standardization to bring down systems management cost and staff.

Cloud service models that delivers (virtual) machines, networking, and storage.

Cloud service models that delivers full applications that can be used by business users, and need little or no configuration.

Cloud service models that delivers a scalable, high available, open programming platform that can be used by developers to build bespoke applications that run on the _________ platform.