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Estimating the reliability of the elements of cloud services

100%
IGNATOVA I., BIEHUN A. V.
Operations Research and Decisions
|
2017
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vol. 27
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issue 3
65-80
EN
Cloud technologies are a very considerable area that influence IT infrastructure, network services and applications. Research has highlighted difficulties in the functioning of cloud infrastructure. For instance, if a server is subjected to malicious attacks or a force majeure causes a failure in the cloud’s service, it is required to determine the time that it takes the system to return to being fully functional after the crash. This will determine the technological and financial risks faced by the owner and end users of cloud services. Therefore, to solve the problem of determining the expected time before service is resumed after a failure, we propose to apply Markovian queuing systems, specifically a model of a multi-channel queuing system with Poisson input flow and denial-of-service (breakdown).
2
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Korzystanie z usług Google w kształceniu przyszłych nauczycieli przedmiotów przyrodniczych

51%
Romanyshyna O., Gura A.
Annales Universitatis Mariae Curie-Skłodowska, sectio J – Paedagogia-Psychologia
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2019
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vol. 32
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issue 1
EN
Modern computer achievements in scientifi activity give access to common use of data from a great number of information repositories. The materials of the article are dedicated to defining the pedagogical possibilities of using Google services in training of future teachers of natural specialties. The article highlights the results of the assessment of the real state of educational activity of teachers and students with the use of modern information and communication technologies (hereinafter referred to as ICT). The article analyzes the learning objectives and widely used services, which enable active introduction of ICT in the process of conducting lectures and practical classes, while preparing for self-study and testing.
PL
Dzięki nowoczesnym osiągnięciom informatycznym w działalności naukowej możliwy jest coraz szerszy dostęp do danych z wielu repozytoriów informacji. Celem artykułu jest określenie pedagogicznych możliwości korzystania z usług Google w kształceniu przyszłych nauczycieli przedmiotów przyrodniczych. W pracy badawczej podkreślono wyniki oceny rzeczywistego stanu aktywności edukacyjnej nauczycieli i uczniów z wykorzystaniem nowoczesnych technologii informacyjno-komunikacyjnych (ICT). W pracy przeanalizowano cele nauczania i szeroko stosowane usługi, które umożliwiają aktywne wprowadzanie ICT do procesu prowadzenia wykładów i zajęć praktycznych, przygotowując się do samokształcenia i testowania.
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