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Planning and design of web-based application for students' knowledge verification
Meixner, Jaroslav ; Jelínek, Mojmír (referee) ; Molnár, Karol (advisor)
The aim of my bachelor thesis is proposal and realization of system with web interface which automatizes student’s testing using randomly generated quizes. The generation of unique quiz with mutually mixed set of questions and answers for every student is very important condition. This set consists of several correct or incorrect answers. System Moodle was chosen for creation of quizes. This system goes on open source platform and it is possible extentend and modificate if some changes are necessary. System Moodle is corrected properly according to requirements and its correct behaviour was verified in subject Practical exercises in information networks
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Evaluation of the Financial Situation of a Company and Proposals for Improvements
Jelínek, Marek ; Hornungová, Jana (referee) ; Poláček, Tomáš (advisor)
The aim of this bachelor thesis will be to use selected methods of financial analysis to evaluate the current level of the financial situation of the company for the period between 2016-2019. This work examines, estimates, and evaluates the current financial health of the company, strengths, and weaknesses, and based on the data and data proposed measures to improve the financial situation in the company In the theoretical part of this diploma thesis, data, procedures, and the overall theoretical approach to financial analysis will be clarified and approached. In the second, practical part, the work is devoted to a specific company, in this case, Pohankový mlýn Šmajstrla s.r.o and based on accounting documents and financial analysis procedures of this company, there will be an assessment of the current financial situation of the company, its strengths, and weaknesses. At the end of this work will be presented own proposals to improve the financial health and situation of the company.
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Establishment of the graphic interface for firewall using Qt4 framework
Štefany, Martin ; Jelínek, Mojmír (referee) ; Matocha, Tomáš (advisor)
The aim of this thesis is to design an application, which will serve as a~graphical interface to the terminal application iptables. iptables is an application which uses the Netfilter framework for managing firewall in operating system GNU/Linux. Graphical interface is a~way how to raise a~comfort of firewall configuration and management, because user doesn't have to remember all of the commands and graphical interface also shows him actual structure and contents of the firewall in a~tree view. Thesis describes format and options of the commands and also the firewall structure and its function in Linux. Designed application is written in C++ language using aspects of object oriented programming and uses Qt4 framework. Qt4 is a~great framework for creating graphical user interfaces, brings a~lot of new classes and methods and extends programmer's possibilities during designing graphical or terminal applications for lots of platforms. Thesis also includes a~manual to designed graphical interface, to the application qIPtables, which user can use to learn the basics of using this application and firewall management.
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Virtual environment by Xen software
Kulíř, Tomáš ; Kouřil, Jiří (referee) ; Jelínek, Mojmír (advisor)
This bachelor thesis, which is called the virtual environment by Xen software, deals with the operating system GNU / Linux and its distributions. It also deals with the virtualization on the server or desktop computer, in particular, describes in detail the Xen environment, including all of its options and the most forgotten server services. In the first chapter is analyzed the concept of GNU / Linux. First, there is documented history. Another section deals with a brief overview of the most commonly occurring distributions. The main part of this chapter is primarily devoted to a specific distribution Debian. There is described not only the history and development of this distribution, but also more packaging system is analyzed there. The last part of this chapter is devoted to the installation options with a detailed description of the whole process step by step. Second and the most important chapter is devoted to virtual environments. Once again, there is first described their history, the possibility of practical use and the types of virtualization are also indicated there. Reader will find there a brief analysis of the most commonly used virtualization systems. The third chapter detailed deals with the Xen technology. There is not only explained the principle on which the virtualization is built, but the main part of this chapter focuses on the practical use and a summary of basic functions. The next section describes the installation and administration of hypervisor including previous preparation. A very important point is also creation of the virtual machines and their control, their migration to another physical hardware or a description of the installation of other operating systems than Linux. Fourth, shorter chapter deals with a listing and a brief description of server services. The final chapter consists of a summary of problems or complications, which in the course of this work occurred.
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The AmBe Laboratory Neutron Source Field Determination Using Experimental Stend
Jelínek, Martin ; Šťastný, Ondřej (referee) ; Katovský, Karel (advisor)
This master’s thesis provides a comprehensive overview of the conventional neutron sources from the perspective of reactions which lead to the production of neutrons, advantages, disadvantages, properties and their possible utilization. In the relation to the assembly of the laboratory neutron source and the unique experimental stand “Candle” basic methods of the neutron field analysis are outlined and two of them, the neutron activation analysis and the calculation using the MCNP software code are discussed in depth to apply and compare these methods. The experimental part deals with the realization of neutron activation analysis from its design itself, through gamma spectrometry to the cadmium ratio calculation. In compliance with the measurements, a calculation with MCNP code was run and both methods were evaluated and compared. The computation is complemented with the analysis of radiation situation on the borders of the supervised area, which is compared to the legal limit.
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Suggestion of a Company Communication Mix
Sombergová, Markéta ; Jelínek, Martin (referee) ; Kaňovská, Lucie (advisor)
The diploma thesis focuses on problems associated with the suggestion of the communication mix of the Fitness centre „Kameňák“. It includes evaluation of the current state of company´s communication mix and revelation of problems in this field. Afterwards the thesis contains suggestions for improvement of this state. The diploma thesis is divided into three parts. The first part contains theoretical knowledge of the subject, the second part is focused on analysis of the company´s current state and the main content of the third part is suggestion of such a communication mix that can help the company present better its services and brings more customers.
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Security of wireless computer networks
Jelínek, Martin ; Pelka, Tomáš (referee) ; Doležel, Radek (advisor)
The master's thesis deals with the issue of Wireless Local Area Network (WLAN) from the viewpoint of the security and functional principle of security mechanisms. The transition to the issue concerning the security is accompanied by the methods of wireless data transmission operating on the level of physical layer (FHSS, DSSS, OFDM, MIMO), which is followed by the summary of individual 802.11 standards. The next part deals with the issue of shared transmission medium (CSMA/CA), influence of interference and correcting mechanisms (RTS/CTS). Within the security, the principles of the authentication along with the commonly used methods of security (WEP, WPA, WPA2) are described in detail. The first part concerning security deals with the security in the form of the WEP protocol, which is considered insufficient nowadays and points out the imperfect implementation and the consequent risks. The following part describes the security in the form of WPA which eliminates the implementation weaknesses of the previous WEP security protocol. The description of commonly used mechanisms of authentication (PSK, 802.1x), required temporary key management (PTK, GTK), data integrity (MIC) and encryption which uses TKIP protocol are also included. The last part, possible WLAN security, is aimed at the full support of 802.11i standard, which is called WPA2 (sometimes RSN). That part describes the basic encryption security element CCMP, which is based on the AES block cipher modes. The practical part of the thesis deals with the security verification of current wireless networks. In the process of verification the accessible HW means and programming tools of Open Source Software (OSS) are used. By means of verification it has been pointed out that there are possible security risks resulting from the security method which has been used. Also several recommendations how to reduce the security risks of the used method to minimum are mentioned.
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Software Support of Enterprise Processes
Jelínek, Marek ; Šebela, Jiří (referee) ; Videcká, Zdeňka (advisor)
The subject of this thesis is primarily design methodology for planning and traffic management. It is based on the real needs of company CAD Blansko and analyzing company processes and capture their support in the corporate ERP system. Next pat is detailed analysis focusing on dispatching of passenger transport. Based on the findings and conclusions of this section are outlined deficiencies, especially the need for a methodology for resource planning and specifications of that methology. To which is directly connected with the extensive design of the required design methodology and its software support, change is taken into account current business processes. It is also recommended procedure of the implementation methodology using appropriate project management tools. The final part is testing of methodology.
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