PERFORMA MIKRO SERVER PADA STUDI KASUS SISTEM CBT (COMPUTER BASED TEST) DI JARINGAN LAN (LOCAL AREA NETWORK)

2020 ◽  
Vol 10 (3) ◽  
pp. 172-176
Author(s):  
Arda Editya ◽  
Neny Kurniati
Keyword(s):  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Network Testing ◽  
Testing Tools ◽  
Computer Based ◽  
Simple Network

Performa sebuah server saat ini menjadi salah satu kunci untuk menilai apakah sebuah servis yang bergerak dibidang aplikasi digital termasuk baik atau tidak. Salah satu servis yang sering digunakan pada saat ini adalah sistem ujian online atau yang lebih dikenal dengan istilah CBT (Computer Based Test). Dimana pada servis ini membutuhkan performa server yang mumpuni untuk melayani siswa dalam mellihat soal dan juga mengoreksi jawaban siswa secara realtime. Permasalahan yang ada saat ini adalah para penyelenggara CBT seperti sekolah, institusi pendidikan dan lain sebgainya belum memiliki patokan server yang efisien dalam menentukan spesifikasi server yang sesuai dengan kebutuhan. Terlebih lagi teknologi mikro server saat ini yang banyak dikembangkan di luar negeri memberikan sebuah kesempatan untuk menerapkan servis ujian online ini lebih marak dan dapat digunakan untuk masyarakat Indonesia secara luas. Pada penelitian kali ini server akan diuji menggunakan metode pengujian yang bertumpu pada 2 bidang besar yakni sumber daya server dan juga jaringan komputer. Dimana untuk sumber daya server kali ini kita akan melihat bagaimana penggunaan sumber daya mikro server saat menjalankan servis ujian online/ CBT. Berikutnya adalah pengujian dari sisi jaringan komputer dimana pada sisi jaringan komputer disini kita menggunakan metode simple network testing tools dan melihat bagaimana aktifitas jaringan komputer yang berjalan pada mikro server saat menjalankan servis ujian online/ CBT. Hasil yang dapat ditarik dari metode pengujian yang telah dilakukan adalah dari sisi sumber daya server adalah penggunaan prosesor lebih dominan digunakan daripada penggunaan RAM pada mikros server hal ini dibuktikan dengan rata-rata pengujian didapatkan hasil penggunaan prosesor adalah 55,5% dari 100% sedangkan penggunaan RAM adalah 35,7% dari 100% hal ini dikarenakan prosesor memproses jawaban yang telah dikirim oleh siswa dan dilanjutkan pada proses input pada database yang ada pada server, sedangkan RAM berfungsi sebagai menyimpan beberapa komponen web yang akan ditampilkan pada client dimana semakin besar file yang digunakan pada sistem CBT juga akan mempengaruhi berapa besar RAM yang akan digunakan. Dari sisi jaringan komputer didapatkan hasil pengujian ping menuju server memiliki rata-rata keberhasilan mengantarkan paket 95% dan memiliki rata-rata kegagalan mengantarkan paket 5% hal ini diakibatkan oleh keterbatasan perangkat jaringan komputer khususnya perangkat jaringan wifi yang memiliki keterbatasan dalam memproses paket yang keluar dan masuk. Berdasarkan penelitian diatas dapat disimpulkan bahwa penggunaan mikro server pada sistem ujian online/CBT dengan jumlah 35-40 siswa dapat digunakan secara lancar. Sehingga dengan hasil ini maka sekolah yang ingin menerapkan sistem ujian online dapat memanfaatkan mikro server sebagai alternatif pengganti server yang mahal. Terlebih lagi penggunaan mikro server dapat menghemat dari sisi biaya pembelian dan juga biaya listrik dikarenakan mikro server memiliki spesifikasi yang rendah dan juga penggunaan listrik yang sangat kecil dan memungkinkan dapat menggunakan baterai.

scholarly journals PROTOTIPE APLIKASI UJIAN CODING PHP BERBASIS WEB INTRANET DI STMIK ATMA LUHUR

2019 ◽  
Vol 5 (1) ◽  
pp. 73-80
Author(s):  
Yohanes Setiawan Japriadi ◽  
Lukas Tommy
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
System Development ◽  
Unified Modeling Language ◽  
Local Area ◽  
Area Network ◽  
Web Based ◽  
Computer Laboratory ◽  
Unified Modeling ◽  
Computer Based

Modernization causes the examination process in some educational institutions that are usually done conventionally now start to change to CBT (Computer Based Test). At STMIK Atma Luhur, CBT in the form of a coding test carried out on a computer laboratory was felt to be not effective enough due to a short correction time, as well as the possibility of lossing the students work due to sudden power failure. Collection of jobs using an LAN (Local Area Network) intranet network can not be realized due to the difficult network configuration and requires not a small cost. One solution that can be offered in overcoming the above problem is to create a web-based exam application that is connected to a Wireless Local Area Network (WLAN) intranet network. The system development model and tools used in this study are prototype models and UML (Unified Modeling Language). The proposed application is effective in facilitating and accelerating the process of collecting student answer files from several client computers to a server computer. In addition, the usage of the proposed application allows the lecturer not to correct students' answers in a hurry, so that the scores that are truly objective and can be accounted for are obtained.

Research on Encryption Algorithm Conforming to AES in WLAN

2012 ◽  
Vol 532-533 ◽  
pp. 1517-1521
Author(s):  
Jia Li ◽  
Li Gan ◽  
Fang Fang Du
Keyword(s):  
Wireless Local Area Network ◽  
Computer Network ◽  
Local Area Network ◽  
Transmission Rate ◽  
Local Area ◽  
Encryption Algorithm ◽  
Area Network ◽  
Security Problem ◽  
Aes Encryption Algorithm ◽  
Simple Network

As the daughter of modern wireless communication technology & computer network technology, Wireless Local Area Network(WLAN) is being used widely in many areas. It is well known that WLAN has the advantages such as simple network configuration, high transmission rate, good extensibility and mobility, and convenience to carry, etc. However, its security mechanism is not perfect to guarantee its security because of some design flaws in safety precautions. The application of AES in WLAN improves its data confidentiality. The work presented in this paper focuses on present AES encryption algorithm security problem and optimization of its S Box. The improved algorithm this paper put forward in WLAN, is proved to be efficient.

scholarly journals Computer Based Test Untuk Seleksi Masuk Politeknik Negeri Bengkalis

2017 ◽  
Vol 8 (2) ◽  
pp. 114-124
Author(s):  
Agus Tedyyana ◽  
Danuri Danuri
Keyword(s):  
System Analysis ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Markup Language ◽  
Client Server ◽  
Computer Based ◽  
Entity Relationship ◽  
Entity Relationship Diagram ◽  
Hypertext Markup Language

Abstrak- Penyeleksian calon mahasiswa baru dapat dilakukan dengan aplikasi Computer Based Test (CBT). Metode yang digunakan meliputi teknik pengumpulan data, analisis sistem, model perancangan, implementasi dan pengujian. Penelitian ini menghasilkan aplikasi CBT dimana soal yang dimunculkan dari bank soal melalui proses pengacakan dengan tidak akan memunculkan soal yang sama dengan menggunakan metoda Fisher-Yates Shuffle. Dalam proses pengamanan informasi soal saat terhubung ke jaringan maka diperlukan teknik untuk penyandian pesan agar soal tersebut sebeum dimunculkan melewati proses enkripsi dan deskripsi data terlebih dahulu maka digunakan algoritma kriptografi RSA. Metode perancangan perangkat lunak menggunakan model waterfall, perancangan database menggunakan entity relationship diagram, perancangan antarmuka menggunakan hypertext markup language (HTML) Cascading Style Sheet (CSS) dan jQuery serta diimplementasikan berbasis web dengan menggunakan bahasa pemrograman PHP dan database MySQL, Arsitektur jaringan yang digunakan aplikasi Computer Based Test adalah model jaringan client-server dengan jaringan Local Area Network (LAN). Kata kunci: Computer Based Test, Fisher-Yates Shuffle, Criptography, Local Area Network Abstract- Selection of new student candidates can be done with Computer Based Test (CBT) application. The methods used include data collection techniques, system analysis, design model, implementation and testing. This study produces a CBT application where the questions raised from the question bank through randomization process will not bring up the same problem using the Fisher-Yates Shuffle method. In the process of securing information about the problem when connected to the network it is necessary techniques for encoding the message so that the problem before appear through the process of encryption and description of data first then used RSA cryptography algorithm. Software design method using waterfall model, database design using entity relationship diagram, interface design using hypertext markup language (HTML) Cascading Style Sheet (CSS) and jQuery and implemented web-based using PHP programming language and MySQL database, Network architecture used application Computer Based Test is a client-server network model with a Local Area Network (LAN) network. Keywords: Computer Based Test, Fisher-Yates Shuffle, Criptography, Local Area Network

scholarly journals Design and Development of Virtual Local Area Network and Securing Network using Network Address Translation

2019 ◽  
Vol 8 (4S2) ◽  
pp. 425-429
Keyword(s):  
Local Area Network ◽  
Local Area ◽  
Automated System ◽  
Area Network ◽  
Internet Service ◽  
Ip Address ◽  
Access Control List ◽  
Address Translation ◽  
A Company ◽  
Simple Network

To develop and implement a Virtual Local Area Network by using sub-netting and to find the optimized IP depended on host number. When a company purchases web hosting from Internet Service Provide they will purchase several static addresses. As a result an automated system to store the information about assigned IP address and solve the problem. The main objective is to develop and discuss about the various Internet Service Provider (ISP) and securing the network by using Network Address Translator (NAT) and Access Control list (ACL). Static routes or a direct connection to the destination network i.e. a router might be running both an Open Shortest Path First version 3 (OSPFv3) process and a Routing Information Protocol (RIP) process. If the OSPF protocol is advertised to optimize the routes by RIP protocol, it is said to be redistributing RIP. The detailed information about the Dynamic protocols such as RIP, OSPFv3, EIGRP etc.., its standards, functionality and internetworking issues in the networking domain are observed and troubleshoot the problems in the internetwork connectivity using the CISCO routers and end devices and hence to design a simple network with tool with multiple routing protocols in IPv6 domain and redistribute for end-to-end communication.

Metrics for the Evaluation of Test-Delivery Systems

2011 ◽  
pp. 2542-2545
Author(s):  
Salvatore Valenti
Keyword(s):  
Student Learning ◽  
World Wide ◽  
Local Area Network ◽  
Local Area ◽  
Computer Assisted ◽  
Area Network ◽  
Course Content ◽  
Test Management ◽  
Computer Based ◽  
Software Group

Most solutions to the problem of delivering course content supporting both student learning and assessment nowadays imply the use of computers, thanks to the continuous advances of information technology. According to Bull (1999), using computers to perform assessment is more contentious than using them to deliver content and to support student learning. In many papers, the terms computer-assisted assessment (CAA) and computer-based assessment (CBA) are often used interchangeably and somewhat inconsistently. The former refers to the use of computers in assessment. The term encompasses the uses of computers to deliver, mark, and analyze assignments or examinations. It also includes the collation and analysis of data gathered from optical mark readers. The latter (that will be used in this paper) addresses the use of computers for the entire process, including assessment delivery and feedback provision (Charman & Elmes, 1998). A typical CBA system is composed of the following. • Test-Management System (TMS) - that is, a tool providing the instructor with an easy-to-use interface, the ability to create questions and to assemble them into tests, and the possibility of grading the tests and making some statistical evaluations of the results • Test-Delivery System (TDS) - that is, a tool for the delivery of tests to the students. The tool may be used to deliver tests using paper and pencil, or a stand-alone computer on a LAN (local area network) or over the Web. The TDS may be augmented with a Web enabler used to deliver the tests over the Internet. In many cases, producers distribute two different versions of the same TDS: one to deliver tests either on single computers or on a LAN and the other to deliver tests over the WWW (World Wide Web). This is the policy adopted, for instance, by Cogent Computing Co. (2004) with CQuest LAN and CQuest Net. The TMS and TDS modules may be integrated in a single application as, for instance, Perception developed by Question Mark Computing (2004), or may be delivered as separate applications as it occurs for MicroTest and MicroGrade developed by Chariot Software Group (2004).

Strathnet—a local area network

1981 ◽  
Vol 1 (1) ◽  
pp. 21 ◽  
Author(s):  
David Hutchison ◽  
Doug Shepherd
Keyword(s):  
Local Area Network ◽  
Local Area ◽  
Area Network

A Local Area Network for Medical Research; Planning, Realization and Experience

1991 ◽  
Vol 30 (01) ◽  
pp. 53-64 ◽  
Author(s):  
R. Schosser ◽  
C. Weiss ◽  
K. Messmer
Keyword(s):  
Medical Research ◽  
Word Processing ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Test Installation ◽  
Cost Performance ◽  
The Public ◽  
On Line ◽  
The University

This report focusses on the planning and realization of an interdisciplinary local area network (LAN) for medical research at the University of Heidelberg. After a detailed requirements analysis, several networks were evaluated by means of a test installation, and a cost-performance analysis was carried out. At present, the LAN connects 45 (IBM-compatible) PCs, several heterogeneous mainframes (IBM, DEC and Siemens) and provides access to the public X.25 network and to wide-area networks for research (EARN, BITNET). The network supports application software that is frequently needed in medical research (word processing, statistics, graphics, literature databases and services, etc.). Compliance with existing “official” (e.g., IEEE 802.3) and “de facto” standards (e.g., PostScript) was considered to be extremely important for the selection of both hardware and software. Customized programs were developed to improve access control, user interface and on-line help. Wide acceptance of the LAN was achieved through extensive education and maintenance facilities, e.g., teaching courses, customized manuals and a hotline service. Since requirements of clinical routine differ substantially from medical research needs, two separate networks (with a gateway in between) are proposed as a solution to optimally satisfy the users’ demands.

Link-Level Simulator for Wireless local Area Network

2018 ◽  
Vol 6 (7) ◽  
pp. 314
Author(s):  
Chaithra. H. U ◽  
Vani H.R
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area Networks ◽  
Local Area ◽  
Long Term Evolution ◽  
Wireless Local Area Networks ◽  
Area Network ◽  
Network Simulator ◽  
Term Evolution

Now a days in Wireless Local Area Networks (WLANs) used in different fields because its well-suited simulator and higher flexibility. The concept of WLAN  with  advanced 5th Generation technologies, related to a Internet-of-Thing (IOT). In this project, representing the Network Simulator (NS-2) used linked-level simulators for Wireless Local Area Networks and still utilized IEEE 802.11g/n/ac with advanced IEEE 802.11ah/af technology. Realization of the whole Wireless Local Area Networking linked-level simulators inspired by the recognized Vienna Long Term Evolution- simulators. As a outcome, this is achieved to link together that simulator to detailed performances of Wireless Local Area Networking with Long Term Evolution, operated in the similar RF bands. From the advanced 5th Generation support cellular networking, such explore is main because different coexistences scenario can arise linking wireless communicating system to the ISM and UHF bands.

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