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All Journal Register: Jurnal Ilmiah Teknologi Sistem Informasi Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) JOURNAL OF APPLIED INFORMATICS AND COMPUTING Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Journal of Business and Audit Information System (JBASE) Insyst : Journal of Intelligent System and Computation Madiun Spoor : Jurnal Pengabdian Masyarakat Journal Of Informatics And Busisnes BERBAKTI: Jurnal Pengabdian Kepada Masyarakat
Agus Wijayanto
Universitas Mulia
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Social Sciences Other

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Journal : journal of applied informatics and computing

 1 
Virtual Local Area Network for Optimizing Network Performance using Simplified Form of Action Research Abdillah, Muhammad Fahmi; Wijayanto, Agus; Pamungkas, Wisnu Hera
Journal of Applied Informatics and Computing Vol. 9 No. 4 (2025): August 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i4.10141

Abstract

Virtual Local Area Network (VLAN) is an effective solution for improving network performance and efficiency in educational environments, particularly in computer laboratories. This study aims to implement and evaluate VLAN at the Computer Laboratory of Universitas Mulia using a simplified action research approach involving a single intervention cycle. The initial diagnosis revealed that the conventional flat network topology resulted in a broad broadcast domain and reduced performance under high traffic conditions. Through VLAN segmentation, the laboratory was logically divided into five segments based on functionality. Evaluation was conducted using throughput measurement and Quality of Service (QoS) indicators, including packet loss, delay, and jitter, based on TIPHON standards. The results indicated consistent improvements in data flow and stability, with reduced packet loss under 0,3% and average delay and jitter remaining below 20 ms across all segments. In addition to technical improvements, interviews with the network administrator highlighted significant benefits in bandwidth management and traffic control during examinations. This study demonstrates that a simplified approach can be replicated in similar educational institutions with limited resources and provides a foundation for more structured and controlled network development.
Evaluation of Information Security Readiness Level Using the Integration of KAMI Index 5.0 and ISO/IEC 27001:2022 Nasya Ananda Rozi; Agus Wijayanto; Wahyu Nur Alimyaningtias
Journal of Applied Informatics and Computing Vol. 10 No. 4 (2026): August 2026
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v10i4.13451

Abstract

Information security is a strategic aspect that determines the continuity of organizational operations amid an increasing dependence on digital systems. PT. QAZ, as a regionally owned business entity providing clean water services, relies on information systems to support customer management, payment systems, and distribution network management, so evaluating the readiness of its information security is crucial. This study aims to measure the level of information security readiness of PT. QAZ through the integration of the KAMI Index 5.0 with ISO/IEC 27001:2022 control using a mixed methods approach. The results of the evaluation of the Electronic Systems Category obtained a score of 19 points with a high category, while the accumulation of the sixth score in the evaluation area reached 372 out of a maximum total of 918 points, with the achievement of the supplement category of 26%. In detail, the maturity level of each domain is: Level I+ Information Security Governance, Level II Risk Management, Level I Information Security Management Framework, Level I+ Information Asset Management, Level II Information Technology and Security, and Level I Personal Data Protection.
Co-Authors Abdillah, Muhammad Fahmi Abiyu Dzaki Agustian, Anugrah Tri Ahmad Yazid Bustomi Alif Rizky Saputra Alimyaningtias, Wahyu Nur Aljosa Maynardian Andini, Aulia Andriani, Salis Annisa, Qhaerun Aqilah Aulya Maulidah Arif, Ratna Azzahra Noor Istiqomah Barus, Lidiya Anggreny Br Desvita Triasasa Maharani Dhafid Omar Dicky Pratama Candra Dicky Satrio Ikhsan Utomo Djumhadi Djumhadi, Djumhadi Djumhadi, Djumhadi Elvina, Amanda ENDRI ENDRI Fadhillah, Alfan Qais Fadillah, Muhammad Febri Nuraini, Putri Ghina Nur Madina Imam Riadi Indriani, Lita Juvent Alessandro Patuden Malik Endrianove Mario Sahrul Ramadhani Rahman Muhammad Fahmi Abdillah Nasrul Nasya Ananda Rozi Nugraha, Yudhisthira Arya Pramesty, Natasha Purnama, Wahyu Aji Purnama, Wahyu Aji Rahmadini, Nadia Putri Servanda, Yustian Sudinugraha, Tri Sutariya, Muhammad Faridan syaddam, syaddam Tri Sudinugraha Wahyu Nur Alimyaningtias Wardhana, Muhammad Irfan Wisnu Hera Pamungkas, Wisnu Hera Wulan, Nadia Agustin Nawang Yosita, Disna Yudi prayudi Yumna Nuhashofa, Salma Daarin Yustian Servanda Yustian Servanda, Yustian Zabrina, Rana