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All Journal MANIFESTASI : Jurnal Pendidikan dan Pengajaran Jejak digital: Jurnal Ilmiah Multidisiplin
Rusmawati Rusmawati
Universitas Sulawesi Barat
Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Social Sciences Other

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Implementasi Protokol TCP/IP dalam Meningkatkan Efisiensi Transfer Data Satriani Satriani; Dewi Andriany; Rusmawati Rusmawati; Mima Mima; Masnur Masnur; Salwana S; Ketrin Rinayanti Manullang
Jejak digital: Jurnal Ilmiah Multidisiplin Vol. 2 No. 3 (2026): MEI 2026
Publisher : INDO PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/v0njge04

Abstract

The Transmission Control Protocol/Internet Protocol (TCP/IP) protocol is a crucial foundation for modern computer network communication interactions, enabling structured and reliable data transfer. This study aims to evaluate the application of TCP/IP to improve data delivery efficiency across a variety of network environments, including local area networks (LANs) and wide area networks (WANs). Through a systematic literature review and comparative analysis, this study investigates how TCP/IP works, the elements that influence transmission efficiency, and optimization methods that can be applied to improve network performance. The study's findings reveal that data delivery efficiency is significantly influenced by TCP window size settings, congestion control algorithms, and network infrastructure conditions. Proper TCP/IP implementation, including adjustments to parameters such as window size, can significantly reduce latency and dramatically increase throughput. The study also demonstrates that the choice between TCP and UDP should consider the nature of the application and data reliability requirements. The study's conclusions provide practical advice for network administrators and system developers on improving data delivery performance through efficient TCP/IP protocol configuration. These findings have a significant impact on the development of more efficient and responsive networks to meet today's data transmission demands
Pengenalan Struktur Data dan Perannya  dalam Pemrograman Satriani Satriani; Dewi Andriany; Rusmawati Rusmawati; Mima Mima; Masnur Masnur; Salwana S; Ketrin Rinayanti Manullang
Jejak digital: Jurnal Ilmiah Multidisiplin Vol. 2 No. 3 (2026): MEI 2026
Publisher : INDO PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/x1en1t53

Abstract

Data structures are one of the most important foundations of computer science, defining how information is stored, organized, and manipulated within a computing system. Without a proper understanding of data structures, a software developer will struggle to design efficient, scalable, and reliable systems. This article aims to provide a comprehensive overview of the fundamental concepts of data structures and their crucial role in modern programming practice. It covers various types of data structures—from linear structures such as arrays, linked lists, stacks, and queues to non-linear structures such as trees, graphs, and hash tables—and discusses criteria for selecting an appropriate data structure based on the problem context. The method used is a systematic literature review of relevant scientific publications, technical reports, and official documentation from 2026 onward. The results of the study indicate that selecting an appropriate data structure directly affects the time and space complexity of an algorithm, which ultimately impacts the overall performance of a software system. Furthermore, this article also identifies several gaps in the literature related to the teaching of data structures in academic settings, particularly in Indonesia. It is hoped that this article will serve as a useful academic reference for students, researchers, and practitioners in the fields of information technology and software engineering.
IMPLEMENTASI ACCESS CONTROL LIST (ACL) PADA ROUTER CISCO UNTUK PENGENDALIAN AKSES JARINGAN Rusmawati Rusmawati; Salwana Salwana; Nurhuda Nurhuda
Manifestasi: Jurnal Pendidikan dan Pengajaran Vol 6, No 2 (2026): JULI 2026
Publisher : Manifestasi: Jurnal Pendidikan dan Pengajaran

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Keamanan jaringan komputer merupakan bagian penting dalam mengelola infrastruktur teknologi informasi saat ini, terutama karena semakin banyaknya ancaman siber yang lebih rumit dan beragam. Daftar Kontrol Akses (ACL) adalah mekanisme dasar yang digunakan pada perangkat jaringan, terutama router Cisco, untuk mengatur aliran data sesuai dengan kebijakan keamanan yang sudah ditentukan. Penelitian ini bertujuan untuk meneliti secara rinci tentang konsep, jenis, serta cara penerapannya ACL pada router Cisco dalam rangka mengendalikan akses terhadap jaringan. Metode yang digunakan adalah penelitian eksperimental yang didasarkan pada simulasi jaringan, menggunakan perangkat lunak Cisco Packet Tracer, dengan skenario topologi jaringan yang mewakili lingkungan jaringan perusahaan berukuran menengah. Penelitian menunjukkan bahwa penggunaan ACL standar dan ACL yang diperluas dapat membatasi akses yang tidak diizinkan secara efektif, mengurangi lalu lintas yang tidak perlu, serta meningkatkan pengendalian terhadap kebijakan keamanan jaringan secara keseluruhan. Pengujian dilakukan dengan menguji berbagai skenario pemblokiran yang berbeda, yaitu berdasarkan alamat IP sumber, alamat IP tujuan, jenis protokol, serta nomor port layanan yang digunakan. Temuan penelitian ini menunjukkan bahwa pengaturan ACL yang benar dan teratur sangat membantu meningkatkan keamanan jaringan, tetapi tingkat keefektifannya sangat bergantung pada seberapa baik administrator memahami struktur jaringan dan cara menerapkan aturan tersebut. Penelitian ini diharapkan bisa menjadi bahan acuan nyata bagi para akademisi, praktisi jaringan, dan mahasiswa dalam memahami serta menerapkan ACL di lingkungan jaringan sehari-hari.
Co-Authors Dewi Andriany Ketrin Rinayanti Manullang Masnur Masnur Mima Mima Nurhuda Nurhuda Salwana S Salwana Salwana Satriani Satriani