Quiz Evaluasi Komunikasi Data Kelas Xi Tkj Smkn 2 Purwodadi

UDP port number 53 is used for the Domain Name System (DNS) Name Query. DNS is a protocol that translates domain names into IP addresses, allowing users to access websites using human-readable names instead of numerical IP addresses. The DNS Name Query is responsible for sending queries to DNS servers to retrieve the IP address associated with a specific domain name.

Software softswitch is a tool used to connect circuit-switched networks with packet-switched networks, including fixed telephone networks (PSTN), IP-based internet, cable TV, and existing cellular networks. Softswitch is closely related to IP PBX.

PABX (Private Automatic Branch Exchange) is the correct answer because it is a device used for internal telephone communication within a building or organization without relying on a computer network. PABX systems allow for the routing of calls between different extensions within the same system, enabling efficient and cost-effective communication within an organization. IP PBX and SIP Phone are related to internet-based telephony, while VOIP (Voice over Internet Protocol) refers to the technology used for transmitting voice calls over the internet.

Phishing adalah istilah yang digunakan untuk menggambarkan tindakan pemalsuan terhadap data resmi dengan tujuan memanfaatkannya. Dalam phishing, pelaku akan mencoba untuk mendapatkan informasi sensitif seperti kata sandi, nomor kartu kredit, atau informasi pribadi lainnya dengan menyamar sebagai entitas tepercaya. Mereka sering menggunakan metode seperti mengirim email palsu atau membuat situs web palsu untuk memancing korban agar mengungkapkan informasi pribadi mereka. Dengan demikian, pemalsuan data resmi untuk keuntungan pribadi adalah definisi yang tepat untuk phishing.

Deface refers to the act of illegally modifying the appearance or content of a website. It involves unauthorized changes to the visual elements or layout of a website, often with the intention of spreading a message or causing harm. This can include replacing the original content with offensive or misleading information, or altering the design to display inappropriate images or messages. Defacing a website is considered a cybercrime and is a violation of the website owner's rights and the law.

The given options represent the main categories of attacks on a system, namely Interception, Modification, and Fabrication. The word "Coruption" is misspelled, and it is not a recognized category of attack. Therefore, the correct answer is "Coruption" as it does not belong to the main categories of attacks on a system.

Firewall adalah sebuah sistem yang dirancang untuk membatasi atau mengatur akses dari dan ke jaringan lokal. Ini berarti bahwa firewall bertindak sebagai penghalang yang melindungi jaringan lokal dari akses yang tidak sah atau tidak diinginkan dari luar. Firewall dapat memblokir lalu lintas yang mencurigakan atau berbahaya, dan juga dapat mengatur kebijakan akses yang memungkinkan atau melarang koneksi dari dan ke jaringan lokal. Dengan demikian, firewall membantu menjaga keamanan dan integritas jaringan lokal dari serangan atau ancaman yang mungkin datang dari luar.

PSTN stands for Public Switched Telephone Network. This is a telecommunications network that is used for transmitting phone calls and other communication services over traditional landline phones. It is a public network that is operated and maintained by telecommunications providers to ensure reliable and widespread telephone service for the general public.

IP Masquerade adalah proses menyamarkan alamat IP private dengan alamat IP yang dimiliki oleh kartu jaringan atau dengan alamat IP publik. Hal ini memungkinkan komputer dalam jaringan lokal untuk terkoneksi dengan internet. Dengan menyamarkan alamat IP private, komputer dalam jaringan lokal dapat terhubung ke internet tanpa mengungkapkan alamat IP asli mereka.

Firewalls are network security devices that monitor and control incoming and outgoing network traffic. They are designed to protect a network by blocking unauthorized access and preventing malicious activities. The given options describe various functions of a firewall. However, the function "Melakukan fragmentasi pada storage device" does not align with the typical role of a firewall. Fragmentation refers to the process of dividing data packets into smaller units for transmission. This function is not typically associated with firewalls but rather with network protocols and devices responsible for data transmission and reassembly.

UDP (User Datagram Protocol) adalah salah satu protokol lapisan transport pada model referensi TCP/IP yang mendukung komunikasi yang tidak andal (unreliable), tanpa koneksi (connectionless) antara host-host dalam jaringan yang menggunakan TCP/IP. UDP tidak menjamin pengiriman data yang sukses atau dalam urutan yang benar, namun memberikan kecepatan yang lebih tinggi dan overhead yang lebih rendah dibandingkan dengan protokol TCP. UDP sering digunakan untuk aplikasi yang membutuhkan transfer data yang cepat, seperti video streaming atau game online, di mana kehilangan beberapa paket data tidak akan berdampak besar pada pengalaman pengguna.

Proxy Firewalls bekerja pada layer OSI di lapis Aplikasi. Proxy firewall adalah jenis firewall yang berfungsi sebagai perantara antara pengguna dan server yang sedang diakses. Proxy firewall dapat memeriksa dan memfilter semua data yang melewati lapisan aplikasi, seperti protokol HTTP, FTP, atau SMTP. Dengan demikian, proxy firewall dapat menerapkan kebijakan keamanan yang lebih ketat dan melindungi jaringan dari serangan yang ditujukan ke lapisan aplikasi.

The correct answer is "Aplication server, feature server, media gateway, signaling gateway, media server, operating support system, media access, perangkat akses." This answer lists the 8 main architectures of a Softswitch, which include application server, feature server, media gateway, signaling gateway, media server, operating support system, media access, and access devices.

The correct answer is the list of features "Konfigurasi Trunk, Konfigurasi Outbound Routes, Konfigurasi Video Call". These features refer to the configuration settings for trunk lines, outbound routes, and video calls in a softswitch system. Trunk configuration allows the setup and management of communication channels between the softswitch and other networks. Outbound route configuration enables the routing of outgoing calls to specific destinations. Video call configuration allows the setup and management of video calling capabilities within the softswitch system.

The correct answer is BOOTP klien (Dynamic Host Configuration Protocol [DHCP]). The UDP port number 67 is used by the DHCP protocol for communication between DHCP clients and DHCP servers. DHCP is responsible for dynamically assigning IP addresses and other network configuration parameters to devices on a network.

The correct answer is "Session Initial Protocol". SIP stands for Session Initial Protocol, which is a signaling protocol used for initiating, modifying, and terminating real-time sessions involving video, voice, messaging, and other communications applications and services. It is commonly used in Voice over IP (VoIP) and Internet telephony systems to establish and control multimedia communication sessions.

The correct answer is Media Gateway Controller (MGC) because it is often referred to as a call agent in a sofswitch.

The given answer is "Forwarding". The softswitch device is responsible for ensuring the quality of service, and it must meet certain limits for parameters such as One Way Delay, Information Loss, and Echo Cancellation. However, "Forwarding" is not a parameter related to quality of service, but rather a function of the softswitch device. Therefore, it is not necessary for the softswitch device to guarantee a certain limit for forwarding.

IP PBX adalah sistem telepon yang menggunakan jaringan data IP untuk menyediakan panggilan telepon. Dalam sistem ini, semua percakapan dikirim sebagai paket data melalui jaringan. IP PBX berfungsi sebagai pemusatan telepon di suatu lokasi seperti kantor, gedung, atau perumahan.

The given answer explains that DDoS (Distributed Denial of Service) is a type of attack where a computer or server in an internet network is overwhelmed with a high volume of traffic, depleting its resources and causing it to malfunction. This attack indirectly prevents other users from accessing services provided by the targeted computer.

Proxy firewalls are designed to filter and control the content that users can access. They act as an intermediary between the user and the internet, intercepting requests and filtering out malicious or inappropriate content. By blocking executable file downloads and pornography websites, proxy firewalls help prevent the spread of malware and protect users from accessing inappropriate or harmful content. This makes them an effective tool for ensuring network security and protecting users from potential threats.

SIP stands for Session Initiation Protocol. It is an application-level protocol that is used to create, control, and terminate sessions in an IP-based network. These sessions can be two-way telephone communications or multimedia conference collaborations. SIP is responsible for establishing and managing communication sessions between users, allowing them to initiate and terminate voice and video calls, as well as other forms of real-time communication.

PABX telephone refers to a device that functions as a telephone exchange, allowing for the centralization of telephone calls within a specific location such as an office, building, or residential area. This device manages incoming calls and forwards them to their intended destinations, enabling users to easily make calls by pressing the corresponding extension or home number. The given answer accurately describes the purpose and functionality of a PABX telephone system.

Spoofing refers to the technique used to gain unauthorized access to a computer or information, where the attacker pretends to be a trusted host in order to deceive the user. This involves providing false information about the IP address of a host, redirecting the traffic of data packets from their actual destination. Spoofing is a form of attack that aims to deceive users and gain unauthorized access to sensitive information or systems.

The given options are commands used in the Session Initiation Protocol (SIP). "Good" is not a valid command in SIP, so it is the correct answer.