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Articles by Ginni
Page 10 of 124
What is SLIP in the Computer Network?
SLIP stands for Serial Line Internet Protocol. SLIP is an Internet protocol that allows users to gain Internet access using a computer modem. Today, SLIP is not used as frequently as its successor, PPP (Point-to-Point Protocol), which provides enhanced error detection and automatic configuration. SLIP is commonly used on dedicated serial links and sometimes for dialup purposes and is usually used with line speeds between 1200bps and 19.2Kbps. It is useful for allowing mixes of hosts and routers to communicate with one another (host-host, host-router and router-router are all common SLIP network configurations). SLIP defines a sequence of ...
Read MoreWhat is SCTP in the Computer Network?
Stream Control Transmission Protocol (SCTP) is a reliable, message-oriented transport layer protocol designed to address the limitations of both TCP and UDP. SCTP was developed specifically for Internet applications that require reliable data transmission while maintaining message boundaries. SCTP is particularly well-suited for modern applications such as IUA (ISDN over IP), M2UA and M3UA (telephony signaling), H.248 (media gateway control), H.323 (IP telephony), and SIP (Session Initiation Protocol). These applications benefit from SCTP's unique combination of reliability and message preservation. SCTP: Best of Both TCP and UDP ...
Read MoreWhat is the difference between the keylogger and the Remote Access Trojans?
Let us begin by understanding the key differences between keyloggers and Remote Access Trojans (RATs), two distinct types of malicious software with different capabilities and objectives. Keylogger A keylogger is a technology that tracks and records consecutive keystrokes on a keyboard. Because sensitive data including usernames and passwords are often entered through keyboards, keyloggers can be extremely dangerous security threats. There are several types of keyloggers based on different monitoring methods: Software keyloggers − Can be built into rootkits or other less detectable forms and can infiltrate computers through various methods Hardware ...
Read MoreWhat is Session Layer in the Computer Network?
The Session Layer is the fifth layer in the OSI model and one of the upper layers that provide user-oriented services. It sits between the Presentation Layer and Transport Layer, managing communication sessions between applications on different devices. The session layer provides a defined set of services to the presentation layer and controls the structure and interaction between application programs. It synchronizes communication, manages the direction of information flow, and handles session establishment, maintenance, and termination. The service definition and protocol specifications are defined in ISO 8326 and ISO 8327. Session Layer in OSI ...
Read MoreExplain the functions of Session Layer.
The session layer is the fifth layer in the OSI model that manages communication sessions between applications on different devices. It acts as a general-purpose toolkit providing various services for establishing, maintaining, and terminating connections between communicating users. The session layer ensures reliable data exchange by managing sessions — logical connections that allow applications to communicate effectively. It handles dialog control, synchronization, and error recovery to maintain consistent communication states. Session Layer Functions Session Setup Dialog Control Synchronization ...
Read MoreWhat is the difference between Encryption and Cryptography?
Let us begin by learning about encryption and cryptography, two fundamental concepts in information security that are often confused but serve distinct purposes. Encryption Encryption is the process of converting plain text (readable data) into ciphertext (unreadable data) using mathematical algorithms and keys. This transformation ensures that only authorized persons with the correct decryption key can access the original information. Encryption operates by applying sophisticated algorithms that scramble the original data, making it unreadable to unauthorized users. A decryption key is required to revert the ciphertext back to its readable format. Encryption is particularly effective for protecting ...
Read MoreWhat is the difference between Software Security and Cyber Security?
Understanding the difference between software security and cyber security is crucial as these terms are often used interchangeably but have distinct scopes and focus areas. Software Security Software security focuses on protecting software applications from vulnerabilities, malicious attacks, and design flaws that could compromise their functionality or data integrity. It involves building secure code and implementing protective measures during the software development lifecycle. Software security addresses threats such as buffer overflow, stack overflow, command injection, and SQL injection attacks that exploit vulnerabilities in application code. These attacks can lead to data theft, system monitoring, unauthorized access, or ...
Read MoreExplain the functions of Presentation Layer.
The Presentation Layer is the sixth layer of the OSI model, responsible for data formatting, encryption, and compression. It acts as a translator between the application layer and the session layer, ensuring that data from one system can be understood by another system regardless of their internal data representations. Presentation Layer Functions Application Layer Presentation Layer Data Translation Session Layer ...
Read MoreWhat is the difference between DWDM and OTN?
Let us begin by understanding what DWDM is and how it differs from OTN technology. DWDM Dense Wavelength Division Multiplexing (DWDM) is an optical multiplexing technology that combines multiple optical signals of different wavelengths (colors) into a single optical fiber, dramatically increasing bandwidth capacity over existing fiber infrastructure. DWDM works by transmitting multiple laser signals simultaneously at different wavelengths on the same fiber. Each wavelength acts as a separate communication channel, effectively creating multiple "virtual fibers" over one physical fiber. Modern DWDM systems can support up to 80 channels with 100 GHz (0.8 nm) spacing between wavelengths. ...
Read MoreWhat are the FTP Connections?
File Transfer Protocol (FTP) uses two separate connections to facilitate communication between client and server. Understanding these connections is crucial for comprehending how FTP operates efficiently for file transfers. Control Connection The control connection is established first and remains active throughout the entire FTP session. This connection handles all commands and responses between the client and server. The establishment process involves two steps: The server issues a passive open on the well-known port 21 and waits for a client connection. The client uses an ephemeral port and issues an active open to ...
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