Posts Tagged: CompTIA

Remote Desktop Protocol (RDP) RDP is a Microsoft-designed technology that allows two computers to share a GUI using a network connection. RDP is a proprietary technology initially built by Microsoft that allows two computers to exchange a graphical user interface (GUI) using a standardized network connection. This article explains the meaning of RDP, how it… Read more »

Multi-Protocol Label Switching (MPLS) MPLS – short for Multi-Protocol Label Switching – is a now-aging network routing system that transfers data between nodes using labels that denote predetermined pathways instead of network addresses that refer to the nodes themselves. This article explains how MPLS works, its types, and the core architecture.  What Is MPLS (Multi-Protocol… Read more »

Load Balancing Load Balancing Definition: Load balancing is the process of distributing network traffic across multiple servers. This ensures no single server bears too much demand. By spreading the work evenly, load balancing improves application responsiveness. It also increases availability of applications and websites for users. Modern applications cannot run without load balancers. Over time, load… Read more »

IMAP Protocol IMAP stands for Internet Message Access Protocol. It is an application layer protocol which is used to receive the emails from the mail server. It is the most commonly used protocols like POP3 for retrieving the emails. It also follows the client/server model. On one side, we have an IMAP client, which is a… Read more »

HTTP The Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems. This is the foundation for data communication for the World Wide Web (i.e. internet) since 1990. HTTP is a generic and stateless protocol which can be used for other purposes as well using extensions of its request methods, error… Read more »

File Transfer Protocol (FTP) The full form of FTP is File Transfer Protocol. It is a standard internet protocol provided by TCP/IP which is used for transmitting the files from one system to another system. The main purpose of FTP is for transferring the web page files from one system to the computer which acts… Read more »

Difference between Private and Public IP addresses What is an IP Address? An IP address (Internet Protocol address) is a numerical identifier, such as 192.0.2.1, that is associated with a computer network that communicates using the Internet Protocol. An IP address is used for two purposes: identifying a host or network interface, and addressing a… Read more »

How to prepare for CompTIA Network + Job? Questions Answers 1. What are the different layers of the OSI model, and can you explain each one? The OSI model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. Each layer is responsible for specific functions in network communication. 2. What is subnetting,… Read more »

Server Message Block Protocol (SMB) The Server Message Block (SMB) Protocol is a Microsoft Windows protocol that allows users to share files, printers, and serial ports across a network. SMBv2 is the most recent version released with Windows Vista and has undergone more revisions under Windows 7. The IBM-developed Server Message Block protocol is a… Read more »

What is VPN in Computer Network? VPN stands for Virtual Private Network. It allows you to connect your computer to a private network, creating an encrypted connection that masks your IP address to securely share data and surf the web, protecting your identity online. A virtual private network, or VPN, is an encrypted connection over the… Read more »

Single Mode vs. Multimode Fiber Optic Cables Many decisions come into play when installing fiber optic cabling.  By far, one of the most important questions is whether to install single mode or multimode.  This decision has huge implications for your network’s distance, bandwidth, and budget, so it’s vital to understand the differences between these two… Read more »

Network Time Protocol (NTP) NTP is an internet protocol that’s used to synchronize the clocks on computer networks to within a few milliseconds of universal coordinated time (UTC). It enables devices to request and receive UTC from a server that, in turn, receives precise time from an atomic clock. What Is NTP? “A man with… Read more »

Distinguish between Connection-Oriented and Connectionless Service Connection-Oriented Services In a connection-oriented service, each packet is related to a source/destination connection. These packets are routed along a similar path, known as a virtual circuit. Thus, it provides an end-to-end connection to the client for reliable data transfer. It delivers information in order without duplication or missing… Read more »

Simple Network Management Protocol (SNMP) SNMP stands for Simple Network Management Protocol. It is an Internet-standard protocol for handling devices on IP networks. Devices that typically provide SNMP include routers, switches, servers, workstations, printers, modem racks, and more. It is used mainly in the network management framework to monitor network-attached computers for conditions requiring regulatory attention…. Read more »

Dynamic Host Configuration Protocol (DHCP) Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway. In DHCP, port number 67 is used for the server and 68 is used for the… Read more »

CompTIA NET+ | Generic Routing Encapsulation (GRE) Generic Routing Encapsulation (GRE) is a routing protocol developed by Cisco Systems in 1994 that allows a wide range of network-layer protocols to be contained inside virtual point-to-point or point-to multipoint links over an Internet Protocol network. Protocol encapsulation, not GRE specifically, breaks the layering sequence, according to… Read more »