LANs are privately owned and span a smaller geographical area (restricted to a few kilometers). It can be used in various settings, including offices, residences, hospitals, and schools. The setup and management of a LAN is quite straightforward. Just like a traditional wired LAN in which the connected devices transmit data over Ethernet cables, whereas in a WLAN, the connected devices transmit data through Wi-Fi. Mobile users can connect to a WLAN through wireless connection. The IEEE 802.11 group of standards describe the technologies for LANs. Go through this article to find out more about LAN and WLAN ... Read More

TesterA Software tester performs testing on the software to ensure that it meets the required quality standards. A Tester is responsible to check if the software has bugs/defects and performs as what is required from it. A software tester is unaware of application code and its development process.SDETSDET stands for Software Development Engineer in Test. SDET is part of both development as well as software testing. A SDET knows the code of software. A SDET is a tester who can code as well.Following are the important differences between Tester and SDET.Sr. No.KeyTesterSDET1WorkingSoftware Tester tests the application once it is testing ... Read More

ISO9000ISO9000 is an international standard of quality management and quality assurance. It certifies the companies that they are documenting the quality system elements which are needed to run a efficient and quality system.SEI-CMMSEI (Software Engineering Institute) - Capability Maturity Model (CMM) is specifically for software organizations to certify them at which level, they are following and maintaining the quality standards.Following are the important differences between ISO9000 and SEI-CMM.Sr. No.KeyISO9000SEI-CMM.1DefinitionISO9000 is an international standard of quality management and quality assurance. It certifies the companies that they are documenting the quality system elements which are needed to run a efficient and quality ... Read More

EIGRP stands for Enhanced Interior Gateway Routing Protocol. It is used to share information between routers lying in the same region. It can be easily implemented in small as well as large networks.OSPF stands for Open Shortest Path first. It is used on variable-length subnet masking (VLSM) and discontinuous networks. It is a classless routing protocol.Read through this article to find out more about EIGRP and OSPF and how these two protocols are different from each other.What is EIGRP?EIGRP is an advanced distance-vector routing protocol for automating routing decisions and configuration on a computer network. Cisco Systems designed the protocol ... Read More

Bandwidth and Throughput are frequently used terms in telecommunications and sometimes we tend to use them as synonyms, but there's a subtle difference between these two terms.Bandwidth refers to the data capacity of a channel. It is defined as the total amount of data which can be transferred over a network in a specific period of time. Throughput, on the other hand, refers to the exact measurement of data transferred in a specific time period. It is also termed as "effective data rate" or "payload rate". Every network connection has a throughput, which explains how bits are transmitted across a ... Read More

Centralized Version ControlCentralized Version Control is a version control system using server/client model and server contains all the history of source code.Distributed Version ControlDistributed Version Control is a version control where each client can have same copy of source code as server has and both server and client maintain history of source code.Following are the important difference between Centralized Version Control and Distributed Version Control.Sr. No.KeyCentralized Version ControlDistributed Version Control1WorkingIn CVS, a client need to get local copy of source from server, do the changes and commit those changes to centeral source on server.In DVS, each client can have a ... Read More

The terms web browser and web server are very common in the field of computer science and Internet, however people often get confused between the two. The most basic difference between a web browser and a web server is that a web browser is an application software which is used to browse and display webpages available over the Internet, whereas a web server is a software hosted on a dedicated computer which provides these documents when requested by web browsers. Read through this article to know more about web browsers and web servers and how they are different from each ... Read More

Both RDBMS and HBase, both are database management systems. RDBMS uses tables to represent data and their relationships. HBase is a column-oriented dbms and it works on top of Hadoop Distributed File System (HDFS).Following are the important differences between RDBMS and HBase.Sr. No.KeyRDBMSHBase1DefinitionRDBMS stands for Relational DataBase Management System.HBase has no full form.2SQLRDBMS requires SQL, Structured Query Language.HBase does not need SQL.3SchemaRDBMS has a fixed schema.HBase has no fixed schema.4OrientationRDBMS is row oriented.HBase is column oriented.5ScalablityRDBMS faces problems in scalablity.HBase is highly scalable.6NatureDBMS is static in nature.HBase is dynamic in nature.7Data RetrievalRDBMS data retrieval is slow.HBase data retrieval is fast.8RULERDBMS ... Read More

RDBMS and OODBMS are database management systems. RDBMS uses tables to represent data and their relationships whereas OODBMS represents data in form of objects similar to Object Oriented Programming.Following are the important differences between RDBMS and OODBMS.Sr. No.KeyRDBMSOODBMS1DefinitionRDBMS stands for Relational DataBase Management System.OODBMS stands for Object Oriented DataBase Management System.2Data ManagementData is stored as entities defined in tabular format.Data is stored as objects.3Data ComplexityRDBMS handles simple data.OODBMS handles large and complex data.4TermAn entity refers to collection of similar items having same definition.An class refers to group of objects having common relationships, behaviors and properties.5Data HandlingRDBMS handles only data.OODBMS handles ... Read More

Both Bluetooth and ZigBee are wireless technologies that are widely used to send and receive data wirelessly using radio signals. Bluetooth is a wireless technology that is used to connect devices in short range, whereas ZigBee is wireless technology standard for personal area networks that uses low-power digital radio waves.Go through this article to find out more about the features of Bluetooth and ZigBee and how they are different from each other.What is Bluetooth?Bluetooth was created under the IEEE 802.15.1 standard, which is used for wireless communication via radio transmissions. Bluetooth was first introduced in 1994 as a wireless replacement ... Read More