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Network Articles
Page 34 of 66
Difference between SMTP and POP3
SMTP and POP3 are message protocols which are required for sending and receiving the messages between the mail servers. In this article, we are going to compare and contrast the various features of SMTP and POP3 based on the tasks for which these two protocols have been designed. What is SMTP? The Simple Mail Transfer Protocol (SMTP) is an Internet communication protocol for sending and receiving electronic mail. SMTP is used to transmit and receive mail messages by mail servers and other message transfer agents. User-level email clients usually utilize SMTP exclusively to transmit messages to a mail server for ...
Read MoreDifference between WiFi and Hotspot
Today, gaining access to the Internet does not need signing up for the data subscription plan offered by the Internet Service Provider (ISP). There are other available choices. The Internet can be accessed and shared in a variety of other ways, thanks to our smartphones.WiFi and hotspot are two terms that are sometimes used interchangeably to refer to connection to the Internet; however, there is a significant difference between the two. Hotspots are physical locations that are typically public places that are served by an access point that is used to connect devices to one another using WiFi. WiFi is ...
Read MoreWhat is LAN (Local Area Network) in Computer Network?
A local area network is a comparatively lesser and privately-owned network with the highest duration of 10km to support local connectivity within a building or limited geographical area.In private offices, this type of networking is trendy and effectively used. They are generally used to interface with personal computers and buildings, incorporate workplaces and industry to share resources and transfer data.The figure shows a LAN having computers from several departments like Sales, Finance, Production, Publication, etc.Features of LANLimited Geographic LimitsA LAN is constructed for a limited area. It usually traverses a single frequency workgroup floor in a building or on campus ...
Read MoreWhat are the advantages and disadvantages of Long Term Evolution (LTE) technology?
The Long Term evolution is one of the standards for high speed wireless communication for mobile devices and data terminals based on the GSM and HSPA technologies. It helps in increasing the capacity and speed by using a different radio interface with core network improvement.LTE is an upgrade path for carriers with both GSM/UMTS networks and CDMA 2000 networks. The LTE frequencies and bands used in different countries mean that only multi band phones are able to use LTE in all countries where it is supported.There are two types of LTE which are as follows −LTE-TDDLTE-FDDLong-Term Evolution time-division duplex also ...
Read MoreWhat is the difference between Computer Architecture and Computer Organization?
Computer ArchitectureThe architecture defines those attributes of the system apparent to the programmer or those attributes that directly force the program’s logical execution. It manage with the functional behavior of the computer system view by the user.Computer Architecture manages with the system’s programming part, including the multiple bits can define the several data types, input-output methods, approaches for addressing memory, and the computer’s instruction set. The implementation of any program is influenced by these qualities of architecture. The change in a bit or size can lead to a different result for the programmer.Computer OrganizationComputer organization can study the basic computer ...
Read MoreWhat is Myrinet Clos Network?
Myrinet is a high-performance, packet-communication, and switching technology. It was produced by Myricom as a high-performance alternative to conventional Ethernet networks. Myrinet switches are multiple-port components that route a packet entering on an input channel of a port to the output channel of the port selected by the packet.Myrinet switches have 4, 8, 12, 16 ports. For an n-port switch, the ports are addressed 0, 1, 2... n - 1. For any switching permutation, there may be as many packets traversing a switch concurrently as the switch has ports. These switches are implemented using two types of VLSI chips such ...
Read MoreWhat is Ethernet?
Ethernet is a packet-switched LAN technology introduced by Xerox PARC in the early 1970s. Ethernet was designed to be a shared bus technology where multiple hosts are connected to a shared communication medium. All hosts connected to an Ethernet receive every transmission, making it possible to broadcast a packet to all hosts at the same time.Ethernet uses a distributed access control scheme called Carrier Sense Multiple Access with Collision Detect (CSMA/CD). Multiple machines can access an Ethernet at the same time. Each machine senses whether a carrier wave is present to determine whether the network is idle before it sends ...
Read MoreWhat are Clusters?
A cluster is a collection of stand-alone computers connected using some interconnection network. Each node in a cluster could be a workstation, personal computer, or even a multiprocessor system.A node is an autonomous computer that may be engaged in its private activities while at the same time cooperating with other units in the context of some computational task. Each node has its input/output systems and its operating system.When all nodes in a cluster have the same architecture and run the same operating system, the cluster is called homogeneous, otherwise, it is heterogeneous. The interconnection network could be a fast LAN ...
Read MoreWhat is the Client-Server Framework for Parallel Applications in Computer Architecture?
Parallel applications can be designed using the client/server model. A client may divide a big application into several smaller problems that can be processed by multiple servers simultaneously. All the servers compute the solution to their respective problems and send their results to the client.The client assembles the results from each server and outputs the final result to the user. The client acts as the master (supervisor) while the servers act as the slaves (workers) in the master-slave (supervisor-workers) model as shown in the figure. The steps are taken at the client and each server is summarized as follows.Client (Supervisor)Client ...
Read MoreWhat are the routing potential problems in Computer Architecture?
Several possible problems can result from the use of certain routing mechanisms in message-passing systems. These include deadlock, livelock, and starvation, which are as follows −Deadlock − When two messages each hold the resources required by the other to move, both messages will be blocked. This is called a deadlock. It is a phenomenon that occurs whenever there exists a cyclic dependency on resources. Management of resources in a network is the responsibility of the flow control mechanism used. Resources must be allocated in a manner that avoids deadlock.Livelock − Livelock describes a situation in which a message keeps going ...
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