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Jyotishmaan's Questions & Answers

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What is load testing?

Asked by rushi in Computers & Technology at 1:24 PM on November 17, 2007

Jyotishmaan's Answer

Load testing is the process of creating demand on a system or device and measuring its response. Load testing generally refers to the practice of modeling the expected usage of a software program by simulating multiple users accessing the program's services concurrently. As such, this testing is most relevant for multi-user systems, often one built using a client/server model, such as web servers. However, other types of software systems can be load-tested also. For example, a word processor or graphics editor can be forced to read an extremely large document; or a financial package can be forced to generate a report based on several years' worth of data. The most accurate load testing occurs with actual, rather than theoretical, results.

Answered at 4:47 AM on November 18, 2007

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What is Performance testing?

Asked by rushi in Computers & Technology at 1:24 PM on November 17, 2007

Jyotishmaan's Answer

Performance testing is testing that is performed to determine how fast some aspect of a system performs under a particular workload. Performance testing can serve different purposes. It can demonstrate that the system meets performance criteria. It can compare two systems to find which performs better. Or it can measure what parts of the system or workload cause the system to perform badly.

Answered at 4:45 AM on November 18, 2007

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What is the OSI model? How many layers are present in the OSI model?

Asked by rushi in Computers & Technology at 1:04 PM on November 17, 2007

Jyotishmaan's Answer

OSI or Open System Interconnection Model is a paradigm established by the International Standards Organization (ISO) for communications worldwide. It divides the networking process into seven logical layers, starting at the cable and interface card level and ascending to the operating system level. The layers are: Physical; Data Link; Network; Transport; Session; Presentation; and Application.

Answered at 4:44 AM on November 18, 2007

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What is Traffic?

Asked by cool in Computers & Technology at 7:32 AM on November 17, 2007

Jyotishmaan's Answer

The load on a communications device or system. One of the principal jobs of a system administrator is to monitor traffic levels and take appropriate actions when traffic becomes heavy.

Answered at 4:40 AM on November 18, 2007

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What is Trinitron?

Asked by cool in Computers & Technology at 7:32 AM on November 17, 2007

Jyotishmaan's Answer

rinitron is arguably the best consumer CRT (Cathode Ray Tube) technology available. The technology was developed by Sony Corporation, who owns complete rights to it.

Answered at 4:41 AM on November 18, 2007

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What is Thick Client?

Asked by cool in Computers & Technology at 7:32 AM on November 17, 2007

Jyotishmaan's Answer

Thick clients, also called heavy clients, are full-featured computers that are connected to a network. Unlike thin clients, which lack hard drives and other features, thick clients are functional whether they are connected to a network or not. While a thick client is fully functional without a network connection, it is only a "client" when it is connected to a server. The server may provide the thick client with programs and files that are not stored on the local machine's hard drive. It is not uncommon for workplaces to provide thick clients to their employees. This enables them to access files on a local server or use the computers offline. When a thick client is disconnected from the network, it is often referred to as a workstation.

Answered at 4:43 AM on November 18, 2007

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What is Toolbar?

Asked by cool in Computers & Technology at 7:31 AM on November 17, 2007

Jyotishmaan's Answer

A series of selectable buttons in a GUI that give the user an easy way to select desktop, application or Web browser functions. Toolbars are typically displayed as either a horizontal row or a vertical column around the edges of the GUI where they are visible while the application is in use. Most applications use toolbars as they give the user another option aside from pull-down menus.

Answered at 4:37 AM on November 18, 2007

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What is Token?

Asked by cool in Computers & Technology at 7:31 AM on November 17, 2007

Jyotishmaan's Answer

. In networking, a token refers to a series of bits that circulate on a token-ring network. When one of the systems on the network has the "token," it can send information to the other computers. Since there is only one token for each token-ring network, only one computer at a time can send data. 2. In programming, a token is a single element of a programming language. Some examples of programming tokens are reserved words, punctuation marks, and operators (i.e. +,-,*,/). 3. In security systems, a token is small card that displays an ID code which can be used to log into a network. The card user enters a password which causes the card to display the current ID needed to log into the network. The token adds an extra security level to the network because the IDs change every five minutes or so.

Answered at 4:36 AM on November 18, 2007

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What is Toslink?

Asked by cool in Computers & Technology at 7:31 AM on November 17, 2007

Jyotishmaan's Answer

TOSLINK is a standardized optical fiber connection system. Its most common use is in consumer audio equipment (via a "digital optical" socket), where it carries a digital audio stream between components such as MiniDisc and CD players and DAT recorders. TOSLINK may use inexpensive 1 mm plastic optical fiber or it can use higher quality multi-strand plastic optical fibers or even quartz glass optical fibers depending on the desired bandwidth and application.

Answered at 4:39 AM on November 18, 2007

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What is TLD?

Asked by cool in Computers & Technology at 7:31 AM on November 17, 2007

Jyotishmaan's Answer

Short for top-level domain, and refers to the suffix attached to Internet domain names. There are a limited number of predefined suffixes, and each one represent a top-level domain. Current top-level domains include: # com - commercial businesses; this is the most common TLD # gov - U.S. government agencies # edu - Educational institutions such as universities # org - Organizations (mostly nonprofit) # mil - Military # net - Network organizations # ca - Canada # th - Thailand

Answered at 4:34 AM on November 18, 2007

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