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What are virtual LANs and how do they function?

Question: What are virtual LANs and how do they function? Answer: Virtual LANs, as the name indicates, are software-defined groups of localarea network nodes. These nodes are comprised of workstations,

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Turn-around time for answers from the Web Pro

Question: I submitted a question last week about a problem I was having concerning the correct display of link colors on my home page. How long does it usually take

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How to run a HTML program

Question: I have written code in HTML to create my personal home page. How do I execute it? Answer: HTML is not a programming language, so it will not execute.

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Creating a report/file of info about each LAN user

Question: I’ve inherited responsibility for a NetWare 3.11 LAN with 200+ users. How can I create a report/file that will provide me detailed information regarding each user, which groups he/she

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What is the anatomy of an IP datagram?

Question: What is the anatomy of an IP datagram? Answer: The minimum length of the IP header is 20 bytes.Version:Four bits are reserved for the IP version information. We are

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OSPF — Open Shortest Path First

Question: OSPF — Open Shortest Path First — the mechanism behind this link state routing protocol Answer: OSPF is an IP routing protocol. It is registered with the Network Information

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Linking LANs/workgroups together

Question: What is the simplest way to physically link two separate local networks comprised of an NT 4.0 server, individual demarcation point and hub, and 1 Mac OS Server Network,

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Integer input

Question: What’s the best way to read in an integer fromthe keyboard for further use? Answer: You can probably find numerous examples of this by browsing through theJava section here

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DELETE FROM With a Subquery

Question: How can I delete all data from a table using a join?For example, the SELECT statement would be: SELECT * FROM Master AS A, Detail AS B WHERE A.price

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Java:java.lang.ClassFormatError

Question: What does it mean when I receive the Java:java.lang.ClassFormatError?I get it whenever I try to implement a ready-made Javaapplication onto my Web site. Answer: The ClassFormatError is thrown whenever

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Which browsers support the JDK1.1 or JDK1.1.1?

Question: I want to run my applet on a browser, but I do notknow which versions of the following browsers cansupport programs made by JDK1.1 or JDK1.1.1. 1. Netscape: Which

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Saving RichTextBox as Plain Text

Question: How can I output straight ASCII text from the Rich Text Box control, and NOT Rich text? Answer: The SaveFile method of the RichTextBox control can be called with

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Logging users’ e-mail addresses

Question: Is there a way to log my users’ e-mail addresses using Java? I thought of using a mailto form but the user would have to press a button, making

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Basic Java Syntax

Question: Here’s some basic Java syntax, with explanations: Answer: OBJECTS, CLASSES and INSTANCESA Java object is a container that holds variables and functions (Java programmers call functions “methods”). Since (references

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Which are the VRML 2.0 compatible browsers?

Question: Can you just bring me up to date on which are the VRML 2.0 compatible browsers? Answer: Oz’s Oz Virtual Sony’s Community Place InterVista’s WorldView RealSpace’s RealVR Traveler Newfire’s

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Careers in SQL

Question: Having programmed in Dbase III Plus and FoxPro for Windows, I have enjoyed working with databases. Do you feel that SQL would be the next logical choice as far

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Delphi

Question: What’s the diference between SDI and MDI Applications? Answer: An SDI, or single document interface,application has a single, floating menu bar. Each form in the applicationhas its own window,

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OPO Performance

Question: I am having a hard time getting my OPO application to show decent performance. It’s running on a 32MB Win3.1 PC, and queries a Solaris x86 Oracle Server using

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ODBC/Oracle Lite tables

Question: In OPO v1.0, it was impossible to redefine a table in a BLAZE database. I assumed this would not be the case with an Oracle Lite database and OPO

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Loading Text file into Oracle Lite Table

Question: Is it possible to use the text ODBC driver in OPO v2.0 for this purpose by opening two sessions — one connected to an Olite database while the other