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One of the latest and most sophisticated home automation systems is the Smart House Although the term smart house sometimes is used to refer to a wide variety or a combination of home automation systems, it s actually a brand name for a unique system of automating a home The Smart House integrates a unique wiring system and computer-chip language to allow all the televisions, telephones, heating systems, security systems, and appliances in a home to communicate with each other and to work together If your customer s refrigerator door has been left open, for instance, the Smart House could signal their television set to show a picture of a refrigerator in the corner of the screen until the door is closed A smoke detector in the Smart House could signal your heating system to shut down during a fire Its communication ability is one of the most important differences between the Smart House and all other home automation systems The basic installation cost of a Smart House system is about the same as that of a power-line system, but with a Smart House system, you also may need to purchase special appliances How the Smart House System Works To understand how Smart House technology works, it s important to realize that the technology was the result of a joint effort among many appliance manufacturers, security system manufacturers, and home building and electronics trade associations All of them agreed on standards that allow special appliances and devices to work in any Smart House A Smart House uses a system controller, instead of a fuse panel, and Smart blocks, instead of standard electrical outlets Appliances designed to work in a Smart House are called Smart appliances and all of them can be plugged into any Smart block The same Smart block into which you plug your television, for instance, can be used for your telephone or coffee pot When a Smart appliance is plugged into a Smart block, the system controller receives a code to release power, and it coordinates communication between that appliance and the other Smart appliances A big difference between standard electrical outlets and Smart blocks is this: electricity is always present in the standard outlets If you were to stick a metal pin into one of your standard outlets, you would get an electric shock If you were to stick a pin into a Smart block, you wouldn t get shocked because no electricity would be present Only a device that has a special computer-chip code can signal the Smart House system controller to release electricity to a particular Smart block unless you override the signal.

9 What makes an XML document valid Select two answers A That the XML document only uses elements from the XML standard B That the XML document is parsed successfully with a schema or DTD attached C That the XML document meets the six rules for XML D That the XML document meets the golden XML rule 10 What is the result when the following XML document is parsed

< xml version="10" > <towns> <town> <name>Mimico</town> </town> <town> <name>Whitby</town> </name> </towns>

A It will parse successfully B An XmlException will be thrown C An Exception will be thrown D A syntax error will be reported 11 11 Given the following code segment, what will happen if the call to docLoad(reader) throws an XmlException

With a Smart House, you have the option of programming any or all of the Smart blocks to override their need for a code Such an option enables you to use standard appliances in your Smart blocks, in much the same way you use your electrical outlets now Standard appliances can t communicate with each other or with Smart appliances You might want to override a Smart block if some of your appliances aren t Smart appliances Because the Smart House is a new technology, few Smart appliances are available If the technology becomes more widely used, the demand for Smart appliances will increase

try { ConsoleWriteLine("\nXML file: {0} is validating", xmlFile); reader = new XmlValidatingReader(new XmlTextReader(xmlFile)); readerValidationType = ValidationTypeDTD; // register the delegate for the event readerValidationEventHandler += new ValidationEventHandler (thisValHand); ConsoleWriteLine("Validating using DTD"); XmlDataDocument doc = new XmlDataDocument(); docLoad(reader); // Line with XmlException } catch (Exception e) { ConsoleWriteLine("Exception: {0}", eToString()); } catch (XmlException e) { ConsoleWriteLine("XmlException: {0}", eToString()); }

A The line "XmlException: " is printed to the console B The line "Exception: " is printed to the console C The program will terminate with a general failure D The program will continue without any extra output

12 What is the correct way of creating a DataTable in a DataSet Select all that apply Each answer constitutes one part of the answer A DataTable dtOrders = new DataTable("Orders"); B DataTable dtOrders = DataTable("Orders"); C DataTable dtOrders; D dsTablesAdd("Orders"); 13 Where do you add Constraint objects A To the Constraint collection of the DataTable object B To the Constraint collection of the DataColumns object C To the Constraint collection of the DataSet object D To the Constraint collection of the DataRelation object 14 When you build the schema of a DataSet, you need to model the data types of the data that will reside in the DataColumn objects What data type would you use to represent a date A date B day C SystemDateTime D variant 15 True or False HTML must be well formed to be used with XML A True B False