ISML Templates and Controllers B2C-COMMERCE-DEVELOPER Practice Questions (Page 4)

Questions 16–19

1. 16foundation · easy

   What is the primary purpose of an ISML module?

   • ATo store static assets like images and stylesheets.
   • BTo define a controller that handles dynamic content rendering.
   • CTo provide a way to include content from a different site.
   • DTo encapsulate reusable template fragments that can be included in multiple templates.
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2. 17application · medium

   A B2C Commerce developer is building an AJAX endpoint that returns product availability information as JSON. The endpoint receives a product ID as a query parameter, looks up the product, and returns its availability status. The developer has written the following controller code: ```javascript var server = require('server'); var ProductMgr = require('dw/catalog/ProductMgr'); server.get('Availability', function (req, res, next) { var productID = req.querystring.pid; var product = ProductMgr.getProduct(productID); var availability = product.availabilityModel; res.json({ productID: productID, inStock: availability.inStock }); next(); }); module.exports = server.exports(); ``` What is the correct way to ensure this endpoint returns JSON instead of attempting to render a template?

   • AUse `res.json()` as shown in the code.
   • BUse `res.render()` with a JSON template.
   • CUse `response.writer.print()` to output the JSON string manually.
   • DUse `res.setViewData()` and then call `next()` without rendering.
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4. 18application · medium

   A B2C Commerce developer is building a product detail page that must display a list of related products. The related products are determined by a recommendation engine that requires server-side logic to fetch the data. The developer wants to render this list as a reusable component on the page. Which approach should the developer use?

   • ACreate a template named relatedProducts.isml and include it with <isinclude template="relatedProducts"/> on the product detail page.
   • BCreate a script that fetches the related products and use <isscript> in the template to call it.
   • CCreate a module named relatedProducts and reference it with <ismodule template="relatedProducts"/> on the product detail page.
   • DCreate a controller endpoint that fetches the related products and renders a template, then reference it with <isinclude url="${URLUtils.url('Product-RelatedProducts')}"/>.
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5. 19foundation · easy

   Which method is used to render JSON output from a JavaScript controller?

   • Aresponse.json()
   • Bresponse.redirect()
   • Cresponse.renderTemplate()
   • Dresponse.renderJson()
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