Web Dev certification sample questions

[spiskulaspiskula]

Hi

I was looking at sample questions posted by Esri on the web dev certification path:

http://training.esri.com/Courses/CertSample_EWDA101/player.cfm

I find it difficult to understand why is answer B actually not correct

I had a look at the suggested references to documentation and it does seem that botf for Feature Service and Feature Service Layer it is possible to delete features using the applyEdits operation:

For feature service:

http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#//02r3000000nv000000

says:

• Required Capability:Create,Update,Delete. Create required to add features, Update required to update features, and Delete required to delete features."

Also later down the page attached sampel shows how to delete features:

{
  "id" : 1,
  "deletes" : [
  34,44
  ]
  }

For feature service layer:

http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#//02r3000000r6000000

"This operation adds, updates, and deletes features to the associated feature layer or table in a single call...." - OK

How should this question be interpreted?

Comments on this please!