UpWork (oDesk) & Elance JSON Test Question & Answers

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Ques : Which of the following properties form part of the response to a JSON-RPC method invocation?
Ans  : result + error + id

Ques :  Which of the following methods is/are provided by JSONRequest?
Ans  : get + cancel

Ques : Which of the following parameters can be passed in the JSONRequest.get request?
Ans  : url + done

Ques : Which of the following is/are true with regard to JSONRequest?
Ans  :  It is a two way data interchange between any page and any server + It accumulates random delays before acting on new requests when previous requests have failed.

Ques : Which of the following properties are contained in the request for a JSON-RPC method invocation?
Ans  :  method+ params

Ques : Which of the following statements is/are not correct about the JSON-RPC?
Ans  :  It wraps an object, allowing you to call methods on that object and get the return values. + It allows for bidirectional communication between the service and the client.

Ques : Which of the following parameters can be passed in the JSONRequest.post request?
Ans  :  done+ send

Ques : Which of the following statements is/are true about modules with reference to JSON?
Ans  : Modules cannot have negative CSS margins + The CSS display property of a module must be static.

Ques : Which of the following is a valid JSONPath expression?
Ans  :  $.store.book[0].title

Ques : Which of the following JSONPath elements represents the root object/element?
Ans  : $

Ques : Which of the following parameter values cannot be serialized in JSONRequest?
Ans  : send

Ques : Which of the following correctly describes the term tuple typing in JSON Schema?
Ans  : It provides an enumeration of possible values that are valid for the instance property. It should be an array, and each item in the array should represent a possible value for the instance value.

Ques : Which of the following statements is correct about JSON?
Ans  :  It is a lightweight data interchange format.

Ques : What is the significance of the arrow before the following code in JSON?
--> { "method": "echo", "params": ["Hello JSON-RPC"], "id": 1}
Ans  : It shows the data sent to the service.

Ques : In order to find the authors of all the books in the store, which of the JSONPath codes will you use?
Ans  :  $.store.book[*].author

Ques : What will be the output of the code shown above?
Ans  : OpenDoc 3

Ques : In order to find the price of everything in the store, which of the JSONPath codes will you use?
Ans  : $.store..price

Ques : Which of the following statements correctly describes the following syntax?

{"state":{optional:true},"town":{"required":"state",optional:true}}
Ans  : An instance includes a state property and a town property which is optional.

Ques : Which of the following elements of JSONPath can be used to apply the filter(script) expression?
Ans  : ?()

Ques : State whether true or false.

JSONRequest allows the connection when the Content-Type in both directions is an application/jsonrequest.
Ans  : True

Ques : JSON does not allow you to create an empty object.
Ans  : False

Ques : Which of the following correctly describes the disallow property of the JSON Schema?
Ans  : This attribute may take the same values as the "type" attribute.

Ques : Which of the following correctly describes the function of the JSON.stringify method in JSON?
Ans  :  It converts a JavaScript object into a JSON string.

Ques :  Which of the following properties should be declared first in order to define a schema from an instance?
Ans  :  $schema

Ques : Which of the following schema properties takes schema as value in JSON?
Ans  : extends

Ques : While using JSONRequest.cancel, what will happen to the request if it is still in the outgoing message queue?
Ans  : It will be deleted from the queue.

Ques : What does the [start:end:step] element of JSONPath signify?
Ans  : it represents an array slice operator.

Ques :  Which of the following schema properties does not need to be validated by JSON validators?
Ans  : enum

Ques : Which of the following schema properties always has a unique value for all its instances in JSON?
Ans  : identity

Ques : Which of the following features of JSON has the property of exemption from the same origin policy?
Ans  : JSONRequest

Ques : In the above code snippet, what is the purpose of declaring the JSONRequest.post?
Ans  :  It will queue the request and return the request number.

Ques : Which of the following serialization formats is/are supported by JSON?
Ans  : None of the above

Ques : If a schema property is declared false, which of the following attributes can not be used to extend the schema?
Ans  : additionalProperties

Ques : Which syntax is correct for the jsonPath() function during the implementation of JSONPath?
Ans  : jsonPath(obj, expr [, args])

Ques : In the code snippet below, which line contains an error?

Line1: {
Line2: "id":"person",
Line3: "type":"object",
Line4: "properties":{
Line5: "name":{"type":"string"},
Line6: "age":{"type":"integer"}
Line7: }
Line8: }
Line9: {
Line10:"id":"marriedperson",
Line11: "extends":{"ref":"person"},
Line12: "properties":{
Line13: "age":{"type":"integer",
Line14: "minimum":17},
Line15: }
Line16: }
Ans  : Line 11

Ques : Which of the following correctly describes the JSON Schema?
Ans  :  It is intended to provide validation and interaction control of the JSON data.

Ques : Which of the following parameters of JSONRequest hold/s the information of implicit authentication and cookies during post operation?
Ans  : send

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