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Prasanna_24Prasanna_24 

Platform Dev-1 questions

Hi,
Can you please help me out by answering these questions.
A company wants a recruiting app that models candidates and interviews; displays the total number of interviews on each candidate record; and defines security on interview records that is independent from the security on candidate records.What would a developer do to accomplish this task? 
Choose 2 answers.
A) Create a lookup relationship between the Candidate and Interview objects.
B) Create a trigger on the Interview object that updates a field on the Candidate object
C) Create a roll-up summary field on the Candidate object that counts Interview records.
D) Create a master-detail relationship between the Candidate and Interview objects.
 
Hoping the Ans as :A,B

2) In the Lightning Component framework, which resource can be used to fire events?ans: A,B
Choose 2 answers
Third-party Javascript code.
Javascript controller actions.
Visualforce controller actions.
Third-party web service code.

Hoping as Ans: A,B

3) What is a capability of formula fields? 
 
   Choose 3 answer 
 
A) Generate a link using the HIPERLINK function to a specific record in a legacy system
B) Determine if a datetime field has passed using the NOW function
C) Determine which of three different images to display using IF function
D) Return and display a field value from another object using the VLOOKUP function
E) Display the previous value for a field using the PRIORVALUE funtion

I think Ans: B,C,D

4)A developer wants to display all the available record types for a case Object. The developer also wants to display the picklist values for the Case.Status field. The Case Object and the Case.Status field are on a Custom Visualforce page.
Which action can the developer perform to get the record types and picklist values in the controller?
Choose 2 answers. 
Use Schema.PicklistEntry returned by Case.Status.getDescribe().getPicklistValues()
Use Schema.RecordTypeInfo returned by Case.sObjectType.getDescribe().getRecordTypeInfos()
Use SOQL to query Case records in the org to get all values for the Status picklist field
Use SOQL to query Case records in the org to get all the RecordType values available for Case 

I think Ans:A,B

5) A developer writes a SOQL query to find child records for a specific parent. Ans:5



 



How many levels can be returned in a single query?

A. 1
B. 7
C. 5
D. 3
 
Confused between option A and C.Please clarify these questions.

Thanks in advance for your help.


 
R Z KhanR Z Khan
1. A, B. Because rollu can only be done on master detail. and you can't have independent security with master detail
2. B, C. control through custom JS or Visualforce controller
3. A, B, C. VLOOKUP field is only available in validation rules. PRIORVALUE is also not available in formula fields
4. A, B
5. C. You can return up to 5 levels of parent objects though relationship query. for exampl [SELECT ParetnId, Parent.ParentId, Parent.Parent.ParentId], etc

Mark as best answer if this answers your question
Mathew Andresen 5Mathew Andresen 5
#2 is B,D  Lightening doesn't do visualforce controller, but it does do 3rd party web
#3, I'm pretty sure it's B,C,D
#4 is A,D   (the question is in two parts use a normal SQL query to get record types
#5 A  (You're going to child not parent, so only one child).  IE you can go [SELECT Name (SELECT Name FROM Contact) FROM Account];
R Z KhanR Z Khan
2. You can use controller with @AuraEnabled annotation. https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_annotation_AuraEnabled.htm
3. VLOOKUP is only available in validation rules
4. To get all record types available for the Case, you would have to query the recordType object, not the case object.
5. My bad, i didn't read the child part. Mathew is correct its 1.
PeterNPeterN
2) B, D; Visualforce doesnt fire events specifically, those are primarily a Javascript based.

https://developer.salesforce.com/docs/atlas.en-us.200.0.lightning.meta/lightning/intro_events.htm
Its mostly javascript controllers, also given that it's probably also a 3rd party webservice as indicated here:
https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/events_external.htm

Personally, I'd like to inquiry why A would be the incorrect answer, but documentation wise seems to points B, D

Annnd that's all I know lol.  
Prasanna_24Prasanna_24
Thanks everyone for your valuable replies.I will post some more when i struck at any concept/question..

Once again Thank You!! :)
venkat reddy 31venkat reddy 31
1. A, B. ("defines security on interview records that is independent from the security on candidate records")
2. A.B  third party javascript and javascript controller actions
3. A, B, C. VLOOKUP field is only available in validation rules. PRIORVALUE is also not available in formula fields
4. A, B
5. A
Daniel Pereira 7Daniel Pereira 7
Hi all,

I did not successfully complete the exam DEV-1 (450), and I'm looking for questions to study to the exam. Do you have more questions about DEV-1?

Thank you
Saikat Mukherjee 9Saikat Mukherjee 9
 you can only go one level down in relationships when querying from parent to child and five levels up the relationship chain when querying from a child to a parent.
Rag SRag S
@Prasanna_24
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Shalni SinghShalni Singh
Hi ,
Can you please help me out by answering this question.
1. which three resources in a lightning Component Bundle can contain Javascript Functions:
Choose three Answer
a.Helper
b.Rendered
c.Controller
d.desion
e.style

I hope the ans is Helper ,Rendered and Controller .

 
Naren9Naren9
Hi Shalini,
 Helper ,Rendered and Controller is correct. A component Bundle can contain Style also, but in the question they asked the Javascript fucntions, in style we can'r call the java script functions.
https://developer.salesforce.com/docs/atlas.en-us.220.0.lightning.meta/lightning/components_bundle.htm

Thanks,
Naren
Shalni SinghShalni Singh
Hi ,
Can you please help me out by answering this question
Q. which type of code represent the model the Model in the MVC architecture on Fore.com platform.
1. Controller Extension method that saves a list of account records.
2. Custom Javascript that processes a list of Account records.
3.A Controller Extension method that used SOQl to query for a list of Account records.
4.A list of Account records returned  from a controller Extension method. 

Q2. In the code below , which type does string inherit from?
  String s ='Hello World' ;
1.Protoype
2.Class
3.sObject
4.Object 
 
Naren9Naren9
For the Q2, the Answers is 4. Object.
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/langCon_apex_primitives.htm
All Apex data types inherit from Object.

Thanks,
Naren
Shalni SinghShalni Singh
Hi Thomas
I have mailed you PLease check and thank you.

Have one question -
Can you please help me out by answering this question
Q. A developer declared a class as follows:
       public  class wysing{
     // properties and methods including DML
}
 Which invocation of a class methods will obey the OWD and sharing setting for the running user in the Salesorce organization?

A . An Apex trigger that invokes  a helper method in this class.
B. A user on an external system that has  an API call into Salesforce that invoke a method in this class.
C .A visualForce page with an Apex controller that invokes  a methods in this class.
d. A developer  using the Developer console that invokes a methods in this class from the excecute anonymous
  window .


 
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Muralikrishnan B RMuralikrishnan B R
@shalini singh, Have one question -
Can you please help me out by answering this question
Q. A developer declared a class as follows:
       public  class wysing{
     // properties and methods including DML
}
 Which invocation of a class methods will obey the OWD and sharing setting for the running user in the Salesorce organization?

A . An Apex trigger that invokes  a helper method in this class.
B. A user on an external system that has  an API call into Salesforce that invoke a method in this class.
C .A visualForce page with an Apex controller that invokes  a methods in this class.
d. A developer  using the Developer console that invokes a methods in this class from the excecute anonymous
  window .

Ans : D
Muralikrishnan B RMuralikrishnan B R
@Shalini shingh, 
Q. which type of code represent the model the Model in the MVC architecture on Fore.com platform.
1. Controller Extension method that saves a list of account records.
2. Custom Javascript that processes a list of Account records.
3.A Controller Extension method that used SOQl to query for a list of Account records.
4.A list of Account records returned  from a controller Extension method. 

Q2. In the code below , which type does string inherit from?
  String s ='Hello World' ;
1.Protoype
2.Class
3.sObject
4.Object 
Ans : 4
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