Friday, December 29, 2017

Tips for passing Salesforce certified Integration Architecture Designer (WI18)

Today (28th Dec'2017), I have successfully passed Salesforce certified Integration Architecture Designer (WI18)  with an overall score 93%

I have faced total 60 questions. Unlike Sharing and Visibility exam and Deployment Designer exam, there are no additional questions. It has taken around 80 hours of preparation mostly one month time frame.



Exam Objective


The Salesforce Certified Integration Architecture Designer exam has the following characteristics:
  • Content: 60 multiple-choice/multiple-select questions* (5 unscored questions will be added)
  • Time allotted to complete the exam: 90 minutes (time allows for unscored questions)
  • Passing Score: 67%
  • Registration fee: USD 400, plus applicable taxes as required per local law
  • Retake fee: USD 200, plus applicable taxes as required per local law
  • Delivery options: Proctored exam delivered onsite at a testing center or in an online proctored environment. Click here for information on scheduling an exam.
  • References: No hard-copy or online materials may be referenced during the exam.
  • Prerequisite: None

*Please note that as of November 16, 2017, all Salesforce certification exams will contain five additional, randomly placed, unscored questions to gather data on question performance. The duration of each exam has been evaluated and adjusted to accommodate the inclusion of the unscored questions. These five questions will be in addition to the 60 scored questions on your exam, and will have no impact whatsoever on your score.

Preparing myself


Before I started my preparation, I have prepared a document and noted down all the points and advice mentioned by these guys. Thanks to all of them.

Topics I have received on Exam


  • Different types of APIs (SOAP, REST, BULK, Metadata), their usage, restrictions and limitations
  • Advantages of using them over another. 
  • Lots of questions of Outbound messages and following points to be noted
    • It has guaranteed delivery and may produce duplicate records in the consumer system.
    • It can pass SessionId
    • To consume it, the end point listener must have SOAP API implementation
    • Declarative way of making outbound call
    • It doesn't allow multiple objects
    • It allows junction object
    • Callback of this message should incur API limit
  • Bulk data load (Bulk API parallel mode and Serial mode with different batch size)
  • Confusing question on SOAP API (parallel mode)
  • API limit
    • Note that SOAP API callout to external system doesn't consume API limit.
    • Bulk API has separate API limit (refer documentation)
  • Unauthenticated and Authenticated mashup. First one is for Custom web tab, second one is for Canvas
  • Different types of testing, like regression, unit, UAT, Continuous integration
  • Different kinds of design patterns and which can be used over another
  • Apex Webservice (SOAP and REST based)
  • Data replication API, SOAP based getUpdated() usage.
  • Salesforce-to-Salesforce (when should be done and not to be)
  • Different kinds of authentication mechanism (including canvas)
  • Different types of sandboxes and which one is suitable for different types of testing
  • Data loading tools (Data loader, Data Import wizard, Workbench)
  • Usage of middleware (4 to 5 questions) and ESB (Enterprise Service Bus)
  • Off-platform de-duplication and Salesforce out-of-box duplicate management (when to use what?)
  • Encryption on rest and transmit - Base64 encoding, platform encryption, encryption with shared key
  • IP white-listing and considerations on firewall.
If anyone follows above links and study material completely then definitely could clear this exam at first try. All the questions are from study materials and based on real life scenarios.

Above all, it's a great relief passing this exam.

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Wednesday, December 20, 2017

Visualforce with JQuery Datatable for sorting, pagination and handling 10000 records

Use Case


 Sometimes we get a requirement to display tabular data in visualforce which will have following features:


  • Data will be displayed in paginated way.
  • Column headers must be sortable
  • Keyword search in the list itself.
  • More over if we want to display 10000 records in the list.

Solution

We can leverage JQuery datatable library to achieve those functionalities.

Controller



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public with sharing class SortWrapper 
{

    public List<ContactInfoWrapper> ContactsWrapper {get; set;}    
    //added for paginnation
    public List<List<ContactInfoWrapper>> listofContactsWrapper {get; set;}
    
    public SortWrapper()
    {
  ContactsWrapper = new List<ContactInfoWrapper>();
  listofContactsWrapper = new List<List<ContactInfoWrapper>>();
        getContacts();
    } 
     
    public void getContacts()   
    {
        for(Contact s:[SELECT Id, Name, Email, Phone, Account.Name FROM Contact])
        {            
            ContactsWrapper.add(new ContactInfoWrapper(s)); 
            if(ContactsWrapper.size() == 999)
   {
    listofContactsWrapper.add(ContactsWrapper);
    ContactsWrapper= new List<ContactInfoWrapper>();
            }                
        } 
        if(ContactsWrapper.size() != 0){
   listofContactsWrapper.add(ContactsWrapper);
     }   
        
    }
    
 //Wrapper class
    public class ContactInfoWrapper
    {
        public Contact sObj{get;set;}
        public Boolean checked {get;set;}
        public ContactInfoWrapper(Contact con)
        {
            sObj = con;  
            checked=false;  
        } 
    }
}

Visualforce



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<apex:page id="SortPage" controller="SortWrapper"  showHeader="false">
    <!--added for pagination-->
       <head>
        <apex:includescript value="//code.jquery.com/jquery-1.11.1.min.js" / >
        <apex:includescript value="//cdn.datatables.net/1.10.4/js/jquery.dataTables.min.js" />
        <apex:stylesheet value="//cdn.datatables.net/1.10.4/css/jquery.dataTables.css" />
        <script>
            j$ = jQuery.noConflict();
            j$(document).ready( function () {
                var contactTable = j$('[id$="contacttable"]').DataTable({
                    
                });
            });
        </script>
    </head>
   <!---End of Pagination--->
   
    <apex:form id="myForm">
   
        <apex:sectionHeader title="Contact"/><br/>
        
        <apex:pageBlock>
            
            <apex:pageBlockSection title="Contact Records" collapsible="false" columns="1"/>
            <br></br>
            <body>                
                <table id="contacttable" class="display">       
                    <thead>
                        <tr>
                            <th style="width:10%;">Select</th>
                            <th style="width:25%;">Name</th>
                            <th style="width:30%;">Account Name</th>                                
                        </tr>
                    </thead>
                    <tbody>
                        <apex:repeat value="{!listofContactsWrapper}" var="contactinfowrp" id="tableInd">
                              <apex:repeat value="{!contactinfowrp}" var="con">
                               <tr >
                                  <td><apex:inputCheckbox value="{!con.checked}"/></td>
                                  <td>{!con.sObj.Name}</td>
                                  <td>{!con.sObj.Account.Name}</td>
                              </tr>
                            </apex:repeat>
                        </apex:repeat>
                    </tbody>
                </table>
            </body>
        </apex:pageBlock>  
    </apex:form>
</apex:page>

Outcome


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Friday, December 15, 2017

Tips for passing Salesforce certified Development Lifecycle and Deployment Designer

Today (14th Dec'2017) I have successfully passed Salesforce certified Development Lifecycle and Deployment Designer exam.

I have faced 65 questions (including 5 unscored questions) and for me it has taken total 25 hours (almost 3 and half days) to prepare for this exam and my overall score is 84%


Exam Objective


The Salesforce Certified Development Lifecycle and Deployment Designer exam has the following characteristics:
  • Content: 60 multiple-choice/multiple-select questions* (5 unscored questions will be added)
  • Time allotted to complete the exam: 90 minutes (time allows for unscored questions)
  • Passing Score: 68%
  • Registration fee: USD 400, plus applicable taxes as required per local law
  • Retake fee: USD 200, plus applicable taxes as required per local law
  • Delivery options: Proctored exam delivered onsite at a testing center or in an online proctored environment. Click here for information on scheduling an exam.
  • References: No hard-copy or online materials may be referenced during the exam.
  • Prerequisite: None

*Please note that as of November 16, 2017, all Salesforce certification exams will contain five additional, randomly placed, unscored questions to gather data on question performance. The duration of each exam has been evaluated and adjusted to accommodate the inclusion of the unscored questions. These five questions will be in addition to the 60 scored questions on your exam, and will have no impact whatsoever on your score.

Preparing myself


Before I started my preparation, I have prepared a document and noted down all the points and advice mentioned by these guys. Thanks to all of them.



Topics I have received on Exam


  • What is the advantages and disadvantages of Waterfall and Agile methodology.
  • When to use what type of sandboxes (Developer edition, partial copy, fullcopy)
  • Deployment approach for hotfixes.
  • Deployment approach for Daily, Minor, Major releases
  • Metadata API
  • Given a scenario which deployment tool is most preferable (Force.com IDE, ChangeSet, Force.com Migration tool)
  • Role & Responsibilities of CoE, Architecture Review Board, Release Manager
  • Given a scenario for mitigating risk of deployments
  • Testing best practices
  • Ant based deployment with different types of braching
  • Continuous Integration with source code control system
  • Agile accelerator and its usage.
  • Managed and unmanaged package (when to use what)
  • Conflicting situation during salesforce release and your release and how to handle the situation

Overall, this exam is relatively easy as compared to my earlier architect exams like Sharing and Data designer exams. My real life project experience has helped me passing the exam with relatively few hours of preparation.

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Sunday, December 10, 2017

Platform Encryption - Encryption at Rest


Use Case

Recently, I got a requirement to implement Salesforce Shield (platform encryption) at our salesforce organization. It brings a question to me how Salesforce uses platform encryption and encrypt the data at Rest.

Solution

If we refer Salesforce Shield Platform Encryption Implementation Guide, we get to know how below process flow works and I am not going deep into this as going through the pdf we can understand the flow and ultimately data is derived based on master key and tenant key.


For a sake of proof of concept, I have defined Case Subject, Description and Case comment fields to be encrypted.

To do this follow: Setup -> Platform Encryption


Click on Encrypt Fields link to reach Encrypt Standard Field page and defined as follows:


Then, I have created a sample case with this subject and description:

If I try to query the same case record from the Developer Console, it returns as follows:


Now, how can I prove that data is encrypted as I can see the data as usual. Moreover there is no such proof of Encypted indicator as I can see for attachment as follows:


This makes me curious about this poc.

Approach


First I described the Case Subject field from workbench and it displays as encrypted and also thought that I am an authorized user to access this record that's why I can read the data in a normal way. But I was not satisfied with this.



To make it full proof, I archived the tenant key and exported the key as backup.


Then, destroyed the tenant key based on which that case subject and description got generated.


Now, accessed the same record, it is showing ????? (means, This service is unavailable now). This means encrypted data which has been encrypted with my previous tenant key is not available.

That sounds interesting to me.

But, how can I retrieve the previous data then?

So, I imported the same previous tenant key as follows:



After importing, accessed the same case record. It showed the data again.

Conclusion


It gives me confidence that subject and description standard fields have been encrypted properly with Salesforce shield and encrypted at Rest.


Further Reading


Platform Encryption - Things to know before activating Platform Shield
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