Array
  (
    [0] => Array
        (
        [SubjectID] => 16
        [QuestionID] => 4358
        [QuestionType] =>
        [Question] => Which one is a wrong statement?
        [Answer1] => some answer1.
        [Answer2] => some answer2
        [Answer3] => some answer3
        [Answer4] => some answer4
        [CorrectAnswer] => 4
        [Hint] =>
        [DiffLevel] => Medium
        [Status] => Active
        [AnsDescription] => some description.
   )

 [1] => Array
    (
        [SubjectID] => 16
        [QuestionID] => 4359
        [QuestionType] => SingleAnswer
        [QuestionType] =>
        [Question] => Which one is a wrong statement?
        [Answer1] => some answer1.
        [Answer2] => some answer2
        [Answer3] => some answer3
        [Answer4] => some answer4
        [CorrectAnswer] => 4
        [Hint] =>
        [DiffLevel] => Medium
        [Status] => Active
        [AnsDescription] => some description
    )

 )

@Component({
 selector: 'page-about',
 templateUrl: 'about.html'
 })
 export class AboutPage {
 items:any[];

 constructor(public navCtrl: NavController) {
 }

 this.items =
}

<div *ngFor="#elem of data">
    <div [(ngModel)]="elem.SubjectId"
</div>

<div *ngFor="let item of items">
    <div [(ngModel)]="item.SubjectId"
</div>

In Class Function you can use
this.items.forEach((item, index) => { ... })