diff --git a/extensions/resource-deployment/src/localizedConstants.ts b/extensions/resource-deployment/src/localizedConstants.ts
index 75f5f4b29e..1f9f1fe13e 100644
--- a/extensions/resource-deployment/src/localizedConstants.ts
+++ b/extensions/resource-deployment/src/localizedConstants.ts
@@ -19,5 +19,6 @@ export const signIn = localize('azure.signin', "Sign in…");
 export const refresh = localize('azure.refresh', "Refresh");
 export const createNewResourceGroup = localize('azure.resourceGroup.createNewResourceGroup', "Create a new resource group");
 export const NewResourceGroupAriaLabel = localize('azure.resourceGroup.NewResourceGroupAriaLabel', "New resource group name");
+export const realm = localize('deployCluster.Realm', "Realm");
 
 
diff --git a/extensions/resource-deployment/src/services/bigDataClusterDeploymentProfile.ts b/extensions/resource-deployment/src/services/bigDataClusterDeploymentProfile.ts
index c96b229515..32bd38756d 100644
--- a/extensions/resource-deployment/src/services/bigDataClusterDeploymentProfile.ts
+++ b/extensions/resource-deployment/src/services/bigDataClusterDeploymentProfile.ts
@@ -26,6 +26,7 @@ export interface ActiveDirectorySettings {
 	domainControllerFQDNs: string;
 	dnsIPAddresses: string;
 	domainDNSName: string;
+	realm?: string;
 	clusterUsers: string;
 	clusterAdmins: string;
 	appReaders?: string;
@@ -284,7 +285,7 @@ export class BigDataClusterDeploymentProfile {
 		activeDirectoryObject.domainDnsName = adSettings.domainDNSName;
 		activeDirectoryObject.subdomain = adSettings.subdomain;
 		activeDirectoryObject.accountPrefix = adSettings.accountPrefix;
-		activeDirectoryObject.realm = adSettings.domainDNSName.toUpperCase();
+		activeDirectoryObject.realm = adSettings.realm ?? adSettings.domainDNSName.toUpperCase();
 		activeDirectoryObject.clusterAdmins = this.splitByComma(adSettings.clusterAdmins);
 		activeDirectoryObject.clusterUsers = this.splitByComma(adSettings.clusterUsers);
 		if (adSettings.appReaders) {
diff --git a/extensions/resource-deployment/src/ui/deployClusterWizard/deployClusterWizardModel.ts b/extensions/resource-deployment/src/ui/deployClusterWizard/deployClusterWizardModel.ts
index f2216791c7..edcb9a83d7 100644
--- a/extensions/resource-deployment/src/ui/deployClusterWizard/deployClusterWizardModel.ts
+++ b/extensions/resource-deployment/src/ui/deployClusterWizard/deployClusterWizardModel.ts
@@ -128,6 +128,7 @@ export class DeployClusterWizardModel extends Model {
 				organizationalUnit: this.getStringValue(VariableNames.OrganizationalUnitDistinguishedName_VariableName)!,
 				domainControllerFQDNs: this.getStringValue(VariableNames.DomainControllerFQDNs_VariableName)!,
 				domainDNSName: this.getStringValue(VariableNames.DomainDNSName_VariableName)!,
+				realm: this.getStringValue(VariableNames.Realm_VariableName),
 				dnsIPAddresses: this.getStringValue(VariableNames.DomainDNSIPAddresses_VariableName)!,
 				clusterAdmins: this.getStringValue(VariableNames.ClusterAdmins_VariableName)!,
 				clusterUsers: this.getStringValue(VariableNames.ClusterUsers_VariableName)!,
diff --git a/extensions/resource-deployment/src/ui/deployClusterWizard/pages/clusterSettingsPage.ts b/extensions/resource-deployment/src/ui/deployClusterWizard/pages/clusterSettingsPage.ts
index d4e77f7689..f8d114abb8 100644
--- a/extensions/resource-deployment/src/ui/deployClusterWizard/pages/clusterSettingsPage.ts
+++ b/extensions/resource-deployment/src/ui/deployClusterWizard/pages/clusterSettingsPage.ts
@@ -13,6 +13,7 @@ import { WizardPageBase } from '../../wizardPageBase';
 import * as VariableNames from '../constants';
 import { DeployClusterWizard } from '../deployClusterWizard';
 import { AuthenticationMode } from '../deployClusterWizardModel';
+import * as localizedConstants from '../../../localizedConstants';
 const localize = nls.loadMessageBundle();
 
 const ConfirmPasswordName = 'ConfirmPassword';
@@ -148,6 +149,12 @@ export class ClusterSettingsPage extends WizardPageBase<DeployClusterWizard> {
 					label: localize('deployCluster.DomainDNSName', "Domain DNS name"),
 					required: true,
 					variableName: VariableNames.DomainDNSName_VariableName
+				}, {
+					type: FieldType.Text,
+					label: localizedConstants.realm,
+					required: false,
+					variableName: VariableNames.Realm_VariableName,
+					description: localize('deployCluster.RealmDescription', "If not provided, the domain DNS name will be used as the default value.")
 				}, {
 					type: FieldType.Text,
 					label: localize('deployCluster.ClusterAdmins', "Cluster admin group"),
diff --git a/extensions/resource-deployment/src/ui/deployClusterWizard/pages/summaryPage.ts b/extensions/resource-deployment/src/ui/deployClusterWizard/pages/summaryPage.ts
index 34e98801f8..0c169926ce 100644
--- a/extensions/resource-deployment/src/ui/deployClusterWizard/pages/summaryPage.ts
+++ b/extensions/resource-deployment/src/ui/deployClusterWizard/pages/summaryPage.ts
@@ -10,6 +10,7 @@ import { createSection, createGroupContainer, createFlexContainer, createLabel }
 import { WizardPageBase } from '../../wizardPageBase';
 import * as VariableNames from '../constants';
 import { AuthenticationMode } from '../deployClusterWizardModel';
+import * as localizedConstants from '../../../localizedConstants';
 const localize = nls.loadMessageBundle();
 
 export class SummaryPage extends WizardPageBase<DeployClusterWizard> {
@@ -53,6 +54,7 @@ export class SummaryPage extends WizardPageBase<DeployClusterWizard> {
 						{
 							type: FieldType.ReadonlyText,
 							label: localize('deployCluster.ClusterContext', "Cluster context"),
+							defaultValue: this.wizard.model.getStringValue(VariableNames.ClusterContext_VariableName),
 							labelCSSStyles: { fontWeight: FontWeight.Bold }
 						}]
 				}
@@ -151,13 +153,13 @@ export class SummaryPage extends WizardPageBase<DeployClusterWizard> {
 					{
 						type: FieldType.ReadonlyText,
 						label: localize('deployCluster.AppOwners', "App owners"),
-						defaultValue: this.wizard.model.getStringValue(VariableNames.AppOwners_VariableName),
+						defaultValue: this.wizard.model.getStringValue(VariableNames.AppOwners_VariableName, ''),
 						labelCSSStyles: { fontWeight: FontWeight.Bold }
 					},
 					{
 						type: FieldType.ReadonlyText,
 						label: localize('deployCluster.AppReaders', "App readers"),
-						defaultValue: this.wizard.model.getStringValue(VariableNames.AppReaders_VariableName),
+						defaultValue: this.wizard.model.getStringValue(VariableNames.AppReaders_VariableName, ''),
 						labelCSSStyles: { fontWeight: FontWeight.Bold }
 					}]
 			});
@@ -166,13 +168,13 @@ export class SummaryPage extends WizardPageBase<DeployClusterWizard> {
 					{
 						type: FieldType.ReadonlyText,
 						label: localize('deployCluster.Subdomain', "Subdomain"),
-						defaultValue: this.wizard.model.getStringValue(VariableNames.Subdomain_VariableName),
+						defaultValue: this.wizard.model.getStringValue(VariableNames.Subdomain_VariableName, ''),
 						labelCSSStyles: { fontWeight: FontWeight.Bold }
 					},
 					{
 						type: FieldType.ReadonlyText,
 						label: localize('deployCluster.AccountPrefix', "Account prefix"),
-						defaultValue: this.wizard.model.getStringValue(VariableNames.AccountPrefix_VariableName),
+						defaultValue: this.wizard.model.getStringValue(VariableNames.AccountPrefix_VariableName, ''),
 						labelCSSStyles: { fontWeight: FontWeight.Bold }
 					}]
 			});
@@ -183,6 +185,11 @@ export class SummaryPage extends WizardPageBase<DeployClusterWizard> {
 						label: localize('deployCluster.DomainServiceAccountUserName', "Service account username"),
 						defaultValue: this.wizard.model.getStringValue(VariableNames.DomainServiceAccountUserName_VariableName),
 						labelCSSStyles: { fontWeight: FontWeight.Bold }
+					}, {
+						type: FieldType.ReadonlyText,
+						label: localizedConstants.realm,
+						defaultValue: this.wizard.model.getStringValue(VariableNames.Realm_VariableName, ''),
+						labelCSSStyles: { fontWeight: FontWeight.Bold }
 					}]
 			});
 		}