diff --git a/server/src/test/java/org/opensearch/repositories/blobstore/BlobStoreRepositoryTests.java b/server/src/test/java/org/opensearch/repositories/blobstore/BlobStoreRepositoryTests.java
index 2504c17ecd12d..2cdc701f0fee9 100644
--- a/server/src/test/java/org/opensearch/repositories/blobstore/BlobStoreRepositoryTests.java
+++ b/server/src/test/java/org/opensearch/repositories/blobstore/BlobStoreRepositoryTests.java
@@ -121,8 +121,8 @@ protected void assertSnapshotOrGenericThread() {
     }
 
     @Override
-    protected Settings nodeSettings() {
-        return Settings.builder().put(super.nodeSettings()).put(FeatureFlags.REMOTE_STORE, "true").build();
+    protected Settings featureFlagSettings() {
+        return Settings.builder().put(super.featureFlagSettings()).put(FeatureFlags.REMOTE_STORE, "true").build();
     }
 
     public void testRetrieveSnapshots() throws Exception {
diff --git a/server/src/test/java/org/opensearch/search/SearchServiceTests.java b/server/src/test/java/org/opensearch/search/SearchServiceTests.java
index ca1816fc87a00..27db5e85fc563 100644
--- a/server/src/test/java/org/opensearch/search/SearchServiceTests.java
+++ b/server/src/test/java/org/opensearch/search/SearchServiceTests.java
@@ -224,9 +224,14 @@ public void onQueryPhase(SearchContext context, long tookInNanos) {
         }
     }
 
+    @Override
+    protected Settings featureFlagSettings() {
+        return Settings.builder().put(super.featureFlagSettings()).put(FeatureFlags.CONCURRENT_SEGMENT_SEARCH, "true").build();
+    }
+
     @Override
     protected Settings nodeSettings() {
-        return Settings.builder().put("search.default_search_timeout", "5s").put(FeatureFlags.CONCURRENT_SEGMENT_SEARCH, true).build();
+        return Settings.builder().put("search.default_search_timeout", "5s").build();
     }
 
     public void testClearOnClose() {
diff --git a/test/framework/src/main/java/org/opensearch/test/OpenSearchSingleNodeTestCase.java b/test/framework/src/main/java/org/opensearch/test/OpenSearchSingleNodeTestCase.java
index 35a4e059f0546..e061fbb668e55 100644
--- a/test/framework/src/main/java/org/opensearch/test/OpenSearchSingleNodeTestCase.java
+++ b/test/framework/src/main/java/org/opensearch/test/OpenSearchSingleNodeTestCase.java
@@ -45,6 +45,8 @@
 import org.opensearch.cluster.metadata.Metadata;
 import org.opensearch.cluster.routing.allocation.DiskThresholdSettings;
 import org.opensearch.common.Priority;
+import org.opensearch.common.settings.FeatureFlagSettings;
+import org.opensearch.common.settings.Setting;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.common.unit.TimeValue;
 import org.opensearch.common.util.BigArrays;
@@ -246,10 +248,9 @@ private Node newNode() {
             .put(HierarchyCircuitBreakerService.USE_REAL_MEMORY_USAGE_SETTING.getKey(), false)
             .putList(DISCOVERY_SEED_HOSTS_SETTING.getKey()) // empty list disables a port scan for other nodes
             .putList(INITIAL_CLUSTER_MANAGER_NODES_SETTING.getKey(), nodeName)
-            .put(FeatureFlags.TELEMETRY_SETTING.getKey(), true)
-            .put(TelemetrySettings.TRACER_ENABLED_SETTING.getKey(), true);
-        // allow test cases to provide their own settings or override these
-        settingsBuilder.put(nodeSettings());
+            .put(TelemetrySettings.TRACER_ENABLED_SETTING.getKey(), true)
+            .put(nodeSettings()) // allow test cases to provide their own settings or override these
+            .put(featureFlagSettings());
 
         if (Boolean.parseBoolean(settingsBuilder.get(FeatureFlags.CONCURRENT_SEGMENT_SEARCH))
             && (settingsBuilder.get(SearchBootstrapSettings.CONCURRENT_SEGMENT_SEARCH_TARGET_MAX_SLICE_COUNT_KEY) == null)) {
@@ -422,4 +423,19 @@ protected boolean forbidPrivateIndexSettings() {
         return true;
     }
 
+    /**
+     * Setting all feature flag settings at base IT, which can be overridden later by individual
+     * IT classes.
+     *
+     * @return Feature flag settings.
+     */
+    protected Settings featureFlagSettings() {
+        Settings.Builder featureSettings = Settings.builder();
+        for (Setting builtInFlag : FeatureFlagSettings.BUILT_IN_FEATURE_FLAGS) {
+            featureSettings.put(builtInFlag.getKey(), builtInFlag.getDefaultRaw(Settings.EMPTY));
+        }
+        featureSettings.put(FeatureFlags.TELEMETRY_SETTING.getKey(), true);
+        return featureSettings.build();
+    }
+
 }