diff --git a/compute/createInstance.js b/compute/createInstance.js
index 64eef1e3ed..c9b32a815e 100644
--- a/compute/createInstance.js
+++ b/compute/createInstance.js
@@ -52,46 +52,42 @@ function main(
   // const networkName = 'global/networks/default';
 
   const compute = require('@google-cloud/compute');
-  const compute_protos = compute.protos.google.cloud.compute.v1;
+  const computeProtos = compute.protos.google.cloud.compute.v1;
 
   // Create a new instance with the values provided above in the specified project and zone.
   async function createInstance() {
-    const instancesClient = new compute.InstancesClient({fallback: 'rest'});
-
-    // Describe the size and source image of the boot disk to attach to the instance.
-    const attachedDisk = new compute_protos.AttachedDisk();
-    const initializeParams = new compute_protos.AttachedDiskInitializeParams();
-
-    initializeParams.diskSizeGb = '10';
-    initializeParams.sourceImage = sourceImage;
-
-    attachedDisk.initializeParams = initializeParams;
-    attachedDisk.autoDelete = true;
-    attachedDisk.boot = true;
-    attachedDisk.type = compute_protos.AttachedDisk.Type.PERSISTENT;
-
-    // Use the network interface provided in the networkName argument.
-    const networkInterface = new compute_protos.NetworkInterface();
-    networkInterface.name = networkName;
-
-    // Collect information into the Instance object.
-    const instance = new compute_protos.Instance();
-    instance.name = instanceName;
-    instance.disks = [attachedDisk];
-    instance.machineType = `zones/${zone}/machineTypes/${machineType}`;
-    instance.networkInterfaces = [networkInterface];
+    const instancesClient = new compute.InstancesClient();
 
     console.log(`Creating the ${instanceName} instance in ${zone}...`);
 
     let [operation] = await instancesClient.insert({
-      instanceResource: instance,
+      instanceResource: {
+        name: instanceName,
+        disks: [
+          {
+            // Describe the size and source image of the boot disk to attach to the instance.
+            initializeParams: {
+              diskSizeGb: '10',
+              sourceImage,
+            },
+            autoDelete: true,
+            boot: true,
+            type: computeProtos.AttachedDisk.Type.PERSISTENT,
+          },
+        ],
+        machineType: `zones/${zone}/machineTypes/${machineType}`,
+        networkInterfaces: [
+          {
+            // Use the network interface provided in the networkName argument.
+            name: networkName,
+          },
+        ],
+      },
       project: projectId,
       zone,
     });
 
-    const operationsClient = new compute.ZoneOperationsClient({
-      fallback: 'rest',
-    });
+    const operationsClient = new compute.ZoneOperationsClient();
 
     // Wait for the create operation to complete.
     while (operation.status !== 'DONE') {
diff --git a/compute/deleteInstance.js b/compute/deleteInstance.js
index b37eb4fb76..bd1a4858d0 100644
--- a/compute/deleteInstance.js
+++ b/compute/deleteInstance.js
@@ -32,7 +32,7 @@ function main(projectId, zone, instanceName) {
 
   // Delete the instance specified by `instanceName` if it's present in the given project and zone.
   async function deleteInstance() {
-    const instancesClient = new compute.InstancesClient({fallback: 'rest'});
+    const instancesClient = new compute.InstancesClient();
 
     console.log(`Deleting ${instanceName} from ${zone}...`);
 
@@ -42,9 +42,7 @@ function main(projectId, zone, instanceName) {
       instance: instanceName,
     });
 
-    const operationsClient = new compute.ZoneOperationsClient({
-      fallback: 'rest',
-    });
+    const operationsClient = new compute.ZoneOperationsClient();
 
     // Wait for the delete operation to complete.
     while (operation.status !== 'DONE') {
diff --git a/compute/getUsageExportBucket.js b/compute/getUsageExportBucket.js
index 289dcba6e8..5f7327e676 100644
--- a/compute/getUsageExportBucket.js
+++ b/compute/getUsageExportBucket.js
@@ -28,7 +28,7 @@ function main(projectId) {
 
   async function getUsageExportBucket() {
     // Get the usage export location for the project from the server.
-    const projectsClient = new compute.ProjectsClient({fallback: 'rest'});
+    const projectsClient = new compute.ProjectsClient();
     const [project] = await projectsClient.get({
       project: projectId,
     });
diff --git a/compute/listAllInstances.js b/compute/listAllInstances.js
index 16057b1c66..65464db0a7 100644
--- a/compute/listAllInstances.js
+++ b/compute/listAllInstances.js
@@ -28,7 +28,7 @@ function main(projectId) {
 
   // List all instances in the specified project.
   async function listAllInstances() {
-    const instancesClient = new compute.InstancesClient({fallback: 'rest'});
+    const instancesClient = new compute.InstancesClient();
 
     //Use the `maxResults` parameter to limit the number of results that the API returns per response page.
     const aggListRequest = instancesClient.aggregatedListAsync({
diff --git a/compute/listImages.js b/compute/listImages.js
index c6513e46e4..99ecfce0ff 100644
--- a/compute/listImages.js
+++ b/compute/listImages.js
@@ -27,7 +27,7 @@ function main(projectId) {
   const compute = require('@google-cloud/compute');
 
   async function listImages() {
-    const imagesClient = new compute.ImagesClient({fallback: 'rest'});
+    const imagesClient = new compute.ImagesClient();
 
     // Listing only non-deprecated images to reduce the size of the reply.
     const images = imagesClient.listAsync({
diff --git a/compute/listImagesByPage.js b/compute/listImagesByPage.js
index a14f2e7261..c3337c287d 100644
--- a/compute/listImagesByPage.js
+++ b/compute/listImagesByPage.js
@@ -29,7 +29,7 @@ function main(projectId, pageSize = 10) {
   const compute = require('@google-cloud/compute');
 
   async function listImagesByPage() {
-    const imagesClient = new compute.ImagesClient({fallback: 'rest'});
+    const imagesClient = new compute.ImagesClient();
 
     // Listing only non-deprecated images to reduce the size of the reply.
     const listRequest = {
diff --git a/compute/listInstances.js b/compute/listInstances.js
index 1e81ff2c43..8e83a7a943 100644
--- a/compute/listInstances.js
+++ b/compute/listInstances.js
@@ -30,7 +30,7 @@ function main(projectId, zone) {
 
   // List all instances in the given zone in the specified project.
   async function listInstances() {
-    const instancesClient = new compute.InstancesClient({fallback: 'rest'});
+    const instancesClient = new compute.InstancesClient();
 
     const [instanceList] = await instancesClient.list({
       project: projectId,
diff --git a/compute/setUsageExportBucket.js b/compute/setUsageExportBucket.js
index c0e6ad54a8..a292a0f341 100644
--- a/compute/setUsageExportBucket.js
+++ b/compute/setUsageExportBucket.js
@@ -44,10 +44,8 @@ function main(projectId, bucketName, reportNamePrefix = '') {
     }
 
     // Set the usage export location.
-    const projectsClient = new compute.ProjectsClient({fallback: 'rest'});
-    const operationsClient = new compute.GlobalOperationsClient({
-      fallback: 'rest',
-    });
+    const projectsClient = new compute.ProjectsClient();
+    const operationsClient = new compute.GlobalOperationsClient();
 
     let [operation] = await projectsClient.setUsageExportBucket({
       project: projectId,
diff --git a/compute/waitForOperation.js b/compute/waitForOperation.js
index 3cdfaf8222..e4e4c0df98 100644
--- a/compute/waitForOperation.js
+++ b/compute/waitForOperation.js
@@ -31,9 +31,7 @@ function main(projectId, operationString) {
   let operation = JSON.parse(operationString);
 
   async function waitForOperation() {
-    const operationsClient = new compute.ZoneOperationsClient({
-      fallback: 'rest',
-    });
+    const operationsClient = new compute.ZoneOperationsClient();
 
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({