DBzTech-Technology Dossier

Isolation Levels In DB2

In high-volume IBM Db2 systems, concurrency is crucial for stability. The isolation level influences locking behavior, impacting which data is locked and for how long. Various levels—Repeatable Read, Read Stability, Cursor Stability, and Uncommitted Read—balance between consistency and concurrency, affecting system performance in scenarios like hotel bookings.
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What is Google Cloud Dataflow

In today’s cloud environments, data is constantly generated from applications, API logs, IoT sensors, and user activity streams. This data is valuable and can be used for analysis —but only if it can be processed, cleaned, and analyzed quickly. This is where Google Cloud Dataflow plays a critical role. Cloud…
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Identity and Access Management (IAM) in Google Cloud

GCP Security IAM + responsibility model: A Complete Overview Google Cloud Platform (GCP) offers a robust set of security features designed to protect data, applications, and infrastructure. One of the core concepts behind GCP security is the Shared Responsibility Model Google is responsible for security of the cloud (physical data…
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Security Command Center (SCC) and Web Security Scanner

🔐 Are Your Google Cloud Resources Really Secure? Moving to the cloud is easy. Securing it properly? That’s where things get interesting. In Google Cloud, security is not just about firewalls and IAM. You need visibility, continuous monitoring, and actionable insights. That’s where Security Command Center (SCC) and Web Security…
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What is Private Google Access

Private Google Access is a Google Cloud feature that allows VMs without external (public) IP addresses to access Google APIs and services (such as BigQuery and Cloud Storage) without sending traffic to the public internet. In simple terms: Private Google Access lets private VMs reach Google services securely, using Google’s…
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Pre-Trained APIs Vs AutoML Vs Custom Models in GCP

Google Cloud offers a spectrum of AI solutions that allow organizations to start simple and scale toward greater customization as their needs evolve: 👉 For the Cloud Digital Leader exam, remember this progression: From fastest to most flexible:Pre-trained APIs → AutoML → Custom Models This path helps businesses adopt AI…
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Abend IGZ0033S:Passing Parameters Above 16 MB to AMODE(24)

Understanding IGZ0033S: Passing Parameters Above 16 MB to AMODE(24) COBOL Programs If you’re working with IBM Enterprise COBOL on z/OS, you may encounter the error: This can be confusing, especially when modern programs and legacy code interact. In this post, we’ll break down the root cause, explain AMODE vs DATA,…
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What Is Google Cloud Filestore?

One File System. Many VMs. Zero Chaos. How Google Cloud Makes Shared Storage Easy with Filestore Imagine you’re running multiple virtual machines, and all of them need to read from and write to the same set of files at the same time. Logs, media files, configs, shared assets — everyone…
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What are Pretrained AI APIs in GCP

If an organization has high-quality labeled data and sufficient time and resources to train custom AI models, AutoML is often the best choice. However, when data, expertise, or infrastructure is limited, Google Cloud pretrained AI APIs offer a fast, cost-effective, and reliable alternative. Google Cloud provides a wide range of…
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Cloud SQL Vs Cloud Spanner Vs Firestore Vs Cloud BigTable-Use Cases

“What happens when millions of users click ‘Buy Now’ at the same time?” Behind every smooth e-commerce experience—instant cart updates, reliable payments, and lightning-fast product searches—there is a carefully designed data architecture. Will try to understand the usage of GCP products through an example. 🧾 Core Business Operations – Cloud…
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What is VPC in Google Cloud

What Is a VPC in Google Cloud? Ever wondered how your cloud resources communicate securely and privately at scale? In Google Cloud, that invisible backbone is the VPC. A Virtual Private Cloud (VPC) is a secure, private, and isolated virtual network inside Google’s massive global network. It allows you to…
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What is Cloud VPN and Cloud Interconnect in GCP

Cloud VPN and Cloud Interconnect in GCP
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What is Persistent Disk in GCP

A virtual machine is disposable. Your data should never be. So when a VM runs in Google Cloud, where does its data actually live—and why doesn’t it vanish when the VM does? The answer in Google Cloud Platform (GCP) is Persistent Disk. So, What Is Persistent Disk? Persistent Disk (PD)…
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Google Cloud Storage Classes (GCS)Explained

One of the key benefits of migrating to the cloud is the pay-as-you-go pricing model, which allows organizations to significantly reduce infrastructure and operational costs by paying only for the resources they consume. Every organization manages large volumes of data—some accessed frequently and some accessed infrequently—making flexible storage options essential.…
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What is Google Cloud Storage

Cloud Storage is google Platform’s Data Lake product. Before we go to Cloud Storage, we need to understand the concept of Data Lake. What Is a Data Lake? A Data Lake is a centralized repository that allows you to store all types of data — structured, semi-structured, and unstructured —…
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What is BigQuery in Google Cloud

BigQuery is data warehouse product from Google. We will start with Datawarehouse and it’s importance. 📊 What Is a Data Warehouse and Why It Matters A data warehouse is a central repository that stores large volumes of data collected from multiple heterogeneous sources — such as transactional databases, logs, APIs,…
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NoSQL Product GCP- Cloud BigTable and Firestore

Having a knowledge of NoSQL is necessary before we know the NoSQL products. A short summary is present in this post. Cloud Bigtable Cloud Firestore
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Understanding NoSQL Databases: Types and Benefits

Traditional SQL databases rely on a fixed schema that defines how data must be structured and stored. However, as technology evolved, rigid schema requirements became limiting for modern applications. This created the need for databases capable of ingesting diverse data types without strict constraints. NoSQL databases address this need by…
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Google Cloud SQL Vs Cloud Spanner

Google Cloud offers two powerful relational database services—Cloud SQL and Cloud Spanner. While both provide fully managed SQL capabilities, they serve very different needs depending on the scale and architecture of your application. Cloud SQL Cloud SQL is the fully managed relational database service on Google Cloud. It supports standard…
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What is Google Cloud Functions

Looking for a way to run a small piece of code only when it’s needed — without managing servers? That’s exactly what serverless functions do. 🚀 What is Google Cloud Functions (Function-as-a-Service)? Google Cloud Functions is a serverless “function-as-a-service” solution that lets you upload a snippet of code and have…
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