Question 86

You are implementing security best practices on your data pipeline. Currently, you are manually executing
jobs as the Project Owner. You want to automate these jobs by taking nightly batch files containing non-
public information from Google Cloud Storage, processing them with a Spark Scala job on a Google Cloud
Dataproc cluster, and depositing the results into Google BigQuery.
How should you securely run this workload?
  • Question 87

    Flowlogistic Case Study
    Company Overview
    Flowlogistic is a leading logistics and supply chain provider. They help businesses throughout the world manage their resources and transport them to their final destination. The company has grown rapidly, expanding their offerings to include rail, truck, aircraft, and oceanic shipping.
    Company Background
    The company started as a regional trucking company, and then expanded into other logistics market. Because they have not updated their infrastructure, managing and tracking orders and shipments has become a bottleneck. To improve operations, Flowlogistic developed proprietary technology for tracking shipments in real time at the parcel level. However, they are unable to deploy it because their technology stack, based on Apache Kafka, cannot support the processing volume. In addition, Flowlogistic wants to further analyze their orders and shipments to determine how best to deploy their resources.
    Solution Concept
    Flowlogistic wants to implement two concepts using the cloud:
    * Use their proprietary technology in a real-time inventory-tracking system that indicates the location of their loads
    * Perform analytics on all their orders and shipment logs, which contain both structured and unstructured data, to determine how best to deploy resources, which markets to expand info. They also want to use predictive analytics to learn earlier when a shipment will be delayed.
    Existing Technical Environment
    Flowlogistic architecture resides in a single data center:
    * Databases
    - 8 physical servers in 2 clusters
    - SQL Server - user data, inventory, static data
    - 3 physical servers
    - Cassandra - metadata, tracking messages
    10 Kafka servers - tracking message aggregation and batch insert
    * Application servers - customer front end, middleware for order/customs
    - 60 virtual machines across 20 physical servers
    - Tomcat - Java services
    - Nginx - static content
    - Batch servers
    * Storage appliances
    - iSCSI for virtual machine (VM) hosts
    - Fibre Channel storage area network (FC SAN) - SQL server storage
    Network-attached storage (NAS) image storage, logs, backups
    * 10 Apache Hadoop /Spark servers
    - Core Data Lake
    - Data analysis workloads
    * 20 miscellaneous servers
    - Jenkins, monitoring, bastion hosts,
    Business Requirements
    * Build a reliable and reproducible environment with scaled panty of production.
    * Aggregate data in a centralized Data Lake for analysis
    * Use historical data to perform predictive analytics on future shipments
    * Accurately track every shipment worldwide using proprietary technology
    * Improve business agility and speed of innovation through rapid provisioning of new resources
    * Analyze and optimize architecture for performance in the cloud
    * Migrate fully to the cloud if all other requirements are met
    Technical Requirements
    * Handle both streaming and batch data
    * Migrate existing Hadoop workloads
    * Ensure architecture is scalable and elastic to meet the changing demands of the company.
    * Use managed services whenever possible
    * Encrypt data flight and at rest
    Connect a VPN between the production data center and cloud environment
    SEO Statement
    We have grown so quickly that our inability to upgrade our infrastructure is really hampering further growth and efficiency. We are efficient at moving shipments around the world, but we are inefficient at moving data around.
    We need to organize our information so we can more easily understand where our customers are and what they are shipping.
    CTO Statement
    IT has never been a priority for us, so as our data has grown, we have not invested enough in our technology. I have a good staff to manage IT, but they are so busy managing our infrastructure that I cannot get them to do the things that really matter, such as organizing our data, building the analytics, and figuring out how to implement the CFO' s tracking technology.
    CFO Statement
    Part of our competitive advantage is that we penalize ourselves for late shipments and deliveries. Knowing where out shipments are at all times has a direct correlation to our bottom line and profitability. Additionally, I don't want to commit capital to building out a server environment.
    Flowlogistic's management has determined that the current Apache Kafka servers cannot handle the data volume for their real-time inventory tracking system. You need to build a new system on Google Cloud Platform (GCP) that will feed the proprietary tracking software. The system must be able to ingest data from a variety of global sources, process and query in real-time, and store the data reliably. Which combination of GCP products should you choose?
  • Question 88

    You work for a large financial institution that is planning to use Dialogflow to create a chatbot for the company's mobile app You have reviewed old chat logs and lagged each conversation for intent based on each customer's stated intention for contacting customer service About 70% of customer requests are simple requests that are solved within 10 intents The remaining 30% of inquiries require much longer, more complicated requests Which intents should you automate first?
  • Question 89

    You have spent a few days loading data from comma-separated values (CSV) files into the Google BigQuery table CLICK_STREAM. The column DTstores the epoch time of click events. For convenience, you chose a simple schema where every field is treated as the STRINGtype. Now, you want to compute web session durations of users who visit your site, and you want to change its data type to the TIMESTAMP. You want to minimize the migration effort without making future queries computationally expensive. What should you do?
  • Question 90

    You need to create a near real-time inventory dashboard that reads the main inventory tables in your BigQuery data warehouse. Historical inventory data is stored as inventory balances by item and location.
    You have several thousand updates to inventory every hour. You want to maximize performance of the dashboard and ensure that the data is accurate. What should you do?