Question 156

If a dataset contains rows with individual people and columns for year of birth, country, and income, how many of the columns are continuous and how many are categorical?
  • Question 157

    You are developing an application that uses a recommendation engine on Google Cloud. Your solution
    should display new videos to customers based on past views. Your solution needs to generate labels for
    the entities in videos that the customer has viewed. Your design must be able to provide very fast filtering
    suggestions based on data from other customer preferences on several TB of data. What should you do?
  • Question 158

    You are deploying 10,000 new Internet of Things devices to collect temperature data in your warehouses globally. You need to process, store and analyze these very large datasets in real time.
    What should you do?
  • Question 159

    Your company is migrating their 30-node Apache Hadoop cluster to the cloud. They want to re-use
    Hadoop jobs they have already created and minimize the management of the cluster as much as possible.
    They also want to be able to persist data beyond the life of the cluster. What should you do?
  • Question 160

    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?