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BLANK is capturing raw data streaming from various sources and storing it

Data Ingestion

What are the some examples of a key value database?

Data cache - collecting from website Session management Product management

What type of job role is tasked with managing and organizing data, while also monitoring for trends or inconsistencies that will impact business goals. It's a highly technical position, requiring experience and skills in areas like programming, mathematics, and computer science. But also need soft skills to communicate data trends to others in the organization and to help the business make use of the data it collects.

Data engineers

What task is the process of capturing raw data

Data ingestion

What are the typical tasks of an analytical system?

Data ingestion, Data transforming, data processing, data query, data visualizations

Why are distributed databases are widely used in many organizations?

Data is stored across different physical locs It may be held in multiple computers located in the same physical loc. Ex: a datacenter If there is an update - it may take time to update to a distributed database across multiple locs

After data is ingested and transformed, what is the task of quering and analyzing?

Data query

What are the four types of categories that are differences between batch and streaming data?

Data scope, Data size, Performance, Analysis

What is semi-structured data?

Data structure is defined within the actual data by fields, contains fields, fields don't have to identify a certain entity

What task is looking at raw data, reviewing formatting, eliminating anomalies?

Data transforming

What task is visualizing the data that can be useful to examine that data?

Data visualization

What are the disadantages of a key value database?

Disadvantages: Consistency needs to be given consideration as transactional updates across multiple entities aren't guaranteed Any relationships between rows would have to be done externally to the table Difficult to sort non key data

Give an example of a non-relational database

Document database

In a BLANK, each document has a unique ID, but the fields in the documents are transparent to the database management system

Document databse

Which NoSQL database describes this? Each document has a unique ID Binary document file Keys are used to locate and individual documents Documents are organized by tags, metadata, or collections If there are updates, only where it needs to be changed

Document store

What is unstructured data?

Does not naturally contain fields Examples: video, audio,media streams Often used data form and categorize or identify "structures" Frequently used in combination with machine learning or Cognitive Services capabilities to "extract data" by using

What is semi-structured

Doesn't reside in relational data but has some structure to it. Ex: doc in javascript, key-value stores, graph databases

Which ACID role does this fall under? guaranteed that once a transaction has been committed, it will remain committed even if there's a system failure such as power outage or crash

Durability

What does atomic mean?

Either all operations in the sequence must be completely successful, if something was to go wrong, all operations run so far in a sequence must be undone.

What are some examples of streaming data?

Financial institution tracks changes in the stock market in real time, computes value-at-risk, automatically rebalanced portfolios Online gaming company collects real-time data about player-game interactions and feeds the data into its gaming platform. Analyzes the data in real time - incentive for players to stay engaged real -estate website tracks a subset of data from consumers' mobile devices and makes real-time property recommendations of properties to visit based on their geo-location

What Azure service describes below: Azure enables you to create a virtual infrastructure in the cloud that is much like the way an on-premises data center might work You can create a set of virtual machines, connect them using a virtual network, and add a range of virtual devices Much like an on site premises but you don't have to purchase the hardware and worry about maintaining the hardware But you're still responsible for the day to day operations, such as installing and configuring the software, taking backup and restoring data as needed

IaaS

What service describes below: Run any software for which you have appropriate licenses using this approach Best for migrations and applications requiring operating system-level access SQL virtual machines are "lift and shift". You can copy your on-premises solution directly to a virtual machine in the cloud.

IaaS

Which cloud service is the best for migrations and operations requiring level access

IaaS

Where is the Azure SQL Database service located?

In the cloud

IaaS - stands for

Infrastructure as a service

What does IaaS stand for?

Infrastructure as a service

What is IaaS

Infrastructure as a service. (IaaS) is an instant computing infrastructure, provisioned and managed over the internet. It's one of the four types of cloud services, along with software as a service (SaaS), platform as a service (PaaS), and serverless.

What are the common non-relational database use cases?

IoT (internet of things) and Telematics: Retail and marketing Gaming Web and Mobile applications

Which non relational database case would this fall under? These systems typically ingest large amounts of data in frequent bursts of activity. Non-relational databases can store this information very quickly. The data can then be used by analytics services such as Azure Machine Learning, Azure HDInsight, and Microsoft Power BI. Additionally, you can process the data in real-time using Azure Functions that are triggered as data arrives in the database.

IoT and telematics.

Which ACID role does this fall under? the funds have been deducted from the acct, but not yet credited to another

Isolation

Which ACID role is this? Ensures concurrent execution of transactions leaves the database in the same state that would have been obtained if the transactions were executed sequentially

Isolation

What are some examples of when batch processing is done?

It can be set at a scheduled time, or business decision makers will decide on a "low point" or "idle" point , or when a certain amt of data has arrived

What is an Index?

It helps you search up info in a table

Why do indexes come at a cost?

It increases storage space and must be maintained

What are the common ways to store semi-structured data?

JSON - Java script object notation AVRO - Avro is an open source project that provides data serialization and data exchange services for Apache Hadoop. These services can be used together or independently. Avro facilitates the exchange of big data between programs written in any language.It uses JSON for defining data types and protocols, and serializes data in a compact binary format ORC - The Optimized Row Columnar (ORC) file format provides a highly efficient way to store Hive data. ... It was designed to overcome limitations of the other Hive file formats. Using ORC files improves performance when Hive is reading, writing, and processing data. Organize data in columns rather than rows Parquet - Apache Parquet is a free and open-source column-oriented data storage format of the Apache Hadoop ecosystem. It is similar to the other columnar-storage file formats available in Hadoop namely RCFile and ORC. It is compatible with most of the data processing frameworks in the Hadoop environment

The term JSON stands for BLANK ; it's the format used by JavaScript applications to store data in memory, but can also be used to read and write documents to and from files.

JavaScript Object Notation

A BLANK can ingest large amounts of data rapidly

Key value sstore

Give some examples of IoT (internet of things) and Telematics:

Large amts of data and frequent bursts of activity Process data in real time Use MS Azure services - Azure Cosmo DB, Analytics, Power BI Examples of IoT - alarm, Traeger grill

What are the advantages of batch processing?

Large volumes of data can be processed It can be scheduled to run at a time when computers or systems or idle such as overnight

What is NoSql?

Loose term, to describe non-relational Documents, rather than tables Fall under four non-relational databases which is column/wide value, document store, graph, key value store

As the head of sales team, would a manager prefer to see daily transactions (transactional info) or monthly report to identify trends and insight (analytical info)? Why or why not?

Monthly report. The purpose of an analytical workload is to capture trends and insight, this will allow the manager of the sales team to see the bigger picture.

BLANK data is an all-encompassing term that means anything not structured as a set of tables

Non-relational data i

What database does not impose a schema on data? Instead, they focus on the data itself rather than how to structure it. This approach means that you can store information in a natural format, that mirrors the way in which you would consume, query and use it.

Non-relational databases

A process when you have to split an entity to more than one table

Normalization

What is the name of the process where typically the end result is that your data is split into a large number of narrow, well defined tables?

Normalization

Splitting tables out into separate groups of columns like this is called what?

Normalized

What is unstructured data?

Not all data is structured or even semi-structured. Ex. audio and video files, binary data values might not have a specific structure

What applications are focused on transaction- oriented tasks that process a large number of transactions per minute.

OLTP

these are examples of what for relational databases: Banking solutions Online retails applications Flight reservation systems Online purchasing applications

OLTP

Work performed by transactional systems is often referred to as what?

OLTP - Online transactional processing

What are the benefits of on-premises for data management system?

On premises Personal control of data security Low operational expenditure

Why is transactional info an integral part of analytical info?

One goes with the other, both rely on each other. Efficiency on how it's been handled is key

What does OLTP stand for?

Online Transaction Processing

A what uniquely identifies each row in a table. No two rows share the same what?

PRIMARY key

Azure SQL databases, virtual databases describe what

PaaS

What service describes the below? Rather than creating a virtual infrastructure and installing and managing the database software yourself, a what is the route to take You specify the resources that you require (based on how large you think your database will be, number of users, and performance you require and Azure automatically creates the necessary virtual machines, networks, and other devices for your You can usually scale up or down (increase or decrease the size and number of resources

PaaS

To help ensure fast access, Azure Table Storage splits a table into blank. Blank is a mechanism for grouping related rows, based on a common property or partition key. Rows that share the same partition key will be stored together. Partitioning not only helps to organize data, it can also improve scalability and performance:

Partitions, Partitioning

PaaS - stands for what?

Platform as a service

What does PaaS stand for?

Platform as a service

What is the act of setting up the database service called?

Provisioning

What are the three different levels to access data?

Read only, read/write, and owner privledge

What are the characteristics of a graph store?

Relationships between entities Nodes and edges Enable an application to effectively perform Simple to perform queries Can perform complex analyses API (Application Programming Interface) standard language for graph database

Which non relational database case would this fall under? Microsoft uses CosmosDB for its own ecommerce platforms that run as part of Windows Store and Xbox Live. It's also used in the retail industry for storing catalog data and for event sourcing in order processing pipelines.

Retail and marketing

IaaS

SQL server in Azure virtual machines, virtualized machines describe what?

What is a benefit of PaaS instead of an on premises system?

Scalability - you can scale up or out without having to worry about procuring your own hardwared

What are the benefits of a data management system on the cloud?

Scalable Hardware maintained Software maintained Low capital expenditure

What are the characteristics of key value storage

Scalable, key-value store in the cloud. You create a table using an Azure storage acct Items are referred to as rows, and fields are known as columns Enables you to store semi-structured data. Unlike traditional relational databases, each row DOES NOT have to be the same number of columns. All rows require a key, but apart from that the columns in each row can vary Azure table has no concepts of relationship, no require PK, FK, stored index, secondary index For example example, using Azure Table Storage provides much faster access to the details of a customer because the data is available in a single row, without requiring that you perform joins across relationships.

BLANK data is data that contains fields. The fields don't have to be the same in every entity. You only define the fields that you need on a per-entity basis.

Semi-structured

Doc in javascript, key-value stores, graph databases are examples of what class of data?

Semi-structured

What does SaaS stand for

Software as a service

Benefits of non relational data

Store large amt of data with little structure Useful for data that contains video, audio, images, temporal information, large volumes of free text, encrypted information, or other types of data that aren't inherently relational

Give an example of Retail and marketing

Storing catalog data

Data ingestion is what type of processing?

Streaming

What is the difference between batch and streaming data?

Streaming - processing data as it arrives Batch processing - Buffering and processing the data in groups

What type of processing is each new piece of data is processed when it arrives?

Streaming data

What type of processing would be used for time-critical operations? Give an example.

Streaming processing. Example: systems that monitor a building for smoke and heat needs to trigger alarms and unlock doors to allow residents to escape immediately

Tabular data, same number of rows and columns are examples of what class of data?

Structured

What class of data is typically stored in a relational database such as SQL service or Azure SQL Database - this service runs in the cloud.

Structured

What type of workload is a document store database?

System capacity - view, editing, sharing Doesn't have to be structured Semi-structured, business streamline

Why are Database systems that process transactional workloads are inherently complex?

There are many different things happening all at once. Many systems apply relational consistency and isolation by applying locks to data when it's updated - prevents another process from reading that data until the lock is released

What are the disadvantages of batch processing?

Time delay between ingesting the data and getting the results Batch inputs must be ready before a batch can be processed. Careful checks must be done. If there is an issue, it could create delays

What is the purpose to normalize data?

To reduce storage, avoid data duplication, improve data quality

What is the primary role of relational databases?

Transaction processing

Records transactions, movement of money between bank accounts, retail system are examples of what type of processing system?

Transactional system

What are the two elements in a key value data store?

Two elements: key and a value Key - identifies the item Value - holds the data for the item

Azure portal can typically do what?

Typical configuration tasks such as increasing the database size, creating a new database, and deleting an existing database

What is structured data?

Typically tabular data that is represented by rows and columns in a database. Databases that hold tables in this form are relational databases (mathematical term relation refers to an organized set of data held as a table). Each row in a table has the same set of columns. Ex: table with customer id and contact info

Audio and video files are examples of what class of data?

Unstructured

What is the purpose of a view?

Views are created to simplify the query, combine relational data into a single pane view

Which non relational database case would this fall under? A non-relational database such as Azure Cosmos DB is commonly used within web and mobile applications, and is well suited for modeling social interactions, integrating with third-party services, and for building rich personalized experiences. The Cosmos DB SDKs (software development kits) can be used to build rich iOS and Android applications using the popular Xamarin framework.

Web and mobile applications

PaaS

What service describes the below? Azure handles the scaling or you and you don't have to manually add or remove virtual machines, or perform any other form of configuration. Azure offers several PaaS solutions for relational databases such as Azure SQL Database, Azure Database for PostgreSQL Azure Database for MySql These services run managed versions of the database management systems on your behalf, you just connect to them, create your databases, and upload your data. There may be restrictions often due to security issues

What are the reasons why batch processing may NOT be effective?

When real time is required, small amounts of data (ex. financial stock ticker)

What can you do with IaaS

You can create a virtual machine, run them together using a virtual network, and add a range of virtual devices. In many ways, this approach is similar to run your systems inside an organization, except that you don't have to worry about buying or maintaining the hardware. However, you're still responsible for the day to day operations. It's a way to house and manage systems in the cloud.

What are two two options when moving your operations and databases to the cloud.

You can select the IaaS approach, or PaaS

What is data?

a collection of facts such as numbers, descriptions and observations used in decision making. Classified as structured, non-structured, and semi-structured

Some relations database management systems also support what? A what? physically reorganized a table by the index key In data management systems that support the, a table can only have a single clustered index

clustered index

The partition key and row key effectively define a what

clustered index over the data.

The most widely used BLANK database management system is Apache Cassandra. Azure Cosmos DB supports the column-family approach through the Cassandra API.

column family

Which database fits the below description Workload: Low latency, easy to access Easy to move around Examples: Census bureau Breakdown minute tables

column/wide database

Which database fits the description? Data is stored in cells grouped in columns rather than rows as data

column/wide database

Which database has the characteristics below? Organizes data into rows and columns Store structure data storage into collectives Read a single column family w/o reading through all the data Scalable

column/wide store database

A relational database has all rows in the same table have the same number of what

columns

The rows in a table have one or more columns that define that properties of the entity, such as customer name and address. All rows in the same table have the same number of what?

columns

What are the reasons that batch processing are effective?

connection to a main frame system, vast amounts of data, doesn't have to be real time

What is the SQL demand for the following? create a table to store data in a table to modify data in a table to remove rows from a table retrieves data from a table

create, insert, update, delete, select

What type of processing is simply the conversion of raw data to meaningful info through a process

data processing

How is data stored? Depends on what?

depends on structured, semi-structured, and unstructured data

Most BLANK will ingest large volumes of data more rapidly than a relational database, but aren't as optimal as a key-value store for this type of processing. The focus of a document database is its query capabilities.

document databases

In a document store, an application can retrieve documents by using the BLANK. The key is a unique identifier for the document. Some document databases create the document key automatically. Others enable you to specify an attribute of the document to use as the key. The application can also query documents based on the value of one or more fields. Some document databases support indexing to facilitate fast lookup of documents based on one or more indexed fields.

document key

A BLANK does not require that all documents have the same structure. This free-form approach provides a great deal of flexibility. Applications can store different data in documents as business requirements change.

document store

What type of database are the examples for? Product catalog Content management Inventory management

document store

A blank describes the information known or to be held

entity

A table contains rows, each row contains a what?

entity

In a relational database, you model characteristics of a what as tables

entity

The what columns reference or link to the primary key of another table, and are used to maintain the relationships between tables.

foreign key

What is allowed in owner priviledge access?

full access to the data including managing the security, add new users, remove access to existing users

What type of workload does the database have below? High level and low level - organizational Social graphs

graph

Which database has a collection of nodes and edges?

graph

Which database is mostly used for social networks?

graph

Azure Cosmos DB supports WHAT using the Gremlin API. The Gremlin API is a standard language for creating and querying graphs.

graph databases

What is Azure Table Storage?

implements the NoSQL key-value model. In this model, the data for an item is stored as a set of fields, and the item is identified by a unique key.

Azure SQL database provides database services in where?

in the cloud

A what helps you search for data in a table.

index

When you create a what?, you specify a column for a table, and the what? contains a copy of this data in a sorted order, with pointers to the corresponding rows in the table When the user runs a query that specifies this column in the WHERE clause, the database management system can use this index to fetch the data more quickly that if it had to scan through the entire table row by row

index

A typical relational database contains other structures that help to optimize data organization and improve the speed of access - two types of structures are what?

index and view

What is this referring to?, it might consume additional storage space and it must be maintained. The additional work can slow down insert, upcate, and delta operations and incur additional processing charges.

indexes

More advanced non-relational systems support BLANK, in a similar manner to an index in a relational database. Queries can then use the BLANK to identify and fetch data based on non-key fields.

indexing

What are edges?

information about the relationships between objects

You can combine the data from multiple tables in a query using a what? A what? spans the relationships between tables, enabling you to get data from more than one table at a time.

join operation

What is the simplest type of NoSql database?

key value

What type of NoSql describes the below? Hold a single serialized for each key, comes from a table value Supports simple query, insert, and delete operations Optimize applications, performing simple lookups Store data that does not require complex joins, foreign keys,or stored procedures Good way to capture event logging and performance Writing data is fast, static

key value

You are building a system that monitors the temperature throughout a set of office blocks, and sets the air conditioning in each room in each block to maintain a pleasant ambient temperature. Your system has to manage the air conditioning in several thousand buildings spread across the country or region, and each building typically contains at least 100 air-conditioned rooms. What type of NoSQL data store is most appropriate for capturing the temperature data to enable it to be processed quickly?

key value - stores large amts of data quickly

Azure Table storage is an example of a BLANK . Cosmos DB also implements a key-value store using the Table API.

key-value store

Give an example of gaming when non relational databases are used?

leadership board, Must be fast, handle massive spike

The characteristic below describe what kind of data? Store large amt of data with little structure Useful for data that contains video, audio, images, temporal information, large volumes of free text, encrypted information, or other types of data that aren't inherently relational

non relational

What type of database enables you to store data in a format that more closely matches the original structure

non relational

In a BLANK database Each entity in a BLANK only has the fields it needs, and these fields can vary between different entities.

non relational database

NoSQL is a rather loose term that simply means BLANK

non-relational

What type of database enables you to store data in a format that more closely matches the original structure

non-relational

In a blank system you store the information for entities in collections or containers rather than relational tables

non-relational system

The term BLANK means that the database management system just sees the value as an unstructured block. Only the application understands how the data in the value is structured and what fields it contains. The opposite of BLANK is transparent. If the data is transparent, the database management system understands how the fields in the data are organized. A BLANK table is an example of a transparent structure.

opaque, opaque, relational

What is the purpose of an index?

optimize search inquiry for faster data retrieval, reduces the amt of pages that need to be read to retrieve the data in a SQL statement, data is retrieved by joining tables together in a query

The key in an Azure Table Storage table comprises two elements; the blank that identifies the blank containing the row (as described above), and a row key that is unique to each row in the same partition.

partition key

Every table should have what? . The what indicates the column (or combination of columns) that uniquely identify each row.

primary key

Data in rows and columns is what called of database?

relational

Databases holding cust info, can have more than one address is what type of database?

relational

What type of databases are used to track inventories, process ecommerce transactions, manage huge amounts of mission-critical customer information?

relational database

ecommerce systems, but one of the major use cases for using relational database is OLTP (online translation processing) are common uses of what?

relational database

A BLANK database restructures the data into a fixed format that is designed to answer specific queries. When data needs to be ingested very quickly, or the query is unknown and unconstrained, a BLANK database can be less suitable than a non-relational database.

relational,

Give an example of an analytical workload?

report on monthly sales

Non-relational data generally falls into which two categories;

semi-structured and non-structured

Most relational databases support what. You use what to create tables, update, and delete rows in tables, and to query tables.

sql

You can defined relationships between tables using PK and FK and you can access the data in tables using what?

sql

What type of processing is data processed as individual pieces rather than being processed a batch at a time

streaming

All data is what. Entities are modeled as tables, each row has an entity, each entity is defined as a column

tabular

What does latency mean?

the time taken for the data to be received and processed

What is allowed in read-only access?

users can read data but can't modify any existing data or create new data

What is allowed in read/write access?

users can view and modify existing data

A what is a virtual table based on the result set of a query.

view

What type of structure are the characteristics below referring to? You can think of a view as a window on specific rows in an underlying table You can query the view and filter the data in much the same way as a table A view can also join tables together

view

Give an example of a relational databse

A database holding customer info

What are nodes?

A graph contains nodes (information about objects)

What type of table has few columns, with references from one table to another

A narrow table

Explain nodes and edges?

A node represents an an entity. An edge represents the relationships or connections between entities

Give an example of a disadvantage of a non-relational database

A relational database, if there is an address change, you would only need to change it once. For non-relational you would have to change it in two different areas. In a doc database, the address would be duplicated. This route would increase storage space, but also make maintenance more complex, such as address, change, you would have to modify two docs

What is a view of a table?

A view is a virtual table based on the result of query

Foreign key

A what references rows in another, related table. Each value in the foreign key should be a shown with the same value in the corresponding PK column in the other table

Transaction database must follow the what acronym?

ACID

Data ingestions, data transformation, data querying, data visualization are typical tasks of what type of system?

Analytical

To support business users who need to query data and gain BIG PICTURE view of the info held in a database is what type of system?

Analytical

What type of system captures data and use it to generate insights?

Analytical

Data processing often falls into what two data processing sytems?

Analytical and Transaction processing systems

What are the characteristic of analytical workloads?

Analytical workloads typically read-only systems that store vast volumes of historical data or business metrics, such as sales performance and inventory levels Used for data analysis and decision making Business information Snapshot of the data at a given point of time or a series of snapshots - business makers want the bigger picture

Either all operations in the sequence must be completely successful, if something was to go wrong, all operations run so far in a sequence must be undone. This type of sequence of operations is called what?

Atomic

Transaction is a sequence of operations that are what? either all operations in the sequence must be completely successful, if something was to go wrong, all operations run so far in a sequence must be undone.

Atomic

What guarantees that each transaction is treated as a single unit, either it succeeds completely or fails completely.

Atomocity

ACID stands for what?

Atomocity, Consistency, Isolation, Durability

Using Azure, where can you store unstructured data such as video or audio files?

Azure Blob storage

BLANK is a multi model database and supports key value, document, graph, and column value models

Azure Cosmos DB

BLANK provides a graph database service via the Gremlin API on a fully managed database service designed for any scale.

Azure Cosmos DB

BLANK provides the Table API for applications that are written for Azure Table storage and that need premium capabilities like: Turnkey global distribution. Dedicated throughput worldwide (when using provisioned throughput). Single-digit millisecond latencies at the 99th percentile. Guaranteed high availability. Automatic secondary indexing.

Azure Cosmos DB

Using Azure, where can you store semi structured data such as docs?

Azure Cosmos DB

Give an example of Web and Mobile applications when non relational databases are used?

Azure Cosmos DB Integrating 3rd party services

Non-relational systems such as BLANK , support indexing even when the structure of the indexed data can vary from record to record.

Azure Cosmos DB (a non-relational database management system available in Azure)

Where can you dynamically manage and adjust resources such as the data storage size and the number of cores available for the database processing. These tasks would require the support of a system administrator if you were running the database on-premises.

Azure portal

You can manage Azure SQL database using what? .

Azure portal

Votes counted when completed is an example of what type of processing?

Batch

What type of processing is data is collected into a group. The whole group is then processed at a future time in a batch.

Batch

Describe performance in batch and streaming data

Batch - the latency for batch processing is typically a few hours Stream typically occurs immediately - order of seconds or milliseconds

Describe analysis in batch and streaming data

Batch - typically for complex analytics Stream - simple response functions: aggregates, or calcs such as rolling averages

Describe data size in batch and streaming data

Batch is suitable for handling large datasets efficiently Stream is for individual records or micro batches (few records)

Describe data scope in batch and streaming data

Batch processing can process all the data in the data set Streaming typically only has access to the most recent data received, or within a rolling time window (ex. 30 seconds)

What does the acronym Blob stand for?

Binary Large Object

What are the three ways data is generally structured?

Classified as structured, non-structured, and semi-structured

In this example, what ACID role is this? bank transfer. If funds were added to the account, then there must be a corresponding deduction of funds somewhere or a record that describes where the funds come from - can't suddenly lose (or create money)

Consistency

What ensures that a transaction can only take the data in the database from one valid state to another.

Consistency

BLANK supports several common models of non-relational database, include key-value stores, graph databases, document databases, and column family stores.

Cosmos DB


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