Edited, memorised or added to reading list

on 07-Nov-2019 (Thu)

Do you want BuboFlash to help you learning these things? Click here to log in or create user.

statusnot read reprioritisations
last reprioritisation on reading queue position [%]
started reading on finished reading on




La investigaci´on en Educaci´on matem´atica ha estado principalmente centrada en los aspectos cognitivos, dejando un poco de lado los aspectos afectivos.

statusnot read reprioritisations
last reprioritisation on reading queue position [%]
started reading on finished reading on

pdf

cannot see any pdfs




la determinaci´on, las emociones, juegan un papel importante.

statusnot read reprioritisations
last reprioritisation on reading queue position [%]
started reading on finished reading on

pdf

cannot see any pdfs




Flashcard 4518859640076

Question
In AWS, you use [...] if you want a fast in-memory database used to take load off of your main OLTP db for repeat queries.
Answer
ElastiCache


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521153662220

Question
Теорема 4.2 (критерий Коши равномерной сходимости функционально- го ряда)
Answer
[default - edit me]


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

pdf

cannot see any pdfs







Flashcard 4521154710796

Question
[default - edit me]
Answer
Для того чтобы ∞ P k=1 u k (x) X ⇒ S(x), необходимо и достаточно, чтобы ∀ε > 0 ∃N = N(ε) (не зависящий от x ∈ X) такой, что ∀n > N, ∀p ∈ N и ∀x ∈ X выполнялось неравенство |S n+p (x) − S n (x)| = ¯ ¯ ¯ ¯ ¯ n+p X k=n+1 u k (x) ¯ ¯ ¯ ¯ ¯ < ε


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

pdf

cannot see any pdfs







Flashcard 4521155759372

Question
In AWS, for DynamoDB, the main building blocks are [...] , which contain Items, which are in turn made of Attributes
Answer

Tables

^^^ e.g.:
"People" Table that has following "person" Item:
{
"PersonID": 101,
"LastName": "Smith",
"FirstName": "Fred",
"Phone": "555-1234"
}
The table is People, the Item is the person JSON above, and the attributes are the individual elements of the JSON (e.g. LastName, FirstName, etc)


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521157856524

Question
In AWS, for DynamoDB, the main building blocks are Tables, which contain [...]s, which are made of Attributes
Answer

Items

^^^ e.g.:
"People" Table that has following "person" Item:
{
"PersonID": 101,
"LastName": "Smith",
"FirstName": "Fred",
"Phone": "555-1234"
}
The table is People, the Item is the person JSON above, and the attributes are the individual elements of the JSON (e.g. LastName, FirstName, etc)


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521159953676

Question
In AWS, for DynamoDB, the main building blocks are Tables, which contain Items, which are made of [...]s
Answer

Attributes

^^^e.g.:
"People" Table that has following "person" Item:
{
"PersonID": 101,
"LastName": "Smith",
"FirstName": "Fred",
"Phone": "555-1234"
}
The table is People, the Item is the person JSON above, and the attributes are the individual elements of the JSON (e.g. LastName, FirstName, etc)


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521162050828

Question
In AWS, DynamoDB uses the [...] [...] 's value as input to an internal hash function whose output determines the physical storage block internal to DynamoDB in which the item will be stored.
Answer

Partition Key

^^ e.g. In "Music" table, the Partition key is "Artist" and Sort key is "songName", both attributes together are the primary key (unique identifiers you can query on).


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521164147980

Question
In AWS, DynamoDB uses the partition key's value as input to an internal hash function whose output determines the physical storage block internal to DynamoDB in which the item will be stored. All items with the same partition key value are stored together, in order by the [...] [...] value.
Answer

Sort Key

^^ e.g. In "Music" table, the Partition key is "Artist" and Sort key is "songName", both attributes together are the primary key (unique identifiers you can query on).


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521166245132

Question
In AWS, for DynamoDB, the primary key always has the [...] key and optionaly a Sort key.
Answer

Partition

^^ e.g. In "Music" table, the Partition key is "Artist" and Sort key is "songName", both attributes together are the primary key (unique identifiers you can query on).


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521168342284

Question
In AWS, for DynamoDB, the primary key always has the Partition key and optionaly a [...] key.
Answer

Sort

e.g. In "Music" table, the Partition key is "Artist" and Sort key is "songName", both attributes together are the primary key (unique identifiers you can query on).


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521170439436

Question
In AWS, for DynamoDB, you can only query on the prmiary key (Partition key or Parition key/sort key combo) unless you create additional [...] [...]
Answer
Secondary Indexes


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521172536588

Question
In AWS, for DynamoDB, you get fast speed because data is stored on [...] storage
Answer
SSD


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521174633740

Question
In AWS, for DynamoDB, you get your data spread across [...] geographically distinct data centres (AZs).
Answer
3


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521176730892

Question

In AWS, for DynamoDB, by deafult you get [...] [...] Reads, which means when you write new data or update data, you will be able to read the updated data within about 1 second (anything earlier may not return the latest data update)

Answer

Eventual Consistent

^^^ but stronly consistent Reads also available (but not by deafault), where as soon as you get 200 back from the write call, you can read right away the updated data.


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521178828044

Question
In AWS, Redshift is a super fast OLAP relational db solution because it stores and compresses data by [...]s (THINK WHY THIS IS GOOD/FAST)
Answer

Columns

^^^ so it takes less space to store and also better compression algorithms can be used as columns have similar data


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521180925196

Question
In AWS, Redshift is a super fast OLAP relational db solution because it stores and compresses data by column and also because it employs [...acronym here...] , where there is a leader node that takes the queries from the client an distributes it to several compute nodes.
Answer

MPP (Massive Parallel Processing)


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521183022348

Question
In AWS, Redshift is a super fast OLAP relational db solution because it stores and compresses data by column and also because it employs MPP (Massive Parrallel Processing), where there is a leader node that takes the queries from client an distributes it to several [...] nodes.
Answer
Compute


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521185119500

Question
In AWS, Reshift is available in [...] AZ.
Answer
1


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521187216652

Question
In AWS, Redshift can do automated backups where you can restore your data to within a second of between 0 to [...] retention days
Answer
35


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521189313804

Question
In AWS, Redshift keeps [...] copies of your data (think where each copy is stored)
Answer

3

Redshift keeps 3 copies of your data, the data on the compute node, as well as a replica on the compute node and a backup on S3


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521191410956

Question
In AWS, Redshift can support Disaster Recovery by asynchronosly replicating your snapshots to S3 in another [...]
Answer
Region


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521580170508

Question
que llevaba el impresionante título de ((Sobre las [...] formalmente indecidibles de los Principia Mathematica y sistemas conexos)).
Answer
proposiciones


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Parent (intermediate) annotation

Open it
que llevaba el impresionante título de ((Sobre las proposiciones formalmente indecidibles de los Principia Mathematica y sistemas conexos)).

Original toplevel document (pdf)

cannot see any pdfs







Flashcard 4521581219084

Tags
#Gödel
Question
que llevaba el impresionante título de ((Sobre las proposiciones [...] indecidibles de los Principia Mathematica y sistemas conexos)).
Answer
formalmente


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Parent (intermediate) annotation

Open it
que llevaba el impresionante título de ((Sobre las proposiciones formalmente indecidibles de los Principia Mathematica y sistemas conexos)).

Original toplevel document (pdf)

cannot see any pdfs







Flashcard 4521582267660

Question
que llevaba el impresionante título de ((Sobre las proposiciones formalmente [...] de los Principia Mathematica y sistemas conexos)).
Answer
indecidibles


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Parent (intermediate) annotation

Open it
que llevaba el impresionante título de ((Sobre las proposiciones formalmente indecidibles de los Principia Mathematica y sistemas conexos)).

Original toplevel document (pdf)

cannot see any pdfs







Flashcard 4521583316236

Question
que llevaba el impresionante título de ((Sobre las proposiciones formalmente indecidibles de los [...] y sistemas conexos)).
Answer
Principia Mathematica


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Parent (intermediate) annotation

Open it
que llevaba el impresionante título de ((Sobre las proposiciones formalmente indecidibles de los Principia Mathematica y sistemas conexos)).

Original toplevel document (pdf)

cannot see any pdfs







Flashcard 4521584364812

Question
que llevaba el impresionante título de ((Sobre las proposiciones formalmente indecidibles de los Principia Mathematica y [...])).
Answer
sistemas conexos


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Parent (intermediate) annotation

Open it
que llevaba el impresionante título de ((Sobre las proposiciones formalmente indecidibles de los Principia Mathematica y sistemas conexos)).

Original toplevel document (pdf)

cannot see any pdfs







Flashcard 4521592753420

Question
In AWS, [...] is Amazon's own MySQL/PostgreSQL campatible RDS DB engine that combines the cost-effectiveness of open-source DB solutions with the reliability of commercial DBs
Answer
Aurora


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521594850572

Question
In AWS, Aurora (Amazon's own DB) is a good option for your RDS engine, because it has very high availability and durability as it keeps at least [...] total copies of you data, [...] copies in at least [...] different Availablility Zones <--(A different number for each occulsion obviously)
Answer
6 = 2 x 3


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521596947724

Question
In AWS, Aurora (Amazon's own DB) is a good option for your RDS engine because it supports 2 types of read replicas, MySQL replicas, and Aurora Replicas, which support [...] [...] (only Aurora replicas do, not MySQL)
Answer
Automated Failovers


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521599044876

Question
In AWS, for RDS, when you choose Aurora, automated backups are turned on by default, but you can also take snapshots and share them with other [...] [...]
Answer
AWS Accounts


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521601142028

Question
In AWS (and computing in general), if you have an E-commerce site and you want to show the user the top 10 most purchased items (which does not change all that often), instead of querying the info from the main OLTP DB (like RDS MySQL) each time, you would instead use your [...] [...] DB.
Answer

In-memory Cache

^^ e.g. ElastiCache


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521604287756

Question
In AWS, for your ElastiCache engine, you would choose [...] , if you just want a simple/easy to use in-memory cache that is horizontally scalable (but you don't care about advanced features like multi AZ/complex data types/backup and restore/etc).
Answer
Memcached


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521606384908

Question
In AWS, for your ElastiCache engine, you would choose [...] , if you have some advanced features you want like Multi-AZ, Backup and Restore, Persistence, Advanced data types, complex ranking/sorting.
Answer
Redis


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521608482060

Question
In AWS, for your ElastiCache engine, you would choose Redis, if you have some advanced features you want like [...]-[...] , Backup and Restore, Persistence, Advanced data types, complex ranking/sorting.
Answer
Multi-AZ


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill






Flashcard 4521610579212

Question
In AWS, for your ElastiCache engine, you would choose Redis, if you have some advanced features you want like Multi-AZ, [...] and [...] , Persistence, Advanced data types, complex ranking/sorting.
Answer
Backup and Restore


statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill