AWS Certified Solutions Architect –
Professional Complete Solution
2022
Data that is durable and sticks around after reboots/restarts/power cycles
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(Glacier/RDS) - Answer- Persistent Data Store
Data that is temporarily stored and passed to another process or persistent data
store (SQS/SNS) - Answer- Transient Data Store
Data that is lost when stopped (EC2 instance store/Memcached) - AnswerEphemeral Data Store
Measure of how fast we can read and write to a device (i.e. fast sports car) - AnswerIOPS
Measure of how much data can be moved at a time (i.e. Dump truck). - AnswerThroughput
What does the Consistency Model ACID stand for? - Answer- Atomic, Consistent,
Isolated, Durable
What does the Consistency Model BASE stand for? - Answer- Basically available,
soft state, eventually consistent
Once you initiate a Glacier Vault lock, you have ____ hrs to _________ the vault
lock or ______ the lock. - Answer- 24, complete, abort
What are some use cases for Instance Stores? - Answer- caches, buffers, work
areas
Why might you use an instance store volume over an EBS volume? - AnswerInstance store may provide better performance because it is directly attached vs
EBS volume access resides over the network.
Each subsequent EBS Snapshot is ____________. Meaning it only records the
changes you've made since the previous snapshot which saves storage space. -
Answer- incremental.
An EFS can be mounted from on-premise ONLY if using ________ __________. -
Answer- Direct Connect
What is the alternative to using a direct connect to mount on premise to EFS? -
Answer- EFS File Sync Agent
What are the 4 types of Storage Gateway and describe each? - Answer- File
Gateway - store objects in S3 via NFS/SMB
Volume Gateway Stored Mode - Async replication to S3
Volume Gateway Cached mode - Primary data stored in S3, frequently accessed
data cached on-prem
Tape Gateway - use with existing backup software
A secure, fully managed file collaboration service that can integrate with AD for SSO.
It contains web, mobile, and native clients and is HIPAA, PCI, DSS, and ISO
compliant. - Answer- Amazon WorkDocs
Read Replicas support ___________ synchronization, which means data may be
lagging behind slightly on some of your read nodes. - Answer- Asynchronous
Multi-AZ supports __________ synchronization, which means data will be up-to-date
with your master node. - Answer- Synchronous
True/False: In the catastrophic event of a region failure, you can promote a Read
Replica to a standalone DB and then enable Multi-AZ from there. - Answer- True
DynamoDB feature which allows you to maintain ACID compliance to make
coordinate all-or-nothing changes to multiple items both within and across tables. -
Answer- DynamoDB Transactions
(DynamoDB) When you want a fast query of attributes outside the primary key
(without having to do table scan), what index type would you use? - Answer- GSI
(Global Secondary Index)
(DynamoDB) When you already know the partition key and want to quickly query on
some other attribute, what index type would you use? - Answer- LSI (Local
Secondary Index)
Name features of Global Secondary Indexes (GSI's) - Answer- -Created any time
-Different partition key
-Different sort key
-Only request attributes projected in index
Name features of Local Secondary Indexes (LSI's) - Answer- -Must be created with
table
-Same partition key
-Different sort key
-Can request attributes not projected in index (auto-fetch)
Refers to stores which allow queries of raw data without pre-processing. This
lessens the time from data collection to data value and helps identify correlations
between disparate data sets. - Answer- Data Lake
Fully managed graph database which supports open graph API's for both Gremlin
and SPARQL. - Answer- Neptune
Which data store would you use if you wanted ultimate control over your DB and
your preferred DB is not supported by RDS? - Answer- EC2
Which data store would you use if you wanted a traditional relational database for
OLTP, one in which data is well-formed and structured as well as ACID compliant. -
Answer- RDS
Which data store would you use if your data is comprised of name/value pairs or is
unpredictable and you desire in-memory performance with data persistence as well
as dynamic scaling? - Answer- DynamoDB
What data store would you use if you have massive amounts of data which are
primarily centered around OLAP workloads? - Answer- Redshift
What data store would you use if your relationships between your data objects is a
major portion of your data's value? - Answer- Neptune
What data store would you use if you require fast temporary stores for data which
may be highly volatile? - Answer- Elasticache
Name same features of Memcached - Answer- -Simplicity
-Object caching
-Scale out as demand changes (horizontal scaling)
-Run multiple CPU cores and threads
Name some features of Redis - Answer- -Advanced data types (lists, hashes, sets)
-HIPAA Compliance
-Clustering
-HA
True/False: You must initialize the storage blocks on volumes that were restored
from SNAPSHOTS before you can access the block. - Answer- True
True/False: You must initialize the storage blocks on newly created EBS volumes. -
Answer- False (newly created EBS volumes receive their max performance upon
creation)
For EBS volumes, you are charged for ____________ storage. For EBS snapshots,
you are charged only for ___________ storage. - Answer- Provisioned, consumed
Because of the way that EC2 virtualizes disks, the ____ write operation to any
location on an instance store volume performs more _______ than subsequent
writes. - Answer- first, slowly
True/False: Snowball might not be the ideal solution if your data can be transferred
over the internet in less than one week. - Answer- True
SaaS model in which the storage of tenant data is fully isolated from any other tenant
data. - Answer- Silo Model. Continues............. [Show Less]