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AWS SAA Actual Test | 150 Questions & 100% Correct Verified Answers
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AWS SAA Actual Test | 150 Questions & 100% Correct Verified Answers
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AWS SAA Actual Test | 150 Questions & 100%Correct Verified Answers
ELB and Autoscaling: who does what? - ✔✔ELB routes traffic across AZs and scaling groups;
auto scaling group optimizes the qty and size of instances in the group
ELB Health Checks - ✔✔InService or OutOfService. No kill, just routing
ELB listeners - ✔✔each listener is a simple monitor process used as a signal to ELB
ELB Rules - ✔✔if: listener signal; then: routing behavior
ELB target groups - ✔✔logical grouping of traffic destinations
EMR - ✔✔Amazon Elastic MapReduce (EMR) is an Amazon Web Services (AWS) tool for big
data processing and analysis. Amazon EMR offers the expandable low-configuration service as
an easier alternative to running in-house cluster computing
fault tolerant vs high availability - ✔✔no interruption vs minimal interruption
free S3 - ✔✔transfer In to S3 and trasfer out to services in same region
High-cardinality - ✔✔refers to columns with values that are very uncommon or unique. High-
cardinality column values are typically identification numbers, email addresses, or user names.
makes DB query plans more simple and queries faster
IAM - ✔✔Identity Access Management
, IAM Database Authentication - ✔✔don't need to use a password when you connect to a
MySQL or Postgres DB instance. Instead, you use an authentication token via IAM
IAM MFA - ✔✔activated on a per user basis, BY user (not admin). Admin can make MFA a
condition in IAM policies
IAM Policies - ✔✔Policies define the object permissions for subjects (IAM Identities) that
have the policies applied. Permissons defined in policies, policies 'attached' to identities (users,
groups, or roles)
IAM Policy Syntax 'PEAR' - ✔✔Principle Effect Action Resource, e.g. Bob is allowed to upload
to S3::...
KMS vs CloudHSM - ✔✔KSM = cloud managed multi-tenant symmetric encrypt; CloudHSM =
customer managed single tenant asymmetric or symmetric encrypt
Lambda print - ✔✔AWS CloudWatch logs
Max subnets per VPC - ✔✔200
Memcached vs Redis - ✔✔memcached is a true volitile cache, Redis is too, but is also a data
structure store
Multi AZ RDS vs Read Replicas - ✔✔Multi AZ = synchronous Read AND Write for standby.
Read Replicas = asynchronous Read only for performance
NACLs vs Security Groups - ✔✔NACLs are stateless access controls for VPC subnets including
both allow and deny rules. Security Groups apply allow traffic rules to instances or groups of
instances (device access control). Defaults: NACL = allow all, Sec Group = deny all
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