# 10 A quick guide to become Oracle Cloud Infrastructure Architect Associate

Awadhesh Pratap Dwivedi — Wed, 31 Mar 2021 05:40:54 +0000

I have recently cleared Oracle Cloud Infrastructure Architect Associate (1Z0-1072-20) exam. Just wanted to share my experience. Here are step by step guide that I followed to clear this exam

Oracle Cloud Infrastructure Certifications

1. Go through the complete course given on page ( Oracle Cloud Infrastructure Architect Associate ) –

Oracle Cloud Infrastructure Architect Associate by Rohit Rahi

2. Do some hands as suggested by Rohit Rahi (focused on Oracle Cloud Infrastructure Architect Associate )

3. Take practice exam from Udemy ( Oracle Cloud Infrastructure Architect Associate ) –

Practice Test for Oracle Cloud Infrastructure Architect Associate on Udemy

4. Do the practice test available in the first link and score more than 80%

You are ready for the exam Oracle and become Oracle Cloud Infrastructure Architect Associate. Good luck!

Here are some notes, I took during my preparation for Oracle Cloud Infrastructure Architect Associate

A DATA disk group is for storage of oracle database data files
RECO disk group is primarily used for storing the FAST RECOVERY AREA (FRA ) where oracle database can create and manage various file
related to backup and recovery (RMAN backup, Archive redo log)
A bucket can be associated with Single compartment
2-node RAC DB systems – Enterprise Edition – Extreme Performance
Bare metal DB systems allow scale without downtime
DRG used for ipsec VPN, Fast connect & remote peering
FastConnect used for both private and public peering. Private peering usages DRG
DenseIO shapes Designed for large databases, big data workloads, and applications that require high-performance local storage
You can scale up/down your Autonomous Database to scale both in terms of compute (CPU) and storage only
RAID 1: An exact copy (or mirror) of a set of data on two or more disks
RAID 10: Stripes data across multiple mirrored pairs
RAID 6: Block-level striping with two parity blocks distributed across all member disks
bronze policy includes monthly incremental backups, e silver policy includes weekly incremental backups, gold policy includes daily incremental backups
Overwrite destination object used for any copy operation, default no etag limit, override destination
2-Node VM DB system and Exadata DB system support Real Application Cluster (RAC)
BM (Dense IO) provide NVMe drivers and BM standard provide block storage only
instances to meet compliance and regulatory requirements for isolation that prevent you from using shared infrastructure – Dedicated VM hosts
In Virtual machine DB systems, you can scale up the storage as needed at any time
tpurgent:high priority time critical, tp: For typical transaction processing, high: For high priority reporting and batch operations, medium: For typical reporting and batch operations
low: For low priority reporting and batch operations
Autonomous Databases have the Dedicated and Shared Exadata infrastructure options
Automatic backups are scheduled daily
provide IAM a name that unique accross all user in tenancy
CUSTOM RESOLVER- let instances resolve the hostnames of hosts in your on-premises network connected to your VCN by IPSec VPN
Oracle recomend to configure instance to use OCI NTP service used to set date and time of your Compute and Database instances from within (VCN)
Oracle recommends configuring both tunnels to use BGP dynamic routing.
The allowable VCN size range is /16 to /30
Dynamic Routing Gateway ( IPSec VPN & Fast Connect Private peering)
Configure two or more CPE(Customer Premises Equipmenent) to leaverage IPSec Tunnel
Dedicated Exadata Infrastructure offer Multitenant DB Arch, allow over-subscription of CPU
NFS export options are a set of parameters within the export that specify the level of
access granted to NFS clients when they connect to a mount target
Load balancer,File storage and database supporrted by OCI CLI whereas block volumes are not
Compute Images and block volume backup are regional resources. Compartment is not a regional resource
DWROLE is a predefined database role to connect ADW database
Default security List and Default Route table components cannot be deleted in OCI
Customer provided encryption key always stored in OCI Vault service
OCI OKE Replica Set -maintains stable set of replica pod running at any given time
By default, object versioning is disabled on a bucket. And when you enable its NOT enabled at namespace level.
Oracle Data Guard implementation: Both database should be in same compartment. The DB systems must be the same shape type.
the database versions and editions must be identical.
If your primary and standby databases are in different regions, then you must peer the virtual cloud networks.
Primary is 1-Node RAC and secondary can be 1-Node or 2-Node
You can move object storage bucket, Block volumes and file storage mount target between the compartment
File systems use Oracle-managed key by default
Higher Performance elastic performance option is recommended for workloads with the highest I/O requirements, requiring the best possible performance, such as large databases
You can only create a clone for a volume within the same region, availability domain and tenant.
You can create a clone for a volume between compartments as long as you have the required access permissions for the operation.

Awadhesh Pratap Dwivedi

Awadhesh Pratap Dwivedi is an IT industry leader with over 13+ years of experience. He is excellent at providing an easy solution to complex business problems with his tremendous problem-solving skills. Currently, he is working with Oracle as a Principal Solution Engineer.