Computer Science > EXAM > OCI 2022 Exam Study Questions 222 Questions with 100% Correct Answers COMPLETE SOLUTION (All)

OCI 2022 Exam Study Questions 222 Questions with 100% Correct Answers COMPLETE SOLUTION

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What is the bronze policy for backups of block volumes? - ✔✔Monthly incremental backups run on the first of the monthy and retained for twelve months with a full backup yearly on January first What is the silver policy for backups of block volumes? - ✔✔Weekly incremental backups that run on Sunday and retained for four weeks + bronze policy What is the gold policy for backups of block volumes? - ✔✔Daily incremental backuips retained for seven days + silver policy What information is contained in an instance configuration? - ✔✔OS image, metadata, shape, vNIC's, Storage, AD, Subnet and compartment information. Similar to a launch template in AWS What do I need to create an instance pool? - ✔✔Instance Configuration What are some benefits of an instance pool? - ✔✔You can deploy uniform instances to different availability domains, attach the instance config to a load balancer to provide scalability and manage many as one including stop, start, terminate and update a large number of instance with a single instance configuration change. How can compute health, capacity and performance be monitored? - ✔✔Using metrics, alarms and notifications. How would you automatically adjust the number of compute instances in an instance pool? - ✔✔You would use an autoscaling configuration. How does an autoscaling configuration work? - ✔✔It allows you to automatically adjust the number of compute instances based on performance metrics such as cpu and memory utilization.Need to add or reset ssh keys for the opc user how would you do this? - ✔✔Need to create and use a console connection. What do console connections allow you to do? - ✔✔Add or reset opc user ssh keys, edit system configuation files, fix images that do not successfully boot, enter a non-responsive instance. What are the two types of console connections? - ✔✔Serial and VNC console connections Once connected through the serial console what's the process to get into the vm? - ✔✔Reboot the vm from the console wait for the list of available boot images to load. Type e to edit the startup and add init=/bin/bash to get a bash prompt on startup. So the changes take: /usr/sbin/load_policy -i Then mount: /bin/mount -o remount, rw / then go to the opc user ssh dir and make changes and reboot What's missing from console `$ ssh -o ProxyCommand='ssh -W %h:%p -p 443...` - ✔✔Need to specify the ssh key at the begining of both ssh commands -i // What are the required steps to get cost usage reports in your tenancy? - ✔✔In the root compartment you must define two policies. 1 - define tenancy usage-report as ocid1.tenancy.oc1..aaaaaaaaned4fpwkisbwwkr56u7gj63lf3wfyprpwknfwetvzub7fffqkggq 2 - endorse group to read objects in tenancy usage-report When creating a custom image from a running instance what is not included? - ✔✔Data from attached bloc volumes When creating a custom image from a running instance what's the maximum size for an image? - ✔✔300 GB What are the three import modes for images? - ✔✔Emulation, Para-virtualized, and Native modeOf the import modes what is Emulation mode and what are the pro's and con's? - ✔✔Fully emulated NIC, block boot, legacy bios boot. Pro's: compatibility with wide range of older/custom OS. Con's: Low Performance - 20% loess compared with Native mode Of the import modes what is Para-virtualized mode and what are the pro's and con's? - ✔✔Current OCI VM experience offering maximum performance with modern OS's. Pro's: Available for Oracle provided VM's, smaller set of modern OS's only. Con's: Incompatible with wide range of older OS Of the import modes what is Native mode and what are the pro's and con's? - ✔✔Balance between performance and compatibility. Pro's: Support a wide range of older and new OS, minimal performance gap between virtio and iSCSI. Con's: Has to work with virtIO driver Can load balances cross regions? - ✔✔No How does a virtual IP assist with HA? - ✔✔A compute instance can be assigned a secondary IP if that vm has a problem the vip can be igrated to another vm in the same subnet to achieve instance failover How do you set up IPsec VPN HA? - ✔✔DRG must have multiple VPN endpoints so that each IPSec VPN connection consists of multiple redundant IPSec tunnels that use static routes to route traffic. To ensure HA you must have two CPE's and allow the internal network to be able to use either path when needed. How do you configure FastConnect HA? - ✔✔Need to set up more than 1 virtual circuit from the CPE to the DRG How is OCI storage built for HA? - ✔✔Object storage uses checksums to verify data integrity and corrupt data is auto detected and healed from reduntant copies. List the RPO and RTO for Backup and Restore. - ✔✔24 hour RPO and 24 hour RTO List the RPO and RTO for Standby DR. - ✔✔12 RPO and 4 hour RTO

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