Question-40:You are employed as a Chief Solution Architect at QuickTechie Inc., and one of the setups that you are responsible for managing is Virtual Machine-based apps. Your business uses an enterprise application that is hosted on Google Compute Engine and has requirements for both high availability and high performance. The programme has been set up to run in active-passive mode on two different instances located in two different zones within the same geographic area. The data are written to a disc that is persisted by the programme. In the event that just one zone is affected by the outage, that data need to be made instantly accessible to the other instance that resides in the other zone. You want to have the best possible performance while cutting down on both downtime and lost data as much as possible. What is it that you ought to do?
A. 1. Connect a persistent solid-state drive (SSD) to the first instance. 2. Take a picture of the current state every hour. 3. Recreate a persistent SSD disc in the second instance where data is coming from the snapshot that was created in the event that a zone fails to become available.
B. 1. Start by creating a bucket in the cloud storage. 2. Use gcs-fuse to attach the bucket to the first instance of the container. 3. Mount the Cloud Storage bucket on the second instance using gcs-fuse in the event that there is an issue with the first zone.
C. 1. Attach a regional SSD persistent disk to the first instance. 2. In case of a zone outage, force-attach the disk to the other instance.
D. 1. Connect a local SSD to the disc that is the initial instance. 2. Carry out a command using rsync.
Correct Answer
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: 3 Explanation: Option-3. 1. Connect a regional solid-state drive (SSD) persistent disc to the first instance. 2. If there is a problem with the zone, you need to manually connect the disc to the other instance. The gcs-fuse protocol has a slower performance than the regional SSD PD. A storage option known as regional persistent disc allows for the simultaneous replication of data between any two zones that are located within the same area. When it comes to the implementation of HA services in Compute Engine, regional persistent discs might be a useful building piece to employ. You want to have the best possible performance while cutting down on both downtime and lost data as much as possible. In accordance with the architecture that is in place at the moment, The programme writes data to a persistent drive. A storage option known as regional persistent disc allows for the simultaneous replication of data between any two zones that are located within the same area. When it comes to the implementation of HA services in Compute Engine, regional persistent discs might be a useful building piece to employ. One of the advantages of utilising regional persistent discs is that in the event of a zonal outage, during which your virtual machine (VM) instance may become inaccessible, you will typically be able to force attach a regional persistent disc to a VM instance that is located in a secondary zone that is located within the same region. This will allow you to continue accessing your data. In order to do this action, you will need to either initiate the creation of a new virtual machine instance in the same zone as the regional persistent disc that you are forcibly attaching or keep a virtual machine instance in that zone in a state of hot standby. A virtual machine (VM) instance that is operating and is an exact copy of the one you are using is referred to as a hot standby. Both of these cases include the same information. The procedure to force-attach completes at a time that is less than one minute.