Oracle 1Z0-1072-21 Online Practice Questions and Exam Preparation

Oracle 1Z0-1072-21 Online Questions & Answers

• Question 41:

  Your application consists of three Oracle Cloud Infrastructure compute instances running behind a public load balancer. You have configured the load balancer to perform health checks on these instances, but one of the three instances fails to pass the configured health check. Which of the following action will the load balancer perform?

  A. Stop sending traffic to the instance that failed health check
  B. Terminate the instance that failed health check
  C. Stop the instances that failed health check
  D. Remove the instance that failed the health check from the backend set
  A. Stop sending traffic to the instance that failed health check

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  health check A test to confirm the availability of backend servers. A health check can be a request or a connection attempt. Based on a time interval you specify, the load balancer applies the health check policy to continuously monitor

  backend servers. If a server fails the health check, the load balancer takes the server temporarily out of rotation. If the server subsequently passes the health check, the load balancer returns it to the rotation.

  You configure your health check policy when you create a backend set. You can configure TCP-level or HTTP-level health checks for your backend servers.

  -

  TCP-level health checks attempt to make a TCP connection with the backend servers and validate the response based on the connection status.

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  HTTP-level health checks send requests to the backend servers at a specific URI and validate the response based on the status code or entity data (body) returned. The service provides application-specific health check capabilities to help you increase availability and reduce your application maintenance window.

• Question 42:

  You are a network architect of an application running on Oracle Cloud Infrastructure (OCI). Your security team has informed you about a security patch that needs to be applied immediately to one of the backend web servers. What should you do to ensure that the OCI load balancer does not forward traffic to this backend server during maintenance?

  A. Drain all existing connections to this backend server and mark the backend web server offline
  B. Create another OCI load balancer for the backend web servers, which are active and handling traffic
  C. Edit the security list associated with the subnet to avoid traffic connectivity to this backend serve
  D. Stop the load balancer for maintenance and restart the load balancer after the maintenance is finished
  A. Drain all existing connections to this backend server and mark the backend web server offline

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  A load balancer improves resource utilization, facilitates scaling, and helps ensure high availability. You can configure multiple load balancing policies and application-specific health checks to ensure that the load balancer directs traffic only to healthy instances. The load balancer can reduce your maintenance window by draining traffic from an unhealthy application server before you remove it from service for maintenance. The Load Balancing service considers a server marked drain available for existing persisted sessions. New requests that are not part of an existing persisted session are not sent to that server. Edit Drain State: Opens a dialog box in which you can change the drain state. If you set the server's drain status to true, the load balancer stops forwarding new TCP connections and new non-sticky HTTP requests to this backend server. This setting allows an administrator to take the server out of rotation for maintenance purposes.

  e. Edit Offline State: Opens a dialog box in which you can change the offline status.

  If you set the server's offline status to true, the load balance forwards no ingress traffic to this backend server.

• Question 43:

  Which three are default Virtual Cloud Network (VCN) components? (Choose three.)

  A. Security List
  B. Dynamic Routing Gateway
  C. DHCP options
  D. Internet Gateway
  E. Route Table
  A. Security List
  C. DHCP options
  E. Route Table

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  References:

  (1)

  => Populated by Default

  (0)

  => Not Populated by Default

  Resources

  ==========

  Subnets (0)

  Route Tables (1)

  Internet Gateways (0)

  Dynamic Routing Gateways (0)

  Network Security Groups (0)

  Security Lists (1)

  DHCP Options (1)

  Local Peering Gateways (0)

  NAT Gateways (0)

  Service Gateways (0)

• Question 44:

  You have a working application in the US East region. The app is a 3-tier app with a database backend

  - you take regular backups of the database into OCI Object Storage in the US East region. For Business continuity; you are leveraging OCI Object Storage cross-region copy feature to copy database backups to the US West region.

  Which of the following three steps do you need to execute to meet your requirement?

  A. Write an IAM policy and authorize the Object Storage service to manage objects on your behalf
  B. Specify an existing destination bucket
  C. Specify the bucket visibility for both the source and destination buckets
  D. Provide a destination object name
  E. Provide an option to choose bulk copying of objects
  F. Choose an overwrite rule
  A. Write an IAM policy and authorize the Object Storage service to manage objects on your behalf
  B. Specify an existing destination bucket
  F. Choose an overwrite rule

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  You can copy objects to other buckets in the same region and to buckets in other regions. You must have the required access to both the source and destination buckets when performing an object copy. You must also have permissions to

  manage objects in the source and destination buckets.

  Because Object Storage is a regional service, you must authorize the Object Storage service for each region carrying out copy operations on your behalf. For example, you might authorize the Object Storage service in region US East

  (Ashburn) to manage objects on your behalf. Once you authorize the Object Storage service, you can copy an object stored in a US East (Ashburn) bucket to a bucket in another region.

  You can use overwrite rules to control the copying of objects based on their entity tag (ETag) values. Specify an existing target bucket for the copy request. The copy operation does not automatically create buckets.

• Question 45:

  Which statement is true regarding Autonomous Transaction Processing (ATP)?

  A. A database name cannot be used concurrently for both an Autonomous Data Warehouse (ADW) and an ATP database
  B. After terminating a database, the database name is available for immediate reuse
  C. A maximum of 8 cores can be enabled for an ATP database
  D. A maximum of 2 TB of storage can be enabled for an ATP database
  A. A database name cannot be used concurrently for both an Autonomous Data Warehouse (ADW) and an ATP database

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  The database name must be unique among all Autonomous Data Warehouses and Autonomous Databases in your tenancy in the same region.

  

  Terminating an Autonomous Transaction Processing database permanently deletes the instance and removes all automatic backups. You cannot recover a terminated database. the maximum number of CPUs and maximum storage capacity that can be provisioned in Oracle Autonomous Database In the current release up to 128 CPUs and 128TB can be provisioned from the cloud console. Customers requiring more resources need to call their Oracle account team

• Question 46:

  You have an Oracle Cloud Infrastructure (OCI) load balancer distributing traffic via an evenly- weighted round robin policy to your back-end web servers. You notice that one of your web servers is receiving more traffic than other web servers. How can you resolve this to make sure traffic is evenly distributed across all back-end webservers?

  A. Disable cookie-based session persistence on your backend set.
  B. Change kee
  C. Disable SSL configuration associated with your backend set.
  D. Create separate listeners for each backend web server.
  D. Create separate listeners for each backend web server.

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  Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Balance/Concepts/balanceoverview.htm

• Question 47:

  Why are two subnets required to create a public load balancer when additional subnets are often used for back-end servers? (Choose two.)

  A. Routing is simpler when the load balancer is not in the same subnet as the back-end server.
  B. Performance is higher when more subnets are used.
  C. Additional subnets for back-end servers allow for separate route tables for these servers.
  D. Additional subnets for back-end servers allow for separate security lists for these servers.
  B. Performance is higher when more subnets are used.
  D. Additional subnets for back-end servers allow for separate security lists for these servers.

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  References:

  http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/ocis/load-balancer/load- balancer.html

• Question 48:

  What is true about data guard set up with fast-start failover (FSFO) in Oracle Cloud Infrastructure (OCI)?

  A. The best practice for high availability and durability is to run the primary, standby, and observer in separate availability domains (ADs).
  B. When you configure data guard using OCI console, the default mode is set to maxprotection.
  C. You cannot create the standby DB system in a different AD from the primary DB system.
  D. You cannot use database command line interface (CLI) to set up data guard with FSFO.
  A. The best practice for high availability and durability is to run the primary, standby, and observer in separate availability domains (ADs).

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  References: The best practice for high availability and durability is to run the primary, standby, and observer in separate availability domains. The observer determines whether or not to failover to a specific target standby database https://docs.cloud.oracle.com/enus/iaas/Content/Database/Tasks/usingDG.htm#ConfiguringObserverOptional

• Question 49:

  You have a shared file system between two web servers using File Storage Service (FSS) and you were tasked to create a backup plan for this environment to protect the data placed into the shared file system. What is the recommended approach to create this backup using FSS features?

  A. Implement a backup policy to execute a snapshot of the shared volume.
  B. Implement a backup policy to copy data from the shared volume to object storage.
  C. Compress the data that is in the shared volume and copy it into a different folder on the boot volume disk.
  D. Use the rsync tool to send data from the shared volume to a boot volume disk.
  E. Use the rsync tool to send data from the shared volume to a block volume.
  A. Implement a backup policy to execute a snapshot of the shared volume.

• Question 50:

  You have provisioned an Autonomous Data Warehouse (ADW) database with 16 enabled OCPUs and need to configure the consumer group for your application. Which two are true when deciding the number of sessions for each application? (Choose two.)

  A. The MEDIUM and LOW consumer group can run up to 16 concurrent SQL statements if HIGH consumer group has 0 SQL statements
  B. The HIGH consumer group can run up to 16 concurrent SQL statements as long as MEDIUM and LOW consumer groups have 0 SQL statements
  C. The MEDIUM consumer group can run 20 concurrent SQL statements when HIGH consumer group has 0 SQL statements
  D. The HIGH consumer group can run up to 16 concurrent SQL statements in addition to 32 concurrent SQL statements in MEDIUM and LOW consumer group each
  E. The HIGH consumer group can run 3 concurrent SQL statements when MEDIUM consumer group has 0 SQL statements
  C. The MEDIUM consumer group can run 20 concurrent SQL statements when HIGH consumer group has 0 SQL statements
  E. The HIGH consumer group can run 3 concurrent SQL statements when MEDIUM consumer group has 0 SQL statements

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  References:

  https://docs.oracle.com/en/cloud/paas/autonomous-data-warehouse-cloud/user/connect- predefined.html#GUID-9747539B-FD46-44F1-8FF8-F5AC650F15BE