2021 1Z0-1072-20 Question Bank: Free PDF Download Recently Updated Questions
1Z0-1072-20 Certification Exam Dumps with 240 Practice Test Questions
Oracle 1Z0-1072-20 Exam Syllabus Topics:
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NEW QUESTION 37
You are deploying a highly available web application in Oracle Cloud Infrastructure and have decided to use a public load balancer. The back-end web servers will be distributed across all three availability domains (ADs).
How many subnets should you create to deliver a secure highly available application?
- A. four subnets in total; one subnet in each AD for the web servers and a single subnet in any one AD for the load balancer
- B. six subnets in total; two subnets in each AD; one for the load balancer and one for the web servers
- C. five subnets in total; two subnets each in the first and second AD with a single subnet in the third AD
- D. three subnets in total; one subnet in each AD
Answer: B
NEW QUESTION 38
Your company uses the Oracle Cloud Infrastructure (OCI) Object Storage service to share large data sets with its data science team. The data science team consists of 20 people who work from offices in Washington, D.C., and Tokyo. While working in these offices, employees are assigned an IP address from the public IP range 129.146.31.0/27 Which two steps should you take to ensure that the Object Storage bucket used in this scenario was only accessible from these office locations? (Choose two.)
- A. Set the bucket visibility to public and only share the URL with the data science team via email
- B. Create a Network Source named CorpNetwork with a CIDR block of 129.146.0.0/16
- C. Create a Network Source named CorpNetwork with a CIDR block of 129.146.31.0/27
- D. Write an IAM policy that includes the conditional statement where request.networkSource.name =CorpNet
- E. Write an IAM policy that includes the conditional statement where request.region =
129.146.31.0/27 - F. Create a pre-authenticated request for each data set and only share with the data science team via email
Answer: B,F
NEW QUESTION 39
You are managing a tier-1 OLTP application on an Oracle Autonomous Transaction Processing (ATP) database. Your business needs to run hourly batch processes on this ATP database that may consume more CPUs than what is available on the server.
How can you limit these batch processes to not interfere with the OLTP transactions?
- A. Configure ATP resource management rules to change CPU/IO shares for the consumer group of batch processes.
- B. Disable automated backup during the batch process operations.
- C. ATP is designed for OLTP workload only, you cannot run batch processes on ATP.
- D. Copy OLTP data into new tables in a new table space and run batch processes against these new tables.
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION 40
You are in the process of setting up a highly available student registration website on Oracle Cloud Infrastructure (OCI). You use a load balancer and a database service on OCI. You launch two compute instances each in a different subnet and add them to the back end set of a public load balancer. The load balancer is configured correctly and working. You then deploy the student registration application on these two compute instances. The application can communicate with the database service. However, when you type the URL of this student registration application in your browser, no web page appears.
What could be the cause?
- A. The Dynamic Routing Gateway is preventing the client traffic from your data center network from reaching the public IP of the load balancer.
- B. The security lists of the subnets on which the two instances are located do not have "allow" rules for port 80 and 443.
- C. The load balancer performed a health check on the application and found that compute instances were not in a healthy state and terminated the instances.
- D. The client requested https access to the application and the load balancer service does not support end-to-end SSL from the client to the listener to the back-end set.
Answer: B
NEW 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. Remove the instance that failed the health check from the backend set
- C. Terminate the instance that failed health check
- D. Stop the instances that failed health check
Answer: A
Explanation:
Explanation
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.
- 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.
NEW QUESTION 42
Which two statements are true about adding secondary VNICs to an existing compute instance? (Choose two.)
- A. The primary and secondary VNIC association must be in the same availability domain
- B. You can assign an Ephemeral Public IP to a secondary VNIC
- C. The primary and secondary VNIC association can be in different virtual cloud networks (VCNs)
- D. You can remove the primary VNIC after the secondary VNIC's attachment is complete
Answer: A,C
Explanation:
Explanation
"You can add secondary VNICs to an instance after it's launched. Each secondary VNIC can be in a subnet in the same VCN as the primary VNIC, or in a different subnet that is either in the same VCN or a different one. However, all the VNICs must be in the same availability domain as the instance."
https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Tasks/managingVNICs.htm
NEW QUESTION 43
You are managing a tier-1 OLTP application on an Autonomous Transaction Processing (ATP) database. Your business needs to run hourly batch processes on this ATP database that may consume more CPUs than what is available on the server.
How can you limit these batch processes to not interfere with the OLTP transactions?
- A. ATP is designed for OLTP workload only; you should not run batch processes on ATP
- B. Disable automated backup during the batch process operations
- C. Copy OLTP data into new tables in a new table space and run batch processes against these new tables
- D. Configure ATP resource management rules to manage runtime and IO consumption for the consumer group of batch processes
Answer: D
Explanation:
Explanation
Autonomous Transaction Processing comes with predefined CPU/IO shares assigned to different consumer groups. You can modify these predefined CPU/IO shares if your workload requires different CPU/IO resource allocations.
By default, the CPU/IO shares assigned to the consumer groups TPURGENT, TP, HIGH, MEDIUM, and LOW are 12, 8, 4, 2, and 1, respectively. The shares determine how much CPU/IO resources a consumer group can use with respect to the other consumer groups. With the default settings the consumer group TPURGENT will be able to use 12 times more CPU/IO resources compared to LOW, when needed. The consumer group TP will be able to use 4 times more CPU/IO resources compared to MEDIUM, when needed.
NEW QUESTION 44
Which statement is true about restoring a block volume from a manual or policy-based block volume backup?
- A. It can be restored as new volumes to any Availability Domain within the same region.
- B. It can be restored as new volumes to any Availability Domain across different regions.
- C. It must be restored as new volumes to the same Availability Domain on which the original block volume backup resides.
- D. It can be restored as new volumes with different sizes from the backups.
Answer: A
Explanation:
References:
NEW QUESTION 45
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. Additional subnets for back-end servers allow for separate route tables for these servers.
- C. Additional subnets for back-end servers allow for separate security lists for these servers.
- D. Performance is higher when more subnets are used.
Answer: C,D
Explanation:
Explanation
References:
http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/ocis/load-balancer/load-balancer.html
NEW QUESTION 46
What is true about data guard set up with fast-start failover (FSFO) in Oracle Cloud Infrastructure (OCI)?
- A. When you configure data guard using OCI console, the default mode is set to maxprotection.
- B. You cannot use database command line interface (CLI) to set up data guard with FSFO.
- C. You cannot create the standby DB system in a different AD from the primary DB system.
- D. The best practice for high availability and durability is to run the primary, standby, and observer in separate availability domains (ADs).
Answer: D
Explanation:
Explanation
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/en-us/iaas/Content/Database/Tasks/usingDG.htm#ConfiguringObserverOptional
NEW QUESTION 47
Which storage would you use if your big data workload requires shared access and an NFS based interface?
- A. Block Volume
- B. Storage Software Cloud Appliance
- C. Archive Storage
- D. Object Storage
- E. File Storage
Answer: E
Explanation:
Explanation
References: https://docs.cloud.oracle.com/iaas/Content/File/Concepts/filestorageoverview.htm The File Storage service is designed to meet the needs of applications and users that need an enterprise file system across a wide range of use cases, including the following:
General Purpose File Storage: Access to an unlimited pool of file systems to manage growth of structured and unstructured data.
Big Data and Analytics: Run analytic workloads and use shared file systems to store persistent data.
Lift and Shift of Enterprise Applications: Migrate existing Oracle applications that need NFS storage, such as Oracle E-Business Suite and PeopleSoft.
Databases and Transactional Applications: Run test and development workloads with Oracle, MySQL, or other databases.
Backups, Business Continuity, and Disaster Recovery: Host a secondary copy of relevant file systems from on premises to the cloud for backup and disaster recovery purposes.
MicroServices and Docker: Deliver stateful persistence for containers. Easily scale as your container-based environments grow.
NEW QUESTION 48
As a solution architect, you are showcasing the Oracle Cloud Infrastructure (OCI) Object Storage feature about Object Versioning to a customer.
Which statement is true in regards to OCI Object Storage Versioning?
- A. Objects are physically deleted from a bucket when versioning is enabled.
- B. Object versioning does not provide data protection against accidental or malicious object update, overwrite, or deletion.
- C. A bucket that is versioning-enabled can have only and always will have a latest version of the object in the bucket.
- D. By default, object versioning is disabled on a bucket.
Answer: B
Explanation:
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Object/Tasks/usingversioning.htm
NEW QUESTION 49
Which two components cannot be deleted in your Oracle Cloud Infrastructure Virtual Cloud Network? (Choose two.)
- A. Default route table
- B. Service gateway
- C. Default security list
- D. Routing gateway
- E. Default subnet
Answer: A,C
Explanation:
Reference:
https://www.oracle.com/a/ocom/docs/vcn-deployment-guide.pdf (4)
NEW QUESTION 50
Which two statements are true about an Oracle Cloud Infrastructure (OCI) virtual cloud network (VCN)?
(Choose two.)
- A. If you own a block of public IPs, you can assign it to one of your VCNs.
- B. In regions with multiple Availability Domains (AD), each AD should have their own VCN assigned to it.
- C. To delete a VCN, its subnets must contain no resources.
- D. A VCN covers a single, contiguous IPv4 CIDR block of your choice.
- E. A VCN can have multiple CIDR blocks associated with it.
Answer: C,D
Explanation:
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Tasks/managingVCNs.htm
NEW QUESTION 51
When you try to create an instance on Oracle Cloud Infrastructure (OCI), what are three valid sources to choose the image from? (Choose three.)
- A. Dedicated VM Host
- B. Partner Images
- C. Object Storage
- D. Custom Image
- E. Platform Images
- F. Bare Metal Instance
- G. Instance Pools
Answer: B,D,E
Explanation:
Explanation/Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Tasks/launchinginstance.htm
NEW QUESTION 52
An Oracle Cloud Infrastructure tenancy administrator is not able to delete a user in the tenancy.
What can cause this issue?
- A. User is member of an Identity and Access Management (IAM) group.
- B. Users can be blocked but not deleted.
- C. User needs to be deleted from federation Identity Provider (IdP) before deleting from IAM.
- D. User has multi-factor authentication (MFA) enabled.
Answer: D
NEW QUESTION 53
Which three types of credentials are used to manage Oracle Cloud Infrastructure Identity and Access Management (IAM)? (Choose three.)
- A. API Signing Key
- B. Swift Password
- C. SSH Key
- D. Console Password
- E. Windows Password
Answer: A,B,D
Explanation:
Explanation
References: https://cloud.oracle.com/iaas/whitepapers/best-practices-for-iam-on-oci.pdfYou manage the following types of credentials with Oracle Cloud Infrastructure IAM:Console password: For signing in to the Console, which is the user interface for interacting with Oracle Cloud InfrastructureAPI signing key (in PEM format): For sending API requests, which require authenticationSwift password: For using a Swift client with Recovery Manager (RMAN) to back up an Oracle Database System (DB System) database to Object Storage
NEW QUESTION 54
You have two line of business operations (LOB1, LOB2) leveraging Oracle Cloud Infrastructure. LOB1 is deployed in VCN1 in the OCI US East region, while LOB2 is deployed in VCN2 in the US West region. You need to peer VCN1 and VCN2 for disaster recovery and data backup purposes. To ensure you can utilize the OCI Virtual Cloud Network remote peering feature, which CIDR ranges should be used?
- A. VCN1 (192.168.0.0/16) and VCN2 (192.168.1.0/27)
- B. VCN1 (172.16.1.0/24) and VCN2 (172.16.1.0/27)
- C. VCN1 (10.0.0.0/16) and VCN2 (10.0.1.0/24)
- D. VCN1 (10.0.0.0/16) and VCN2 (172.16.0.0/16)
Answer: D
Explanation:
Explanation
VCN1 (10.0.0.0/16) will use the IP Range from 10.0.0.0 to 10.0.255.255 and the VNC 2 (172.16.0.0/16) will use the IP Range from 172.16.0.0 to 172.16.255.255 the will not be overlap between the 2 VCN
NEW QUESTION 55
Which two statements are true about policies?
- A. You can deny access to a group via policies.
- B. A policy is a document that specifies who can access which Oracle Cloud Infrastructure resources that your company has, and how.
- C. Users need not do anything but still have to be added to a group with appropriate policies defined.
- D. You can use read, write, manage, and inspect as verbs for defining a policy.
Answer: B,C
NEW QUESTION 56
Your company uses the Oracle Cloud Infrastructure (OCI) Object Storage service to share large data sets with its data science team. The data science team consists of 20 people who work from offices in Washington,
D.C., and Tokyo. While working in these offices, employees are assigned an IP address from the public IP range 129.146.31.0/27 Which two steps should you take to ensure that the Object Storage bucket used in this scenario was only accessible from these office locations? (Choose two.)
- A. Set the bucket visibility to public and only share the URL with the data science team via email
- B. Create a Network Source named CorpNetwork with a CIDR block of 129.146.0.0/16
- C. Create a Network Source named CorpNetwork with a CIDR block of 129.146.31.0/27
- D. Write an IAM policy that includes the conditional statement where request.networkSource.name = CorpNet
- E. Create a pre-authenticated request for each data set and only share with the data science team via email
- F. Write an IAM policy that includes the conditional statement where request.region
129.146.31.0/27
Answer: B,E
NEW QUESTION 57
Which statement is true regarding Autonomous Transaction Processing (ATP)?
- A. After terminating a database, the database name is available for immediate reuse
- B. A database name cannot be used concurrently for both an Autonomous Data Warehouse (ADW) and an ATP database
- C. A maximum of 2 TB of storage can be enabled for an ATP database
- D. A maximum of 8 cores can be enabled for an ATP database
Answer: B
Explanation:
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
NEW QUESTION 58
You have an application deployed in Oracle Cloud Infrastructure running only in the Phoenix region. You were asked to create a disaster recovery (DR) plan that will protect against the loss of critical dat a. The DR site must be at least 500 miles from your primary site and data transfer between the two sites must not traverse the public Internet.
Which is the recommended disaster recovery plan?
- A. Create a DR environment in Ashburn and provision a FastConnect virtual circuit using DRG between the regions.
- B. Create a DR environment in Ashburn. Associate a dynamic routing gateway (DRG) with the VCN in each region and configure an IPsec VPN connection between the two regions.
- C. Create a new virtual cloud network (VCN) in the Phoenix region and create a subnet in one availability domain (AD) that is not currently being used by your production systems. Establish VCN peering between the production and DR sites.
- D. Create a DR environment in Ashburn. Associate a DRG with the VCN in each region and create a remote peering connection between the two VCNs.
Answer: D
Explanation:
Remote VCN peering is the process of connecting two VCNs in different regions (but the same tenancy ). The peering allows the VCNs' resources to communicate using private IP addresses without routing the traffic over the internet or through your on-premises network. Without peering, a given VCN would need an internet gateway and public IP addresses for the instances that need to communicate with another VCN in a different region.
At a high level, the Networking service components required for a remote peering include:
- Two VCNs with non-overlapping CIDRs, in different regions that support remote peering. The VCNs must be in the same tenancy.
- A dynamic routing gateway (DRG) attached to each VCN in the peering relationship. Your VCN already has a DRG if you're using an IPSec VPN or an Oracle Cloud Infrastructure FastConnect private virtual circuit.
A remote peering connection (RPC) on each DRG in the peering relationship.
A connection between those two RPCs.
Supporting route rules to enable traffic to flow over the connection, and only to and from select subnets in the respective VCNs (if desired).
Supporting security rules to control the types of traffic allowed to and from the instances in the subnets that need to communicate with the other VCN.
NEW QUESTION 59
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