Practice Free C1000-172 Exam Online Questions
Question #41
What is the first customer-u address assuming a VPC subnet has the CIDR range 10.10.10.0/24?
- A . 10.10.10.0
- B . 10.10.10.4
- C . 10.10.10.24
- D . 10.10.10.1
Correct Answer: A
Question #42
Which encryption option allows clients to have control over the keys used to encrypt their block storage volumes, file shares, and custom images?
- A . Provider-managed encryption
- B . Client-managed encryption
- C . IBM-managed encryption
- D . Custom encryption
Correct Answer: B
B
Explanation:
Client-managed encryption allows clients to have full control over the encryption keys used to protect their block storage volumes, file shares, and custom images on IBM Cloud. This option ensures that only the client has access to the keys and, therefore, to the data.
Benefits of Client-Managed Encryption: Clients retain control over key management, including generation, rotation, and deletion, ensuring compliance with security policies and regulatory requirements.
Comparison with Other Options:
A (Provider-managed encryption): Managed by IBM, not by the client.
C (IBM-managed encryption): Similar to provider-managed, where IBM controls the keys.
D (Custom encryption): Not a specific term used in IBM Cloud documentation for this feature.
Reference: IBM Cloud Data Encryption Documentation IBM Cloud Architect Exam Study Guide
B
Explanation:
Client-managed encryption allows clients to have full control over the encryption keys used to protect their block storage volumes, file shares, and custom images on IBM Cloud. This option ensures that only the client has access to the keys and, therefore, to the data.
Benefits of Client-Managed Encryption: Clients retain control over key management, including generation, rotation, and deletion, ensuring compliance with security policies and regulatory requirements.
Comparison with Other Options:
A (Provider-managed encryption): Managed by IBM, not by the client.
C (IBM-managed encryption): Similar to provider-managed, where IBM controls the keys.
D (Custom encryption): Not a specific term used in IBM Cloud documentation for this feature.
Reference: IBM Cloud Data Encryption Documentation IBM Cloud Architect Exam Study Guide
Question #43
What describes an IBM Cloud VPN for virtual private cloud (VPC) service security feature?
- A . Passive Peer Detection
- B . RSA key exchange
- C . Perfect Forward Secrecy (PFS)
- D . Post-shared key
Correct Answer: C
C
Explanation:
A security feature of IBM Cloud VPN for virtual private cloud (VPC) service is Perfect Forward Secrecy (PFS).
Perfect Forward Secrecy (PFS): PFS ensures that the compromise of one session key does not compromise the confidentiality of past sessions. It provides additional security for encrypted communications by generating unique keys for each session, making it a critical feature for VPN services.
IBM Cloud VPN for VPC: This service utilizes PFS to secure communication between the cloud environment and external networks, ensuring high levels of data protection and encryption.
Reference from IBM Cloud Professional Architect Materials:
The IBM documentation on IBM Cloud VPN describes PFS as a fundamental security feature for protecting data transmitted over the network.
Other options are incorrect:
C
Explanation:
A security feature of IBM Cloud VPN for virtual private cloud (VPC) service is Perfect Forward Secrecy (PFS).
Perfect Forward Secrecy (PFS): PFS ensures that the compromise of one session key does not compromise the confidentiality of past sessions. It provides additional security for encrypted communications by generating unique keys for each session, making it a critical feature for VPN services.
IBM Cloud VPN for VPC: This service utilizes PFS to secure communication between the cloud environment and external networks, ensuring high levels of data protection and encryption.
Reference from IBM Cloud Professional Architect Materials:
The IBM documentation on IBM Cloud VPN describes PFS as a fundamental security feature for protecting data transmitted over the network.
Other options are incorrect:
Question #44
Which IBM Cloud security feature scans images stored in IBM Cloud Container Registry?
- A . Threat Advisor
- B . Trusted Advisor
- C . Security Scanner
- D . Vulnerability Advisor
Correct Answer: D
Question #45
What describes an IBM Cloud Virtual Private Endpoint?
- A . A connection point from Classic infrastructure to custom-built microservices
- B . A connection point from a VPC to other IBM Cloud services
- C . A connection point from a VPC to an on-premises network
- D . A connection point from Classic infrastructure to an on-premises network
Correct Answer: B
B
Explanation:
An IBM Cloud Virtual Private Endpoint (VPE) provides a connection point from a Virtual Private Cloud (VPC) to other IBM Cloud services. This allows secure, private communication between resources within a VPC and IBM Cloud services without traversing the public internet, enhancing security and performance.
What is a Virtual Private Endpoint? VPE is a mechanism that enables private connections from a VPC to supported IBM Cloud services such as databases, object storage, and others. It eliminates the need for public IP addresses and reduces the exposure to potential attacks over the public internet.
Why This Option Describes VPE: It clearly explains that VPE is for connecting VPC resources to other IBM Cloud services, fitting the purpose of secure, internal cloud communication.
Comparison with Other Options:
A (Classic to microservices), C (VPC to on-premises), D (Classic to on-premises): None accurately describe the function of a Virtual Private Endpoint in IBM Cloud.
Reference:
IBM Cloud VPC Virtual Private Endpoints Documentation
IBM Cloud Networking Services
IBM Cloud Architect Exam Study Guide
B
Explanation:
An IBM Cloud Virtual Private Endpoint (VPE) provides a connection point from a Virtual Private Cloud (VPC) to other IBM Cloud services. This allows secure, private communication between resources within a VPC and IBM Cloud services without traversing the public internet, enhancing security and performance.
What is a Virtual Private Endpoint? VPE is a mechanism that enables private connections from a VPC to supported IBM Cloud services such as databases, object storage, and others. It eliminates the need for public IP addresses and reduces the exposure to potential attacks over the public internet.
Why This Option Describes VPE: It clearly explains that VPE is for connecting VPC resources to other IBM Cloud services, fitting the purpose of secure, internal cloud communication.
Comparison with Other Options:
A (Classic to microservices), C (VPC to on-premises), D (Classic to on-premises): None accurately describe the function of a Virtual Private Endpoint in IBM Cloud.
Reference:
IBM Cloud VPC Virtual Private Endpoints Documentation
IBM Cloud Networking Services
IBM Cloud Architect Exam Study Guide
Question #46
A client created their infrastructure using IBM Cloud Schematics and wants to horizontally scale their resources.
How can this be achieved?
- A . Add necessary resources using CLI
- B . Add necessary resources using IBM Cloud Schematics
- C . Destroy necessary resources using IBM Cloud Console
- D . Destroy all resources and recreate them
Correct Answer: B
B
Explanation:
IBM Cloud Schematics is an Infrastructure as Code (IaC) tool that uses Terraform to create, update, and manage cloud resources. To horizontally scale resources using IBM Cloud Schematics, a user should add the necessary resources (such as additional virtual machines or instances) by updating the Terraform configuration files and applying those changes through Schematics.
How Scaling is Achieved with IBM Cloud Schematics: Users can modify their existing infrastructure definition to add new resources or adjust their configurations. These modifications can be made in the Terraform files that are managed by Schematics. After the modifications, users apply the updated configuration to scale resources horizontally (e.g., adding more instances to a resource pool).
Why IBM Cloud Schematics is the Correct Choice: Schematics manages infrastructure as code, which is a more reliable, repeatable, and controlled way to manage changes and scale resources compared to manual methods such as CLI.
Comparison with Other Options:
A (Add using CLI): Possible but not as efficient or manageable as using Schematics.
C (Destroy resources using Console): Irrelevant to scaling.
D (Destroy all and recreate): Not a practical or recommended approach for scaling.
Reference:
IBM Cloud Schematics Documentation
IBM Cloud Architect Exam Study Guide
B
Explanation:
IBM Cloud Schematics is an Infrastructure as Code (IaC) tool that uses Terraform to create, update, and manage cloud resources. To horizontally scale resources using IBM Cloud Schematics, a user should add the necessary resources (such as additional virtual machines or instances) by updating the Terraform configuration files and applying those changes through Schematics.
How Scaling is Achieved with IBM Cloud Schematics: Users can modify their existing infrastructure definition to add new resources or adjust their configurations. These modifications can be made in the Terraform files that are managed by Schematics. After the modifications, users apply the updated configuration to scale resources horizontally (e.g., adding more instances to a resource pool).
Why IBM Cloud Schematics is the Correct Choice: Schematics manages infrastructure as code, which is a more reliable, repeatable, and controlled way to manage changes and scale resources compared to manual methods such as CLI.
Comparison with Other Options:
A (Add using CLI): Possible but not as efficient or manageable as using Schematics.
C (Destroy resources using Console): Irrelevant to scaling.
D (Destroy all and recreate): Not a practical or recommended approach for scaling.
Reference:
IBM Cloud Schematics Documentation
IBM Cloud Architect Exam Study Guide
Question #47
Which statement best describes an IBM Cloud multizone region (MZR)?
- A . A region that offers increased security compared to single zone regions
- B . A region where a failure in one zone affects all other zones
- C . A region with multiple geographical locations
- D . A region that consists of at least three or more separate and interconnected zones
Correct Answer: D
D
Explanation:
An IBM Cloud multizone region (MZR) is designed to enhance the availability, reliability, and resilience of cloud services. It consists of three or more separate, geographically dispersed zones within a single region, which are interconnected through high-speed and low-latency networks.
Multiple Zones for High Availability: In a multizone region, each zone represents a separate data center or availability zone with its own independent power, cooling, and networking. The multiple zones are interconnected, allowing for failover capabilities. If one zone experiences a failure, services can continue to operate in another zone within the same MZR, minimizing downtime and ensuring business continuity.
Resilience and Disaster Recovery: MZRs are specifically designed to offer a higher level of fault tolerance compared to single-zone regions. They provide geographic redundancy within the same region, meaning that workloads can be replicated across different zones, thereby protecting against zone-level failures.
Interconnected Yet Independent: While the zones within an MZR are interconnected for data replication and low-latency communication, they are also physically and logically separated to prevent a single point of failure from affecting multiple zones.
Comparison with Other Options:
Option A is partially correct but does not fully describe an MZR.
Option B is incorrect because a failure in one zone does not affect all other zones.
Option C is incorrect as it does not specify that an MZR consists of multiple zones within the same geographical region.
Reference: IBM Cloud Multizone Regions (MZR) Overview
IBM Cloud Architect Exam Study Guide
IBM Cloud Global Data Center Locations
D
Explanation:
An IBM Cloud multizone region (MZR) is designed to enhance the availability, reliability, and resilience of cloud services. It consists of three or more separate, geographically dispersed zones within a single region, which are interconnected through high-speed and low-latency networks.
Multiple Zones for High Availability: In a multizone region, each zone represents a separate data center or availability zone with its own independent power, cooling, and networking. The multiple zones are interconnected, allowing for failover capabilities. If one zone experiences a failure, services can continue to operate in another zone within the same MZR, minimizing downtime and ensuring business continuity.
Resilience and Disaster Recovery: MZRs are specifically designed to offer a higher level of fault tolerance compared to single-zone regions. They provide geographic redundancy within the same region, meaning that workloads can be replicated across different zones, thereby protecting against zone-level failures.
Interconnected Yet Independent: While the zones within an MZR are interconnected for data replication and low-latency communication, they are also physically and logically separated to prevent a single point of failure from affecting multiple zones.
Comparison with Other Options:
Option A is partially correct but does not fully describe an MZR.
Option B is incorrect because a failure in one zone does not affect all other zones.
Option C is incorrect as it does not specify that an MZR consists of multiple zones within the same geographical region.
Reference: IBM Cloud Multizone Regions (MZR) Overview
IBM Cloud Architect Exam Study Guide
IBM Cloud Global Data Center Locations
Question #48
Vulnerability Advisor is pre-integrated into several toolchain templates.
What does the Vulnerability Advisor do?
- A . Continuously monitors and analyzes network communications
- B . Scans source code for potential threats and vulnerabilities
- C . Tests databases for SQL injection vulnerabilities
- D . Scans container images for potential security issues
Correct Answer: A
Question #49
Which IBM Cloud database service supports both relational and non-relational data querying?
- A . Databases for Redis
- B . Databases for Db2
- C . Databases for PostgreSQL
- D . Databases for etcd
Correct Answer: B
B
Explanation:
Databases for Db2 is an IBM Cloud database service that supports both relational and non-relational data querying.
IBM Cloud Databases for Db2: Db2 on IBM Cloud is a managed database service that supports both relational and non-relational models. It provides JSON and SQL querying capabilities, allowing users to store and retrieve data in a flexible manner. This makes it capable of handling structured, semi-structured, and unstructured data, thus supporting both relational and non-relational data formats.
Support for Multiple Data Types: Db2’s multi-model database capabilities enable the execution of SQL queries on relational data and the storage/retrieval of JSON documents, effectively allowing it to function in both relational and non-relational scenarios.
Reference from IBM Cloud Professional Architect Materials:
According to IBM’s documentation on IBM Cloud Databases for Db2, it supports a broad range of workloads and use cases, including transactional (relational) and operational (non-relational) workloads, making it suitable for both SQL and NoSQL data models.
The other options are incorrect because:
B
Explanation:
Databases for Db2 is an IBM Cloud database service that supports both relational and non-relational data querying.
IBM Cloud Databases for Db2: Db2 on IBM Cloud is a managed database service that supports both relational and non-relational models. It provides JSON and SQL querying capabilities, allowing users to store and retrieve data in a flexible manner. This makes it capable of handling structured, semi-structured, and unstructured data, thus supporting both relational and non-relational data formats.
Support for Multiple Data Types: Db2’s multi-model database capabilities enable the execution of SQL queries on relational data and the storage/retrieval of JSON documents, effectively allowing it to function in both relational and non-relational scenarios.
Reference from IBM Cloud Professional Architect Materials:
According to IBM’s documentation on IBM Cloud Databases for Db2, it supports a broad range of workloads and use cases, including transactional (relational) and operational (non-relational) workloads, making it suitable for both SQL and NoSQL data models.
The other options are incorrect because: