Practice Free C1000-172 Exam Online Questions
Question #21
IBM Cloud offers two content delivery networks: CDN and CIS.
Which two networks underpin these two offerings?
- A . Limelight and KeyCDN
- B . Akamai and Cloudflare
- C . CDN 77 and CloudFront
- D . Cloudflare and Fastly
Correct Answer: B
B
Explanation:
IBM Cloud offers two content delivery networks (CDNs): CDN and Cloud Internet Services (CIS).
These two offerings are underpinned by the networks of Akamai and Cloudflare, respectively.
IBM Cloud CDN: IBM Cloud uses Akamai’s global network for its Content Delivery Network (CDN) service. Akamai is one of the largest and most trusted CDN providers globally, known for its expansive network that delivers content with low latency and high availability.
IBM Cloud Internet Services (CIS): This service is built on Cloudflare’s global network and offers a suite of services, including a CDN, DDoS protection, web application firewall (WAF), and more. Cloudflare’s network spans many data centers worldwide, optimizing traffic delivery and securing applications.
Comparison with Other Options:
Limelight and KeyCDN (A), CDN 77 and CloudFront (C), Cloudflare and Fastly (D): These are other CDN providers but do not represent the networks underpinning IBM Cloud’s CDN offerings.
Reference: IBM Cloud CDN Documentation
IBM Cloud Internet Services (CIS) Documentation
IBM Cloud Architect Exam Study Guide
B
Explanation:
IBM Cloud offers two content delivery networks (CDNs): CDN and Cloud Internet Services (CIS).
These two offerings are underpinned by the networks of Akamai and Cloudflare, respectively.
IBM Cloud CDN: IBM Cloud uses Akamai’s global network for its Content Delivery Network (CDN) service. Akamai is one of the largest and most trusted CDN providers globally, known for its expansive network that delivers content with low latency and high availability.
IBM Cloud Internet Services (CIS): This service is built on Cloudflare’s global network and offers a suite of services, including a CDN, DDoS protection, web application firewall (WAF), and more. Cloudflare’s network spans many data centers worldwide, optimizing traffic delivery and securing applications.
Comparison with Other Options:
Limelight and KeyCDN (A), CDN 77 and CloudFront (C), Cloudflare and Fastly (D): These are other CDN providers but do not represent the networks underpinning IBM Cloud’s CDN offerings.
Reference: IBM Cloud CDN Documentation
IBM Cloud Internet Services (CIS) Documentation
IBM Cloud Architect Exam Study Guide
Question #22
In order to provide a highly resilient and highly available network with ECMP and diversity connections to IBM Cloud, how many Direct Link circuits should be recommended?
- A . 6
- B . 2
- C . 3
- D . 4
Correct Answer: D
Question #23
It is imperative to ensure that internet-facing applications are protected from DDoS attacks, data theft, and bot attacks.
Which feature of Cloud Internet Services (CIS) is being discussed here?
- A . Security
- B . Performance
- C . Reliability
- D . Scalability
Correct Answer: A
A
Explanation:
The feature of Cloud Internet Services (CIS) being discussed is Security.
CIS Security Features: IBM Cloud Internet Services provides robust security measures to protect internet-facing applications from a variety of attacks, including Distributed Denial of Service (DDoS), data theft, and bot attacks. These services are crucial for securing applications and data in the cloud.
Protection Mechanisms: CIS integrates multiple layers of security features, such as Web Application Firewall (WAF), DDoS protection, and threat intelligence, which work together to secure applications from cyber threats.
Reference from IBM Cloud Professional Architect Materials:
The IBM Cloud Internet Services documentation highlights the focus on security to protect applications from DDoS attacks, data breaches, and other threats.
Other options are incorrect:
B. Performance relates to speed and efficiency, not protection.
C. Reliability deals with system uptime and consistency.
D. Scalability is about handling increased load, not security.
A
Explanation:
The feature of Cloud Internet Services (CIS) being discussed is Security.
CIS Security Features: IBM Cloud Internet Services provides robust security measures to protect internet-facing applications from a variety of attacks, including Distributed Denial of Service (DDoS), data theft, and bot attacks. These services are crucial for securing applications and data in the cloud.
Protection Mechanisms: CIS integrates multiple layers of security features, such as Web Application Firewall (WAF), DDoS protection, and threat intelligence, which work together to secure applications from cyber threats.
Reference from IBM Cloud Professional Architect Materials:
The IBM Cloud Internet Services documentation highlights the focus on security to protect applications from DDoS attacks, data breaches, and other threats.
Other options are incorrect:
B. Performance relates to speed and efficiency, not protection.
C. Reliability deals with system uptime and consistency.
D. Scalability is about handling increased load, not security.
Question #24
Which technology does IBM Cloud Direct Link use to achieve high availability with two connections?
- A . Using Equal-Cost MultiPath (ECMP) with diversity
- B . Using Equal-Path MultiCost (EPMC) with diversity
- C . Using GRE Tunneling
- D . Using VPN connections with diversity
Correct Answer: A
Question #25
The client requires 99.99% uptime.
Why would a Citrix NetScaler help in this case?
- A . Predictability
- B . Scalability
- C . Reliability
- D . Availability
Correct Answer: D
D
Explanation:
A Citrix NetScaler (now known as Citrix ADC) is designed to improve the availability of applications by providing advanced load balancing, traffic management, and redundancy features. It ensures that applications remain accessible even in the event of server failures or high traffic volumes.
Why Citrix NetScaler Improves Availability: It distributes incoming traffic across multiple servers to prevent overload on a single server, thus maintaining application uptime. It also provides failover capabilities, ensuring that if one server fails, traffic is rerouted to other healthy servers.
Comparison with Other Options:
A (Predictability): While Citrix NetScaler can improve predictability, its main function is related to availability.
B (Scalability): Citrix NetScaler can aid in scalability, but this is not the primary benefit for achieving 99.99% uptime.
C (Reliability): While reliability is an aspect, the key feature directly supporting 99.99% uptime is availability.
Reference:
Citrix ADC Documentation
IBM Cloud Load Balancer Services
IBM Cloud Architect Exam Study Guide
D
Explanation:
A Citrix NetScaler (now known as Citrix ADC) is designed to improve the availability of applications by providing advanced load balancing, traffic management, and redundancy features. It ensures that applications remain accessible even in the event of server failures or high traffic volumes.
Why Citrix NetScaler Improves Availability: It distributes incoming traffic across multiple servers to prevent overload on a single server, thus maintaining application uptime. It also provides failover capabilities, ensuring that if one server fails, traffic is rerouted to other healthy servers.
Comparison with Other Options:
A (Predictability): While Citrix NetScaler can improve predictability, its main function is related to availability.
B (Scalability): Citrix NetScaler can aid in scalability, but this is not the primary benefit for achieving 99.99% uptime.
C (Reliability): While reliability is an aspect, the key feature directly supporting 99.99% uptime is availability.
Reference:
Citrix ADC Documentation
IBM Cloud Load Balancer Services
IBM Cloud Architect Exam Study Guide
Question #26
An architect recently deployed a multizone Red Hat OpenShift cluster on IBM Cloud. The architect
wants to ensure that if one data center becomes unavailable, the service will spin up worker nodes in
another data center without human intervention.
Which functionality enables this requirement?
- A . Load balancing
- B . Network forwarding
- C . Autoscaling
- D . Init-node script automation
Correct Answer: C
C
Explanation:
Autoscaling enables automatic scaling of resources in response to demand or failure events, ensuring that a multizone Red Hat OpenShift cluster on IBM Cloud can dynamically spin up worker nodes in another data center if one becomes unavailable. Autoscaling allows for maintaining service availability without human intervention, thus achieving the required resiliency.
How Autoscaling Works: Autoscaling automatically adjusts the number of worker nodes in a cluster based on predefined metrics such as CPU usage, memory usage, or other health checks. In the event of a zone failure, it can scale out to other available zones to maintain service continuity.
Importance of Autoscaling for Resiliency: By automatically provisioning new resources when needed, autoscaling reduces the risk of downtime and ensures consistent application performance.
Comparison with Other Options:
A (Load balancing): Distributes traffic but does not scale resources.
B (Network forwarding): Related to network routing, not scaling resources.
D (Init-node script automation): Involves initial setup, not dynamic scaling.
Reference:
IBM Cloud Kubernetes Service Autoscaling
IBM Cloud OpenShift Documentation
IBM Cloud Architect Exam Study Guide
C
Explanation:
Autoscaling enables automatic scaling of resources in response to demand or failure events, ensuring that a multizone Red Hat OpenShift cluster on IBM Cloud can dynamically spin up worker nodes in another data center if one becomes unavailable. Autoscaling allows for maintaining service availability without human intervention, thus achieving the required resiliency.
How Autoscaling Works: Autoscaling automatically adjusts the number of worker nodes in a cluster based on predefined metrics such as CPU usage, memory usage, or other health checks. In the event of a zone failure, it can scale out to other available zones to maintain service continuity.
Importance of Autoscaling for Resiliency: By automatically provisioning new resources when needed, autoscaling reduces the risk of downtime and ensures consistent application performance.
Comparison with Other Options:
A (Load balancing): Distributes traffic but does not scale resources.
B (Network forwarding): Related to network routing, not scaling resources.
D (Init-node script automation): Involves initial setup, not dynamic scaling.
Reference:
IBM Cloud Kubernetes Service Autoscaling
IBM Cloud OpenShift Documentation
IBM Cloud Architect Exam Study Guide
Question #27
What are two benefits of using IBM Cloud Container Registry?
- A . Set up your own single-tenant image namespace in a highly available, scalable, encrypted private registry that is hosted and managed by IBM
- B . Benefit from unlimited free storage and pull traffic to your private images for an unlimited term
- C . Store your private images and share them with users in your IBM Cloud account
- D . ILMT is built-in to ensure compliance with IBM Licensing terms
- E . The built-in Vulnerability Advisor feature that scans for potential security issues and vulnerabilities
Correct Answer: CE
Question #28
A customer, who is implementing VMware vCenter Server in IBM Cloud, is keen that it is protected with replication and disaster recovery capabilities.
What single product meets the requirement?
- A . IBM Cloud backup
- B . IBM Tivoli for Cloud
- C . Veeam-DR
- D . Zerto
Correct Answer: D
Question #29
A VP of Security wants to find a solution to host Linux workloads in IBM Cloud with a requirement that no external access to the data is allowed, including privileged users such as cloud administrators.
Which service would meet this requirement?
- A . Power Virtual Servers
- B . Virtual Server in VPC
- C . Hyper Protect Virtual Servers
- D . High Security Bare Metal Servers
Correct Answer: C
Question #30
For File Storage Configuration, what are jumbo frames?
- A . Network Frames that manage payload communication
- B . Local Virtual Frames that are used for network communication
- C . Ethernet Frames with a large payload that is used on local area networks
- D . Ethernet Frames used to manage payload configuration
Correct Answer: C