Free Practice Questions for IBM C1000-142 Exam

Explanation

Object Storage is suitable for the backup of a database in cloud storage.

DevOps is an increasingly common approach to agile software development that developers and operations teams use to build, test, deploy and monitor applications with speed, quality and control. DevOps is relevant to any kind of software project regardless of architecture, platform or purpose. DevOps enables fast and automated deployment of services. DevOps brings together development and operations teams to overcome configuration and deployment delays. With a DevOps strategy you can do the following: - Accelerate the delivery of reliable software. - Balance speed, cost, quality, and risk with increased capacity to innovate. - Reduce time to customer feedback with improved customer experience.

Containers are lightweight and portable executable units (images) of software. They supply portability between different platforms and clouds. Containers are self-contained units that are designed to hold applications as well as all libraries and dependencies that the application requires. Containers can be run on physical computers or in the cloud.

Containers do not have an operating system of their own. Instead, they access the operating system of the device they are running on using a hypervisor. This allows them to be more light-weight, easier to provision, and much smaller than traditional virtual machines.

Virtual machine is a virtual re-presentation of physical computer, you can understand it as a computer inside a computer. Each individual virtual machine behaves exactly as though it were its own computer. It has its own operating system, memory, storage, and compute and is totally unaware of other virtual machines that could be running on the same host.

How do containers differ from a traditional VM?

Traditional virtualization leverages a hypervisor to virtualize physical hardware. Each VM contains:

- A guest operating system (OS)

- A virtual copy of the hardware that the OS requires to run

- An application and its associated libraries and dependencies

- Containers, on the other hand, virtualize the operating system. Each container only contains:

- The application

- Its libraries

- Its dependencies

MongoDB is a cross-platform document-oriented database.

An Access Control List (ACL) can manage (that is, it can allow or deny) inbound and outbound traffic for a subnet. An ACL is stateless, which means that inbound and outbound rules must be specified separately and explicitly. Each ACL consists of rules, based on a source IP, source port, destination IP, destination port, and protocol. Every VPC has a default ACL that allows all inbound and outbound traffic. You can edit the default ACL rules, or create a custom ACL and attach it to your subnets. A subnet can only have one ACL attached to it at any time, but one ACL can be attached to multiple subnets. To make your ACLs effective, create rules that determine how to handle your inbound and outbound network traffic. With inbound rules, you can allow or deny traffic from a source IP range, with specified protocols and ports. With outbound rules, you can allow or deny traffic to a destination IP range, with specified protocols and ports. ACL rules are prioritized and considered in sequence. Higher priority rules are evaluated first and override lower priority rules. Inbound rules are separated from outbound rules. If no rules are specified, then implicit deny is the default behavior.

Explanation

Block storage, sometimes referred to as block-level storage, is a technology that is used to store data files on Storage Area Networks (SANs) or cloud-based storage environments. Developers favor block storage for computing situations where they require fast, efficient, and reliable data transportation.

Cloud migration is the process of relocating an organization’s data, applications, and workloads to a cloud infrastructure. Enterprises typically migrate workloads to a cloud to improve operational performance and agility, workload scalability, and security. Key Drivers Related to Cloud Migration are Agility, Flexibility and Competitiveness.

Explanation

Analytics Engine service develop and deploy analytics applications using open source Apache Spark and Apache Hadoop. Customize the cluster using your own analytics libraries and open source packages. Integrate with IBM Watson Studio or third-party applications to submit jobs to the cluster. HIPAA readiness option available in the Dallas region for Standard-Hourly and Standard-Monthly plans.