CONSUL

a. Programming Language used to create Consul:

The "Go programming language" was created by engineers at Google and is known for its efficiency, concurrency support, and straightforward syntax. Consul utilizes "Go" for its core functionalities and benefits from its capabilities in building scalable and performant systems, which are crucial for a tool handling service discovery, health checking, key-value storage, and distributed systems coordination.

b. Parent company of Consul:

Consul, the tool for service networking, is developed and maintained by HashiCorp, a company known for its various infrastructure automation tools like Vagrant, Terraform, Vault, and others. "HashiCorp" is the parent company behind Consul, responsible for its development, updates, and support.

c. Tool overview:

Purpose:
Consul is a powerful tool designed to provide several key functionalities for modern distributed systems:
1.Service Discovery
2.Health Checking
3.Key-Value Store
4.Multi-Datacenter Awareness
5.Secure Service Communication
Functionality:
Consul core functionalities include:
1.Multi-Datacenter Support
2.Service Segmentation and Routing
3.Event Triggers
4.Consul UI and API

d. Logo of Consul:

e. Whether Consul is open source or paid one:

Consul is an open-source tool developed and maintained by HashiCorp, the same company behind popular infrastructure tools like Terraform and Vault.However, HashiCorp also offers an enterprise version of Consul, which includes additional features, support, and capabilities tailored for larger-scale deployments and enterprise environments.