Explanation
= Summon is a command-line tool that provides on-demand secrets access for common DevOps tools. It reads a file in secrets.yml format and injects secrets as environment variables into any process. The secrets.yml file is where you define which secrets to retrieve from a trusted store, such as CyberArk Secrets Manager. The secrets.yml file specifies the name and location of each secret, as well as the environment variable to assign it to. For example, a secrets.yml file could look like this:
DB_USERNAME: !var dev/my-app/db-username DB_PASSWORD: !var dev/my-app/db-password This means that Summon will fetch the values of dev/my-app/db-username and dev/my-app/db-password from the trusted store, and assign them to the environment variables DB_USERNAME and DB_PASSWORD, respectively. Then, Summon will run the specified process with these environment variables set, and remove them once the process exits. This way, Summon enables secure and convenient access to secrets without exposing them in plain text or storing them in files.
References = Summon by cyberark - GitHub Pages; Using Summon to Manage Secrets as You Move From Dev to Prod

Explanation

The correct sequence of installation steps for a Credential Provider on a Linux host is as follows:
Download the correct install package to a directory on the Linux host and decompress1.
Copy the aimparms.sample file to /var/tmp/aimparms. Create a Credential File with an account with sufficient permissions to install. Modify the Vault.ini file to point to the correct vault2.
Install the correct Credential Provider package for the distribution of Linux using the command: rpm
-ivh CARKaim-<version+build number>.<distribution>.rpm2.
Check that the aimprv service is running using the command: service aimprv status2.
References: 1: Download the Credential Provider 2: Install Credential Provider on Linux / AIX

Explanation
According to the CyberArk Sentry Secrets Manager documentation, the Secrets Provider for Kubernetes can be deployed as an init container or a sidecar in Push-to-File mode. In Push-to-File mode, the Secrets Provider pushes Conjur secrets to one or more secrets files in a shared volume in the same Pod as the application container. The application container can then consume the secrets files from the shared volume. The deployment option that should be used to support rotation with Push-to-File mode is the sidecar, because the sidecar can run continuously and check for updates to the secrets in Conjur. If changes are detected, the sidecar can update the secrets files in the shared volume. The init container, on the other hand, runs to completion and does not support rotation. The application container and the service broker are not valid deployment options for the Secrets Provider for Kubernetes in Push-to-File mode. References: 1: Secrets Provider - Init container/Sidecar - Push-to-File mode 2: Secrets Provider - init container/sidecar - Push-to-File mode

Explanation
This is the correct answer because the Conjur CLI is a tool that allows users to interact with the Conjur REST API from the command line. The Conjur CLI can be run on Windows, Red Hat Enterprise Linux, and macOS operating systems, as well as in Docker containers. The Conjur CLI can be installed using various methods, such as downloading the executable file, using a package manager, or pulling the Docker image. The Conjur CLI supports Conjur Enterprise 12.9 or later versions. This answer is based on the CyberArk Secrets Manager documentation1 and the CyberArk Secrets Manager training course2.
The other options are not true statements for the Conjur CLI. The Conjur CLI can be run from any machine that has network access to the Conjur server, not only from the Conjur Leader node. The Conjur Leader node is the node that performs read/write operations on the Conjur database and policy engine, and hosts the Conjur UI and API endpoints. The Conjur CLI is not required for working with the Conjur REST API, as users can also use other tools, such as curl, Postman, or web browsers, to send HTTP requests to the Conjur REST API.
The Conjur CLI does implement the Conjur REST API for managing Conjur resources, such as roles, policies, secrets, and audit records. The Conjur CLI provides a set of commands that correspond to the Conjur REST API endpoints and allow users to perform various operations on the Conjur resources.