The primary command-line utility for managing and verifying Check Point's subscription-based licenses, known as "Smart Contracts," on a Security Gateway is contractsmgmt. This tool allows administrators to fetch, attach, detach, and view the status of contracts directly from the command line. Additionally, the cpconfig utility, a general-purpose configuration tool, provides a menu-driven interface that includes an option for "Licenses and contracts," allowing for their verification and management. These two commands are the standard methods for this task.

B. cpcontract is not a valid or recognized Check Point command-line utility.

C. cpinfo is a diagnostic tool used to collect comprehensive system data for support cases, not for direct contract verification. cplic is a valid but older utility for managing traditional licenses.

D. contractjtil is not a valid or recognized Check Point command-line utility.

1. Check Point R81.1 CLI Reference Guide, Page 219, "contractsmgmt": "Use the contractsmgmt command to manage contracts on a Security Gateway. You can use this command to: Fetch contracts from the User Center. Attach a contract to the Security Gateway. Detach a contract from the Security Gateway. Show information about contracts."

2. Check Point R81.1 CLI Reference Guide, Page 225, "cpconfig": "Use the cpconfig command to configure a Check Point Security Gateway... The Check Point Configuration Tool menu opens. It shows these options: ... (5) Licenses and contracts".

3. Check Point R81.1 Security Administration Guide, Page 101, "Managing Licenses from the Command Line": "On a Security Gateway, you can run CLI commands to manage licenses and contracts. For contracts, use the contractsmgmt command. For licenses, use the cplic command." This highlights contractsmgmt as the specific tool for contracts.