if you ever wondered about what Cisco add as automation for new certs Here is the example i just read it From official cert ENCOR book CCNP 350-401

Before APIs were available on Cisco platforms, configuring a switch was a manual process.Cisco created the proprietary protocol, VLAN Trunking Protocol (VTP), to reduce theburden of provisioning VLANs on switches. Adding a VLAN might seem like a simpletask, but in an environment with 100 switches, adding a VLAN required logging in to100 switches to provision one VLAN. Thanks to VTP, switches that participate in the sameVTP domain can have a VLAN created once on a VTP server and propagated to otherVTP client switches in the same VTP domain.

WHAT A CHANGE :)
START CISCO TODAY TO SEE HOW AMAZING THE NETWORKING IS WOOW.CISCIO IS life

Believe me i owe cisco my entire life you know why ?
because cisco book got me first job and my current high paid job by just read CCNA
now i am landing to CCNP ENCOR book almost read 6 chapters
i love networking i am not willing to get certs dont know in future but for now i love to read cisco books especially new certs which include a lot of automation that makes your configuration easier as before .