SSL/TLS DNS DHCP WINS NTP

ISPF/TSO JCL CLIST Dialog Manager

Java SQL Server Junit Jenkins Jira

frameworks/APIs Core Data GCD NSOperationQueue Core Graphics

Mobile iOS Swift Git/Github C XCode

DCS CCS

TCP/IP DHCP DNS QOS RDMA

Azure DevOps SCRUM Agile DCS

TCP/IP VLAN DHCP DNS RADIUS

DCS CCS

SDK SQLite Database iPad X Code XML-JSON Parsing

Python Py Spark Snowflake Databricks DBs / FlatFiles / Kafka + SQL

SCCM macOS iOS devices DHCP DNS

Python AWS Cloud GSC KSM VPC

JavaScript CSS HTML React Native Mobile iOS