ticketing systems , knowledge management systems , Application troubleshooting, Basic Sql, Windows and Microsoft 365, Programming concept JavaScript, Log monitoring CloudWatch Elastic or similar, Data extraction tools, Cloud Platform Knowledge S3 bucket Lambda EC2

Proofpoint, Vmware Vsphere, PowerShell, Windows Active Directory, Microsoft Intune, Microsoft 365, Microsoft Hyper-v, Microsoft Entra ID, Cisco switching and networking, Fortinet switches and firewalls, JumpCloud, Veeam Backup Replication

DNS - Route 53 DNS record types TTL management resolution troubleshooting, Firewalls - Security group rule design least privilege access troubleshooting blocked traffic, VPN - Site-to-site VPN IKE IPsec configuration tunnel troubleshooting SNAT NAT over VPN, Routing - Static routing BGP basics route table design asymmetric routing diagnosis, AWS Networking - VPC subnets route tables security groups NACLs VGW CGW, Network Troubleshooting - tcpdump Wireshark traceroute connectivity debugging, Monitoring - Tools like DataDog Solar Winds Prometheus PRTG