· Languages: C, C++, Java, Jsp, PHP, ASP, HTML, XML, XHTML.· Operating Systems: Windows, Dos, Linux· Designing Tool: Visual Studio· Testing Tools: GDB, Valgrind, Rational Purify, Purecov, Quantify, Winrunner· Code analysis tools: Understanding C++, Winmerge· Configuration management tools: VSS, CVS, tortoise SVN. Application Servers: JBoss, Apache Tomcat· Protocols: o Application: CBR, MCBR, FTP, SIP, SDP. o Transport: TCP/IP, UDP o Network§ Security: IPSec, ISAKMP, IAHEP, IKE.§ Routing: OSPFv2, IGMP, BellmanFord, PIM, BGP, AODV.§ Multicast: DVMRP, PIM-DM, PIM-SM, MOSPF. o Automation: CAN, OPC.· Network Architecture: o 2G 2.5G, 3G. o GSM/GPRS, BSC, BTS, PCUSN, MSC o SS7 architecture o Parlay, Parlay X o SOAP, Http, SOA, Web Services Amit Kumar