Possession of one (or more) of the following certifications may also be required (depending on position requirements): Microsoft Certified Systems Engineer (MCSE), or a Microsoft Certified Solutions Associate (MCSA), or a combination of 2 or more of the following certifications: Microsoft Certified Office Specialist Master, Microsoft Certified Desktop Support Technician (MCDST), Microsoft Certified Professional (MCP), HP Printer Support, HP Hardware Support, Cisco Certified Network Associate (CCNA), Cisco Certified Network Associate Voice (CCNA Voice), CompTIA A+, CompTIA Network+, CompTIA Security+, Nortel/Avaya VoIP. Possession of one (or more) of the following certifications may also be required (depending on position requirements): Microsoft Certified Systems Engineer (MCSE), or a Microsoft Certified Solutions Associate (MCSA), or a combination of 2 or more of the following certifications: Microsoft Certified Office Specialist Master, Microsoft Certified Desktop Support Technician (MCDST), Microsoft Certified Professional (MCP), HP Printer Support, HP Hardware Support, Cisco Certified Network Associate (CCNA), Cisco Certified Network Associate Voice (CCNA Voice), CompTIA A+, CompTIA Network+, CompTIA Security+.