Communications and computer network skills and employment trends in Chester

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Skill / Job Role (Historical trends & salary statistics)	Rank 6 Months to 26 May 2018	Rank Change Year-on-Year	Median Salary 6 Months to 26 May 2018	Median Salary % Change Year-on-Year	Historical Permanent Job Ads	Live Job Vacancies
DNS	42	-	£30,000	-	12 (3.88%)	2
WAN	43	-7	£27,500	-12.69%	11 (3.56%)
DHCP	43	-	£30,000	-	11 (3.56%)
LAN	44	-8	£27,500	-12.69%	10 (3.24%)
TCP/IP	44	-8	£24,250	-26.51%	10 (3.24%)	2
VPN	47	-3	£21,000	-30.00%	7 (2.27%)
Firewall	47	-5	£27,500	-14.06%	7 (2.27%)
WLAN	49	-5	£20,000	-33.33%	5 (1.62%)
Internet	49	-24	£45,000	+28.57%	5 (1.62%)	1
Network Security	50	-5	£50,000	-13.04%	4 (1.29%)
HTTP	51	-	£37,500	-	3 (0.97%)	3
SAN	51	-6	-	-	3 (0.97%)
Intranet	51	-	£45,000	-	3 (0.97%)	1
VLAN	51	-9	£30,000	+5.26%	3 (0.97%)
SMS	52	-	£22,500	-	2 (0.65%)
PBX	53	-8	-	-	1 (0.32%)
VoIP	53	-13	-	-	1 (0.32%)
Ethernet	53	-20	£21,000	-61.81%	1 (0.32%)
MPLS	53	-	£52,500	-	1 (0.32%)
Unified Communications	53	-8	-	-	1 (0.32%)