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Results 1 - 100 of 104
| Firewall | 57 | -21 | £42,500 | -7.60% | 264 (4.44%) | 75 |
| TCP/IP | 104 | -4 | £37,500 | -16.66% | 157 (2.64%) | 44 |
| DNS | 110 | -16 | £38,500 | +10.00% | 150 (2.52%) | 48 |
| WAN | 121 | -59 | £42,500 | -10.52% | 136 (2.29%) | 29 |
| LAN | 127 | -60 | £41,500 | -12.63% | 128 (2.15%) | 29 |
| VPN | 157 | -52 | £52,500 | +41.66% | 96 (1.61%) | 33 |
| DHCP | 158 | -51 | £37,500 | +19.04% | 95 (1.60%) | 40 |
| Network Security | 172 | -57 | £46,000 | -12.38% | 81 (1.36%) | 17 |
| Wireless | 179 | -83 | £37,616 | -20.80% | 74 (1.24%) | 66 |
| Internet | 182 | -78 | £41,500 | +7.79% | 71 (1.19%) | 34 |
| HTTP | 185 | -41 | £45,500 | +4.00% | 68 (1.14%) | 13 |
| VoIP | 204 | -117 | £42,500 | +10.38% | 49 (0.82%) | 13 |
| Wi-Fi | 205 | -94 | £42,500 | -10.52% | 48 (0.81%) | 46 |
| Profibus | 211 | - | £62,500 | - | 42 (0.71%) | 2 |
| SAN | 213 | -70 | £47,500 | -11.62% | 40 (0.67%) | 12 |
| VLAN | 214 | -101 | £38,500 | -9.41% | 39 (0.66%) | 18 |
| Modbus | 217 | -64 | £60,000 | - | 36 (0.61%) | 6 |
| Skype | 217 | -102 | £28,500 | +7.54% | 36 (0.61%) | 2 |
| Cisco ASA | 223 | -94 | £47,500 | -13.63% | 30 (0.50%) | 6 |
| Broadband | 224 | -90 | £70,000 | +84.21% | 29 (0.49%) | 11 |
| SMTP | 228 | -83 | £56,250 | +7.14% | 25 (0.42%) | 2 |
| FTP | 229 | -80 | £56,250 | - | 24 (0.40%) | 6 |
| BGP | 230 | -111 | £50,500 | +6.31% | 23 (0.39%) | 3 |
| SD-WAN | 230 | -85 | £50,500 | -12.17% | 23 (0.39%) | 7 |
| MPLS | 231 | -115 | £50,500 | +6.31% | 22 (0.37%) | 7 |
| RS-485 | 231 | -78 | £60,000 | - | 22 (0.37%) | |
| HTTPS | 233 | -81 | £64,500 | +98.46% | 20 (0.34%) | 22 |
| OSPF | 233 | -97 | £50,500 | -12.17% | 20 (0.34%) | |
| NetScaler | 233 | -94 | £50,000 | +25.00% | 20 (0.34%) | 5 |
| Ethernet | 234 | -85 | £50,000 | -2.43% | 19 (0.32%) | 15 |
| RS-422 | 234 | -81 | £55,000 | - | 19 (0.32%) | |
| Kerberos | 235 | -82 | £45,000 | - | 18 (0.30%) | 2 |
| MQTT | 235 | -86 | £62,500 | +4.16% | 18 (0.30%) | |
| Intranet | 236 | -87 | £21,000 | -41.66% | 17 (0.29%) | 2 |
| Remote Desktop | 237 | - | £29,000 | - | 16 (0.27%) | 7 |
| Intrusion Detection | 238 | -89 | £57,500 | +4.54% | 15 (0.25%) | 3 |
| Software-Defined Radio | 238 | -100 | - | - | 15 (0.25%) | 1 |
| SSL | 239 | -94 | £77,500 | +3.33% | 14 (0.24%) | 1 |
| NAS | 239 | -87 | £41,500 | +3.75% | 14 (0.24%) | 2 |
| Cisco Nexus | 239 | -100 | £45,000 | -10.00% | 14 (0.24%) | 6 |
| WLAN | 240 | -102 | £58,750 | +23.68% | 13 (0.22%) | 7 |
| Cisco IPT | 240 | -87 | - | - | 13 (0.22%) | |
| Cisco Firepower | 241 | -101 | £45,000 | -16.27% | 12 (0.20%) | 2 |
| ADSL | 242 | - | £26,000 | - | 11 (0.19%) | 1 |
| PBX | 242 | -93 | £52,500 | +138.63% | 11 (0.19%) | |
| RS-232 | 243 | - | £49,500 | - | 10 (0.17%) | 3 |
| DSL | 244 | - | £26,000 | - | 9 (0.15%) | |
| SNMP | 245 | -92 | £42,250 | - | 8 (0.13%) | 3 |
| IPsec | 245 | -94 | £77,500 | +11.11% | 8 (0.13%) | 1 |
| InfiniBand | 245 | - | - | - | 8 (0.13%) | |
| IPv6 | 246 | -117 | £62,500 | +38.88% | 7 (0.12%) | 3 |
| Cisco IOS | 246 | -94 | £32,000 | -1.53% | 7 (0.12%) | 1 |
| Structured Cabling | 246 | -93 | £40,000 | +110.52% | 7 (0.12%) | |
| VPLS | 247 | -94 | £50,500 | +26.25% | 6 (0.10%) | 1 |
| iSCSI | 247 | -94 | £50,000 | +53.84% | 6 (0.10%) | 3 |
| AMQP | 247 | -94 | £70,000 | +11.11% | 6 (0.10%) | |
| PSTN | 248 | - | £40,000 | - | 5 (0.084%) | |
| IPv4 | 248 | -118 | £62,500 | +38.88% | 5 (0.084%) | 1 |
| Wireshark | 248 | -99 | £55,000 | -18.51% | 5 (0.084%) | 3 |
| GPON | 248 | - | £36,500 | - | 5 (0.084%) | 4 |
| Softswitch | 248 | - | £52,500 | - | 5 (0.084%) | |
| Junos | 248 | -107 | £47,500 | -13.63% | 5 (0.084%) | |
| Bluetooth | 249 | -105 | - | - | 4 (0.067%) | 18 |
| DECT | 249 | - | £27,700 | - | 4 (0.067%) | |
| ISDN | 249 | - | £39,000 | - | 4 (0.067%) | 1 |
| SDH | 249 | -96 | £36,500 | -39.16% | 4 (0.067%) | |
| DWDM | 249 | -99 | £36,500 | -47.85% | 4 (0.067%) | |
| Multicast | 249 | - | £70,000 | - | 4 (0.067%) | 2 |
| Software-Defined Networking | 249 | - | £42,500 | - | 4 (0.067%) | 3 |
| CTI | 250 | - | £52,500 | - | 3 (0.050%) | |
| EIGRP | 250 | - | - | - | 3 (0.050%) | |
| RSVP | 250 | -97 | £50,500 | +26.25% | 3 (0.050%) | |
| TETRA | 250 | -97 | £40,000 | -50.00% | 3 (0.050%) | 2 |
| SSH | 250 | - | £69,000 | - | 3 (0.050%) | |
| Unified Communications | 250 | -106 | £50,000 | -23.07% | 3 (0.050%) | 2 |
| PABX | 250 | - | £25,000 | - | 3 (0.050%) | 1 |
| NX-OS | 250 | -97 | £58,750 | - | 3 (0.050%) | |
| Cisco Wireless | 250 | - | £52,500 | - | 3 (0.050%) | 2 |
| 3GPP | 251 | -101 | £70,000 | +40.00% | 2 (0.034%) | 3 |
| PPP | 251 | - | £57,500 | - | 2 (0.034%) | 2 |
| RTP | 251 | -102 | £52,500 | - | 2 (0.034%) | |
| STUN | 251 | -100 | £52,500 | - | 2 (0.034%) | |
| LTE | 251 | -102 | - | - | 2 (0.034%) | 8 |
| DCCP | 251 | - | £70,000 | - | 2 (0.034%) | |
| Fibre Channel | 251 | -98 | £42,500 | - | 2 (0.034%) | 1 |
| F5 BIG-IP LTM | 251 | - | £58,750 | - | 2 (0.034%) | |
| Cisco ISE | 251 | -108 | £58,750 | +17.50% | 2 (0.034%) | |
| WebEx | 251 | - | £51,250 | - | 2 (0.034%) | 1 |
| FabricPath | 251 | - | - | - | 2 (0.034%) | |
| 5G | 251 | -100 | - | - | 2 (0.034%) | 9 |
| DKIM | 251 | - | - | - | 2 (0.034%) | |
| DMARC | 251 | - | - | - | 2 (0.034%) | |
| RIP | 252 | - | - | - | 1 (0.017%) | |
| DMZ | 252 | - | - | - | 1 (0.017%) | |
| Extranet | 252 | - | - | - | 1 (0.017%) | |
| PPTP | 252 | - | £45,000 | - | 1 (0.017%) | |
| VRRP | 252 | - | £42,500 | - | 1 (0.017%) | |
| Megaco | 252 | - | - | - | 1 (0.017%) | |
| SCCP | 252 | - | - | - | 1 (0.017%) | |
| IP Telephony | 252 | - | £32,500 | - | 1 (0.017%) | 1 |
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