The following protocols and system are commonly used to provide various degrees of security services in computer network. i) IP filtering ii) Reverse Address Translation iii) IP security Architecture (IPsec) iv) Firewalls v) SocksCOMPUTER / By admin / April 30, 2023 August 1, 2023 Ai, ii, iii and iv only Bi, iii, iv and v only Cii, iii, iv and v only DAll i, ii, iii, iv and v Answer Detail