Match each weakness with an example. $($Not all options are used.$)$a$)$ technological weaknessb$)$ configuration weaknessc$)$ security policy weakness$1)$ An employee is trying to guess the password of another user$\mathrm{.}2)$ When implementing an access list on a router, a network engineer did not filter a type of malicious traffic$\mathrm{.}3)$ A network engineer is examining the operating system of a network device for vulnerabilities$\mathrm{.}4)$ The network administrator did not fully consider the implications of unauthorized users accessing the network.