I hope there is nothing in this world that only man can do. Women also doing the same thing, and women are doing something that man cannot do in this world. So, You need to have positive thought and will to get the job in this field.
There were companies hiring women for networking who could support server activities by sitting at remote location. Some companies like wipro and other are having network support in india, who support the server activities in cloud. You can check social networking sites, in which you can see that there were so-many women have completed this course and settled in big companies.
Nothing is impossible for the man who keep on trying.