Network + Help

Guys, I’m studying for the Network + Exam using material provided by Quickcert. At my age, it’s hard enough to study again so bear with me if I seem a bit overwhelmed. I do basic networking which means a lot of this stuff is new to me. Has anyone taken this exam and if so could you please give some help in terms of things to focus on. Additionally, I hope Quickcert prepares me. I don’t have any complaints but I don’t wan to be wasting me time. Thanks in advance.