PropProfs is garbage/useless for the modern tests. Since Microsoft has ended free security updates for XP, don't expect much XP (or any pre-xp OS) questions for the newer exams in the future.
Last time I checked, beginning on early 2013, the A+, Net+, and Sec+, have "simulation" based questions. I.e., these aren't multiple choice. An example is matching (by click & hold, and then dragging pictures with certain terms. These are nothing compared to CCNA, so I wouldn't be too worried.
The future of computer fixing/maintenance are tablets, smartphones and laptops, with the 1st two commonly using non-Microsoft operating systems. A+ is quite useless in that regard, but it's still worth getting, so the HR/recruiter has a lesser chance of tossing your resume in the trash. Net+ and Sec+ (escpecially Sec+, the hardest, since some questing feel like they should have 2 answers instead of just 1), are worth studying and getting imo. Net+ ($250), is kinda useless, if you are willing to study for the CCNA ($300), but then again, if you want the HR/recruiter, to not trash your resume, it's still worth getting.
If you take A+, Net+, and Sec+, then you only need to take the Sec+ to have the other two re-newed as well. If you only take A+, and Net+, then you only need to take Net+, to renew Net+ and A+ at the same time; no need to take A+ again. If i were hiring, I wouldn't hire those who took their tests before 2010, when renewal every 3 years is required because, technology has come quite far, e.g., IPv6. IMO, these certs are there, so one doesn't ask stupid questions on the job, like, "what's virtualization?", or "whats that invention that came out in 2011 or so....?"
By the way, if you don't have any real industry experience, or a 4 year STEM college degree with a good GPA, or not willing to do unpaid internships (free work), you're gonna have a hard time getting an entry level job, no matter how much certs you have.