Hello dolev6304,
Since, it has 180 days of access, you can use multiple times...So, You will find answers of those questions..
The main intention of providing Cisco Exam review...is, Once your CCNA preparation is done ( Includes Training (class room/virtual)+ Official Cert Guide..etc) and it helps you to test your knowledge accross different domains.. before going final exam...
If you came to know...you reqired more attention on one or more domains (like wireless domain)...so you have the oppertunity to go much deeper into the doamin... that makes you stronger for your final exam....
The final/Certification exam questions not from the pool...you may get few of them, but there no guarantee...!!
Best regards
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