Think I'm ready to test, but....

in CCNA & CCENT
...I've never taken a Cert test before. I am using the Test Out 640-801 test prep and can pass the post test "nearly" every time I take it. The question I have is about the reliability of the Test Out software. Is the post test a good indication of how well I could do on the actual test? The post test has 66 questions of which you need a 95% to pass. I feel comfortable with what I have learned, but am unsure if it is enough to pass the 640-801 exam. Any info would be appreciated. Thanks
Comments
What kind of foundation or backround in networking do you have? I can tell you that testout is not near enough to pass the CCNA. It's no slouch. No matter how many practice tests you take, there will always be surprises and questions you have not seen yet, therefore you have to know your stuff well enough to execute the unexpected. Tesout, combined with some equipment or a SIM, and heavy reading is on the right track.
(7) 6509 Catalysts, one with the router module (Session 15)
(4) 4006 Catalysts
(10) 3500 series Switches
(5) 2950 Switches
(4) 2600 Routers
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(1) PIX 520
(1) PIX 515e
I have attended the Cisco Intro class and the Interconnecting Cisco Devices class in order to perform my job duties above. I have worked with the above equip daily for the past 5 years and am currently updating the backbone to 10Gig. I have never taken a CERT exam though, but would like to give it a go. We have the TestOut entire library of prep disks at work so that is why I am using this software.
I just found this web site last night and have been reading through the various entries. This is a great site. I agreee, I should take a look at other practice tests. TestOut practice tests are good, but I have pretty much memorized the various questions and feel like I need to take some tests from other sources.
Thanks again for everyone's help.
However, I'd still purchase a CCNA book from Lammle, 801 or 802 depending on which test you're taking. Be forewarned, however, that the 640-802 contains a lot on SDM, and uses a lot of examples that require a 2811 router (at least $1000). Though you can do a lot of what the 802 requires with just an 1841 as Lammle suggests in his CCNA 802 6th edition text. I haven't taken the 802, however, so I'm no expert. But since it contains a lot of new material, such as SDM, ACLs with SDM, IPv6, the whole gambit of 802.11 WLAN, etc., I'd buy a book. Just read as much as you can because most experienced network guys, despite years of experience, don't really understand the technology behind the deployment of their networks. Which is exactly what Cisco intended AFAIK; you're not supposed to pass CCNA with nothing but hands-on experience. For example, you don't really need to know about the original DoD model if you're a network admin.
In my personal opinion the TestOut Software was excellent although I've only taken the Intro I found the topics covered very well except for PAT and NAT...I'd look into another test software to be sure but i feel the software did very well...