Online Cisco Certification Exam–Pass4side

• First, by becoming a Sun Certified Associate Sun verifies that you have a base set of knowledge that enables entry into a career in application development or software project management using Java technology.
• Second, we train developers on a foundational set of skills, which can then be validated by becoming a Sun Certified Programmer.
• Afterwards, you can pursue advanced or specialty training and certifications that help enable career growth into more specific job roles making you more valuable to an organization.

Sun offers the following Java technology professional certifications:
- Sun Certified Java Associate (SCJA)
- Sun Certified Java Programmer (SCJP)
- Sun Certified Java Developer (SCJD)
- Sun Certified Web Component Developer (SCWCD)
- Sun Certified Business Component Developer (SCBCD)
- Sun Certified Developer For Java Web Services (SCDJWS)
- Sun Certified Mobile Application Developer (SCMAD)
- Sun Certified Enterprise Architect (SCEA)
Please note that the goal of Sun certification is to test on a particular job role. Thus, to prepare for a certification exam we recommend Sun training and six to twelve months of actual job role experience. Sun does not claim that by taking courses you are guaranteed to pass the certification exams, however we do state that Sun training is an important component in certification preparation. Please see training preparation methods corresponding with each certification listed above.

www.pass4side.com/sun.html

11. What are some common specifications for 802.11 WLAN antennas?
A. Spectral Purity Rating
B. Frequency Range in MHz
C. Impedance in Ohms
D. VSWR Rating
E. Return Loss Rating
F. Polarization
Answer: BCDF 

12. What word describes an RF signal that bounces off a smooth or coated surface and changes direction?
A. Diffraction
B. Reflection
C. Refraction
D. Diffusion
E. Scattering
Answer: B

More CWNP Certification information:
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13. What is the most common mount type for installing a wireless LAN antenna to an outdoor mast (pole)?
A. Suction cups with threaded posts
B. Perforated radome enclosure
C. Magnetic mount with bulkhead adapter
D. U-bolt with base clamp
E. Tilt-n-swivel universal mount with ratchet adjustment
Answer: D

1. What factors affect the propagation distance of an RF signal?
A. Antenna gain
B. Receiving station sensitivity
C. Fresnel zone blockage
D. Power over Ethernet (PoE) usage
E. Antenna polarization
F. Link budget calculations
Answer: AC 

2. Given: XYZ Corporation is experiencing connectivity problems with their existing building-to-building bridge link.
A brick wall on the roof of one building is partially blocking the Fresnel Zone, and the connection is dropping many
frames. The administrator moves the antenna to an area not obstructed by the brick wall and then realizes the RF cable
cannot reach the new location.
If an RF extension cable is used, what are the likely results?
A. The data throughput rate will increase because VSWR will decrease.
B. The Equivalent Isotropically Radiated Power (EIRP) will decrease.
C. The antenna coverage area will decrease.
D. The return loss will increase unless the impedance of the RF extension cable is equal to 50% of the antenna
impedance.
E. The likelihood of a direct lightning strike will increase, placing the entire WLAN system at risk.
Answer: BC

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3. While working on a presentation document in a conference room equipped with a wireless network, you notice that, as
you turn your laptop in different directions, your wireless signal strength changes. What RF signal property is primarily
responsible for this change in signal strength?
A. The RF signal’s amplitude is changing due to a change in the visual line-of-sight.
B. The RF signal’s wavelength is being affected by varying antenna gain.
C. The RF signal’s multipath is changing the amount of RF absorbed by nearby objects.
D. The RF signal’s phase is oscillating due to electromagnetic interference (EMI).
E. The RF signal’s polarization is different than the receiving antenna.
Answer: E

Object-Oriented JavaScript by Stoyan Stefanov is a first among JavaScript books. OOP in JavaScript is not new, but has gained much popularity since the use of JavaScript in Ajax and the development of JavaScript libraries and widgets from various web companies (especially Yahoo!). Learning how to create component-based applications using JavaScript is not an easy thing to master if all you know about JavaScript is doing “mouse-overs” or neat little effects. There really isn’t a book out there that really explains how OOP works in JavaScript completely.

This book really goes into detail in explaining how the syntax of JavaScript can be used to create scalable applications from the ground-up. I would say this book is geared for the developer who has a grasp on the language itself but wants to learn more in creating real useful applications for the web using JavaScript and wants to learn without depending on any pre-built library or component.
The author goes into the basics of the language first (chapter 1-2) then spends a chapter on functions (chapter 3) which is the many ways in JavaScript to create objects. Since JavaScript is not a fully OO language, it can get confusing on understanding the many different ways to create an object. Stoyan explains it very well with many examples so anybody can understand it.

The next few chapters (4 - 6), the author goes into OOP practices like how objects work, the Prototype built-in object, inheritance, and many of the built-in methods and properties you can use to manipulate your custom objects. Yes, object literal notation is covered in-depth since it really is the standard way in JavaScript to create objects.

The rest of the book has some excellent chapters on the BOM, DOM, Ajax and Design Patterns which really round out the book and make it worth it. I have never seen a book so complete on some of the more intermediate to advanced features of JavaScript and explaining it so anybody can learn it.