From RFID+ Study Guide and Practice Exam


Exam Objectives

What it Really Means

4.1 Classify tag types.

Understand the types (active and passive) and classes of the tags. You must understand that the passive tags can operate at all frequency ranges: LF, HF, and UHF. Especially don't forget the UHF passive tags. You must also understand that tags at LF and HF often use inductive coupling, and passive tags can use backscattering.

4.2 Given a scenario, select the optimal locations for an RFID tag to be placed on an item.

You must understand that the requirement in placing a tag is that it must be easily read by a reader. Also understand that tags need to be put into different forms before they can be attached to items. You must also know that different application requirements have given rise to different forms of tags such as inserts, smart labels, and tie-on tags. Understand the issues regarding the placement of tags such as tag orientation, material of and around the tag, and selecting the adhesive to attach the tag.


The items that you need to identify and track are tagged with, well, tags. So, a tag is the "better half" of the RFID system because it contains information about the item to which it is attached and has the capability to provide that information on request. A tag makes it to the item in three steps: The tag with the basic functionality is manufactured, the tag is turned into a label, and the label is placed...

Products & Services
RFID tags are microchips that assign an electronic identity to an article so it can be tracked electronically. RFID tags communicate with RFID readers via short-range radio frequencies. They are sometimes called transponders.
RFID Readers
RFID readers are devices which interrogate, identify, and amend RFID tags through the use of short-range radio signals. RFID tags assign a unique electronic identity to a physical asset.
RFID Chips
RFID Chips, or radio frequency identification chips use radio signals to transmit data over short distances.  They are typically used for security, tracking and identification applications.  RFID Chips can be paired with other circuitry to create a RFID tag or reader.
Label and Nameplate Services
Label and nameplate services design and manufacture labels, tags, nameplates and related products for identification, inventory control, packaging, decoration, and regulatory compliance. Companies produce serial number plates, instruction labels, RFID tags, shipping and packaging labels, company logos, decals, fleet wraps, barcode labels, and other forms of identification for products that require the display of alphanumeric or graphical images.
Data Collection Terminals
Data collection terminals are portable or handheld devices that are used to input, read, and/or log data. They often have barcode and wireless data transmission capability.

Topics of Interest

Overview Exam Objectives What It Really Means 1.1 Describe interrogator functionality Understand the functionalities, capabilities, and features offered by interrogators. You must understand that...

Introduction The items that you need to identify and track are tagged with, well, tags. So, a tag is the better half of the RFID system because it contains information about the item to which it is...

Chapter List Appendix A: Typical Application Profiles Appendix B: Bibliography This table presents common technology choices for various RFID applications. Application Approach Tracking and...

Although RF tags are not identical, they have a common identification field, usually 64-128 bits in length and a unique numerical value (see Table 5). They must have a source of electrical power in...

Introduction An RFID system is based on communication between an interrogator and a tag. The tag is attached to an item that needs to be identified and tracked, and it contains the information about...