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20 Cards in this Set
- Front
- Back
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_____________ tags are read-only.
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class 0
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1-bit tags _____________.
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do not carry information
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One of the main characteristics of sensory tags is ___________________.
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they can capture information about environment conditions
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What is the purpose of an interrogator?
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to read information from the tags
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RFID middleware is used to ___________________.
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convert the data read from the tags into format that is compatible with that of the business application
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Reader antennas are designed for the specific application. True or False?
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True
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The orientation of the tag's antenna usually does not affect readability. True or False?
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True
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RFID is not expected to have a major impact on network traffic? True or False?
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False
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UHF passive tags use a variation of amplitude and phase modulation. True or False?
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False, they use a variation of amplitude shift keying and phase shift keying.
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A reader uses a method called coupling to connect with the corporate network. True or False?
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False
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To power passive tags the reader transmits _______________.
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continuous wave or CW
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To modulate a response signal using backscatter a tag has to _________________.
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Change the electrical properties or reflection coefficient of its antenna.
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Interrogators and tags ____________ simultaneously. This is known as ____________ communications.
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do not transmit; half-duplex
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The minimum amount of information stored in a smart label is _________________.
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the EPC, CRC, and the destroy password.
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In a ________________ an interrogator will assume that there was a collision when ______________.
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dense reader environment; it does not receive responses from any tags.
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Which transmission techniques are included in the EPCglobal standards?
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Basic ASK/PSK modulation, FHSS, DSSS.
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List three specific challenges associated with RFID system implementation.
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Increased network traffic, increased storage requirements, network availability, security.
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Which methods can be used to temporarily or permanently disable a tag?
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Physical destruction, the kill command, locking, blocker tags.
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Explain the mechanism for handling tag collisions in HF.
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STAC protocol.
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List several potential application for RFID that were not discussed in the chapter's text.
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people location within a building, parking lot access cards, laboratory experiment tracking, timber grade monitoring, permanent identification of valuable items such as art, security guard monitoring (rounds monitoring), etc.
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