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Two-dimensional bar codes are omni-directional

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Two-dimensional bar codes are omni-directional  [#permalink]

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New post 05 Jun 2015, 02:55
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Question Stats:

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Two-dimensional bar codes are omni-directional; that is, unlike one-dimensional bar codes, they can be scanned from any direction. Additionally, two-dimensional bar codes are smaller and can store more data than their one-dimensional counterparts. Despite such advantages, two-dimensional bar codes account for a much smaller portion of total barcode usage than one-dimensional barcodes.

Which of the following, if true, most helps to resolve the apparent paradox?

(A) Many smaller stores do not use bar codes at all because of the expense.
(B) For some products, the amount of data necessary to be coded is small enough to fit fully on a one-dimensional bar code.
(C) Two-dimensional bar codes are, on average, less expensive than one-dimensional bar codes.
(D) Two-dimensional bar codes can also be scanned by consumer devices, such as cell phones.
(E) One-dimensional bar codes last longer and are less prone to error than two dimensional bar codes.

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Re: Two-dimensional bar codes are omni-directional  [#permalink]

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New post 05 Jun 2015, 03:52
apoorv601 wrote:
Two-dimensional bar codes are omni-directional; that is, unlike one-dimensional
bar codes, they can be scanned from any direction. Additionally, two-dimensional
bar codes are smaller and can store more data than their one-dimensional counterparts.
Despite such advantages, two-dimensional bar codes account for a
much smaller portion of total barcode usage than one-dimensional barcodes.

Which of the following, if true, most helps to resolve the apparent paradox?

(A) Many smaller stores do not use bar codes at all because of the expense.

(B) For some products, the amount of data necessary to be coded is small
enough to fit fully on a one-dimensional bar code.

(C) Two-dimensional bar codes are, on average, less expensive than one-dimensional
bar codes.

(D) Two-dimensional bar codes can also be scanned by consumer devices, such
as cell phones.

(E) One-dimensional bar codes last longer and are less prone to error than twodimensional
bar codes.


We have to find an option that shows the limitations of two imentional bar codes and why one dimensional bar codes are used more often.
A. Many- This keyword eliminates this option.
B. Again some- No good
C. This supports the use of 2 dimensions0 180 degree oppsitr
D. This one is opposite again
E. Correct
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Re: Two-dimensional bar codes are omni-directional  [#permalink]

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New post 24 Nov 2019, 17:53
Bumping for further discussion (an easy one for you guys)!
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Re: Two-dimensional bar codes are omni-directional  [#permalink]

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New post 25 Nov 2019, 12:52
We need to explain the paradox.

The 2D barcodes are cool and have great PROs vs 1D codes. However, 1D codes are prevalent. Why so?

According to PowerScore CR Bible, the correct answer to Explain the Paradox question should address both groups / objects / subjects / situations that are described in the passage. So, we need to look for an option that talks about both 2D and 1D barcodes.

While (A), (C), and (D) are totally irrelevant, (B) is wrong because it talks about "some" products and 1D barcodes. But we do not know anything about 2D barcodes from this choice.

(E) is the best option.
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Re: Two-dimensional bar codes are omni-directional   [#permalink] 25 Nov 2019, 12:52
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