Multiple Choice
Identify the choice that best
completes the statement or answers the question.
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1.
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What is a "certified" UTP cable?
A. | Cable tested to EIA/TIA 568 specifications | B. | Cable tested by an
automated tester | C. | Cable tested to both Cat 3 and Cat 5 specifications | D. | Cable tested to
"enhanced Cat 5” or “augmented Cat 6”
specifications |
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2.
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Every UTP link must be first tested for correct connections or
"wiremap." What else must be tested?
A. | Attenuation and crosstalk | B. | Attenuation and ACR | C. | Length, attenuation
and crosstalk | D. | Length and ACR |
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3.
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What instrument measures the length of a cable?
A. | Network analyzer | B. | Wiremapper | C. | Time domain
reflectometer (TDR) | D. | All of the
above |
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4.
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Why is "Powersum NEXT" important in new cable plants?
A. | Higher speed networks need less crosstalk | B. | New networks will
have signals on all the pairs in the cable | C. | Cat 5e and Cat 6 cable are more sensitive to
crosstalk | D. | It's a marketing issue, not a technical issue |
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5.
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What is included in a channel test that is not included in a permanent link
test?
A. | Patchcords on either end of the link | B. | Extra attenuation from the connections at the
ends | C. | Longer cable lengths | D. | Performance of the networking
equipment |
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6.
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In testing wiremaps, what fault is sometimes missed by inexpensive
wiremappers?
A. | Crossed pairs | B. | Reversed pairs | C. | Split
pairs | D. | Delay skew |
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7.
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What is the most likely cause of crossed pairs?
A. | Misreading color codes on a Cat 3 jack | B. | Terminating one end as T568A and the other as
T568B | C. | Using a Cat 3 jack on one end and a Cat 5e/6 jack on the other | D. | Termination of the
jack using the BLOGBr color code sequence |
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8.
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Impedance mismatches in cables cause problems with__________.
A. | Attenuation | B. | Return loss | C. | Crosstalk | D. | All of the
above |
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9.
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For certifying Cat 5e performance, installed cables are tested at frequencies up
to __________.
A. | 100 Mb/s | B. | 16, 20 and 100 MB/s | C. | 100
MHz | D. | 250 MHz |
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10.
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Voice grade unshielded twisted pair cables (UTP) which are only intended to
carry POTS (plain old telephone service) only need testing for_____.
A. | Shorts and opens | B. | Wiremap | C. | Crossed
pairs | D. | Crosstalk |
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11.
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Below is the color code for
_________________. (Colors from left: 1-8: Blue stripe, Blue, Orange Stripe, Orange, Green Stripe,
Green, Brown Stripe, Brown)  A. | TIA 568A | B. | TIA 568B | C. | Punchdown
blocks |
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12.
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Testers which “verify” cable performance test cabling by
________.
A. | Sweeping frequencies | B. | Running network data and bit error rate
tests on the cabling | C. | Testing at 500 MHz | D. | Time domain
refractometry |
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13.
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Of the three copper testers, (wiremappers, certification and
the new validation testers), which actually tests the cable for real networks like
Ethernet?
A. | Wiremapper | B. | Certification
tester | C. | Validation tester | D. | None of them |
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