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السلام عليكم ورحمة الله وبركاتته
إخواني هذه الأسئلة لم أجد لها حل في الاسئلة المحلوله التي تم طرحها بالمنتدى ياليت حد يحلها لي لاني دورت ومالقيت باقي لي بس كم سؤال والباقي حليتها وشاكر لكم
What is expected when crosstalk is present in networks with higher transmission frequencies? (Choose two.)
jitter
increase in crosstalk
higher signal attenuation
increases in cancellation effect
destruction of more of the data signal
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A company needs to extend the LAN to six separate buildings. To limit the amount of signal attenuation on the LAN media, what type of media would be the best to use between the buildings?
air (wireless)
coaxial cable
fiber
shielded twisted pair
unshielded twisted pair
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What is a cause of crosstalk in UTP cable?
cable pairs that are shorted
cable pairs crossed during termination
cabling runs installed in separate conduit
cable pairs that are untwisted because of poor termination of the cable
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A small company is experiencing difficulties on its LAN. After performing some tests, a technician has determined that the copper media supporting the LAN is experiencing abnormal attenuation. What are two possible causes of the problem? (Choose two.)
defective connectors
excessively long cable lengths
use of higher grade cabling
low frequency signals used in the media
network cable runs isolated from other cables
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Which of the following describes frequency?
length of each wave
height of each wave
number of cycles each second
amount of time between each wave
اربع مشاهدات ولا واحد يعرف يحل؟غريبه
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I am sorry, I am not sure about all questions, so I will answer the answers that am sure of them only:
Q7: Fiber
Q9: Defective connectors, and long cables.
Q10: Frequency is cycles per second
I hope that you'll make use of these answers.
I have CCNA, and I would like to have the CCNP and start studying BSCI, do you have some cisco press book or simulation for that?
Salamoo Alikom BrotherAlfadhli,
Here is the answers for you questions. I'm working in the network operations field for the last 7 years. I'm also a Cisco teacher in a local community college here in USA.I passed my CCNP/CCDP and some other certifications. Let me know if I can do anything else for your. when my time allows.
Q1-Answer:
increase in crosstalk
destruction of more of the data signal
Q2-Answer:
Fiber
Q3-Answer:
cable pairs that are untwisted because of poor termination of the cable
Q4-Answer:
excessively long cable lengths
low frequency signals used in the media
Q5-Answer:
number of cycles each second
Salamoo Alikom,
AbuAbdullah
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