Quiz : Can Cabling Standards Keep Up With Technology?
Without standards, communications networks could never work because there would be no interoperability, but standards are developed in a process that sometimes seems slower than electronic technology is evolving. Have cabling standards been keeping up with technology?
Created By : Jim Hayes
Premises cabling standards under the TIA 658 banner are based on an AT&T survey of _________ users from _________ (year).
1) A. Private branch exchange (PBX), 1982
2) B. Digital telephone system, 1991
3) C. Ethernet local area networks (LANs), 1995
4) D. Voice over Internet protocol (VOIP), 2004
Your Answer : D. Voice over Internet protocol (VOIP), 2004
Correct Answer : A. Private branch exchange (PBX), 1982
Answer is : Incorrect.
In the AT&T survey, what percentage of users’ networks were less than 300 feet (about 100 meters) from the wiring closet to the desktop?
1) A. 50
2) B. 90
3) C. 99
4) D. 99.9
Your Answer : D. 99.9
Correct Answer : D. 99.9
Answer is : Correct.
Cabling standards are generally developed _________ the communications network standards they are designed to support.
1) A. Before
2) B. Simultaneously with
3) C. After
Your Answer : C. After
Correct Answer : B. Simultaneously with
Answer is : Incorrect.
Which of the following network types are not covered specifically in the current TIA 568 standard?
1) A. Fiber to the office (FTTO)
2) B. Passive optical LANs (POLs)
3) C. Wireless
4) D. All of the above
Your Answer : D. All of the above
Correct Answer : D. All of the above
Answer is : Correct.
Fiber optics was first used in premises networks about _________.
1) A. 10 years before TIA 568 standards were developed
2) B. About the same time TIA 568 standards were developed
3) C. 10 years after TIA 568 standards were developed
Your Answer : C. 10 years after TIA 568 standards were developed
Correct Answer : A. 10 years before TIA 568 standards were developed
Answer is : Incorrect.
How many generations of unshielded twisted-pair (UTP) cable have been standardized during the lifetime of the TIA 568 standard?
1) A. One
2) B. Three
3) C. Six
4) D. 10
Your Answer : D. 10
Correct Answer : C. Six
Answer is : Incorrect.
The next TIA standardized UTP cable aimed at speeds greater than 10 gigabits per second (Gbps) will be called _________.
1) A. Cat 6e
2) B. Cat 7
3) C. Cat 7a
4) D. Cat 8
Your Answer : D. Cat 8
Correct Answer : D. Cat 8
Answer is : Correct.
The multimode optical fibers used since 1980, 62.5/125 micron and 50/125 micron, are still being used today, while nine types of copper cables have been used in LAN cabling in the same time frame.
1) True
2) False
Your Answer : False
Correct Answer : True
Answer is : Incorrect.
When UTP cabling was not developed fast enough for 10-gigabit networks, a _________ cable was adopted.
1) A. Shielded
2) B. Coaxial
3) C. Ribbon
4) D. Twinaxial
Your Answer : D. Twinaxial
Correct Answer : B. Coaxial
Answer is : Incorrect.
When 100 Gbps Ethernet was developed, two solutions were offered. The multimode fiber solution was more difficult and required _________, while single-mode fiber uses wavelength division multiplexing (WDM) over two single-mode fibers.
1) A. 10 parallel links over 20 multimode fibers
2) 10 parallel links over 10 multimode fibers
3) C. WDM over two multimode fibers
4) D. Two multimode fibers
Your Answer : D. Two multimode fibers
Correct Answer : A. 10 parallel links over 20 multimode fibers
Answer is : Incorrect.
Total Questions in Quiz : 10, 30% Correct
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