Which electrical characteristic is displayed with the correct preferred value?
Which electrical characteristic is displayed with the correct preferred value?A . Dielectric constant C high valueB . Dielectric strength C high valueC . Dissipation factor C low valueD . Insulation resistance - high valueView AnswerAnswer: A
If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is:
If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is:A . 3 dBB . 20 dBC . 30 dBD . 40 dBE . 1000 dBView AnswerAnswer: C
Which of the following is NOT true about consolidation points?
Which of the following is NOT true about consolidation points?A . They are not to be used for direct connections to active equipment.B . They allow horizontal cables to be extended into work area pathways.C . They are to be terminated on separate connectors for each individual user.D . The...
From a 1000 ft (305 m) roll of optical fiber, how many MAXIMUM length centralized optical fiber cabling runs can be made?
From a 1000 ft (305 m) roll of optical fiber, how many MAXIMUM length centralized optical fiber cabling runs can be made?A . 1B . 2C . 3D . 4E . 5View AnswerAnswer: C
What MINIMUM data rate is required for the OC-48 channel?
A SONET OC-1 channel can carry 672 voice signals and has a data rate of 51.84 Mbps. A SONET OC-48 channel can carry 32,256 voice channels. What MINIMUM data rate is required for the OC-48 channel?A . 155 MbpsB . 622 MbpsC . 2.5 GbpsD . 5 GbpsE . 10...
Which of the following is true about screened twisted pair cable assemblies?
Which of the following is true about screened twisted pair cable assemblies?A . The drain wire and screen foil must be bonded at one end only.B . The drain wire and screen foil must be bonded at every connection.C . There is no need to bond the screen foil or...
A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is__________, where c is the velocity of light in free space.
A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is__________, where c is the velocity of light in free space.A . 0.2 cB . 0.4 cC . 0.6 cD . 08 cE . 0.9 cView AnswerAnswer: C
The MINIMUM separation distance between grounded metal telecommunications pathway and unshielded power lines is:
The MINIMUM separation distance between grounded metal telecommunications pathway and unshielded power lines is:A . 75 mm (3 in)B . 150 mm (6 in)C . 300 mm (12 in)D . 610 mm (24 in)E . 1220 mm (48 in)View AnswerAnswer: C
One advantage of using preconnectorized jumpers and cables is:
One advantage of using preconnectorized jumpers and cables is:A . They are less costly than field connectorized connectorsB . The cables are more rugged and can handle higher pull tensionsC . They come with factory certified quality of terminationsD . They require additional engineering time thereby providing a higher degree...
In reviewing your client's network needs for today and 5 years into the future, you note their current specs call for a 1Gb/s network within a campus environment, with little or no possibility of any increased bandwidth demands until they move to their planned future site. The building is not large, and the cable lengths will not exceed 550 m (1804 ft).
In reviewing your client's network needs for today and 5 years into the future, you note their current specs call for a 1Gb/s network within a campus environment, with little or no possibility of any increased bandwidth demands until they move to their planned future site. The building is not...