A fiber which is referred as non-dispersive shifted fiber is a. Coaxial cables b. Standard single...
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A fiber which is referred as non-dispersive shifted fiber
is
a. Coaxial cables
b. Standard single...
The fibers mostly not used nowadays for optical fiber communication system are a. Single mode fibers...
The fibers mostly not used nowadays for optical fiber communication system are a. Single mode fibers b. Multimode step fibers c. Coaxial cables d. Multimode graded index fibers
Need some help with a Networking exam with a particular focus on cables, wiring and infrastructure...
Need some help with a Networking exam with a particular focus on cables, wiring and infrastructure ...thanks! Part a: Which of the following are the smallest size fiber optic connectors that are used on the latest fiber-optic technology? (Please select one of the four options) SC and ST SC and FC LC and MT-RJ ST and LC Part b: Which of the following is true about multimode fiber-optic network cabling? (Please choose from one of the four options) The sheathing...
1. A fiber that supports many optical wavegui modes 2. Ration of the speed of light...
1. A fiber that supports many optical wavegui modes 2. Ration of the speed of light in free space to its speed in a given material 3. Light extending from 680 nm up to the wavelenghts of the microwaves 3 Matching questions A. Stretching of received pulse width because of multiple paths taken by the light Graded-index Fiber 2Single-Mode Fiber B. Fiber cables with core diameters of about 7-10 um light follows a single path 3. Pulse Dispersion C. the...
8. A 1550 nm optical link uses a standard single-mode fiber with dispersion parameter of 4 ps/nm/km (Chromatic Dispersion), and a laser source with a linewidth of 0.5 nm. Assuming the link carrier is...
8. A 1550 nm optical link uses a standard single-mode fiber with dispersion parameter of 4 ps/nm/km (Chromatic Dispersion), and a laser source with a linewidth of 0.5 nm. Assuming the link carrier is a 10 Gbits/s binary signal, estimate the maximum length of optical fiber required before dispersion compensation is required. (Assume the maximum spread is half the time interval between each bit).
41. Which of the following types of communications cabling has the longest usable transmission distance? A....
41. Which of the following types of communications cabling has the longest usable transmission distance? A. Single-mode optical fiber B. Multimode optical fiber C. Category 6A D. Category 6 42. What's the operating frequency of a Category 5 cable that's 1,500 feet long at ACR = 0? A. 4.5 MHz B. 10 MHz C. 20 MHz D. 200 MHz 43. All of the following statements are correct except: A. Plenum cables don't produce toxic gases when they burn. B. A...
Question 1 Select the correct statement(s) regarding fiber optic cable. a. The core and cladding within...
Question 1 Select the correct statement(s) regarding fiber optic cable. a. The core and cladding within a fiber optic cable must have the same refractive index in order to achieve TIR (Total Internal Reflection) b. Only single mode fiber (SMF) can be constructed with either a “step” or “graded index” core c. Mulimode optical fibers (MMF) are vulnerable to modal dispersion d. All statements are correct Question 2 Using a direct sequence spread spectrum (DSSS) technique spreads a narrow band channel...
10) When a muscle fiber enters fatigue, which metabolite below typically does NOT significantly change in...
10) When a muscle fiber enters fatigue, which metabolite below typically does NOT significantly change in concentration? A) ATP B) P G Ca2+ D) Lactic acid E) K* 11) Which is the most accurate definition of a motor unit? A) The mimimum number of muscle fibers required to move a load B) The number of crossbridges formed in a given length of muscle fiber C) The number of muscles innervated by a single nerve D) One motor neuron and all...
Check all that apply: Which nerve fiber releases neurotransmitters that bind to nicotinic receptors? a) Postganglionic...
Check all that apply: Which nerve fiber releases neurotransmitters that bind to nicotinic receptors? a) Postganglionic sympathetic nerve fibers b) Preganglionic sympathetic nerve fibers c) Postganglionic parasympathetic nerve fibers d) Preganglionic parasympathetic nerve fibers
160. Which type of muscle fiber is highly resistant to fatigue and injury? A. O Type...
160. Which type of muscle fiber is highly resistant to fatigue and injury? A. O Type 1 B. Fast twitch C "Couch potato" fibers D. Type 11
1. Answer the following quick Cell Biology questions. (a.)DNA replication is ___________________. a. conservative. b. dispersive...
1. Answer the following quick Cell Biology questions. (a.)DNA replication is ___________________. a. conservative. b. dispersive c. semiconservative. d. irregular. e. none of the above (b.) Which of the following proteins is observed exclusively in association with eukaryotic DNA replication? a. DNA polymerase I b. DNA gyrase c. single-strand binding proteins d. DNA ligase e. telomerase (c.) Which of the following events is characteristic of DNA replication in prokaryotes but not in eukaryotes (nuclear DNA)? a. DNA synthesis 5'...
1. A fiber that supports many optical wavegui modes 2. Ration of the speed of light in free space to its speed in a given material 3. Light extending from 680 nm up to the wavelenghts of the microwaves 3 Matching questions A. Stretching of received pulse width because of multiple paths taken by the light Graded-index Fiber 2Single-Mode Fiber B. Fiber cables with core diameters of about 7-10 um light follows a single path 3. Pulse Dispersion C. the...
10) When a muscle fiber enters fatigue, which metabolite below typically does NOT significantly change in concentration? A) ATP B) P G Ca2+ D) Lactic acid E) K* 11) Which is the most accurate definition of a motor unit? A) The mimimum number of muscle fibers required to move a load B) The number of crossbridges formed in a given length of muscle fiber C) The number of muscles innervated by a single nerve D) One motor neuron and all...
Check all that apply: Which nerve fiber releases neurotransmitters that bind to nicotinic receptors? a) Postganglionic sympathetic nerve fibers b) Preganglionic sympathetic nerve fibers c) Postganglionic parasympathetic nerve fibers d) Preganglionic parasympathetic nerve fibers
160. Which type of muscle fiber is highly resistant to fatigue and injury? A. O Type 1 B. Fast twitch C "Couch potato" fibers D. Type 11
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