Adding bits to synchronize one digital signal to another is called: a. bit stuffing b. bit-synch c. SDH d. WDM

Adding bits to synchronize one digital signal to another is called:
a. bit stuffing b. bit-synch c. SDH d. WDM
by

1 Answer

Answer :

a. bit stuffing
by

Related questions

SONET does not use bit ____________________ to synchronize two digital signals.

Description : SONET does not use bit ____________________ to synchronize two digital signals.

Last Answer : stuffing

SDH stands for Synchronous Data ____________________.

Description : SDH stands for Synchronous Data ____________________.

Last Answer : Hierarchy

WDM stands for ____________________-division multiplexing.

Description : WDM stands for ____________________-division multiplexing.

Last Answer : Wavelength

. The product of the bit rate and distance of a fiber-optic system is 2 Gbits-km/s. What is the maximum rate at 5 km? ∙ A. 100 Mbits/s ∙ B. 200 Mbits/s ∙ C. 400 Mbits/s ∙ D. 1000 Gbits/s

Description : . The product of the bit rate and distance of a fiber-optic system is 2 Gbits-km/s. What is the maximum rate at 5 km? ∙ A. 100 Mbits/s ∙ B. 200 Mbits/s ∙ C. 400 Mbits/s ∙ D. 1000 Gbits/s

Last Answer : C. 400 Mbits/s

The product of the bit rate and distance of a fiber-optic system is 2 Gbits km/s. What is the maximum rate at 5 km? ∙ a. 100 Mbits/s ∙ b. 200 Mbits/s ∙ c. 400 Mbits/s ∙ d. 1000 Gbits/s

Description : The product of the bit rate and distance of a fiber-optic system is 2 Gbits km/s. What is the maximum rate at 5 km? ∙ a. 100 Mbits/s ∙ b. 200 Mbits/s ∙ c. 400 Mbits/s ∙ d. 1000 Gbits/s

Last Answer : c. 400 Mbits/s

The loss in signal power as light travels down a fiber is called ∙ a. Dispersion ∙ b. Scattering ∙ c. Absorption ∙ d. Attenuation

Description : The loss in signal power as light travels down a fiber is called ∙ a. Dispersion ∙ b. Scattering ∙ c. Absorption ∙ d. Attenuation

Last Answer : ∙ d. Attenuation

SONET frames have considerably more ____________________ than do DS frames for information about signal routing and setup.

Description : SONET frames have considerably more ____________________ than do DS frames for information about signal routing and setup.

Last Answer : overhead

The minimum optical power a light detector can receive and still produce a usable electrical output signal. ∙ A. light responsivity ∙ B. light sensitivity ∙ C. light collectivity ∙ D. illumination

Description : The minimum optical power a light detector can receive and still produce a usable electrical output signal. ∙ A. light responsivity ∙ B. light sensitivity ∙ C. light collectivity ∙ D. illumination

Last Answer : B. light sensitivity

The term responsivity as it applies to a light detector is best described as ∙ A. the time required for the signal to go from 10 to 90 percent of maximum amplitude ∙ B. the ratio of the diode output current to the input optical power ∙ C. the ratio of the input power to output power ∙ D. the ratio of output current to input current

Description : The term responsivity as it applies to a light detector is best described as ∙ A. the time required for the signal to go from 10 to 90 percent of maximum amplitude ∙ B. the ratio of the diode ... . the ratio of the input power to output power ∙ D. the ratio of output current to input current

Last Answer : the ratio of the diode output current to the input optical power

It indicates what signal frequencies can be propagated through a given distance of fiber cable. ∙ A. Bandwidth Distance Product ∙ B. Pulse width dispersion ∙ C. Rise time ∙ D. Cutoff frequency

Description : It indicates what signal frequencies can be propagated through a given distance of fiber cable. ∙ A. Bandwidth Distance Product ∙ B. Pulse width dispersion ∙ C. Rise time ∙ D. Cutoff frequency

Last Answer : A. Bandwidth Distance Product

An increase in light intensity produces fast optic switching due to ∙ a. Increase in index of glass ∙ b. Amplification of optical signal ∙ c. High gain ∙ d. Photoconductivity

Description : An increase in light intensity produces fast optic switching due to ∙ a. Increase in index of glass ∙ b. Amplification of optical signal ∙ c. High gain ∙ d. Photoconductivity

Last Answer : b. Amplification of optical signal

A function of an optic isolator ∙ a. Cancels reflective waves ∙ b. Amplifies signal transmitted ∙ c. Filters unnecessary signals ∙ d. All of these

Description : A function of an optic isolator ∙ a. Cancels reflective waves ∙ b. Amplifies signal transmitted ∙ c. Filters unnecessary signals ∙ d. All of these

Last Answer : a. Cancels reflective waves

Why are visible-light LEDs not used for fiber optics? ∙ a. It has high losses ∙ b. It has short wave ∙ c. It has low attenuation ∙ d. It has weak signal

Description : Why are visible-light LEDs not used for fiber optics? ∙ a. It has high losses ∙ b. It has short wave ∙ c. It has low attenuation ∙ d. It has weak signal

Last Answer : ∙ a. It has high losses

Band loss is ∙ a. A reduction in transmitter power caused by earth’s surface curvature ∙ b. A reduction in strength of the signal caused by folded dipole bends ∙ c. An attenuation increase caused by bends radiating from the side of the fiber ∙ d. All of these

Description : Band loss is ∙ a. A reduction in transmitter power caused by earth’s surface curvature ∙ b. A reduction in strength of the signal caused by folded dipole bends ∙ c. An attenuation increase caused by bends radiating from the side of the fiber ∙ d. All of these

Last Answer : c. An attenuation increase caused by bends radiating from the side of the fiber

In SONET, STS stands for: a. Synchronous Transport Signal b. Synchronous Transport System c. Synchronous Transmission Signal d. Synchronous Transmission System

Description : In SONET, STS stands for: a. Synchronous Transport Signal b. Synchronous Transport System c. Synchronous Transmission Signal d. Synchronous Transmission System

Last Answer : a. Synchronous Transport Signal

What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Description : What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Last Answer : Coho lock pulse.

DWDM stands for: a. Digital Wavelength-Division Modulation b. Dense Wavelength-Division Modulation c. Double Wavelength-Division Modulation d. Dense Wavelength-Division Multiplexing

Description : DWDM stands for: a. Digital Wavelength-Division Modulation b. Dense Wavelength-Division Modulation c. Double Wavelength-Division Modulation d. Dense Wavelength-Division Multiplexing

Last Answer : d. Dense Wavelength-Division Multiplexing

FDDI stands for: a. Fiber Digital Data Interface b. Fiber Distributed Data Interface c. Fiber Distribution Delay Interface d. Frequency-Division Data Interface

Description : FDDI stands for: a. Fiber Digital Data Interface b. Fiber Distributed Data Interface c. Fiber Distribution Delay Interface d. Frequency-Division Data Interface

Last Answer : b. Fiber Distributed Data Interface

The ______ technique expands the bandwidthof a signal by replacing each data bit with n bits. A) FDM B) DSSS C) FHSS D) TDM

Description : The ______ technique expands the bandwidthof a signal by replacing each data bit with n bits. A) FDM B) DSSS C) FHSS D) TDM

Last Answer : DSSS

Suppose that the one-way propagation delay for a 100 Mbps Ethernet having 48-bit jamming signal is 1.04 micro-seconds. The minimum frame size in bits is: a. 112 b. 160 c. 208 d. 256

Description : Suppose that the one-way propagation delay for a 100 Mbps Ethernet having 48-bit jamming signal is 1.04 micro-seconds. The minimum frame size in bits is: a. 112 b. 160 c. 208 d. 256

Last Answer : d. 256

The system is notified of a read or write operation by ___________ a) Appending an extra bit of the address b) Enabling the read or write bits of the devices c) Raising an appropriate interrupt signal d) Sending a special signal along the BUS

Description : The system is notified of a read or write operation by ___________ a) Appending an extra bit of the address b) Enabling the read or write bits of the devices c) Raising an appropriate interrupt signal d) Sending a special signal along the BUS

Last Answer : Sending a special signal along the BUS

The baud rate of a signal is 600 baud/second. If each signal unit carries 6 bits, then the bit rate of a signal is ................. (A) 3600 (B) 100 (C) 6/600 (D) None of the above

Description : The baud rate of a signal is 600 baud/second. If each signal unit carries 6 bits, then the bit rate of a signal is ................. (A) 3600 (B) 100 (C) 6/600 (D) None of the above

Last Answer : (A) 3600 

An analog signal carries 4 bits in each signal unit. If 1000 signal units are sent per second, then baud rate and bit rate of the signal are ............... and .............. (A) 4000 bauds \ sec & 1000 bps (B) 2000 bauds \ sec & 1000 bps (C) 1000 bauds \ sec & 500 bps (D) 1000 bauds \ sec & 4000 bps

Description : An analog signal carries 4 bits in each signal unit. If 1000 signal units are sent per second, then baud rate and bit rate of the signal are ............... and .............. (A) 4000 bauds \ sec & ... (B) 2000 bauds \ sec & 1000 bps (C) 1000 bauds \ sec & 500 bps (D) 1000 bauds \ sec & 4000 bps

Last Answer : (D) 1000 bauds \ sec & 4000 bps Explanation: Bit rate is the number of bits per second. Baud rate is the number of signal units per second. Baud rate is less than or equal to the bit rate. Baud rate = 1000 bauds per second (baud/s) Bit rate = 1000 x 4 = 4000 bps

An analog signal has a bit rate of 6000 bps and a baud rate of 2000 baud. How many data elements are carried by each signal element ? (A) 0.336 bits/baud (B) 3 bits/baud (C) 120,00,000 bits/baud (D) None of the above

Description : An analog signal has a bit rate of 6000 bps and a baud rate of 2000 baud. How many data elements are carried by each signal element ? (A) 0.336 bits/baud (B) 3 bits/baud (C) 120,00,000 bits/baud (D) None of the above

Last Answer : (B) 3 bits/baud

Suppose a digitized voice channel is made by digitizing 8 kHz bandwidth analog voice signal. It is required to sample the signal at twice the highest frequency (two samples per hertz). What is the bit rate required, if it is assumed that each sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps

Description : Suppose a digitized voice channel is made by digitizing 8 kHz bandwidth analog voice signal. It is required to sample the signal at twice the highest frequency (two samples per hertz). What is the bit rate required, if it ... sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps

Last Answer : (C) 128 kbps

_____ isa digital multiplexing technique for combiningseveral low-ratechannels into onehigh-rate one. A) FDM B) TDM C) WDM D) None of the above

Description : _____ isa digital multiplexing technique for combiningseveral low-ratechannels into onehigh-rate one. A) FDM B) TDM C) WDM D) None of the above

Last Answer : TDM

Which multiplexing technique transmits digital signals? A) FDM B) TDM C) WDM D) None of the above

Description : Which multiplexing technique transmits digital signals? A) FDM B) TDM C) WDM D) None of the above

Last Answer : TDM

The process of moving from one energy level to another is called ____________. ∙ A. Spontaneous emission ∙ B. Excited emission ∙ C. Absorption ∙ D. Spontaneous decay

Description : The process of moving from one energy level to another is called ____________. ∙ A. Spontaneous emission ∙ B. Excited emission ∙ C. Absorption ∙ D. Spontaneous decay

Last Answer : C. Absorption

The process of decaying from one energy level to another energy level is called __________. ∙ A. Spontaneous emission ∙ B. Excited emission ∙ C. Absorption ∙ D. Any of these

Description : The process of decaying from one energy level to another energy level is called __________. ∙ A. Spontaneous emission ∙ B. Excited emission ∙ C. Absorption ∙ D. Any of these

Last Answer : A. Spontaneous emission

The ratio of the speed of light in air to the speed of light in another substance is called ∙ A. speed factor ∙ B. index of reflection ∙ C. index of refraction ∙ D. speed gain

Description : The ratio of the speed of light in air to the speed of light in another substance is called ∙ A. speed factor ∙ B. index of reflection ∙ C. index of refraction ∙ D. speed gain

Last Answer : ∙ B. index of reflection

The ratio of speed of light in air to the speed of light in another substance is called the ∙ a. Speed factor ∙ b. Index of reflection ∙ c. Index of refraction ∙ d. Dielectric constant

Description : The ratio of speed of light in air to the speed of light in another substance is called the ∙ a. Speed factor ∙ b. Index of reflection ∙ c. Index of refraction ∙ d. Dielectric constant

Last Answer : b. Index of reflection

What do you call a short bit sequence sent typically 128 bits in digital signatures? A. Hash B. Public key C. Private key D. Password

Description : What do you call a short bit sequence sent typically 128 bits in digital signatures? A. Hash B. Public key C. Private key D. Password

Last Answer : A. Hash

The term critical angle describes ∙ A. the point at which light is refracted ∙ B. the point at which light becomes invisible ∙ C. the point at which light has gone from the refractive mode to the reflective mode ∙ D. the point at which light has crossed the boundary layers from one index to another

Description : The term critical angle describes ∙ A. the point at which light is refracted ∙ B. the point at which light becomes invisible ∙ C. the point at which light has gone from the refractive mode ... reflective mode ∙ D. the point at which light has crossed the boundary layers from one index to another

Last Answer : C. the point at which light has gone from the refractive mode to the reflective mode ∙

Dispersion is used to describe the ∙ a. Splitting of white light into its component colors ∙ b. Propagation of light in straight lines ∙ c. Bending of a beam of light when it goes from one medium to another ∙ d. Bending of a beam light when it strikes a mirror

Description : Dispersion is used to describe the ∙ a. Splitting of white light into its component colors ∙ b. Propagation of light in straight lines ∙ c. Bending of a beam of light when it goes from one medium to another ∙ d. Bending of a beam light when it strikes a mirror

Last Answer : a. Splitting of white light into its component colors

When a beam of light enters one medium from another, which quantity will not change? ∙ a. Direction ∙ b. Speed ∙ c. Frequency ∙ d. Wavelength

Description : When a beam of light enters one medium from another, which quantity will not change? ∙ a. Direction ∙ b. Speed ∙ c. Frequency ∙ d. Wavelength

Last Answer : c. Frequency

Voltage signal generated by a microphone is A. digital in nature B. analogue in nature C. consists of bits and bytes D. hybrid in nature

Description : Voltage signal generated by a microphone is A. digital in nature B. analogue in nature C. consists of bits and bytes D. hybrid in nature

Last Answer : analogue in nature

Bits can be sent over guided and unguided media as analog signal by ___________ a. digital modulation b. amplitude modulation c. frequency modulation d. phase modulation

Description : Bits can be sent over guided and unguided media as analog signal by ___________ a. digital modulation b. amplitude modulation c. frequency modulation d. phase modulation

Last Answer : a. digital modulation

Error detection ata data link level is achieved by A. bit stuffing B. cyclic redundancy codes C. Hamming codes D. equalization

Description : Error detection ata data link level is achieved by A. bit stuffing B. cyclic redundancy codes C. Hamming codes D. equalization

Last Answer : cyclic redundancy codes

Bit stuffing refers to a. inserting a 0 in user stream to differentiate it with a flagb. inserting a 0 in flag stream to avoid ambiguity c. appending a nipple to the flag sequence d. appending a nipple to the use data stream

Description : Bit stuffing refers to a. inserting a 0 in user stream to differentiate it with a flag b. inserting a 0 in flag stream to avoid ambiguity c. appending a nipple to the flag sequence d. appending a nipple to the use data stream

Last Answer : a. inserting a 0 in user stream to differentiate it with a flag

A bit-stuffing based framing protocol uses an 8-bit delimiter pattern of 01111110. If the output bit-string after stuffing is 01111100101, then the input bit-string is a. 0111110100 b. 0111110101 c. 0111111101 d. 0111111111

Description : A bit-stuffing based framing protocol uses an 8-bit delimiter pattern of 01111110. If the output bit-string after stuffing is 01111100101, then the input bit-string is a. 0111110100 b. 0111110101 c. 0111111101 d. 0111111111

Last Answer : b. 0111110101

SDH hasdefined ahierarchy of signals called ________. A) STSs B) STMs C) either (a) or (b) D) neither (a) nor (b)

Description : SDH hasdefined ahierarchy of signals called ________. A) STSs B) STMs C) either (a) or (b) D) neither (a) nor (b)

Last Answer : STSs

______ isa standard developed by ITU-T. A) SONET B) SDH C) either (a) or (b) D) neither (a) nor (b)

Description : ______ isa standard developed by ITU-T. A) SONET B) SDH C) either (a) or (b) D) neither (a) nor (b)

Last Answer : either (a) or (b)

isa standard developed by ANSI for fiber-opticnetworks. A) SONET B) SDH C) either (a) or (b) D) neither (a) nor (b)

Description : isa standard developed by ANSI for fiber-opticnetworks. A) SONET B) SDH C) either (a) or (b) D) neither (a) nor (b)

Last Answer : SDH

How do I synch my calendars?

Description : How do I synch my calendars?

Last Answer : answer:

My Ipod cannot synch.What might be the problem?

Description : My Ipod cannot synch.What might be the problem?

Last Answer : I had a similar problem not long back, have you got all your iPod tunes on your PC already? If so then this worked 1. Throw your iPod across the living room in a bad temper and shout fucking useless piece of ... to stage 3 and just connect it but don't restore it, just sync it !! Best of luck !!

Iphone won't synch movies?

Description : Iphone won't synch movies?

Last Answer : tried to reset the entire library? or reset the iphone?

Does there exist an application that would let me synch my BlackBerry with my laptop and respond to emails and texts through the BlackBerry but using my mouse and keyboard?

Description : Does there exist an application that would let me synch my BlackBerry with my laptop and respond to emails and texts through the BlackBerry but using my mouse and keyboard?

Last Answer : to my knowledge there is not, thats asking way to much from RIM.

Which is the correct spelling: to sync, or to synch?

Description : Which is the correct spelling: to sync, or to synch?

Last Answer : i think it’s Sync, seeing as the apple synchronisation tool is called iSync, but ofcourse, i can’t be sure

How can I synch multiple gadgets?

Description : How can I synch multiple gadgets?

Last Answer : The best way to find out about how to sync multiple gadgets would be to speak with a computer technician or a software analyst or even a computer programmer.