Signal Theory in Telecommunication Network

What is the definition of Signal Theory?

• Keeping track of Fibre cable scraps and dispose of them properly

• Standard operation on how to install Fibre Optic cables

• Understanding of how a computer transmits signals to one another

• Using an optical tracer or continuity checker

Answer explanation

Digital signals are signals that are transmitted by a computer.

These signals use binary codes of 1’s and 0’s which is equal to 13 in decimal number system.

 

What is Binary in computers?

• A system where numbers and values are expressed as 0's and 1's

• A Mixture of Genders

• Computer Networks

• Plastic optical fiber (POF)

What type of Fibre optic transmission mode is in the image

• Multi-Sign

• Multi-Mode

• Single-Mode

• Polymer Fiber

What is meant by Amplitude digital method?

• Optical signals and radio frequency (RF) signals that are related

• The amount of waves in the wavelength showing the consistency of the signal

• Purely voice over internet

• The higher the wave the stronger the signal

Answer explanation

Amplitude is the height of the wave, which connotes to the strength of the signal.

For example, the higher the wave the stronger the signal. The frequency is the amount of waves in the wavelength showing the consistency of the signal

In telecommunications and computer networking, a network ???? is a formatted unit of data carried by a .................-switched network.

Answer explanation

In telecommunications and computer networking, a network packet is a formatted unit of data carried by a packet-switched network.

What structure does a data packet minimally contain?

• 1. Source address

  2. Destination address

  3. Data

  4. Error control

• Destination address

• 1. Destination address

  2. Data

  3. Source address

  4. Error control

• Header and Footer

Multimode Fibre optic signalling is measured in what classes?

• OM1, OM2, OM3, OM4 and OM5 

• Mega bits

• OS1 and OS2 classes

• Gigabits her hour

Answer explanation

Various categories and optical classes have been defined for fiber optic cables to classify performance and maximum bandwidth.

Classes OS1 and OS2 exist for singlemode optical fibers

and

classes OM1, OM2, OM3, OM4 and OM5 for multimode optical fibers.

Convert the following Binary to denary 0 0 0 0 1 1 0 1?

• 10

• 28

• 8

• 13

Answer explanation

0 0 0 0 1 1 0 1

8 4 1

8+4+1 = 13

Which is the larger / Faster bandwidth to use?

• Mega bits per second (mbps)

• Bits per second (bps)

• Kilo bits per second (kbps)

• Giga bits per second (gbps)

Answer explanation

Which is bigger TB or PB?

* 1 Bit: Has only one of two values either a 0 or 1. 

* 1 Byte: One of the smallest units of memory in computer technology. One byte consists of 8 bits.

* 1 Kilobyte: Another measurement unit of digital information. There are a thousand bytes in one kilobyte.

* 1 Megabyte: Mostly used for indicating the size of average MP3 songs or JPEG images. One megabyte equals one thousand kilobytes.

* 1 Gigabyte: Commonly used for indicating the size of a movie. One gigabyte consists of one thousand megabytes.

* 1 Terabyte: Mostly used for measuring the storage capacity of hard drives. One terabyte is equivalent to one thousand gigabytes.

* 1 Petabyte: Commonly used for measuring the total data stored in server farms. One petabyte consists of one thousand terabytes.