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Explanation

Broadly discuss the measurements of price elasticity of demand.

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Measurement of Price Elasticity of Demand:  There are 5 different measurements of Price Elasticity of Demand. They are as follows: Perfectly Inelastic Demand (Elasticity = 0) Perfectly Elastic Demand (Elasticity = Infinity) Unit Elasticity of Demand (Elasticity = 1) Relatively Inelastic Demand (Elasticity < 1) Relatively Elastic Demand (Elasticity > 1) These measurements has been … Read more

What do you mean by electric flux or flux of the electric field?

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Electric Flux For an arbitrary closed surface, the net outward flow or flux is the product of the average outdrawn normal component of the vector and the area of surface. Electric flux is used to express the relation between  and its source. Flux is denoted by   = (average normal component)×(surface area) The unit of electric flux … Read more

What do you understand by double refraction?

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Double refraction Erasmus Bartholinus discovered in 1669, that, when a ray of light is refracted by a crystal of calcite it gives two refracted rays. This phenomenon is called double refraction. Calcite is crystallized calcium carbonate (CaCO3). It crystallizes in many forms and can be reduced by cleavage or breakage into a rhombohedra.

Define Delivery? Explain various delivery concepts or methods.

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Delivery:  Delivery refers to the way a packet is handled by the underlying network under the control of the network layer. Various delivery concepts are explained below. Connection Types:  Delivery of a packet in the network layer is accomplished by either a connection oriented service or a connection-less service. Connection Oriented Service:  At first a … Read more

What is connecting device? Describe 4 connecting devices.

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Connecting Devices:  Devices that are used to connect other devices are called connecting devices. That is, connecting device is a device that connects. There are 4 types of connecting devices. They are as follows, i. Repeater:  A repeater is a device that receives signals and before it become too weak or corrupted the repeater regenerates … Read more

Describe CSMA/CA or Carrier Sense Multiple Access with Collision Avoidance.

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Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA): This is a wireless network multiple access method defined by IEEE 802.11 standard. CSMA/CA is a modification to CSMA/CD. Collision detection as in CSMA/CD is not applicable for several reason, one reason is Hidden Terminal Problem. To understand this problem, considering that we have three stations 1, … Read more

Describe CSMA/CD or describe the access method of Ether LANs.

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CSMA/CD (Carrier Sense Multiple Access with Collision Detection):  The IEEE 802.3 defines the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) as the standard access method for traditional Ethernet. Stations in a traditional Ethernet can be connected using a physical bus or star topology, but the logical topology is always a bus. It means that … Read more

What is computer threat? Describe 6 computer threats.

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Computer Threats: A threat, in general, is a person or a thing likely to cause damage or danger. In computer security, a computer threat is a possible danger that might exploit vulnerability to breach security and therefore cause possible harm. A computer threat is any activity that can cause damage to private or any data … Read more