please answer all Question and unique answer .... 2- Most applications include m
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Question
please answer all Question and unique answer ....
2- Most applications include metadata in the document properties. Define the metadata. Do you think it is important to remove metadata before distributing a document? Justify your answer.
3- List all of the fire accident classification classes. Find at least three different fire extinguishers (do not touch them) and document their location. What fire accident classification class they can be used for? Write down the travel distance of each of them based on their classification classes
4- The e-mail server should be set up so that it does not allow an open relay of SMTP traffic. Failure to do so implies issues. What are those issues? Describe them using your own words.
Explanation / Answer
2. Metadata summarizes basic information about data , which can make finding and working with particular instances of data easier.In short Metadata is "Data about data".
Yes, it is important to remove metadata before distributing a document because it contains valuable and confidential information which is not always appropriate for distribution to people outside of the working group.To maintain security , metadata should be removed.
3. There are five classes of fire accidents :
a) Class A : They are ordinary combustibles.They use commonly flammable mterial as their fuel source.Common sources are wood , fabric , paper and plastics.
b) Class B : They uses flammable liquid or gas as its fuel base.Common sources are oils and paints,kerosene and gasoline.
c) Class C : They uses electrical components and energized eqipments as fuel source.They are common in industries that deal with energy or make use of heavy electrically powered equipment.
d) Class D : They uses combustible metal as its fuel source.For example titanium , magnesium , aluminium and potassium.
e) Class K : This is defined as cooking fire involving combustion from liquids used in food preparation.
Types of Fire Extinguisher :
a) Water and Foam : They extinguish fire by taking away heat element of the fire triangle. Foam agents also separate the oxygen element from other elements. They are used on Class A fires.
B) Carbon Dioxide : They extinguish fire by taking away the oxygen of the fire triangle and also by removing heat with a very cold discharge. They are used on clss B fires.
C) Wet Chemical : They extinguish fire by removing heat of the fire triangle and prevents re-ignition by creating a barrier between oxygen and fuel elements.They are used on Class K fires.
4)The email server faces issues like :
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