Digital Forensics in Cybersecurity Fundamentals exam questions and answers fully solved

Forensic Photography exam questions and answers fully solved PHOTOGRAPHY - AnswersIt is an art or science, which deals with the reproduction of images through the action of light, upon sensitized materials with the aid of a camera and accessories and the chemical process involved therein. read - AnswersFull Stops f1.4 f/2 f/12.8. f/4. f/5.6. f/8 f11. f16. f/22 ** Following the scale above, if we adjust the aperture 1 full stop from a high f-no. (smaller opening) to a low f-no. (Larger opening), we INCREASE THE AMOUNT OF LIGHT HALF of the previous setting and vice versa, if we adjust the aperture 1 full stop from a low f-no. (larger opening) to a highf-no (small opening), WE REDUCE THE AMOUNT OF LIGHT HALF of the previous setting. For example, we adjust the aperture from f-5.6 to f-4; the image at f-4 is half brighter than that of f-5.6. 1)PHOTO 2)GRAPHY (graphos) - AnswersThe word photography was derived from the two Greek terms __1__ which means light and __2__ which means to write. Thus, literally, photography means to "draw with light ,writing with light." - AnswersFunctions of the Aperture Manipulating the size of the aperture enables the photographer to control the following: - The amount of Light - The smaller the lens opening, meaning higher f-number, the lesser the light that will enter the camera and viceversa - The Depth of Field (DOF) the smaller the aperture (high f-number), the Longer or the deeper depth of field and the larger the aperture (low f-number), the shorter or shallow depth of field. 1. Camera (light tight box) 2. Light/ 3. Image/subject 4. Chemical process or development 5. Sensitized materials (film and photographic paper) - AnswersEssential Elements of Photography (CLICS) From the definition above, we can derive the elements of photography. It states that before a photograph can be produced, the following must come together: Depth of field The DOF can either be shallow or deep. - Answersis the amount of distance between the nearest and farthest objects in a scene that appear sharp in the image. POLICE PHOTOGRAPHY - AnswersThe science which deals with the study of the principles of photography and the preparation of photographic evidence and its application to police work. Short or Shallow DOF - AnswersDOF it means that less objects are in focus. It is either the foreground (front) orbackground is in focus. This is used if emphasis is needed. Forensic Photography - AnswersTYPES OF PHOTOGRAPHY. - the process of photographing crime scene or any other objects for court presentation. Long or Deep DOF - AnswersDOF - it means that more objects are in focus. The foreground and the background are acceptably sharp. Infra-red Photography - AnswersTYPES OF PHOTOGRAPHY. - the art or process of photographing or recording unseen objects by means of infra-red light. This is usually used in photographing dirty documents, burnt documents, obliterated/altered document, and in some cases blood spilled in dark surfaces. read - AnswersTabular presentation of the effect of Aperture to the Photograph F-number/ Aperture size/ Amount of light/ Depth of Field High f-number / Small / less light / Deep DOF Low f-no. / Large / More light ) shallow DOF Microphotography - AnswersTYPES OF PHOTOGRAPHY. - producing a very small photograph as encountered in microfilming or with use of micro film. read - AnswersWhat are the ways of altering the DOF? Depth of field can be altered by adjusting either of thefollowing: (CAF) - Camera- subject distance - Aperture size - Focal length (of the lens) Photomacrography - AnswersTYPES OF PHOTOGRAPHY. - photographing of objects directly enlarged on the negative and magnified from 1-9 times. Altering the DOF by adjusting aperture - Answers- This is the most common and practically accepted way of altering DOF as it does not affect the angle of view of the camera. - The smaller the aperture opening, the deeper the DOF; the bigger the aperture opening, the shallow the DOF Spectrograph - AnswersTYPES OF PHOTOGRAPHY. - a process used in determining the kind of metals submitted for examination. (ning) Focal length - Answersrefers to the distance between the optical center of the lens and the focal plane or film plane (where the light rays are focused). Photomicrography - AnswersTYPES OF PHOTOGRAPHY. - the art of photographing minute objects when maqnified by means of a microscope and enlarged from 10 times and up. read - AnswersAltering the DOF by Adjusting Focal Length: - Focal length refers to the distance between the optical center of the lens and the focal plane or film plane (where the light rays are focused). It is measured in millimeters (mm). - The shorter the lens focal length, the deeper the DOF. The Longer the Lens Focal Length, the shallow the DOF. Ultra-violet Photography - AnswersTYPES OF PHOTOGRAPHY. - the art or process of photographing or recording unseen objects by means of ultra-violet light. This is usually applied in consortium with the UV lamp to reveal unseen objects. (i.e. fluorescence of paper) read - AnswersAltering the DOF by adjusting the camera- subject distance: - The farther the shooting distance, the deeper DOF; the closer the shooting distance, the shallow DOF. X- ray Photography - AnswersTYPES OF PHOTOGRAPHY. - the process of photographing or recording intemal structure of the body read - AnswersSummary of DOF DOF / Apert