Description : Information per source is called a. A. sampling b. B. quantization c. C. entropy d. D. normalization
Last Answer : c. C. entropy
Description : An alphabet consist of the letters A, B, C and D. The probability of occurrence is P(A) = 0.4, P(B) = 0.1, P(C) = 0.2 and P(D) = 0.3. The Huffman code is a. A = 01 B = 111 C = 110 D = 10 b. A = 0, B = 100, C = 101, D = 11
Last Answer : b. A = 0, B = 100, C = 101, D = 11
Description : Probability model is based on a. Probability b. Physics c. Frequency d. None
Last Answer : c. Frequency
Description : Extended Huffman method is used due to a. Large alphabet b. Skewed probability c. Equal probability d. Both (a) and(b)
Last Answer : b. Skewed probability
Description : In dictionary techniques for data compaction, which approach of building dictionary is used for the prior knowledge of probability of the frequently occurring patterns? a. Static Dictionary b. Adaptive Dictionary c. both a and b d. None of the above
Last Answer : a. Static Dictionary
Description : If the probability is not given which method is preferable a. Huffman b. Non Binary Huffman c. Adaptive Huffman d. Extended Huffman
Last Answer : c. Adaptive Huffman
Description : A sport/event organization that wants to obtain information about the population in a certain geographic location might use A. Government sources B. Primary Databases C. Personal Questionaires D. telephone surveys
Last Answer : B. Primary Databases
Description : Which of the following is a secondary source of sport/event information: A. Accounting records B. Demographic reports C. Computerized surveys D. Personal interviews
Last Answer : B. Demographic reports
Description : Calculate the entropy for : P(A) = 0.4, P(B) = 0.2, P(C) = 0.2, P(D) = 0.1,P(E) =0.1 a. 1.24 b. 1.22 c. 1.28 d. 1.30
Last Answer : b. 1.22
Description : Which of the following is a benefit of lossy compression over lossless? A. File sizes will always be reduced, even when compressed multiple times. B. File quality is not harmed, e.g. ... can be decompressed back to their original uncompressed form. D. File sizes are usually significantly smaller.
Last Answer : C. Files can be decompressed back to their original uncompressed form.
Description : .............. means that a printed document will appear exactly as it does on-screen A. Layout B. Publish C. Clip art D. WYSIWYG
Last Answer : C. Clip art
Description : A Huffman code: A = 1, B = 000, C = 001, D = 01 ,P(A) = 0.4, P(B) = 0.1, P(C) = 0.2, P(D) = 0.3 The average number of bits per letter is A. 8.0 bit B. 2.0 bit C. 1.9 bit D. 2.1 bit
Last Answer : C. 1.9 bit
Description : A Huffman code: A = 1, B = 000, C = 001, D = 01 ,P(A) = 0.4, P(B) = 0.1, P(C) = 0.2, P(D) = 0.3 The average number of bits per letter is a. 8.0 bit b. 2.0 bit c. 1.9 bit d. 2.1 bit
Last Answer : c. 1.9 bit
Description : Spurious tuples may occur due to i. Bad normalization ii. Theta joins iii. Updating tables from join a) i& ii b) ii & iii c) i& iii d) ii & iii
Last Answer : a) i& ii b) ii & iii
Description : Relational database schema normalization is NOT for: (A) reducing the number of joins required to satisfy a query. (B) eliminating uncontrolled redundancy of data stored in the database. (C) ... could otherwise occur with inserts and deletes. (D) ensuring that functional dependencies are enforced.
Last Answer : reducing the number of joins required to satisfy a query.
Description : Which best describes Lossless Compression? A. No information is lost but file size is increased B. There is no loss in information at all after compression C. Files which have the exact same data after compression D. Compression that involves an algorithm
Last Answer : B. There is no loss in information at all after compression
Description : In the encoded file, which type of changes are made in sysmbols ? a) They are compressed b) They are changed to a letter or symbol c) They are represented in the graphical form d) No changes are made
Last Answer : d) No changes are made
Description : In the encoded file, which type of changes are made in sysmbols ? a. They are compressed b. They are changed to a letter or symbol c. They are represented in the graphical form d. No changes are made
Last Answer : d. No changes are made
Description : Source of information depending on finite no of outputs is called a. A. markov b. B. finite memory source c. C. zero source d. D. Both A and B
Last Answer : d. D. Both A and B
Description : In an all weld tensile test, the original specimen gauge length was 50mm, and after the test the increased gauge length was 65mm, what is the elongation percentage? a) % A is 40 b) % A is 60 c) % A is 30 d) % A is 36
Last Answer : c) % A is 30
Description : To divide information among cells A. Wrap B. Split C. Lock D. Column
Last Answer : B. Split
Description : To change the font size in order to display more text or other data A. Border B. Shading C. Shrink to fit D. Printing area
Last Answer : A. Border
Description : To make lines of text appear on multiple lines of a cell A. Wrap B. Split C. Lock D. Column
Last Answer : D. Column
Description : A webpage is an example of an ........... electronic document A. Comp B. DTP C. On screen D. Online
Last Answer : C. On screen
Description : This document is designed to be viewed ........ on your tablet A. Comp B. DTP C. On screen D. Online
Last Answer : A. Comp
Description : A ........ is an initial document that shows where all text and graphic elements will be placed A. Comp B. DTP C. On screen D. Online
Description : What does 'WYSIWYG' stand for? A. Why you see is why you get B. When you see is when you get C. What you see is what you get D. Where you see is where you get
Last Answer : D. Where you see is where you get
Description : A particular way of coding information for storage in a computer file A. Raster graphic B. Vector graphic C. File format D. Layer
Last Answer : A. Raster graphic
Description : Data compression which guarantees that all original data can be restored exactly A. Lossless compression B. Lossy compression C. File compression D. Raster compression
Last Answer : B. Lossy compression
Description : Which of these is NOT a way to decrease image blurriness? A. Use compatible file formats B. Increase the size of thumbails C. Save images using loseless compression D. Check if raster or vector graphics work better
Last Answer : A. Use compatible file formats
Description : A program allows a user to design and publish a document using only a computer and a printer A. DTP B. PDF C. PPT D. DOC
Last Answer : A. DTP
Description : The term for small images or icons that can be inserted into a document A. Clip art B. Layout C. DTP D. Posters
Last Answer : C. DTP
Description : What is DTP? A. Desktop Program B. Desktop Printout C. Desktop Publishing D. Desktop Power Point
Last Answer : B. Desktop Printout
Description : How does lossy compression reduce the size of files? A. Through removing redundancies by grouping repeated data together. B. By removing some precision in data that humans would have difficulty to ... the amount of storage needed. D. By replacing blocks of data with more compact representations.
Last Answer : D. By replacing blocks of data with more compact representations.
Description : What type of compression actually deletes data and cannot be decompressed? A. File Compression B. Lossless Compression C. Lossy Compression D. Archive Compression
Last Answer : D. Archive Compression
Description : Hamzah needs to email a large file to a classmate. Why might he need to use file compression to do so? A. Email services often only let you send compressed data files. B. Compressed files are ... . D. Email services often have maximum file sizes that prevent you sending files that are too large.
Last Answer : D. Email services often have maximum file sizes that prevent you sending files that are too large.
Description : External data can be useful because: A. It is the most expensive to obtain B. It is the cheapest to obtain C. It is most reliable D. It is the most current
Last Answer : B. It is the cheapest to obtain
Description : shipping/inventory and billing records are examples of A. external data B. internal data C. qualitative data D. clickstream data
Last Answer : B. internal data
Description : Internal data comes from: A. within the organization B. from the government C. inside the target market D. inside the human mind
Last Answer : A. within the organization
Description : Quantitative Data has to do with numbers or data that can be ___. A. Observed B. Tasted C. felt by emotion D. measured
Last Answer : D. measured
Description : Which is not an example of Qualitative Data A. color B. smell C. beauty D. volume
Last Answer : A. color
Description : Which is an example of primary data? A. journal entry B. survey C. census data D. news article
Last Answer : C. census data
Description : All Waves A. Have troughs and nodes B. Move back and forth C. Transfer energy D. are big
Last Answer : A. Have troughs and nodes
Description : A point where a wave crosses its resting line A. Node B. Frequency C. Transversal D. Trough
Last Answer : B. Frequency
Description : Energy of movement A. Potential energy B. Kinetic energy C. Sound energy D. spring energy
Last Answer : D. spring energy
Description : A wave in which the wave’s medium is compressed in the same direction as the movement of the wave A. Transversal wave B. Transverse wave C. Frequency wave D. compression wave
Last Answer : C. Frequency wave
Description : Speed in a given direction A. Wavelength B. Frequency C. Velocity D. Waves per second
Last Answer : A. Wavelength
Description : A wave in which the movement of the wave’s medium is perpendicular to the movement of the wave traveling through the medium A. Transverse waves B. Compression waves C. Nodular Waves D. Ocean Waves
Last Answer : A. Transverse waves
Description : A back-and-forth pattern of motion that transfers energy A. Wave B. Pulse C. Reflection D. Frequency
Last Answer : D. Frequency
Description : A rate of something that repeats over and over. A. Pulse B. Wave C. Velocity D. Frequency
Last Answer : C. Velocity