Download CUSTOMER_CODE SMUDE DIVISION_CODE SMUDE

CUSTOMER_CODE
SMUDE
DIVISION_CODE
SMUDE
EVENT_CODE
APR2016
ASSESSMENT_CODE MCA5031_APR2016
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
39287
QUESTION_TEXT
Describe the characteristics of Digital video
1.
2.
3.
SCHEME OF EVALUATION 4.
5.
6.
7.
Frame rate
Interlacing
Display resolution
Aspect ratio
Color model
Pixel depth
Bit rate (1+2+2+1+1+1+2)
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
39289
QUESTION_TEXT
Discuss various components of Multimedia system
1.
2.
SCHEME OF EVALUATION 3.
4.
5.
Capture devices
Storage devices
Communication networks
Computer systems
Display devices (2 Mark each)
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
74013
QUESTION_TEXT
Explain different types of servers in general.
SCHEME OF
EVALUATION
Data Processing servers:
Data processing servers are traditional database servers that contain
alphanumeric data. The database can be relational or object–oriented
database. In relational database, data fields or records are stored in
columns in a table. In object–oriented database, the records become
the attributes of the object. In both the cases, some fields or
attributes are indexed to provide fast access to data.
Document database servers:
Document database servers are used to for electronic mail database
and document based repositories. They are similar to the traditional
database as they also contain alphanumeric data but differ from it as
they contain special text fields that may be indexed within themselves
using a hypertext engine. The text fields in document database that
support hypermedia documents may have linked binary files, images,
audio, and video objects.
Document imaging and still–video servers:
This type of server is used to store and manage image and still video
objects. An image objects may be of different sizes ranging from tens
to several hundreds of kilobytes. The server software may be set up
with special caching mechanism to speed up access to stored images.
Audio and voice mail servers:
These types of server are used basically for applications such as voice
mail, voice annotations, and voice help messages. The audio objects
even after compression are huge and occupy large storage space. So
dedicating server for audio objects only will speed up the search and
retrieval process.
Full–motion video servers:
Video servers are designed to manage large objects. For example, a
10 sec video object requires storage of few megabytes. Apart from
usual indexing functions, video servers should support the isochronous
playback requirements for video objects by reserving network
bandwidth.
(10 marks)
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
74014
QUESTION_TEXT
Explain different types of multimedia systems.
SCHEME OF
EVALUATION
Home/Entertainment systems:
These programs are by and large, interactive but not live. Although
they are called interactive, the interaction is completely
preprogrammed on the game CD, and the programs interact with user
in a pre defined manner. However with the developments like Set Top
Box, interaction between the player/user and the
game/entertainment/database vendor has started. The service
provider may provide live interactive game services, access to
information databases, home shopping services with line ordering and
electronic mail services.
Business Systems:
Business systems can be classified into 3 categories:
Dedicated System:
In a dedicated system, the creation, storage and manipulation of
multimedia data is performed completely within the system. It is
dependent neither on a network nor external storage
systems. Multimedia data capture is performed primarily by and for
the user of the dedicated system.
Departmental System:
It uses a LAN to provide shared data storage management. In a
departmental system, capture of multimedia data is for local use for
distribution to other users in the department. The application can be
for dedicated use or may be shared by a number of users. Most
departmental systems support a specific business process or some well
defined combination of business processes shared by most or all users
in the department.
Enterprise–wide multipurpose systems:
An enterprise wide system consists of a large number of LAN’s and
WANS that is implemented and allows sharing a number of
departmental levels or enterprise level management and processing
resources. It supports a combination of dedicated local applications
and departmental applications as well as inter–departmental
applications such as electronic mail and corporate information
repositories.
(10 marks)
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
74015
QUESTION_TEXT
Explain Optical Storage Devices.
SCHEME OF
EVALUATION
Optical storage devices are most widely used now a day and are the
most reliable storage device. These devices use laser technology to
store and read data to and from the optical storage media. The
examples of optical storage media are compact discs, DVDs and blue ray
discs. The device that are used for reading data from optical storage
device is called optical disc drives such as CD players, DVD players and
DVD recorders. Optical devices along with flash memory have mostly
replaced floppy disc drives and magnetic tape drives because optical
media are cheaper and the near ubiquity of optical drives in computers
and consumer entertainment hardware.
An optical storage media consists of a flat, round, portable metal disc,
which is coated with a thin metal or plastic or other material that is
highly reflective. These discs are usually 1.22mm thick with 120 mm
or 80mm in diameter. The information on the optical disc is stored in
the form of pits and lands. The pits are the tiny reflective bumps that
are created with laser beam. The lands are flat areas separating the
pits. A land reflects the laser light, which is binary digit 1. A pit
absorbs or scatters light, which is binary digit 0. The high power laser
beams creates the pits. A lower powered laser light reads data from
the disc.
All the drives attached to a computer are assigned some letter as a
reference. The optical storage devices are assigned after all the hard
discs and other portable discs have been assigned. For example, if a
computer has one floppy drive, one hard disk, and one CD–ROM drive
then letters assigned to drive will be as under: ‘A’ for floppy disk drive,
‘C’ for hard disk drive, ‘E’ for CD–ROM drive.
(10 marks)
QUESTION_T
DESCRIPTIVE_QUESTION
YPE
QUESTION_ID 74016
QUESTION_T What is MPEG Audio Coders? Compare between MPEG Layer1, 2, and 3 with
EXT
respect to application, compressed bit rate and quality.
MPEG is a working group of experts that was formed by ISO and IEC to
formulate a set of standards relating to a range of multimedia applications
involving video and audio primarily.
Comparison between MPEG Layer 1, 2, and 3
SCHEME OF
EVALUATION
(10 marks)