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1. Dear students get fully solved SMU MBA assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
ASSIGNMENT
DRIVE WINTER 2014
PROGRAM MBADS (SEM 3/SEM 5)MBAFLEX/ MBA (SEM 3)
PGDISMN (SEM 1)
SUBJECT CODE & NAME MI0035 – COMPUTER NETWORKS
BK ID B1973
CREDITS 4
MARKS 60
Note: Answer all questions. Kindly note that answers for 10 marks questions should be
approximately of 400 words. Each question is followed by evaluation scheme.
Q. 1. Explain the working of Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
Protocol.
Answer:CarrierSense Multiple AccessWithCollisionDetection(CSMA/CD) is a media access control
methodusedmostnotablyinlocal areanetworkingusingearlyEthernettechnology.It uses a carrier
sensingscheme inwhichatransmittingdatastationdetectsothersignalswhiletransmittingaframe,
and stopstransmittingthatframe,transmitsajam signal,and then waits for a random time interval
before trying to resend the frame.
CSMA/CD is a modification of pure carrier
Q. 2. Differentiate between seven layered OSI reference model and four layered OSI reference
model.
Answer:The OpenSystemsInterconnectionmodel(OSI) isaconceptual model thatcharacterizesand
standardizes the internal functions of a communication system by partitioning it into abstraction
layers. The model is a product of the Open Systems Interconnection project at the International
Organization for Standardization (ISO), maintained by the identification ISO/IEC 7498-1.
Define seven layered

2. Q. 3. Write short notes on
a. Subnet:A subnetwork,orsubnet,isalogical, visible subdivision of an IP network. The practice of
dividing a network into two or more networks is called subnetting. Computers that belong to a
subnet are addressed with
b. Super netting:A supernetwork, or supernet, is an Internet Protocol (IP) network that is formed
fromthe combinationof twoormore networks(orsubnets) with a common Classless Inter-Domain
Routing (CIDR) prefix. The new
c. Subnet masks: A Subnet mask is a 32-bit number that masks an IP address, and divides the IP
address into network address and host
d. Dynamic NAT: DynamicNATisatype of NATin whicha private IPaddress is mapped to a public IP
address drawing from a pool of registered (public) IP addresses. Typically, the NAT router in a
network will keep a
e. Domain Name System:The Domain Name System (DNS) is a hierarchical distributed naming
system for computers, services, or any resource connected to the Internet or a private network. It
associates various information with domain names assigned to each of the participating entities.
Most prominently, it translates
Q. 4. What is DWDM? What are the pros and cons of DWDM
Answer:Dense wavelength division multiplexing (DWDM) is a technology that puts data from
differentsources together on an optical fiber, with each signal carried at the same time on its own
separate lightwavelength.UsingDWDM, upto 80 (and theoreticallymore) separate wavelengths or
channels of data can be multiplexed into a lightstream transmitted on a single optical fiber. Each
channel carries a time
Q. 5. Briefly explain the networking applications in government sector
Listing the objectives
About networking applications – understanding the networking for government sector and listing
the websites and portals and explaining for them
Answer:Whenwe speakof applications,we simplymeanthe things a computer or other tool can be
usedfor. You are familiar with many applications, like word processing, email, Web browsing, and
spreadsheet processing.

3. Q. 6. Explore the different models in cloud environment and their examples
Answer: Infrastructure as a Service: In the most basic cloud-service model & according to the IETF
(Internet Engineering Task Force), providers of IaaS offer computers – physical or (more often)
virtual machines–and otherresources.(A hypervisor,suchasXen,Oracle VirtualBox,KVM,VMware
ESX/ESXi, or Hyper-V runs the virtual machines as guests. Pools of hypervisors within the cloud
operational support-system can support large
Dear students get fully solved SMU MBA assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601