Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Computer Network & Security Expert

problem1. Illustrate out the functions of modulator and source encoder in digital communications system.

Quetsion2. By using suitable exs, make a distinction between the simplex and half duplex mode of communication.

problem3. In brief describe what is meant by physical topology of a network. Given that there are n devices in a network, what is the number of cable links required for following topologies?

(i) Mesh

(ii) Ring

(iii) Bus

(iv) Star

problem4. Determine which layer of the OSI model each of the 5 functions below is most likely to belong to. It is also possible that one or more of the functions cannot be mapped to OSI layer.  If this is the case, describe why.

i) Translating between EBCDIC to ASCII

ii) Defining the pin-outs in a connector employed to attach to a network cable

iii) Generating error correction codes for packet error correction

iv) Arbitrating between multiple nodes attached to single medium

v)  Providing an interface to visual packet monitoring program

problem5. Why is digital transmission better than analog transmission over long distance where repeaters are required in any case?  Give two merits of digital transmission over analogue transmission.

problem6. Assume that the length of a 10Base-5 cable is 2500 metres. If the speed of propagation in a thick co-axial cable is 60% of the speed of light, how long does it take for a bit to travel from the beginning to the end of the cable? Skip any propagation delay in equipment. (Speed of light = 3 x 108 m/s)

Computer Network & Security, Computer Science

  • Category:- Computer Network & Security
  • Reference No.:- M95821

Have any Question? 


Related Questions in Computer Network & Security

Project infrastructure and securitythis assignment consists

Project: Infrastructure and Security This assignment consists of two sections: an infrastructure document and a revised Gantt chart or project plan. You must submit both sections as separate files for the completion of t ...

Perimeter securitythe project deliverables are as

Perimeter Security The project deliverables are as follows: • Update the Information Network Security Architecture Design document title page with a new date and project name. • Update your previously completed sections ...

Proposal projectchoose one of the following for this

Proposal Project Choose one of the following for this project and See attachment for complete instruction and please remember to send a turnitin report. 1) Metasploit 2) Wireshark 3) Back Track 4) Nessus 5) Cain & Abel P ...

Learning team apply encryption standardsyour team was

Learning Team: Apply Encryption Standards Your team was invited to present to a high school IT class to explain how cryptography works. In order to explain the basics, you decide to show the class a tool called, CrypTool ...

Assignmentyou have been tasked with reconfiguring the

Assignment You have been tasked with reconfiguring the network for your company, which has grown considerably over the past year. You have used only static routing in the past, but you do not wish to spend the administra ...

Web and data securitybullyour company security

Web and Data Security • Your company, Security Professionals Inc., has been engaged to perform a wireless and remote connectivity assessment and submit a proposal. The perimeter assessment / current state is included as ...

Discussion boardprimary task response within the discussion

Discussion Board Primary Task Response: Within the Discussion Board area, write 400-600 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discus ...

Assignmentplanning is an important aspect with any

Assignment Planning is an important aspect with any enterprise network structure. However, planning must encompass several aspects including not only the assessment of the technology required, but also keeping the stakeh ...

Assignmentin this project we will design a network solution

Assignment In this project we will design a network solution that is suitable for a small business. Our business is located in an office park in one floor of a new office building. Our office has all of the modern featur ...

Networking trends papernbsp in this paper you will research

Networking Trends Paper:  In this paper, you will research and report on network design and management trends over the last three years (present year minus 2) in the areas of virtualization, security, hardware, network m ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen