4a. As the heard of the network security department of this noble institution, your mandate is to discuss the measures needed to be taken to curb the nefarious activities of these notorious Hackers. Your submission should touch on seven key areas of network security which will help bring them to a halt. b. Expand extensively on firewalls regarding network security in our data communication. Buttress your input with appropriate diagrams. ci A communication network has a bandwidth of 10 kHz. Calculate the signal-to-noise ratio in dB if the capacity of the channel for a 100Kbps ii. A communications channel with a bandwidth of 4kHz has a signal power to noise ratio of 7. Determine the Channel Capacity. ii. The bandwidth in b above is reduced by 25%. How much should the signal power be increased to maintain the same channel capacity?

4a. As the heard of the network security department of this noble institution, your mandate is to discuss the measures needed to be taken to curb the nefarious activities of these notorious Hackers. Your submission should touch on seven key areas of network security which will help bring them to a halt. b. Expand extensively on firewalls regarding network security in our data communication. Buttress your input with appropriate diagrams. ci A communication network has a bandwidth of 10 kHz. Calculate the signal-to-noise ratio in dB if the capacity of the channel for a 100Kbps ii. A communications channel with a bandwidth of 4kHz has a signal power to noise ratio of 7. Determine the Channel Capacity. ii. The bandwidth in b above is reduced by 25%. How much should the signal power be increased to maintain the same channel capacity?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Which of the following statements are appropriate for the SPI bus (select all that apply): SCLK is asserted by the Master. Any device can be ther Master, but not at the same time. There is no handshake between Master and Slave during a transfer. SPI is half duplex
Q. No 3. In a Public Switch Telephone Network (PSTN), how the analog speech signal is converted to digital signal in the PCM? Also highlight the main functions of the given parts in the PSTN figure. Public Switched Trelephone Network PSTN W7CLOUD.COM Central Office
1. Briefly describe the AMPS system. Describe also the three classifications of AMPS cellular telephones 2. Briefly describe handoff, roaming, cell splitting, frequency reuse, and sectoring in mobile radio system.
5
This is Data comunication problem
Question attached below. Thank you in advance
A uniform quantizer, with average quantization power of 67.5 mW, is used in a PCM system. 1) What is the step-size of this quantizer? 2) If the peak value of the quantizer is 12 volts, what is the number of bits of this quantizer? 3) If the quantizer is mid-tread; . Find the level values of the quantizer. • Draw the stair-case characteristics of the quantizer. 4) If an input signal, m(t) = 10 cos(4πt) is applied to the quantizer, what is the resulting SQNR in dB? 5) If the quantizer is replaced with another quantizer with the same peak value, but with two additional bits, what is the resulting change in the SQNR if m(t) is applied to the new quantizer?
5. Draw the DAM and FSK signal corresponding to the information shown below: (20) Created by SEASOFT LTD.
Q1/Draw circuit for asynchronous counter (mod-13), it has negative edge, then write truth table for this circuit. Note (clear and preset are Active High)
24. i) Explain any two digital signal processing techniques used in digital communication system. ii) Compare the noise immunity of Analog and digital communication with neat diagrams.
5. What are different types of RF connectors (e.g. TNC)? Provide pictures of each.
Subject : Digital Signal Processing Prove that correlation can be used for System Identification.