Solution-Communications and network security

Assignment Help Basic Computer Science

1. Communications and Network Security/Network Models, Topologies and Protocols

Must post first.After reading this week's materials, please respond to one or more of the following questions.

Describe the differences between bus, ring, star and mesh topologies.
Explain the TCP/IP Model in terms of functions at each layer. How do the layers map to the OSI Model layers?
The Transport layer provides two service protocols: UDP and TCP. Explain the differences between the two protocols in terms of guaranteed vs. non-guaranteed service and connection-oriented versus connection-less communication.
Describe the different WLAN standards within the 802.11 family. What is a rogue access point?

2. Communications and Network Security/Network Devices, Attacks and Perimeter Security

Must post first.After reading this week's materials, please respond to one or more of the following questions.

Describe the functions of hubs/repeaters, bridges, switches, routers, and gateways. At what layers of the OSI model does each device operate?
Describe the following types of network attacks: denial of service (and DDoS), malformed packet attacks, flooding, sniffing, Ransomware, DNS hijacking, and drive-by download. Give an example of a DoS or DDoS attack and describe how it overwhelms a target system.
Depending on their needs and budget, companies can choose from a variety of perimeter security options. Discuss the differences between packet-filtering, stateful inspection, proxy, dynamic packet filtering, kernel proxy, and next generation firewalls and how they provide security filtering to protect the perimeter.

What experienced new employee to your organization : You as a mid-level manager and supervisor are required to hire a new entry-level yet some what experienced new employee to your organization.

Research articles on ethical issues in information systems : Identify at least three (3) problems related to management information systems that may arise from the issue that you have chosen.

Simply pointing out the differences is not analysis : Write a critical analysis of one of the works from weeks 1 or 2. An overview of approaches can be found here, but many are quite straightforward

What experienced new employee to your organization : You as a mid-level manager and supervisor are required to hire a new entry-level yet some what experienced new employee to your organization.

Communications and network security : 1. Communications and Network Security/Network Models, Topologies and Protocols

New employee due to new management organization direction : It has been determined by higher management that you now must terminate (fire) the new employee due to new management organization direction.

Describe the causes and the consequences of ineffectiveness : Or, if you can't think of one, have you ever worked for a bad manager? Describe the causes and the consequences of their ineffectiveness.

Describe what the writers seem to be saying : Describe what the writers seem to be saying about masculinity and/or femininity

Logistics practiced in commercial sector : What are the basic differences between logistics practiced in the commercial sector and that of the defense sector?