Exam (elaborations)
Introduction to Computer Networks and Cybersecurity
- Course
- Institution
- Book
Introduction to Computer Networks and Cybersecurity
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Introduction to Computer Networks and Cybersecurity
-
Introduction to Computer Networks and Cybersecurity
-
Solution Manual: Introduction to Computer Networks and Cybersecurity, 1st Edition by Chwan-Hwa Wu - Chapters 1-28, 9781138071896 | Rationals Included
Seller
Follow
kushboopatel6867
Content preview
Solutions Manual For Introduction to Computer Networks andCybersecurity 1st Edition By Chwan-Hwa (John) Wu; J. David
Irwin 9781138071896 ALL Chapters .
Characteristics of computer networks: - ANSWER:
- Sharing
- Performance
- Reliability
- Security
Sharing - of digital resources
Performance - Assessed in terms of speed of data transmission and number of users
Reliability - maintenance of data communication in case of hardware failure or
connectivity issues
Security - where steps for protecting data from unauthorised access can be
implemented
Advantages of computer networks - ANSWER: - share hardware, software and data
files
- allows internal communication (email)
- central backup
- network activity can be monitored
- centrally controlled security
- can access data from any computer
Disadvantages of computer networks - ANSWER: - network manager may have to be
employed
- security problems e.g. files sent between computers may spread viruses
- if the server is down, all workstations on the network are affected
- initial cost of servers, devices etc.
Network - ANSWER: collection of computers,servers and other nodes connected to
each other to allow the sharing of resources and data
Network topology - ANSWER: arrangements of nodes and connections between
them that make up a network
LAN - ANSWER: connected computer systems are relatively close to each other, wire
optic cables
WAN - ANSWER: Networks of computer systems that are geographically remote,
microwave links, undersea cables and communication satellites
Star Topology Advantages and Disadvantages - ANSWER: Advantages:
- stable layout, if one node fails, the rest of the network will continue working
unaffected
, - devices can be added/removed without the network being taken offline
Disadvantages :
- If the central hub goes down then network won't be able to function
- expensive and will need an expert to set up
Ring Topology Advantages and Disadvantages - ANSWER: Advantages:
- efficient at transmitting data without errors as only one is allowed to send data at a
time, reducing the risk of packet collisions
Disadvantages:
- if one node goes down, it can take the entire network with it
- addition of more devices can result in communication delays
Bus Topology Advantages and Disadvantages - ANSWER: Advantages:
- simple, all nodes connected with one cable
- more nodes can easily be added
Disadvantages:
- if the cable experiences a failure the whole network goes down, expensive to
restore
Mesh Topology Advantages and Disadvantages - ANSWER: Advantages:
- reliable, node failures won't bring network down
- much less chance of collisions
Disadvantages:
- complex, high cabling costs
- needs expert to set up
Router - ANSWER: Device designed to receive, analyse and move incoming packets
to another network.
Commonly used in home networks to share a single internet connection between
multiple computers
Hub - ANSWER: Serves as a connection point for all devices in a LAN. No intelligence
on where to send info and broadcasts all network data across each connection ( to
every node)
Switch - ANSWER: A LAN device that determines where to send each incoming
message according to the Media Access Control (MAC) address.
Bridge - ANSWER: A device that can create a single network by connecting two or
more networks together so that they work as a single network
Wireless Application Protocol (WAP) - ANSWER: Technical standard for accessing
information over a wireless network
Network Interface Card/controller (NIC) - ANSWER: Hardware component that
connects a computer to a computer network
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller kushboopatel6867. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73314 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now