Network security aims to protect networks from unauthorized access, data loss, and viruses. There are two main types of network security: physical security and logical security. Key goals of network security are confidentiality, integrity, and availability of data. While network security safeguards data through encryption, firewalls, and anti-virus software, it also has disadvantages such as cost and potential for a false sense of security.

1. NETWORK SECURITY

2. CONTENTS
Introduction
Types of Network Security
Security from
Goals of Network Security
Importance of Security
Preventive steps for network security
Way to secure data
Advantages
Disadvantages
Scopes of improvement
Conclusion

3. INTRODUCTION
Network
The networks are comprised of “nodes”, which
are “client” terminals and one or more “server” and
“host” computer
Security
Security is the condition of being protected
against or loss. In the general case is the concept similar
to safety
Network Security
Controlling systems to prevent any accidental or
intentional data loss

4. TYPES OF NETWORK SECURITY
There are two types of network security
1. Physical Security
2. Logical Security

5. SECURITY FROM
We need Security from
• Unauthorized access
• Viruses
• Hackers

6. GOALS OF NETWORK
SECURITY
 Confidentiality
 Integrity
 Availability

7. IMPORTANCE OF SECURITY
 Huge amount of internet access.
 Huge amount of personal, commercial, governmental,
and military information.
 The vast connectivity also poses monumental risks.

8. PREVENTIVE STEPS FOR
NETWORK SECURITY
 Establishing a plan
 Know your attackers
 Determine the pain of thresholds
 Understand the sources of risk

9. WAY TO SECURE DATA
 Encryption
 Anti-virus Packages
 Firewall

10. ADVANTAGES
 Network Security Safeguard our data from
1.Hackers
2.unauthorized access
3.Viruses
 Network Security makes our system robust.
 Network Security makes the system reliable.

11. DISADVANTAGES
 Cost can be a big factor
 False sense of Security

12. SCOPES OF IMPROVEMENT
 Cost
 Difficult to implement
 Difficult to identify potential threads
 Compatibility: between two systems
 Maintenance

13. CONCLUSION
 Network Security is very important for any
organization
 It plays a major role in protecting the network from
any type of intrusions, virus attacks, spyware etc.