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Ð ÐCost efficiency: By consolidating resources, networks help reduce operational costs. For example, rather than each
employee purchasing software licenses, companies can install software on a server and provide shared access to
all users.
Ð ÐRemote access: Networks enable users to access resources from remote locations, supporting flexible work
arrangements. Employees can connect to their office network via Virtual Private Networks (VPNs), ensuring secure
access while working from home.
Ð ÐSecurity: Networks can implement robust security measures, such as firewalls and encryption, to protect sensitive
data. Organisations often adopt security protocols to restrict access only to authorised personnel.
Ð ÐBackup and recovery: Centralised backup solutions enable automatic data saving, simplifying recovery in the
event of data loss. Companies often use backup servers to store critical data copies, ensuring quick recovery from
hardware failures.
Ð ÐScalability: Networks can be easily expanded by adding new devices or resources without causing significant
disruptions. For example, a growing business can integrate more computers into the network seamlessly.
Disadvantages of Network
Several disadvantages of a network are as follows:
Ð ÐSecurity issues: Networks are susceptible to cyber threats such as hacking and malware attacks, which can
compromise sensitive data. For instance, a data breach in a corporate network could expose personal information,
leading to significant financial and reputational damage.
Ð ÐCost of setup: Establishing a network can be expensive due to the costs associated with hardware, software, and
installation. Organisations often need to invest in routers, switches, and cabling, which can quickly add up.
Ð ÐMaintenance requirements: Networks require regular monitoring, maintenance, and troubleshooting to ensure
smooth operation and security. IT staff must continually update software, manage hardware failures, and monitor
network performance.
Ð ÐData privacy: Sharing data across a network increases the risk of unauthorised access and potential privacy breaches.
For example, employees accessing sensitive customer information might inadvertently expose it to unauthorised
personnel.
Ð ÐNetwork failure: If a network experiences downtime or failures, it can halt business operations and result in
productivity losses. A power outage affecting the main server could prevent all connected users from accessing
necessary resources.
Ð ÐComplexity: Larger networks can become complex, requiring specialised knowledge and tools to manage effectively.
Managing a multi-site network with various devices and configurations may necessitate skilled IT professionals.
Ð ÐDependency on central server: Many networks rely on a central server to manage resources; if it fails, users may
lose access to critical services. For example, if a business uses a central database, a server crash could prevent
employees from accessing customer records.
Ð ÐVirus and malware spread: When one device on the network becomes infected, malware can quickly spread to
other connected devices. A single compromised computer can infect the entire network, leading to widespread
data loss.
Terminologies of Networking
There are various terminologies of networking like client, server, network interface card, etc. Let us now understand
some of them.
Nodes (Workstations)
A node is defined as a connection point or device connected to a network that is able to send, receive, or forward
information. When a computer is connected to a network, it becomes a node (also known as a workstation). On a
network, each user has their own workstation. There would be no network if there were no nodes.
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