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Internet vs Intranet vs Extranet

Introduction

Questions on Internet, Intranet, and Extranet test your understanding of network access and usage scope. These are foundational concepts frequently asked in banking and insurance exams because they reflect real-world organisational and internet usage.

Pattern: Internet vs Intranet vs Extranet

Pattern

The key idea is to distinguish networks based on who can access them and how openly information is shared.

Step-by-Step Example

Question

An organisation allows only its employees to access internal documents, while selected vendors can access limited parts of the same system through login credentials. Which type of network is used for vendor access?

Options:
A. Internet
B. Intranet
C. Extranet
D. LAN

Solution

  1. Step 1: Identify internal access

    The internal documents accessible only to employees indicate an Intranet.

  2. Step 2: Analyse external limited access

    Vendors are external users who get controlled and limited access.

  3. Step 3: Match with correct network type

    A network that allows restricted access to outsiders is called an Extranet.

  4. Final Answer:

    Extranet → Option C

  5. Quick Check:

    Internet = public, Intranet = internal only, Extranet = limited external access ✅

Quick Variations

• Internet is used for public websites like news portals and search engines.

• Intranet is commonly used for HR portals and internal dashboards.

• Extranet is often used for supplier, distributor, or partner access.

Trick to Always Use

  • Step 1: If everyone can access → Internet
  • Step 2: If only employees can access → Intranet
  • Step 3: If outsiders get limited access → Extranet

Summary

Summary

In Internet vs Intranet vs Extranet questions:

  • Internet is public and open to all users.
  • Intranet is private and restricted to internal members.
  • Extranet allows controlled access to selected external users.
  • Always focus on access level to identify the correct answer.

Practice

(1/5)
1. Which network is accessible to anyone across the world without any restriction?
easy
A. Internet
B. Intranet
C. Extranet
D. LAN

Solution

  1. Step 1: Identify access scope

    A network open to all users globally indicates public access.

  2. Step 2: Match with definition

    The Internet is a worldwide public network.

  3. Final Answer:

    Internet → Option A

  4. Quick Check:

    Public + global access = Internet ✅
Hint: Public network accessible to everyone is always the Internet.
Common Mistakes: Confusing LAN or Intranet with public networks.
2. An internal company portal used only by employees to access HR policies is an example of which network?
easy
A. Intranet
B. Internet
C. Extranet
D. MAN

Solution

  1. Step 1: Observe user group

    Only employees are allowed to access the portal.

  2. Step 2: Identify network type

    A private internal network within an organisation is called an Intranet.

  3. Final Answer:

    Intranet → Option A

  4. Quick Check:

    Employees only + private access = Intranet ✅
Hint: Internal employee-only systems always indicate an Intranet.
Common Mistakes: Assuming internal portals require internet access, so choosing Internet.
3. Which of the following best describes an Extranet?
easy
A. A network used only within a single building
B. A public network with no security
C. A private network that provides limited access to external users
D. A network connecting computers within a city

Solution

  1. Step 1: Recall Extranet definition

    An Extranet extends an organisation’s Intranet.

  2. Step 2: Focus on access type

    It allows controlled access to selected external users.

  3. Final Answer:

    A private network that provides limited access to external users → Option C

  4. Quick Check:

    Private + restricted external access = Extranet ✅
Hint: Extranet = Intranet + limited outsiders.
Common Mistakes: Confusing Extranet with WAN or city-level networks.
4. A company allows its suppliers to track order status through a secured login system. Which network setup is being used?
medium
A. Internet
B. Extranet
C. Intranet
D. WAN

Solution

  1. Step 1: Identify external users

    Suppliers are outside the organisation.

  2. Step 2: Check access level

    Access is limited and secured, not public.

  3. Final Answer:

    Extranet → Option B

  4. Quick Check:

    Limited access to external users = Extranet ✅
Hint: Controlled access given to outsiders always points to Extranet.
Common Mistakes: Selecting Intranet without considering external user access.
5. Employees accessing company data from home using secure credentials are most commonly using which network environment?
medium
A. Internet only
B. LAN
C. MAN
D. Intranet via Internet

Solution

  1. Step 1: Identify user group

    The users are employees of the organisation.

  2. Step 2: Identify access medium

    They are connecting remotely using the Internet.

  3. Step 3: Combine both concepts

    Employees accessing internal resources remotely means Intranet via Internet.

  4. Final Answer:

    Intranet via Internet → Option D

  5. Quick Check:

    Employees + remote secure access = Intranet via Internet ✅
Hint: Employees accessing internal data remotely still use Intranet.
Common Mistakes: Choosing Internet alone and ignoring internal access control.

Mock Test

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