Topic 2 & 3 Networking Fundamentals Part I

Topic 2 Networking Fundamentals Part I

A231

Labelling

Label the network types.

Drag labels to their correct position on the image

LAN

MAN

PAN

WAN

​A metropolitan area network (MAN) is a computer network that is larger than a single building local area network (LAN) but is located in a single geographic area that is smaller than a wide area network (WAN).

​Personal Area Network (PAN)?

​Personal Area Network (PAN) is the computer network that connects computers/devices within the range of an individual person.

• connects electronic devices within a user's immediate area.

• ​range from a few centimetres to a few meters.

• ​E.g.: a desktop computer, a wireless mouse, & wireless headphones can all be connected to each other, but only the computer can connect directly to the Internet.

​

Personal Area Network​

COMPUTER NETWORKING: PAN

​

Reorder

Reorder the following network type based on their capacity of network coverage from the largest to the smallest.

The first one in the order is the largest network coverage.

• WAN

• MAN

• LAN

• HAN

• PAN

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

*Internet users may use a VPN to give themselves more privacy and anonymity online or circumvent geographic-based blocking and censorship.

​Encryption is a way of scrambling data so that only authorized parties can understand the information. In technical terms, it is the process of converting human-readable plaintext to incomprehensible text, also known as ciphertext.

​Tunnel

​Device Posture Check (DPC)

​Trusted Devices

​A procedure or a piece of software that performs checks on connecting devices.

​

​E.g.: Allow network access from devices that have specific antivirus software(opens in new tab), possess a particular authorization file, have an encrypted hard drive, or other suitable certificates that are underlined by the administrator

​After this, the devices that are allowed access to the network are classed as trusted devices

Draw

Draw remote access VPN.

​Why Network Topology is important?

• An essential role in how well your network functions.

• ​Choosing the right topology for your company’s operational model can increase performance while making it easier to locate faults, troubleshoot errors, and more effectively allocate resources across the network to ensure optimal network health

• A streamlined and properly managed network topology can increase energy and data efficiency, which can in turn help to reduce operational and maintenance costs.

Dr. Harryizman Harun SMMTC, UUM​

​Two Categories Network Topology

• Physical:

  • The physical network topology refers to the actual connections (wires, cables, etc.) of how the network is arranged. Setup, maintenance, and provisioning tasks require insight into the physical network.

• Logical:

  • The logical network topology is a higher-level idea of how the network is set up, including which nodes connect to each other and in which ways, as well as how data is transmitted through the network. Logical network topology includes any virtual and cloud resources.​

Dr. Harryizman Harun SMMTC, UUM​

​A terminator is added at ends of the central cable, to prevent bouncing of signals which can cause interference.

• A tree topology is also known as a star bus topology. It incorporates elements of both a bus topology and a star topology.

• If the main cable (trunk) between the two star topology networks failed, those networks would be unable to communicate with each other. However, computers on the same star topology would still be able to communicate.

​Since data flows in one direction, the chance of a packet collision is reduced

​If one device fails, the entire network is impacted

The data from the transmitting node to the destination is transmitted by using tokens. So this topology is also called token ring topology.

• ​The secondary ring provides redundancy in case of a failure in first ring, and also can serve as an additional data path.

• Main advantage of dual ring topology over traditional ring topology is that dual ring topology provides redundant paths in networks.

  • Redundant paths provide more stability and security in networks.

Review Questions

Topic 2 Part I

Multiple Choice

All information is stored in binary data known as _______.

• bits

• bytes

Multiple Choice

A network restricted to a single site is _________.

• Metropolitan Area Network

• Wide Area Network

• Personal Area Network

• Local Area Network

Multiple Choice

What is a Personal Area Network?

• A network restricted to the boundaries of a single metropolitan area

• A network restricted to a single site

• A network for interconnecting electronic devices within an individual person's workspace

• A network that can span the entire globe

Multiple Choice

A _______ VPN securely connects a device outside the corporate office.

• site-to-site

• remote access

Multiple Choice

VPN technology is available to check whether a device meets certain requirements, also called a device’s ________, before it is allowed to connect remotely.

• security

• quality

• posture

• condition

Multiple Choice

Which network topology represented by the photo?

• Mesh

• Star

• Bus

• Tree

• Ring

Draw

Draw a tree network topology

Multiple Choice

Which network topology represented by the photo?

• Bus

• Star

• Mesh

• Tree

• Ring

Multiple Choice

All nodes are connected to form a continuous loop.

Which network topology is represented by the statement above?

• Bus

• Mesh

• Ring

• Tree

End of Review Questions

Thank you