NETWORK TOPOLOGY

NETWORK TOPOLOGY

Network topology refers to the layout of the computers and devices in a communications network. It describes how each computer or device, also called a node, is connected to one another in a network.

TYPES OF NETWORK TOPOLOGY

• Bus Topology
• Ring Topology
• Star Topology

BUS TOPOLOGY

Layout:

• All computers and devices are connected to a single central cable
• The bus is physical cable that connects the computers and other devices
• Terminators are required at both ends of the backbone cable

Data Transfer:

• Data transmitted on a bus network travels along the bus in both directions
• When a sending device transmits data, the adress of the receiving device is included with the transmission so that the data is sent to the appropriate receiving device
• If the device address does not match the intended address for the data, the device ignores the data
• If the data address match the device address, the data is accepted

Advantages:

• Easy and inexpensive to set up
• Adding and removing nodes can be done without disturbing the rest of the network
• Failure of one node does not affect the rest of the network

Disadvantages:

• Failure of the central cable will shut down the entire network
• Only suitable for small size network
• Data collision may occur because data transmitted will travel in both directions

RING TOPOLOGY

Layout:

• All computers and devices are arranged along a acable that forms a closed loop

Data Transfer:

• Data transmitted on a ring network travels from one device to another around the entire ring in one direction
• When a device sends data, the data travels to each computer on the ring until it reaches its destination

Advantages:

• Can span a larger network than a bus network
• Cable faults are easily located, making troubleshooting easier
• The transmission of data is relatively simple as data travels in one direction only

Disadvantages:

• More difficult to install compared to bus network
• Failure of any cable or node will affect the operation of the entire network
• Slower data transmission as the data sent will go through all the nodes

STAR TOPOLOGY

Layout:

• All computers and devices are connected to a central device (hub or switch)
• Hub or switch are devices that provide a common central connection point for nodes on the network

Data Transfer:

• All data that transfer from one node to another passes through the hub or switch
• The hub takes a signal that comes from any device and passes it to other devices in the network

Advantages:

• Failure of one node will not affect the entire network
• Devices can be added to or removed from the network with little or no disruption to the network
• Easy to identify problems, making troubleshooting easier

Disadvantages:

• Failure of hub or switch will shut down the entire network
• Requires more cable than the other topologies
• More expensive due to the cost of the hub/switch

HOLIDAY CNY

CUTI BUAT APA???

Hi dan assalamualaikum.

Okay so i want to share some of my activities during holidays. Basically pada hari cuti saya akan pergi bercuti dengan family and keluar lepak dengan kawan. So matrik cuti CNY and midsem pada 14 Februari hingga 24 Februari yang lalu.

Saya pulang dari matrik pada hari Rabu petang. Then malamtu pulak bertolak ke Kuala Lumpur bersama keluarga. Sepanjang perjalanan ke Kuala Lumpur saya dan kakak terpaksa bergilir memandu sebab abah dan umi menaiki kereta lain. Even penat tapi takpelah sebab bukan selalu dapat luangkan masa dengan family. So pagi tu kami sampai KL tapi sebelum check in hotel, kami pergi ke Putrajaya kerana abah dan umi ada urusan kerja, Pada tengah hari macamtu baru kami pergi check in dekat Hotel Concorde. Pada sebelah malamnya kami semua meluangkan masa bersama dengan pergi makan di restoran yang berada di belakang hotel. So time ni la kami dapat berborak sepuasnya. Pada pukul 11 malam saya lepak sorang-sorang dekat lobby. Eh tetiba terserempak dengan Mia Ahmad dengan suami. Apa lagi selfie la kahkahkahh...

So pada pagi esoknya kami breakfast sama-sama. Lepas breakfast kami terjun swimming pool yela sebab nak bakar lemak sikit. Pukul 11 macamtu kami check out and ronda KL. Sempat jugak shopping dekat MyTown yang baru bukak dekat Ikea Cheras. Then petang tu baru bertolak balik.

Then hari cuti yang masih berbaki tu pulak saya keluar lepak dengan kawan-kawan. Yela dah lama tak jumpa, Lagipun semua balik cuti so time ni la nak bersua muka pun huhuhu.

Hari Ahad pula pergi makan-makan dekat seoul garden dengan family and sepupu. Haa yang ni lagi lama tak jumpa rindunyaa dekat semua. Lepas balik dari seoul garden kawan datang rumah ajak lepak dekat jubli emas so apa lagi terjah laa. Then malamtu pergi food festival dekat Jitra semata-mata nak makan ice kepal milo viral tu.

Hari berganti hari eh dah nak kena balik matrik dah hmm murung la hahaha *melawak je k*, So cuti tu memang best lah kan sebab dapat dimanfaatkan sepenuhnya sebab budak matrik dah takdak cuti panjang lagi dah. Tunggu cuti sem pulak. Lastly, good luck everyone for this upcoming pspm 2 huhuhu