1.
Which of the following network topologies contains a backbone which runs the length of the network?
Correct Answer
C. Bus
Explanation
A bus network topology contains a backbone that runs the length of the network. In a bus topology, all devices are connected to a single shared communication line, known as the backbone. This backbone serves as the main communication pathway for all devices on the network. Each device taps into the backbone to send and receive data. This type of topology is commonly used in small local area networks (LANs) and is relatively simple to set up and maintain.
2.
What piece of hardware is usually at the centre of a star network?
Correct Answer
B. Hub
Explanation
In a star network, a hub is typically at the center. A hub is a hardware device that connects multiple devices in a network, allowing them to communicate with each other. It acts as a central point where all the data from connected devices is received and then transmitted to the appropriate destination device. Unlike a router or server, a hub does not perform any intelligent routing or processing of data. It simply forwards the data to all connected devices, making it an ideal choice for a star network where all devices are connected directly to the hub.
3.
If a computer in a star network fails, the network will:
Correct Answer
A. Still work un affected
Explanation
In a star network, each computer is connected to a central hub. If one computer fails, it will not affect the functioning of the other computers in the network. The other computers will still be able to communicate with each other through the central hub. Therefore, the network will still work unaffected by the failure of a single computer.
4.
The main advantages of a star network are:
Correct Answer(s)
A. Cheap to set up
B. Easy to implement
Explanation
The main advantages of a star network are that it is cheap to set up and easy to implement. This means that it is cost-effective and can be quickly and easily installed. The star network also does not require additional hardware, making it a simple and efficient option. However, the given answer does not mention the advantages of processing data very fast or storing more data than other networks, so it is incomplete.
5.
A ring network:
Correct Answer
D. Requires additional software to function efficiently
Explanation
A ring network is a type of network topology where each device is connected to two other devices, forming a circular loop. This configuration allows for efficient data transmission as there are no collisions or bottlenecks. However, to ensure smooth and efficient operation, additional software is required to manage the flow of data and prevent any issues that may arise in the network. This software helps in maintaining the integrity of the ring by monitoring and controlling the data transmission process. Therefore, a ring network requires additional software to function efficiently.
6.
A combination of the bus and star topologies is called a:
Correct Answer
C. Tree network
Explanation
A combination of the bus and star topologies is called a tree network. In a tree network, multiple star topologies are connected together using a bus topology. The central node of each star topology acts as a hub, connecting to other hubs or nodes in a hierarchical structure. This allows for scalability and efficient communication between different segments of the network.
7.
When choosing a network topology to implement it is necessary to consider:
Correct Answer(s)
A. Current hardware
B. Size of the network
C. Budget limitations
D. Need for reliability
E. If network expansion is likley to be required
Explanation
When choosing a network topology, it is important to consider various factors. The current hardware should be taken into account to ensure compatibility and efficient utilization of resources. The size of the network is crucial as it determines the scalability and performance requirements. Budget limitations need to be considered to ensure cost-effectiveness. The need for reliability is essential to maintain uninterrupted network connectivity. Additionally, the possibility of network expansion should be evaluated to accommodate future growth and avoid the need for frequent topology changes.
8.
Which of the following networks will allow an Internet connection?
Correct Answer
E. All of the above
Explanation
All of the mentioned network topologies (Bus, Star, Ring, and Tree) can allow an Internet connection. The Internet can be accessed through any of these network types by connecting the devices within the network to a modem or router that provides Internet connectivity. Therefore, all of the given options are correct.
9.
The Internet is an example of which topology:
Correct Answer
E. Mesh
Explanation
The Internet is an example of a mesh topology because it is a network where all devices are connected to every other device. In a mesh topology, each device has a direct connection to every other device, creating multiple paths for data to travel. This redundancy allows for increased reliability and fault tolerance, as if one connection fails, data can still be routed through other paths. The Internet functions in a similar way, with data being transmitted through various routes and nodes to reach its destination.
10.
What is the full form of WAN?
Correct Answer
A. Wide area network
Explanation
WAN stands for Wide Area Network. A wide area network is a network that spans a large geographical area, such as multiple cities or even countries. It connects multiple local area networks (LANs) together, allowing devices in different locations to communicate with each other. WANs are typically used by organizations to connect their branch offices or remote locations to a central network, enabling efficient data sharing and communication between different sites.