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Budayasa
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Questions: 13 | Attempts: 5,108

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• 1.

### Which of the following network topologies contains a backbone which runs the length of the network?

• A.

Star

• B.

Tree

• C.

Bus

• D.

Ring

C. Bus
Explanation
A bus network topology contains a backbone that runs the length of the network. In a bus network, all devices are connected to a single cable called the backbone. This backbone acts as a central communication pathway, allowing data to be transmitted between devices. The devices in a bus network are connected to the backbone through drop lines, and they can communicate with each other by sending data onto the backbone. This type of topology is commonly used in Ethernet networks and is relatively easy to set up and expand.

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• 2.

### What piece of hardware is usually at the centre of a star network?

• A.

Modem

• B.

Hub

• C.

Router

• D.

Server

B. Hub
Explanation
A hub is usually at the center of a star network. In a star network, all devices are connected to a central hub, which acts as a central point for communication. The hub receives signals from one device and then broadcasts them to all other devices connected to it. This allows for easy communication between devices in the network.

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• 3.

### If a computer in a star network fails, the network will:

• A.

Still work un affected

• B.

Work with limited capabilities

• C.

Cease to function

• D.

None of the above

A. Still work un affected
Explanation
In a star network, each computer is connected to a central hub or switch. If one computer fails in a star network, it will not affect the functioning of the other computers in the network. The remaining computers will still be able to communicate with each other through the central hub or switch. Therefore, the network will still work unaffected by the failure of one computer.

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• 4.

### The main advantages of a star network are:

• A.

Cheap to set up

• B.

Easy to implement

• C.

• D.

Process data very fast

• E.

Can store more data than other networks

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 easily installed and managed. The star network also requires additional hardware, which can enhance its functionality and performance. However, the statement "Process data very fast" and "Can store more data than other networks" are not correct advantages of a star network.

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• 5.

### A ring network:

• A.

Is fast

• B.

Is cheap

• C.

Is reliable

• D.

Requires additional software to function efficiently

D. Requires additional software to function efficiently
Explanation
A ring network requires additional software to function efficiently because it operates by passing data in a circular manner from one node to the next until it reaches its destination. This requires a specific protocol or software that manages the flow of data and ensures that it is transmitted correctly and efficiently. Without this additional software, the ring network may experience issues such as data collisions or inefficient routing, which can greatly affect its performance and reliability.

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• 6.

### A combination of the bus and star topologies is called a:

• A.

Combo network

• B.

Starbus network

• C.

Tree network

• D.

Ring network

C. Tree network
Explanation
A combination of the bus and star topologies is called a tree network because it resembles a hierarchical structure with a central node (root) connected to multiple nodes (branches) which further connect to other nodes (sub-branches). In a tree network, the central node acts as a hub, similar to the star topology, while the branches resemble the bus topology. This combination allows for better scalability, fault tolerance, and ease of management in the network.

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• 7.

### When choosing a network topology to implement it is necessary to consider:

• A.

Current hardware

• B.

Size of the network

• C.

Budget limitations

• D.

Need for reliability

• E.

If network expansion is likley to be required

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. 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 ensure a stable and secure network. Additionally, the possibility of future network expansion is important to accommodate growth and avoid costly upgrades or replacements.

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• 8.

### Which of the following networks will allow an Internet connection?

• A.

Bus

• B.

Star

• C.

Ring

• D.

Tree

• E.

All of the above

E. All of the above
Explanation
All of the mentioned network topologies (Bus, Star, Ring, and Tree) can allow an Internet connection. Each of these topologies can be used to connect multiple devices and enable communication between them. The devices connected in these networks can access the Internet through a router or a gateway device that provides the connection to the Internet. Therefore, all of the mentioned network topologies are capable of facilitating an Internet connection.

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• 9.

### The Internet is an example of which topology:

• A.

Bus

• B.

Star

• C.

Ring

• D.

Tree

• E.

Mesh

E. Mesh
Explanation
A mesh topology is a network design where each device is connected to every other device in the network. This allows for multiple paths for data to travel, increasing redundancy and fault tolerance. The Internet can be considered an example of a mesh topology because it is a global network of interconnected devices, such as computers, servers, and routers, where data can be routed through multiple paths to reach its destination.

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• 10.

### This topology has a central connection point, which is normally a device such as a hub, switch, or router.

• A.

Star

• B.

Bus

• C.

Ring

• D.

Mesh

• E.

Hierarchical or Extended Star

A. Star
Explanation
This topology is known as a star because it has a central connection point, usually a device like a hub, switch, or router. In a star topology, all devices are connected directly to this central point, allowing for easy management and troubleshooting. This central point also helps to prevent network congestion as each device has its own dedicated connection.

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• 11.

### In a ________ topology, hosts are connected in a physical ring or circle. Because the ring topology has no beginning or end, the cable does not need to be terminated.

• A.

Ring

• B.

Star

• C.

Bus

• D.

Mesh

• E.

Hierarchical or Extended Star

A. Ring
Explanation
In a ring topology, hosts are connected in a physical ring or circle. Each host is connected to two other hosts, forming a closed loop. This type of topology allows data to flow in only one direction, from one host to the next in the ring. Because the ring has no beginning or end, the cable does not need to be terminated.

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• 12.

### The ____ topology connects all devices to each other.

• A.

Mesh

• B.

Ring

• C.

Star

• D.

Bus

• E.

Tree

A. Mesh
Explanation
Mesh topology connects all devices to each other in a decentralized manner. In a mesh network, every device is directly connected to every other device, creating multiple paths for data transmission. This redundancy ensures high reliability and fault tolerance since if one connection fails, alternative paths can still be used. Mesh topology is commonly used in large-scale networks where reliability and robustness are crucial, such as in military or critical infrastructure systems.

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• 13.

### In a ___ topology, each computer connects to a common cable.

• A.

Bus

• B.

Star

• C.

Ring

• D.

Mesh

• E.

Tree

A. Bus
Explanation
In a bus topology, each computer connects to a common cable. This means that all the devices are connected in a linear manner, with each device being able to transmit and receive data on the same cable. The advantage of this topology is that it is simple and easy to implement, as well as cost-effective. However, a disadvantage is that if the main cable fails, the entire network can be affected.

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