APCSP CSN-1.E Network Redundancy and Fault Tolerance

What does it mean for the Internet to be fault-tolerant?

• It can detect and fix all errors in real time

• It can continue to function even if some devices or connections fail

• It eliminates the need for security measures by preventing failures

• It guarantees that no data will ever be lost during transmission

What is the primary purpose of redundancy in a network?

• To make networks more complex and difficult to manage

• To increase efficiency by reducing the number of data transmission paths

• To provide alternative paths in case of failure, improving reliability

• To ensure that only authorized devices can access the network

Which of the following best describes how network redundancy improves fault tolerance?

• By allowing packets to travel multiple paths simultaneously, increasing bandwidth

• By automatically backing up all network data to a secure cloud server

• By forcing all data through a single secure path to prevent failure

• By ensuring that if one path fails, data can still be routed through another available path

How does the Internet handle the failure of a specific device or connection?

• Data transmission halts until the issue is manually resolved

• The failed device automatically restores itself without external intervention

• All devices connected to the Internet will lose access until the issue is fixed

• Data is automatically rerouted through an alternate path, if available

Which of the following best defines network redundancy?

• The elimination of extra network components to reduce costs

• The inclusion of additional components to maintain functionality in case of failure

• A network structure that prevents data from being rerouted

• A backup system that is only activated manually

What is one drawback of incorporating redundancy in a network?

• It makes the network slower and less efficient

• It prevents data from being transmitted securely

• It increases resource costs and infrastructure complexity

• It eliminates the ability to scale the network

Why is redundancy important for the scalability of the Internet?

• It allows the Internet to handle an increasing number of users and devices without failure

• It forces all network traffic through a single controlled path

• It restricts access to the Internet to prevent overuse

• It reduces the number of devices that can connect to the Internet

How does fault tolerance contribute to the reliability of the Internet?

• It guarantees that data packets will always reach their destination without delay

• It requires manual intervention every time a failure occurs

• It ensures that only one route is used to prevent confusion

• It allows the network to continue functioning despite unexpected failures

Which of the following is a real-world example of network redundancy?

• A single connection between a home computer and an Internet service provider

• A network with multiple cables and routers that can route data in different ways

• A device that only connects to the Internet when manually activated

• A server that only functions when one specific data path is available

What role do routing algorithms play in fault tolerance?

• They always select the longest path to avoid congestion

• They allow users to manually select the data path

• They prevent data packets from being rerouted

• They determine alternate paths for data when failures occur