BitTorrent Protocol and Peer-to-Peer File Sharing Quiz

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What is the purpose of a torrent in the BitTorrent protocol?

To store the actual file being shared

To encrypt the file during sharing

To act as a central server for all the connected peers

To contain metadata about the file being shared (correct)

In the BitTorrent protocol, what does a seed refer to?

A piece of the file being shared

A peer who has downloaded the file completely and is sharing it with others (correct)

The central server that manages all connected peers

The tracker that connects peers to each other

How are files shared in a BitTorrent network among peers?

By emailing the file to all interested peers

Through a central server that stores all shared files

By creating a torrent file with metadata and connecting to a tracker server (correct)

Directly from one peer to another without any intermediary

What is the function of a tracker in a BitTorrent network?

To connect peers to each other and provide information on where to find pieces of a file Signup and view all the answers

Why are files broken into multiple pieces in the BitTorrent protocol?

To make downloading faster for all peers involved Signup and view all the answers

What term is used to refer to a group of peers connected together in a BitTorrent network?

'Swarm' Signup and view all the answers

What is the impact of a leech on a swarm?

Negative impact by downloading more data than sharing Signup and view all the answers

How is the availability of a torrent defined in a swarm?

Number of complete copies of torrent contents Signup and view all the answers

What does a lurker do in a peer-to-peer swarm?

Downloads files without contributing new content Signup and view all the answers

What is considered poor behavior in the swarm community?

Logging off once the file download is complete Signup and view all the answers

How is a peer's ratio in a swarm calculated?

$\text{Ratio} = \text{amount of data uploaded} / \text{amount of data downloaded}$ Signup and view all the answers

What is expected from a peer after fully downloading a file in a swarm?

To continue seeding until all peers have received the whole file Signup and view all the answers

What is the main purpose of the BitTorrent protocol?

To rearrange file pieces for downloading Signup and view all the answers

How does a firewall contribute to network security?

By deciding to allow or block specific network traffic based on security rules Signup and view all the answers

What role does a VPN serve in network security?

To establish an encrypted connection over the Internet from a device to a network Signup and view all the answers

In the context of network security, what is an intrusion detection system (IDS) responsible for?

Monitoring network traffic for suspicious activities Signup and view all the answers

Why is it important for the BitTorrent protocol to rearrange file pieces out of order?

To increase download speed by prioritizing certain pieces Signup and view all the answers

What distinguishes a tracker from peers in a BitTorrent swarm?

Trackers provide information about where to find other peers in the swarm Signup and view all the answers