3.1.8

Question 1

Why can the speed of data transmission across a network vary?

Answer 1

The speed of data transmission can vary due to several factors:

• Network Traffic: High traffic on the network can slow down transmission speeds.
• Error Frequency: Interference can cause errors, which may require retransmissions, slowing down data transfer.
• Server Load: A server might be managing multiple client connections, so it might prioritize sending smaller packets at higher speeds instead of larger packets at slower speeds.
• Client Reception Speed / Bandwidth: Data transmission speed may be adjusted to match the client’s ability to receive data.

or

The speed of data transmission across a network can vary due to factors like network bandwidth, network congestion, distance between devices, and hardware limitations (e.g., router or cable quality). Other factors include interference and the type of connection (wired or wireless).

Question 2

What are the secondary causes that vary the speed of data transmission?

Answer 2

Time of the day, distance, and infrastructure.