An oceanographic research vessel is transmitting a high-resolution sonar mapping database to a shore-based server via a satellite link.
The technician calculates the duration, in seconds, required to transmit the database over this connection.
1 Mbps=10002 bps 1 \text{ Mbps} = 1000^2 \text{ bps} 1 Mbps=10002 bps 1 MB=10242 bytes 1 \text{ MB} = 1024^2 \text{ bytes} 1 MB=10242 bytesThe satellite connection has an upload speed of 15 Mbps.
The database file size is 375 MB.
Construct an expression to show the number of seconds it will take to transmit the database file. Show your unit conversions clearly. You do not need to perform the final calculation.
Practise Edexcel GCSE Computer Science Networks with exam-style questions for GCSE Computer Science. 100 questions covering Why computers are networked, Types of network (LAN, WAN), Structure of the internet, Wired and wireless connectivity performance, Network speeds and transmission calculations, Network and email protocols, The 4-layer TCP/IP model, and Network topologies (bus, star, mesh), matched to the Edexcel GCSE Computer Science (1CP2) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.