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Gemma manages a network for an organisation - Edexcel - GCSE Computer Science - Question 3 - 2020 - Paper 1
Question 3
Gemma manages a network for an organisation. (a) Two computers are assigned the same IP address. Explain why Gemma must change the IP address of one of the computer... show full transcript
Worked Solution & Example Answer:Gemma manages a network for an organisation - Edexcel - GCSE Computer Science - Question 3 - 2020 - Paper 1
Step 1
Explain why Gemma must change the IP address of one of the computers.
Answer
Having two computers with the same IP address causes a conflict on the network. IP addresses must be unique to ensure that each device can be accurately identified and communicated with. When two devices share the same IP address, data packets may be misrouted, leading to unreliable network access and potential disruptions. Therefore, it is crucial for Gemma to change the IP address of one of the computers to maintain network stability.
Step 2
Step 3
Construct an expression to show how many bytes can be transmitted in 10 seconds.
Answer
To find out how many bytes can be transmitted at a rate of 3 Gbps in 10 seconds, we start with the transfer speed in bits. Since 1 gigabit (Gb) equals 1,000,000,000 bits, the expression is:
To convert bits to bytes, we divide by 8 (since there are 8 bits in a byte):
rac{30,000,000,000 ext{ bits}}{8} = 3,750,000,000 ext{ bytes}
Thus, the expression can be stated as:
rac{3 imes 10^9 ext{ bits} imes 10 ext{ seconds}}{8}