This homework session covers the option networking unit. This is not the optional unit we are studying this year. However, you might find it useful for a recap of the networking topic in Computer Systems.
Again this optional.
Ian King will be running a Scholar homework session this Wednesday 28th Jan at 7.30 pm til around 8.15.
The topic is Storing numeric data (binary, two’s complement and floating point notation)
You can access the session, which will last about an hour at
The Higher Prelim will be in the Hall from 1:30- 3:00 on Wednesday the 14th of January 2015. Make sure you bring a black pen and a calculator.
Q1 Explain the difference between LAN’s and WAN’s with reference to transmission media, bandwidths and geographical spread. (2)
Q2 Explain the difference between a mainframe computer with terminals and a network of computers. (2)
Q3 Explain the differences between client server and peer-to-peer networks. (2)
Q4 On a LAN describe the functions of file, print and web servers. (2)
Q5 Describe a bus topology in terms of nodes and channels. Describe the consequences of failure of a node and a channel. (2)
Q6 Describe the functions of a hub, switch and router on a network with particular reference to the differences between a hub and a switch. (3)
Q7 Explain why a network computer needs a network interface card (NIC). (1)
Q8 Explain briefly why networks are becoming increasingly widespread. (2)
Q9 Explain how a virus may be spread to a computer and how it then may take effect. (2)
Q10 The access a user has on the network depends on their permissions. Explain what is meant by permissions giving as an example the permissions you may have on your own folder and a shared folder on the network. (2)
Total Marks – 20
Scholar will be presenting a Scholar webina
r on Wednesday 3rd December. 7.30 pm to 8.15
This one is on Procedures, Functions and Parameters.
Q1 A peripheral device captures colour images and saves them to memory.
a) Describe how the colour is represented using 24 bits (1)
b) The image is saved with a resolution of 600 dpi. How many pixels are required to save an image of 6” x 4”. Give your answer in MB and show your working. (2)
Q2 Explain how a buffer is used with a peripheral. (2)
Q3 Explain the concept of spooling illustrating your answer with an example. (2)
Q4 State the hardware required in terms of peripherals to set up a computer system to produce a catalogue for a garden centre. The finished catalogue will be taken on electronic media to a printers. (2)
Q5 Justify the choice of two of these devices in terms of resolution, capacity, speed, cost and compatibility. (4)
Q6 Describe the features, uses and advantages of a solid state device such as a USB flash drive. (2)
Q7 a) What is the purpose of an interface? (1)
b) State the factors that have to be resolved by an interface. (2)
Q8 Describe the difference between parallel and serial interfaces (2)
Total marks 20
Q1 What factors can influence the MIP rate of measuring performance? 2
Q2 Explain what is meant by the cycle time with reference to the clock speed. 2
Q3 Explain why two computers rated at the same clock speed may not have an equivalent performance.2
Q4 Explain what is meant by a benchmark test in measuring a computer’s performance and give an example of one such benchmark. 2
Q5 Explain the effect of the width of the data bus on a computer’s performance. 2
Q6 Why is an interface needed to connect peripherals to the system bus? 2
Q7 Describe the standard functions of an interface. 2
Q8 Explain the difference between serial and parallel transmission. 2
Q9 Explain why the increase in the width of the data bus can improve system performance. 2
Q10 Explain why the increase in the width of the address bus can improve system performance. 2
Total Marks 20