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WorksheetsOCR GCSE Computer Science Variety Quiz 3
Total questions: 12
Worksheet time: 6mins
Which of the following storage technologies has the fastest access speed?
Solid State
Magnetic
Optical
Imaginary
Which of the following is an advantage of optical storage
Discs are easily portable
Discs are very durable
Discs can be rewritten as many times as you like
Discs can be used to create plasma in a microwave if you don't care about personal safety
Which of the following storage methods would be best suited to a weekly server backup?
SSD
HDD
Magnetic Tape
copying out the binary by hand onto paper
Which of the following is NOT valid hexadecimal?
AA
00
16
3G
what is the value in denary of the LAST BYTE of the following hexadecimal number: 03FF4A36AB04
4
12
154
256
Which of the following CPUs would be best for use in a low power embedded system used to automatically turn lights on and off?
4.5GHz, 12-cores, 8MB cache
20MHz, 1 core, no cache
1GHz, dual core, 256Mb cache
5GHz, quad core, 2MB cache
Which of the following CPUs would be fastest at running a single-threaded program?
4.5GHz, 12-cores, 8MB cache
20MHz, 1 core, no cache
1GHz, dual core, 256Mb cache
5GHz, quad core, 2MB cache
What is the name of the register which stores the results of calculations made by the CPU?
ALU
Accumulator
MDR
MAR
What is the purpose of the CPU cache?
Temporarily stores frequently accessed and recently accessed data and instructions in order to speed up execution of the CPU
Stores all of the program data in order to prevent the CPU from constantly accessing the RAM
When the RAM is full, the cache is used as virtual memory, storing less frequently used information and swapping out withe the contents of RAM in order to add extra memory
According to Wu-Tang affiliate Raider Ruckus, "cache rules everything around me"
Which of the following are ADVANTAGES of a star network topology?
Easy to add new nodes
Easy to locate errors
If a node fails, the rest of the network continues to run
Cheap to set up
What does the following description describe:
"A computer network in which a central machine handles the administration of all the other machines on the network, including user access levels, speed restrictions and security"
Client/server network
Star Network
Peer to Peer network
Mesh network
What does Shinji need to do? (select all that apply)
Get in the robot
Stop crying
Leave Asuka alone
Prevent the entire world turning into orange goo
