GCSE Computer Science Paper 2

What is the name of the family of protocols used specifically for wired local area networks?

• TCP/IP

• Ethernet

• SMTP

• IP

What is the protocol used for video streaming?

• UDP

• FTP

• POP3

• HTTP

Which protocol is used to download email to a client machine without deleting it from the server?

• SMTP

• HTTPS

• IMAP

• POP3

What is 1010 0001 is decimal?

• 161

• 165

• 181

• 129

What is 1010 0001 in hexadecimal?

• F1

• 11

• B1

• A1

Which of these is not part of the functionality of reading optical media?

• The laser is shone on to the disk

• The tracking mechanism moves the laser into the correct position over the CD

• Bumps/pits form a spiral from the centre to the outside of the disk;

• Bumps/pits are read as north or south via the laser

Which of these is not part of the functionality for reading a Hard Disk Drive (HDD)?

• Each platter is divided into sectors

• Data is written to \ read from the disk by magnetising \ polarising \ sensing microscopic regions on the disk

• Data spirals out from the centre in one continuous line to the edge

• Read \ write heads (move across the disk to) read and write data

Which of these statements is wrong about components of the CPU?

• A REGISTER is used for controlling the CPU clock

• A BUS is used to transfer data / instructions from one component of the CPU to another

• The CLOCK controls the number of instructions carried out each second and allows the CPU to synchronise operations

• The CONTROL UNIT decodes instructions and controls the fetching and writing of data

What type of storage allows users to store data remotely and is increasingly using solid state memory?

• External Hard Disk

• SD Card

• Cloud Storage

• Smart Phone

Why is hexadecimal used instead of binary?

• Takes up less storage

• Easier to read for humans

• Easier for a CPU to process

• Easier to convert to decimal