IGCSE Computer Science Paper 1 Word Scramble: 3.4 Network Hardware (Modules 342–354)
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Word scramble
Unscramble the letters and write each key term on the line.
1
3^22
The number of possible IPv4 addresses (about 4.3 billion). It is too few for every phone and smart device online, so a new version, IPv6, was needed.
2
PVI6 DEADSSR
A 128-bit address written as eight groups of four hex digits separated by colons, e.g. 2001:0DB8:0000:0000:0000:FF00:0042:8329
3
6PIV
A 128-bit address written in hex with colons. It gives vastly more addresses than 32-bit denary IPv4, which solves the shortage of IPv4 addresses.
4
CITTSA PI DESSRDA
An IP address that is set once, usually by hand, and stays the same every time the device connects, so the device always has a predictable address.
5
MYNDIAC PI RDSDSAE
An IP address given to a device automatically by the network each time it connects, so it may change and can later be reused by another device.
6
ACSTTI RO MAINYDC PI
Use static for devices others must always find, like web servers and printers; use dynamic for phones and laptops because it needs less set-up work.
7
EOURRT SSGNIAS PI
A router on a local network gives each device that joins its own IP address automatically, so nobody sets it up by hand. Every device gets a different address.
Answer Key
IGCSE Computer Science Paper 1 · Modules 342–354
13^22 → 2^32 — The number of possible IPv4 addresses (about 4.3 billion). It is too few for every phone and smart device online, so a new version, IPv6, was needed.
2PVI6 DEADSSR → IPv6 address — A 128-bit address written as eight groups of four hex digits separated by colons, e.g. 2001:0DB8:0000:0000:0000:FF00:0042:8329
36PIV → IPv6 — A 128-bit address written in hex with colons. It gives vastly more addresses than 32-bit denary IPv4, which solves the shortage of IPv4 addresses.
4CITTSA PI DESSRDA → static IP address — An IP address that is set once, usually by hand, and stays the same every time the device connects, so the device always has a predictable address.
5MYNDIAC PI RDSDSAE → dynamic IP address — An IP address given to a device automatically by the network each time it connects, so it may change and can later be reused by another device.
6ACSTTI RO MAINYDC PI → static or dynamic IP — Use static for devices others must always find, like web servers and printers; use dynamic for phones and laptops because it needs less set-up work.
7EOURRT SSGNIAS PI → router assigns IP — A router on a local network gives each device that joins its own IP address automatically, so nobody sets it up by hand. Every device gets a different address.