VCE Data Analytics U4O2 Word Scramble: Evaluating security with CIA and security controls to Disaster recovery plans (Modules 44–79)
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Word scramble
Unscramble the letters and write each key term on the line.
1
ATDA TA ETSR
Data stored on a device, server or backup, not moving. Protect it with encryption (disk or database) and access control, so a stolen laptop or backup is unreadable.
2
ATDA NI NATRSTI
Data moving across a network, such as email or web traffic. It is protected by encrypting it (e.g. HTTPS or a VPN) so intercepted data cannot be read.
3
SHAH NFUONCIT
A one-way function that turns any input into a fixed-length value. The same input always gives the same hash, a tiny change gives a very different one, and it cannot be reversed.
4
AHHS OCOASPIRNM
Hash the file before and after transfer. If both hashes (checksums) match, the data is unchanged. A different hash shows the file was altered or tampered with, so its integrity is lost.
5
TCHAM ITEUQNHEC OT OJB
Choose symmetric encryption for stored data, asymmetric keys to swap keys and sign, and hashing to check integrity and store passwords. Justify the choice.
6
IESRTSDA COEEYRRV ALPN
A plan made in advance that sets out who does what to protect people and restore data and systems after a disruption, so downtime is limited.
Answer Key
VCE Data Analytics U4O2 · Modules 44–79
1ATDA TA ETSR → data at rest — Data stored on a device, server or backup, not moving. Protect it with encryption (disk or database) and access control, so a stolen laptop or backup is unreadable.
2ATDA NI NATRSTI → data in transit — Data moving across a network, such as email or web traffic. It is protected by encrypting it (e.g. HTTPS or a VPN) so intercepted data cannot be read.
3SHAH NFUONCIT → hash function — A one-way function that turns any input into a fixed-length value. The same input always gives the same hash, a tiny change gives a very different one, and it cannot be reversed.
4AHHS OCOASPIRNM → hash comparison — Hash the file before and after transfer. If both hashes (checksums) match, the data is unchanged. A different hash shows the file was altered or tampered with, so its integrity is lost.
5TCHAM ITEUQNHEC OT OJB → Match technique to job — Choose symmetric encryption for stored data, asymmetric keys to swap keys and sign, and hashing to check integrity and store passwords. Justify the choice.
6IESRTSDA COEEYRRV ALPN → disaster recovery plan — A plan made in advance that sets out who does what to protect people and restore data and systems after a disruption, so downtime is limited.