Chapter 8 Data Security, Privacy and Integrity Flashcards

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1
Q

What does data integrity mean?

A

It means that the data is accurate and up to data

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2
Q

What does data privacy mean?

A

It mean that the data is can’t be used by unauthorized users

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3
Q

What does data security mean?

A

Ìt means that if the data is lost or corrupt it can be recovered.

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4
Q

What is a data protection law?

A

It is a law that relates to data privacy penalizing unauthorized users.

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5
Q

What does prerequisite mean?

A

A requirement

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6
Q

Which are the three security threat categories?

A

Internal mismanagement
Natural disasters
Unauthorized entries

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7
Q

What does Internal mismanagement mean?

A

It means that someone an individual has caused and error or a breach.

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8
Q

What are the two uses of system security?

A

Ensure system functionality

Ensure that only authorized users use the system

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9
Q

What does authentication mean?

A

It means the authentication of the users identity.

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10
Q

What does a virus checker do?

A

It carries out regular system scans to detect virus and to remove them or deactivate them.

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11
Q

What is the intrusion detection system?

A

It is a system that will take as input an audit record of system use and look for anomalous use.

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12
Q

Which are the reasons for accidental data loss?

A
A disk or tape gets corrupted 
A disk or tape is destroyed
The system crashes
The files is erased or overwritten by mistake
The location of the file is forgotten
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13
Q

Which are the steps taken against accidental data loss?

A

A full backup is made at regular intervals, perhaps weekly
At least two generations of full backup are kept in storage
Incremental backups are made on a daily basis

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14
Q

Which are the two ways in which you can find out if the right data is entered and how are they different?

A

Firstly, by validation which mean the check of the type of data entered
Secondly, by verification which is the confirmation of the right data entered.

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15
Q

How do we verify data during transfer?

A

By on-bit parity check, but this only works if the number of bits is pair.

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