Learning: 6.6 Explain common uses of encryption.

Question 1

What option on iOS protects email and other apps’ data at-rest by using encryption?

Answer 1

The “Data Protection” option

Question 2

What type of encryption is used by mobile applications to encrypt data in-transit?

Answer 2

Public Key Infrastructure (PKI)
Public Key Infrastructure (PKI) is an implementation of asymmetric encryption used by mobile applications for encrypting data in-transit.

Question 3

What password length is acceptable for an ordinary user account?

Answer 3

Nine to twelve characters

Question 4

What type of password attack involves comparing encrypted passwords against a predetermined list of possible password values?

Answer 4

A dictionary attack

Question 5

How can an administrator help make sure that a stolen password cannot be misused indefinitely?

Answer 5

Configuring a password expiration period

Question 6

Which scenario is an example a stealing a password via a brute-force attack?

Answer 6

An attacker uses password-cracking software to attempt every possible alphanumeric password combination.

Question 7

What is a weakness of password managers?

Answer 7

A user must trust that the application storing the passwords is secure and cannot be cracked.