ITN 262 EXAM 1 QUESTIONS AND
CORRECT ANSWERS NEW
UPDATE
What is Denial of Service? - Answer- Denial of service is an attack that blocks access to
a system by other users.
What is Social Engineering? - Answer- Social engineering is an attack in which
someone tries to trick a system administrator into divulging a password.
In a password system, the total number of possible passwords is called the - Answer-
SEARCH SPACE.
What is Authentication? - Answer- Authentication associates an individual with an
identity.
What is the most recent listed hash algorithm? - Answer- SHA-512
What are the three types of tokens? - Answer- • One-time password tokens • Challenge-
response tokens • Passive tokens
Which risks are associated with a weak threat? - Answer- • Simple trial and error
password guessing • Shoulder surfing • Searching for a written password
What is Security through Obscurity? - Answer- Security through obscurity is hiding an
object to prevent others from finding it.
An algorithm is a type of - Answer- PROCEDURE.
What is symmetric encryption? - Answer- Symmetric encryption is an encryption
algorithm that uses the same key for both encryption and decryption.
What is a transposition cipher? - Answer- A transposition cipher rearranges the text of a
message.
Explain symmetric cryptography. - Answer- To use symmetric cryptography, the sender
and the receiver must share a secret key.
What is Enigma? - Answer- Enigma was a rotor machine used in WWII to encrypt
messages.
CORRECT ANSWERS NEW
UPDATE
What is Denial of Service? - Answer- Denial of service is an attack that blocks access to
a system by other users.
What is Social Engineering? - Answer- Social engineering is an attack in which
someone tries to trick a system administrator into divulging a password.
In a password system, the total number of possible passwords is called the - Answer-
SEARCH SPACE.
What is Authentication? - Answer- Authentication associates an individual with an
identity.
What is the most recent listed hash algorithm? - Answer- SHA-512
What are the three types of tokens? - Answer- • One-time password tokens • Challenge-
response tokens • Passive tokens
Which risks are associated with a weak threat? - Answer- • Simple trial and error
password guessing • Shoulder surfing • Searching for a written password
What is Security through Obscurity? - Answer- Security through obscurity is hiding an
object to prevent others from finding it.
An algorithm is a type of - Answer- PROCEDURE.
What is symmetric encryption? - Answer- Symmetric encryption is an encryption
algorithm that uses the same key for both encryption and decryption.
What is a transposition cipher? - Answer- A transposition cipher rearranges the text of a
message.
Explain symmetric cryptography. - Answer- To use symmetric cryptography, the sender
and the receiver must share a secret key.
What is Enigma? - Answer- Enigma was a rotor machine used in WWII to encrypt
messages.
