Netw4009 Lecture 7 Exam
- 1.Making sure that the data has not been changed unintentionally, due to an accident or malice, is:
- A.
Integrity
- B.
Confidentiality
- C.
Availability
- D.
Auditability
- 2.Which of the following is responsible for MOST of the security incidents?
- A.
Equipment failure
- B.
Software failure
- C.
Personnel
- D.
Hackers
- 3.Network security aims to provide several key services, which are?
- A.
Data integrity, data strategy, data mining
- B.
Data and system availability, data storage, data confidentiality
- C.
Data integrity, data and system availability, data confidentiality
- D.
Data strategy, data integrity, data center.
- 4.Which option is a desirable feature of using symmetric encryption algorithms?
- A.
They are often used for wire-speed encryption in data networks
- B.
They are based on complex mathematical operations and can easily be accelerated by hardware
- C.
They offer simple key management properties
- D.
They are best used for one-time encryption needs.
- 5.MD5 is _______ algorithm
- A.
An encryption
- B.
A decryption
- C.
A hash
- D.
A public key
- 6.When an email user accesses his account, he fills the password field. This is required for
- A.
Identification
- B.
Authentication
- C.
Hashing
- D.
None of the above
- 7.Non-repudiation refers to ______________
- A.
Detect modified messages
- B.
Sender cannot later falsely deny sending a message. Receiver cannot falsely deny receiving it.
- C.
Keep information secret.
- D.
Receiver can verify who sender was.
- 8.RSA encryption is _____________ ; whereas RSA decryption is ______________
- A.
Slow, fast
- B.
Slow, slow
- C.
Fast, fast
- D.
Fast, slow
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