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What is the basis of the modern cryptography?

Choose the best answer (one) and give reason in a few sentences for your choice or not choosing other. Please give a reference. To get the full credit, the reason should be in your own words, not a copy from a reference/internet source. Such a copy will be considered plagiarizing. Remember I have the same access. I may not catch every time but if I catch you may get 0 for the entire assignment. Without a reason, and/or reference as noted you will not get the full credit. Remember have your name on each page

Q1. (4 pts) Businesses are motivated to use cryptography to protect information because

A. information is the most difficult asset to protect

B. information is the asset with the greatest organizational value

C. information is the easiest thing to protect

D. networks and systems are very difficult to protect adequately

Reason: –

Q2. (4 pts) Which of the following is an example of a comprehensive security strategy? ______

A. We already use encryption, so we are safe.

B. We can detect intrusions with our intrusion detection software and have a firewall. These are supplemented by our use of cryptography.

C. . We have security software and hardware, an information security officer, a security budget, employee training, and a disaster recovery system in place.

Reason: –

Q3. (4 pts) What is the basis of the modern cryptography? _________________

A. manipulation of data

B. mathematical principles

C. creating disguises for information

D. none of the above

Reason:

Q4 (4 pts) Buffer overflow can lead to___________

A. Lead to unauthorized access

B. Denial of Service

C. Trojan horses

D. -Password cracking

What are the consequences?

Q5. (4 pts) The Man in the Middle attack be thwarted by

A. By using email

B. Sending message in two parts

C. By encrypting the message

D.  By making it boring

Reason and reference: –

Q6. (4 pts) Which of the following are properties of information?

A. It has evolved from data and is processed data.

B. It has identity.

C. It can be mathematically manipulated

D. A and B

E. A and C

F. A, B and C

No Reason required

Q7 (4 pts) The denial of service is considered as

A. Intrusion threat

B. Session hijacking threat

C. Network threat

D. Operating system threat


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