Question

QUESTION 2

1. Ensuring that data is genuine, meaning that the sender of the data is who they say they are, that the data received is the data that the sender meant to send, and that the receiver is who they say they are

   	a.	confidentiality
   	b.	authentication
   	c.	non-repudiation
   	d.	integrity

2 points   

QUESTION 3

1. Cryptography method that uses a single key for both encryption and decryption

   	a.	prime factorization
   	b.	asymmetric
   	c.	symmetric
   	d.	message authentication code

2 points   

QUESTION 4

1. Algorithm for key exchange, allows two users to exchange information and use that information to generate a shared, secret key that is never actually transmitted; used by the Internet Key Exchange (IKE) protocol

2 points   

QUESTION 5

1. Result of hashing a message and a shared secret, H(m+s), helps to provide message integrity

2 points   

QUESTION 6

1. A cryptographic technique that allows the creator of a message to prove that they created it, helps to provide authentication, uses public key encryption

2 points   

QUESTION 7

1. Organization that assumes the responsibility for validating identities and certifying public keys

2 points   

QUESTION 8

1. Attack in which falsified DNS replies are sent. An attacker hears a DNS request and then sends DNS replies with bogus A and sometimes NS resource records that are then cached by the requester.

2 points   

QUESTION 9

1. Technique used to find computers that are running a vulnerable application and listening for connections on a particular port. Can also be used to determine all of the ports that a computer is listening on.

2 points   

QUESTION 10

1. In this attack, the attacker will send many TCP SYN packets, but never complete the handshake (by responding to the receiver’s SYN/ACK). This leaves many “half-open” connections on the receiver and can use up all of the receiver’s resources. Legitimate connections will then not be able to be handled.

Answer 1

Answers:

2. Integrity

Integrity means that the data which is send by the Sender to the receiver has not been modified or altered in the transit of the data.

3. Symmetric

In Symmetric key cryptography method same key is used for encryption and decryption of the message.

4. Diffie–Hellman key exchange algorithm

Diffie–Hellman key exchange algorithm is being used by the Internet Key Exchange(IKE) protocol for exchanging the key.

5. TRUE

Hashing a message always provides the better integrity of messages than any other methods.

Note: As per Chegg policy only 4 can be answered in a single post,will post remaining answers in next post.