IS3230 CHAPTER 13

Question 1

The process of confirming the identity of a user is called ___.

Answer 1

AUTHENTICATION

Question 2

An entity, usually a trusted third party, that issues digital certificates is called ___.

Answer 2

CERTIFICATE AUTHORITY (CA)

Question 3

The certificate authorities list of invalid certificates is called ___.

Answer 3

CERTIFICATE REVOCATION LIST (CRL)

Question 4

Applications or IT services delivered over the Internet rather than in a typical client/server model on a local area network is called ___.

Answer 4

CLOUD SERVICES

Question 5

Ensuring that only the intended recipient can read the data is called ___.

Answer 5

CONFIDENTIALITY

Question 6

The hardware or software system that transforms the clear text into cipher text is called ___.

Answer 6

CRYPTOSYSTEM

Question 7

A protocol or an algorithm allowing two users to exchange a secret key over insecure communications is called ___.

Answer 7

DIFFIE-HELLMAN KEY EXCHANGE

Question 8

This provides a stronger cryptographic result with a shorter key is called ___.

Answer 8

ELLIPTIC CURVE CRYPTOSYSTEM (ECC)

Question 9

The process of applying an algorithm to clear-text (or plain-text) data, resulting in a cipher text is called ___.

Answer 9

ENCRYPTION

Question 10

Ensuring the data has not been altered is called ___.

Answer 10

INTEGRITY

Question 11

The range of values that construct a crypto system key is called ___.

Answer 11

KEYSPACE

Question 12

The concept of ensuring an originator cannot refute the validity of a statement or document is called ___.

Answer 12

NON-REPUDIATION

Question 13

A framework that consists of programs, procedures, and security policies that employs public key cryptography and the X.509 standard (digital certificates) is called ___.

Answer 13

PUBLIC KEY INFRASTRUCTURE (PKI)

Question 14

An entity that is responsible for the registration and initial authentication of certificate subscribers is called ___.

Answer 14

REGISTRATION AUTHORITY (RA)

Question 15

A public key crypto system based on factoring large numbers that are a product of two prime numbers is called ___.

Answer 15

RSA ASYMMETRIC ENCRYPTION ALGORITHM

Question 16

1. PKI is also know as public key encryption.

TRUE OR FALSE

Answer 16

FALSE

Question 17

2. Which of the following is an encryption key size length commonly used with public key algorithms?
3. 127
4. 255
5. 1.023
6. 2.048

Answer 17

2.048

Question 18

3. Which of the following are examples of symmetric algorithms? (Select two)
4. RSA
5. 3DES
6. AES
7. Diffle-Hellman

Answer 18

3DES

AES

Question 19

4. Which of the following are examples of asymmetric algorithms? (Select two)
5. RSA
6. 3DES
7. AES
8. Diffle-Hellman

Answer 19

RSA

Diffle-Hellman

Question 20

5. Asymmetric encryption is faster than symmetric encryption.
   TRUE OR FALSE

Answer 20

FALSE

Question 21

6. A symmetric encryption algorithm provides which security services? (Select three)
7. Confidentiality
8. Identity
9. Authentication
10. Authorization
11. Non-repudiation

Answer 21

Confidentiality
Identity
Authentication

Question 22

7. The RSA key length is ___.

Answer 22

1.024 bits

Question 23

8. Which of the following is the standard for certificates?
9. X510
10. Certificate authority
11. X.509
12. Certificate validation

Answer 23

Certificate authority

Question 24

9. Which of the following terms is the range of values that construct a crypto system key?
10. Key length
11. Key values
12. Keyspace
13. Key construction

Answer 24

Keyspace

Question 25

10. Digital signature provide which of the following? (Select two)
11. Confidentiality
12. Integrity
13. Authentication
14. Authorization
15. Non-repudiation

Answer 25

Integrity

Non-repudiation