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Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

This is the Online Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls part 3 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Continue Part III of the Online Practice Quiz

Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

Question 21. ______ provides authentication at the IP level.

A. AH

B. ESP

C. PGP

D. SSL

Question 22. ______ is designed to provide security and compression services to data generated from the application layer.

A. SSL

B. TLS

C. either (a) or (b)

D. both (a) and (b)

Question 23. In the ______ mode, IPSec protects information delivered from the transport layer to the network layer.

A. transport

B. tunnel

C. either (a) or (b)

D. neither (a) nor (b)

Question 24. In _______, the cryptographic algorithms and secrets are sent with the message.

A. IPSec

B. SSL

C. TLS

D. PGP

Question 25. ______ provides either authentication or encryption, or both, for packets at the IP level.

A. AH

B. ESP

C. PGP

D. SSL

Question 26. IPSec in the ______ mode does not protect the IP header.

A. transport

B. tunnel

C. either (a) or (b)

D. neither (a) nor (b)

Question 27. IKE uses _______.

A. Oakley

B. SKEME

C. ISAKMP

D. All of these

Question 28. An ________ is a private network that uses the Internet model.

A. intranet

B. internet

C. extranet

D. None of these

Question 29. _______ provide security at the transport layer.

A. SSL

B. TLS

C. either (a) or (b)

D. both (a) and (b)

Question 30. IPSec defines two protocols: _______ and ________.

A. AH; SSL

B. PGP; ESP

C. AH; ESP

D. All of these

Question 31. SSL provides _________.

A. message integrity

B. confidentiality

C. compression

D. All of these

Question 32. The combination of key exchange, hash, and encryption algorithms defines a ________ for each SSL session.

A. list of protocols

B. cipher suite

C. list of keys

D. None of these

Question 33. In the _______ mode, IPSec protects the whole IP packet, including the original IP header.

A. transport

B. tunnel

C. either (a) or (b)

D. neither (a) nor (b)

Question 34. ______ is the protocol designed to create security associations, both inbound and outbound.

A. SA

B. CA

C. KDC

D. IKE

More Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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6:00 AM

Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

This is the Online Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls part 2 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Continue Part II of the Online Practice Quiz

Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

Question 11. In PGP, to exchange e-mail messages, a user needs a ring of _______ keys.

A. secret

B. public

C. either (a) or (b)

D. both (a) and (b)

Question 12. IPSec uses a set of SAs called the ________.

A. SAD

B. SAB

C. SADB

D. None of these

Question 13. An _________ is a network that allows authorized access from outside users.

A. intranet

B. internet

C. extranet

D. None of these

Question 14. One security protocol for the e-mail system is _________.

A. IPSec

B. SSL

C. PGP

D. None of these

Question 15. Typically, ______ can receive application data from any application layer protocol, but the protocol is normally HTTP.

A. SSL

B. TLS

C. either (a) or (b)

D. both (a) and (b)

Question 16. A ______ provides privacy for LANs that must communicate through the global Internet.

A. VPP

B. VNP

C. VNN

D. VPN

Question 17. In _____, there can be multiple paths from fully or partially trusted authorities.

A. X509

B. PGP

C. KDC

D. None of these

Question 18. The Internet authorities have reserved addresses for _______.

A. intranets

B. internets

C. extranets

D. None of these

Question 19. ________ provides privacy, integrity, and authentication in e-mail.

A. IPSec

B. SSL

C. PGP

D. None of these

Question 20. _________ operates in the transport mode or the tunnel mode.

A. IPSec

B. SSL

C. PGP

D. None of these

More Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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12:00 AM

Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

This is the Online Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls part 1 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Start Part I of the Online Practice Quiz

Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

Question 1. In ______, there is a single path from the fully trusted authority to any certificate.

A. X509

B. PGP

C. KDC

D. None of these

Question 2. ______ was invented by Phil Zimmerman.

A. IPSec

B. SSL

C. PGP

D. None of these

Question 3. The _______ mode is normally used when we need host-to-host (end-to-end) protection of data.

A. transport

B. tunnel

C. either (a) or (b)

D. neither (a) nor (b)

Question 4. IKE is a complex protocol based on ______ other protocols.

A. two

B. three

C. four

D. five

Question 5. IKE creates SAs for _____.

A. SSL

B. PGP

C. IPSec

D. VP

Question 6. A _______ layer security protocol provides end-to-end security services for applications.

A. data link

B. network

C. transport

D. None of these

Question 7. _______ uses the idea of certificate trust levels.

A. X509

B. PGP

C. KDC

D. None of these

Question 8. ______ is actually an IETF version of _____.

A. TLS; TSS

B. SSL; TLS

C. TLS; SSL

D. SSL; SLT

Question 9. A _______network is used inside an organization.

A. private

B. public

C. semi-private

D. semi-public

Question 10. _________ is a collection of protocols designed by the IETF (Internet Engineering Task Force) to provide security for a packet at the network level.

A. IPSec

B. SSL

C. PGP

D. None of these

More Practice Quiz in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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12:00 PM

Practice Quiz in Network Security

This is the Online Practice Quiz in Network Security part 3 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Continue Part III of the Online Practice Quiz

Quiz in Network Security

Question 21. Message_____ means that the data must arrive at the receiver exactly as sent.

A. confidentiality

B. integrity

C. authentication

D. None of these

Question 22. The ________ criterion ensures that a message cannot easily be forged.

A. one-wayness

B. weak-collision-resistance

C. strong-collision-resistance

D. None of these

Question 23. _________ means that a sender must not be able to deny sending a message that he sent.

A. Confidentiality

B. Integrity

C. Authentication

D. Nonrepudiation

Question 24. The _______ criterion states that it must be extremely difficult or impossible to create the message if the message digest is given.

A. one-wayness

B. weak-collision-resistance

C. strong-collision-resistance

D. None of these

Question 25. Digital signature provides ________.

A. authentication

B. nonrepudiation

C. both (a) and (b)

D. neither (a) nor (b)

Question 26. Message _______ means that the receiver is ensured that the message is coming from the intended sender, not an imposter.

A. confidentiality

B. integrity

C. authentication

D. None of these

Question 27. A witness used in entity authentication is ____________.

A. something known

B. something possessed

C. something inherent

D. All of these

Question 28. A(n) ______ is a hierarchical system that answers queries about key certification.

A. KDC

B. PKI

C. CA

D. None of these

Question 29. __________ is a popular session key creator protocol that requires an authentication server and a ticket-granting server.

A. KDC

B. Kerberos

C. CA

D. None of these

More Practice Quiz in Network Security

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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6:00 AM

Practice Quiz in Network Security

This is the Online Practice Quiz in Network Security part 2 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Continue Part II of the Online Practice Quiz

Quiz in Network Security

Question 11. A(n) _____ is a trusted third party that assigns a symmetric key to two parties.

A. KDC

B. CA

C. KDD

D. None of these

Question 12. ________ means to prove the identity of the entity that tries to access the system's resources.

A. Message authentication

B. Entity authentication

C. Message confidentiality

D. None of these

Question 13. A(n) ________function creates a message digest out of a message.

A. encryption

B. decryption

C. hash

D. None of these

Question 14. A ________ signature is included in the document; a _______ signature is a separate entity.

A. conventional; digital

B. digital; digital

C. either (a) or (b)

D. neither (a) nor (b)

Question 15. The _______criterion ensures that we cannot find two messages that hash to the same digest.

A. one-wayness

B. weak-collision-resistance

C. strong-collision-resistance

D. None of these

Question 16. A digital signature needs a(n)_________ system.

A. symmetric-key

B. asymmetric-key

C. either (a) or (b)

D. neither (a) nor (b)

Question 17. A _______ message digest is used as an MDC.

A. keyless

B. keyed

C. either (a) or (b)

D. neither (a) nor (b)

Question 18. A hash function must meet ________ criteria.

A. two

B. three

C. four

D. None of these

Question 19. To authenticate the data origin, one needs a(n) _______.

A. MDC

B. MAC

C. either (a) or (b)

D. neither (a) nor (b)

Question 20. A(n) ________is a federal or state organization that binds a public key to an entity and issues a certificate.

A. KDC

B. Kerberos

C. CA

D. None of these

More Practice Quiz in Network Security

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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12:00 AM

Practice Quiz in Network Security

This is the Online Practice Quiz in Network Security part 1 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Start Part I of the Online Practice Quiz

Quiz in Network Security

Question 1. Digital signature cannot provide ________ for the message.

A. integrity

B. confidentiality

C. nonrepudiation

D. authentication

Question 2. The secret key between members needs to be created as a ______ key when two members contact KDC.

A. public

B. session

C. complimentary

D. None of these

Question 3. A(n)______ creates a secret key only between a member and the center.

A. CA

B. KDC

C. KDD

D. None of these

Question 4. Message ________ means that the sender and the receiver expect privacy.

A. confidentiality

B. integrity

C. authentication

D. None of these

Question 5. In ________ authentication, the claimant proves that she knows a secret without actually sending it.

A. password-based

B. challenge-response

C. either (a) or (b)

D. neither (a) nor (b)

Question 6. A(n) _________ can be used to preserve the integrity of a document or a message.

A. message digest

B. message summary

C. encrypted message

D. None of these

Question 7. In _______, a claimant proves her identity to the verifier by using one of the three kinds of witnesses.

A. message authentication

B. entity authentication

C. message confidentiality

D. message integrity

Question 8. Challenge-response authentication can be done using ________.

A. symmetric-key ciphers

B. asymmetric-key ciphers

C. keyed-hash functions

D. All of these

Question 9. Password-based authentication can be divided into two broad categories: _______ and _______.

A. fixed; variable

B. time-stamped; fixed

C. fixed; one-time

D. None of these

Question 10. If _________ is needed, a cryptosystem must be applied over the scheme.

A. integrity

B. confidentiality

C. nonrepudiation

D. authentication

More Practice Quiz in Network Security

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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Practice Quiz in Cryptography

This is the Online Practice Quiz in Cryptography part 3 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Continue Part III of the Online Practice Quiz

Quiz in Cryptography

Question 21. The ________ is the message after transformation.

A. ciphertext

B. plaintext

C. secret-text

D. None of these

Question 22. The _________ attack can endanger the security of the Diffie-Hellman method if two parties are not authenticated to each other.

A. man-in-the-middle

B. ciphertext attack

C. plaintext attack

D. None of these

Question 23. The ________is the original message before transformation.

A. ciphertext

B. plaintext

C. secret-text

D. None of these

Question 24. ECB and CBC are ________ ciphers.

A. block

B. stream

C. field

D. None of these

Question 25. A(n) ______ algorithm transforms ciphertext to plaintext.

A. encryption

B. decryption

C. either (a) or (b)

D. neither (a) nor (b)

Question 26. In a(n) ________ cipher, a pair of keys is used.

A. symmetric-key

B. asymmetric-key

C. either (a) or (b)

D. neither (a) nor (b)

Question 27. The _______ is a number or a set of numbers on which the cipher operates.

A. cipher

B. secret

C. key

D. None of these

Question 28. DES is a(n) ________ method adopted by the U.S. government.

A. symmetric-key

B. asymmetric-key

C. either (a) or (b)

D. neither (a) nor (b)

Question 29. A modern cipher is usually a complex _____cipher made of a combination of different simple ciphers.

A. round

B. circle

C. square

D. None of these

Question 30. AES has _____ different configurations.

A. two

B. three

C. four

D. five

Question 31. ________ DES was designed to increase the size of the DES key.

A. Double

B. Triple

C. Quadruple

D. None of these

More Practice Quiz in Cryptography

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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6:00 AM

Practice Quiz in Cryptography

This is the Online Practice Quiz in Cryptography part 2 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Continue Part II of the Online Practice Quiz

Quiz in Cryptography

Question 11. A(n) _______is a keyless transposition cipher with N inputs and M outputs that uses a table to define the relationship between the input stream and the output stream.

A. S-box

B. P-box

C. T-box

D. None of these

Question 12. The ________ method provides a one-time session key for two parties.

A. Diffie-Hellman

B. RSA

C. DES

D. AES

Question 13. One commonly used public-key cryptography method is the ______ algorithm.

A. RSS

B. RAS

C. RSA

D. RAA

Question 14. ________ is the science and art of transforming messages to make them secure and immune to attacks.

A. Cryptography

B. Cryptoanalysis

C. either (a) or (b)

D. neither (a) nor (b)

Question 15. The ________ cipher reorders the plaintext characters to create a ciphertext.

A. substitution

B. transposition

C. either (a) or (b)

D. neither (a) nor (b)

Question 16. In a(n) ________ cipher, the same key is used by both the sender and receiver.

A. symmetric-key

B. asymmetric-key

C. either (a) or (b)

D. neither (a) nor (b)

Question 17. A combination of an encryption algorithm and a decryption algorithm is called a ________.

A. cipher

B. secret

C. key

D. None of these

Question 18. In an asymmetric-key cipher, the receiver uses the ______ key.

A. private

B. public

C. either a or b

D. neither (a) nor (b)

Question 19. _______ is a round cipher based on the Rijndael algorithm that uses a 128-bit block of data.

A. AEE

B. AED

C. AER

D. AES

Question 20. A ________ cipher replaces one character with another character.

A. substitution

B. transposition

C. either (a) or (b)

D. neither (a) nor (b)

More Practice Quiz in Cryptography

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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12:00 AM

Practice Quiz in Cryptography

This is the Online Practice Quiz in Cryptography part 1 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Start Part I of the Online Practice Quiz

Quiz in Cryptography

Question 1. In an asymmetric-key cipher, the sender uses the__________ key.

A. private

B. public

C. either (a) or (b)

D. neither (a) nor (b)

Question 2. A(n) ______ is a keyless substitution cipher with N inputs and M outputs that uses a formula to define the relationship between the input stream and the output stream.

A. S-box

B. P-box

C. T-box

D. None of these

Question 3. DES uses a key generator to generate sixteen _______ round keys.

A. 32-bit

B. 48-bit

C. 54-bit

D. 42-bit

Question 4. The Caesar cipher is a _______cipher that has a key of 3.

A. transposition

B. additive

C. shift

D. None of these

Question 5. _________ ciphers can be categorized into two broad categories: monoalphabetic and polyalphabetic.

A. Substitution

B. Transposition

C. either (a) or (b)

D. neither (a) nor (b)

Question 6. The _______ cipher is the simplest monoalphabetic cipher. It uses modular arithmetic with a modulus of 26.

A. transposition

B. additive

C. shift

D. None of these

Question 7. DES has an initial and final permutation block and _________ rounds.

A. 14

B. 15

C. 16

D. None of these

Question 8. In a(n) ________, the key is called the secret key.

A. symmetric-key

B. asymmetric-key

C. either (a) or (b)

D. neither (a) nor (b)

Question 9. A(n) _______ algorithm transforms plaintext to ciphertext.

A. encryption

B. decryption

C. either (a) or (b)

D. neither (a) nor (b)

Question 10. The DES function has _______ components.

A. 2

B. 3

C. 4

D. 5

More Practice Quiz in Cryptography

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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