McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Science in Information Technology TY (BSc IT) , Bachelor of Science in Information Technology (BSc IT) .
| 1. |
Message_____ means that the data must arrive at the receiver exactly as sent. |
| A. | confidentiality |
| B. | integrity |
| C. | authentication |
| D. | none of the above |
| Answer» B. integrity | |
| 2. |
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 the above |
| Answer» C. authentication | |
| 3. |
A(n) ________function creates a message digest out of a message. |
| A. | encryption |
| B. | decryption |
| C. | hash |
| D. | none of the above |
| Answer» C. hash | |
| 4. |
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 the above |
| Answer» B. session | |
| 5. |
The ________ criterion ensures that a message cannot easily be forged. |
| A. | one-wayness |
| B. | weak-collision-resistance |
| C. | strong-collision-resistance |
| D. | none of the above |
| Answer» B. weak-collision-resistance | |
| 6. |
A(n) _____ is a trusted third party that assigns a symmetric key to two parties. |
| A. | kdc |
| B. | ca |
| C. | kdd |
| D. | none of the above |
| Answer» A. kdc | |
| 7. |
A witness used in entity authentication is ____________. |
| A. | something known |
| B. | something possessed |
| C. | something inherent |
| D. | all of the above |
| Answer» D. all of the above | |
| 8. |
A _______ message digest is used as an MDC. |
| A. | keyless |
| B. | keyed |
| C. | either (a) or (b) |
| D. | neither (a) nor (b) |
| Answer» A. keyless | |
| 9. |
A(n)______ creates a secret key only between a member and the center. |
| A. | ca |
| B. | kdc |
| C. | kdd |
| D. | none of the above |
| Answer» B. kdc | |
| 10. |
________ 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 the above |
| Answer» B. entity authentication | |
| 11. |
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) |
| Answer» A. conventional; digital | |
| 12. |
If _________ is needed, a cryptosystem must be applied over the scheme. |
| A. | integrity |
| B. | confidentiality |
| C. | nonrepudiation |
| D. | authentication |
| Answer» B. confidentiality | |
| 13. |
Digital signature provides ________. |
| A. | authentication |
| B. | non-repudiation |
| C. | both (a) and (b) |
| D. | neither (a) nor (b) |
| Answer» C. both (a) and (b) | |
| 14. |
Digital signature cannot provide ________ for the message. |
| A. | integrity |
| B. | confidentiality |
| C. | non-repudiation |
| D. | authentication |
| Answer» B. confidentiality | |
| 15. |
To authenticate the data origin, one needs a(n) _______. |
| A. | mdc |
| B. | mac |
| C. | either (a) or (b) |
| D. | neither (a) nor (b) |
| Answer» A. mdc | |
| 16. |
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 the above |
| Answer» A. message digest | |
| 17. |
Challenge-response authentication can be done using ________. |
| A. | symmetric-key ciphers |
| B. | asymmetric-key ciphers |
| C. | keyed-hash functions |
| D. | all of the above |
| Answer» D. all of the above | |
| 18. |
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 the above |
| Answer» C. strong-collision-resistance | |
| 19. |
A digital signature needs a(n)_________ system. |
| A. | symmetric-key |
| B. | asymmetric-key |
| C. | either (a) or (b) |
| D. | neither (a) nor (b) |
| Answer» B. asymmetric-key | |
| 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 the above |
| Answer» C. ca | |
| 21. |
Message ________ means that the sender and the receiver expect privacy. |
| A. | confidentiality |
| B. | integrity |
| C. | authentication |
| D. | none of the above |
| Answer» A. confidentiality | |
| 22. |
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) |
| Answer» B. challenge-response | |
| 23. |
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 |
| Answer» B. entity authentication | |
| 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 the above |
| Answer» A. one-wayness | |
| 25. |
A(n) ______ is a hierarchical system that answers queries about key certification. |
| A. | kdc |
| B. | pki |
| C. | ca |
| D. | none of the above |
| Answer» C. ca | |
| 26. |
_________ means that a sender must not be able to deny sending a message that he sent. |
| A. | confidentiality |
| B. | integrity |
| C. | authentication |
| D. | nonrepudiation |
| Answer» D. nonrepudiation | |
| 27. |
A hash function must meet ________ criteria. |
| A. | two |
| B. | three |
| C. | four |
| D. | none of the above |
| Answer» B. three | |
| 28. |
__________ 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 the above |
| Answer» B. kerberos | |
| 29. |
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 the above |
| Answer» C. fixed; one-time | |
| 30. |
_________ operates in the transport mode or the tunnel mode. |
| A. | ipsec |
| B. | ssl |
| C. | pgp |
| D. | none of the above |
| Answer» A. ipsec | |
| 31. |
IKE creates SAs for _____. |
| A. | ssl |
| B. | pgp |
| C. | ipsec |
| D. | vp |
| Answer» C. ipsec | |
| 32. |
______ provides either authentication or encryption, or both, for packets at the IP level. |
| A. | ah |
| B. | esp |
| C. | pgp |
| D. | ssl |
| Answer» B. esp | |
| 33. |
One security protocol for the e-mail system is _________. |
| A. | ipsec |
| B. | ssl |
| C. | pgp |
| D. | none of the above |
| Answer» C. pgp | |
| 34. |
IKE is a complex protocol based on ______ other protocols. |
| A. | two |
| B. | three |
| C. | four |
| D. | five |
| Answer» B. three | |
| 35. |
IPSec defines two protocols: _______ and ________. |
| A. | ah; ssl |
| B. | pgp; esp |
| C. | ah; esp |
| D. | all of the above |
| Answer» A. ah; ssl | |
| 36. |
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) |
| Answer» A. transport | |
| 37. |
______ is the protocol designed to create security associations, both inbound and outbound. |
| A. | sa |
| B. | ca |
| C. | kdc |
| D. | ike |
| Answer» D. ike | |
| 38. |
A _______network is used inside an organization. |
| A. | private |
| B. | public |
| C. | semi-private |
| D. | semi-public |
| Answer» A. private | |
| 39. |
SSL provides _________. |
| A. | message integrity |
| B. | confidentiality |
| C. | compression |
| D. | all of the above |
| Answer» D. all of the above | |
| 40. |
The Internet authorities have reserved addresses for _______. |
| A. | intranets |
| B. | internets |
| C. | extranets |
| D. | none of the above |
| Answer» D. none of the above | |
| 41. |
An _________ is a network that allows authorized access from outside users. |
| A. | intranet |
| B. | internet |
| C. | extranet |
| D. | none of the above |
| Answer» C. extranet | |
| 42. |
_________ 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 the above |
| Answer» A. ipsec | |
| 43. |
IKE uses _______. |
| A. | oakley |
| B. | skeme |
| C. | isakmp |
| D. | all of the above |
| Answer» D. all of the above | |
| 44. |
IPSec uses a set of SAs called the ________. |
| A. | sad |
| B. | sab |
| C. | sadb |
| D. | none of the above |
| Answer» C. sadb | |
| 45. |
An ________ is a private network that uses the Internet model. |
| A. | intranet |
| B. | internet |
| C. | extranet |
| D. | none of the above |
| Answer» A. intranet | |
| 46. |
______ is actually an IETF version of _____. |
| A. | tls; tss |
| B. | ssl; tls |
| C. | tls; ssl |
| D. | ssl; slt |
| Answer» C. tls; ssl | |
| 47. |
In ______, there is a single path from the fully trusted authority to any certificate. |
| A. | x509 |
| B. | pgp |
| C. | kdc |
| D. | none of the above |
| Answer» A. x509 | |
| 48. |
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 the above |
| Answer» B. cipher suite | |
| 49. |
A ______ provides privacy for LANs that must communicate through the global Internet. |
| A. | vpp |
| B. | vnp |
| C. | vnn |
| D. | vpn |
| Answer» D. vpn | |
| 50. |
_______ uses the idea of certificate trust levels. |
| A. | x509 |
| B. | pgp |
| C. | kdc |
| D. | none of the above |
| Answer» B. pgp | |
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