True/False Asymmetric or public key encryption systems use two keys, _________ and _________. Temporary acquired permission, Files Flaws are first divided into _______ and _______ flaws. 59. B. Ans: key-value, 10. 64 bit, DES Ans: Trusted software. These two keys are used together to encrypt and decrypt a message. A digital signature must meet two primary conditions ________ and ________. B. The security association that applies to a given IPSec header is determined by the packets ______ and the _______ in the packet header. C. Vernam Cipher, Repeating A. A. C. threat, needful B. BSC Time C. Public key, Public key D. Decryption, Corruption. Security policy must be realistic. A. Ans: Vulnerability, 3. C. Beta A. Jamia Indian Defence Personnel Assignments, Quality Management MCQ – TQM multiple choice questions answers, Project Management MCQs with Answers pdf notes, Java Multiple Choice Questions with answers, Production and Operations Management MCQ with answers, Multiple Choice Questions on Personality Development. If you are looking for a reviewer in datacom, topic in Electronics Systems and Technologies (Communications Engineering) this will definitely help you before taking the Board Exam. C. Key exchange and Authentication Secondary state C. Password, Files B. Negative wiretapping Combination C. Variation D. Binomial variation. Public key cryptography is also known asÂ -----cryptography. C. WANs Ans: permutation. D. Computer data storage, 3. Ans: Features, assurance, 49. D. RSA, 25. Two keys C. AES, Implementation Both private key and public key are kept by the receiver ... MCQ 101: In public key cryptography, a key that decrypts the message. DES 58. C. Both random and sequential ______ operation provides diffusion. D. Limited use of an object, 30. Ans: Confidentiality and Integrity, 63. Which of the following is a type of wiretapping? Ans: Firewall, 81. A. View WProject 9.docx from NETWORKING 200-125 at Georgia Institute Of Technology. D. Private key, Private key, 64. Three A _____ is a cryptographic algorithm that uses two related keys, a public key and a private key. Asymmetric cryptography is one of these methods and is a more advanced version of symmetric cryptography, which we will explain first. Ans: Symmetric encryption, 77. The individual who is creating the digital signature uses their own private key to encrypt signature-related data; the only way to decrypt that data is with the signer's public … B. NULL D. Ethical, Users, 53. Public key encryption uses multiple keys. D. DCCH Channel, 35. C. Variation The DES algorithm is fixed for a _________ bit key. 19. True/False D. Mix Column, 23. Your email address will not be published. B. B. Hacktivism A. Denning True/False Book A. A. Digital signatures work because public key cryptography depends on two mutually authenticating cryptographic keys. Confidentiality and content forgery are often handled by____________. 14. B. Asymmetric encryption is the process of using a public key from a public/private key pair to encrypt plaintext, and then using the corresponding private key to decrypt the ciphertext. B. Digital signature, Sender C. Team level activities Limit object sharing The key used to encrypt data is called the _____ key, while the key used to decrypt data is called the _____ key. Memory protection is usually performed by hardware mechanisms, such as ______ or _____. A. B. ________ identifies and organizes the security activities for a computing system. D. Security Associations(SA), 68. User information _________ is a rearrangement of the characters of the plaintext into columns. The encrypted text is also called _________ . Especially at scale, this is extremely important and … To maintain or improve reliability and performance, routings between two endpoints are______. C. Exponential cypher, Users This is the MCQ in Cryptography from the book Data Communications and Networking by Behrouz A. Forouzan. Amateur or cracker A. Book Cipher, Repeating __________ are ideally suited to digital signatures. A. Modularity One method of cryptography is symmetric cryptography (also known as secret key cryptography or private key cryptography). B. policies, procedures Testing, Trapdoors Ans: Discrete logarithm problem, 28. Ans: Ciphertext, 9. B. Byte Substitution Risk leverage is the difference in risk exposure divided by_________. C. Polymorphism Private key encryption, or symmetric encryption, uses smaller keys that are easier to compute with. D. La Padula, 47. AES algorithm uses _____ for encryption and decryption. D. ASymmetric encrypted e-mail dilemma, 38. 2. A. C. Three keys C. Authentication One key is used to encrypt data, while another is used to decrypt data. Internal security When implementing control, sometimes, we can rely on ______ procedures or policies among _____. B. Authentication C. Symbol 3. Asymmetric encryption is also known as _ . Confusion, Diffusion B. Printable Program b. graphical coding c. HTML d. cryptography. Which of the following allows a function to be performed on more than one node? 56 bit, AES Primary state MCQ Multiple Choice Questions on Information Technology Act, MCQ on IT Act 2000, Also useful for MCQ on Legal Aspects of Business LAB, Business Law subjects. Key Diffusion The most obvious problem of ______ is preventing one program from affecting the memory of other programs. Symmetric encryption can protect against forgery by a recipient. Risk assessment is a technique supporting _________. Download Cryptography and Network Security MCQ with answers pdf, Your email address will not be published. Ans: Dual Signature. Risk Exposure D. None. The most common symmetric algorithms in use today include … Unlike regular operating systems, trusted systems incorporate technology to address both ____ and _____ A private key is a tiny bit of code that is paired with a public key to set off algorithms for text encryption and decryption. Ans: Firewalls, 56. Ans: paging, segmentation, 50. Virus attaches itself to program and propagates copies of it to other programs. C. Key Ans: Specific transport protocol type, 82. D. Gamma, 41. Conventional cryptography is also known as _____ or symmetric-key encryption. These keys can be used by people, devices, and applications. This site uses Akismet to reduce spam. Stream encryption, Block encryption Enhanced C. Both (A) and (B) Ans: Public key encryption systems, 31. C. DES Ans: Multiprogramming, 43. B. One key D. Key Construction, 21. Ans: Intentional, inadvertent, 33. B. __________ and _________ are disadvantages of stream encryption. C. Constant, Trust B. C. Modification, Legitimate A. Confidentiality can be achieved with __________. Ans. A. AH The question paper contains 40 multiple choice questions with four choices and students will have to pick the correct one (each carrying ½ marks.). Specifically, the most common form of encryption used today involves a public key, which anyone can use to encrypt a message, and a private key (also known as a secret key), which only one person should be able to use to decrypt those messages. Original plaintext message Answer & Solution Discuss in Board Save for Later. C. Users ________ is another way to segment the network. A _______is an association between a client and a server. A. Trigram A. Denning Ans: Cipher suite, 68. The management of SAs can be either manual or through an Internet standard called________. Ans: Linear programming. B. Ans: Tunnel mode and Transport mode. Ans: Stateful inspection firewall, 84. A. Deletion, legitimate Symmetric cryptography is best suited for bulk encryption because it is much faster than asymmetric cryptography. Ans: True, 29. B. Symmetric encryption Avoid the risk Tunnel Diffie-Hellman Scheme is based on ___________. D. Accounting and Personal activities, 12. d. 5. 13. In a ______, the frequency of appearance of letter groups can be used to match up plaintext letters that have been separated in a ciphertext. Symmetric key cryptography is also known as shared key cryptography. To understand asymmetric cryptography it is important to first understand the meaning of cryptography. Ans: Cryptanalyst. A. A. MCQ on Cryptography and Network Security with Answers, Multiple Choice Questions are available for IT examination preparation. D. Multi headed device, 49. In Deffie-Hellman scheme, each user selects a _______ and computes a ______. C. Symmetric algorithm, Asymmetric algorithm ________ runs under the user’s authority. _____ is a weakness in the security system. The property of hiding implementation and other design decisions of a component is called___. B. Ans: PKI. Any action that compromises the security of information owned by an organization is called_____. D. MANs, 39. B. Also known as conventional cryptography, symmetric cryptography requires the sender and the receiver of confidential information to share a key. Procedure for _____ is C = E(k1, D(k2, E(k1,m))). D. Logarithmic decipher, Senders, 63. __________ provides proof-of-data origin on received packets. _____ is a characteristic that often grows over time, in accordance with evidence and experience. Asymmetric Key Cryptography: Under this system a pair of keys is used to encrypt and decrypt information. A. Sequential D. Informative wiretapping, 33. _______ is a device that filters all traffic between a protected or “inside” network and a less trustworthy or “outside” network. B. D. Six, 19. A. LANs C. Kyoto D. Customers, Trapdoors, 66. Required fields are marked *. D. Circular, 69. A key is a some long binary number. Ans: Military security. Few attacks, high Double DES, Two B. Logarithmic cypher, Senders The primary disadvantage of packet filtering routers is a combination of ______ and ______. Stream encryption More modern branches of cryptography are symmetric and asymmetric cryptography, which are also known as secret key and public key cryptography, respectively.. A. Permutation One of the major drawbacks of the symmetric system is _____. Cryptography and Network Security MCQ Set-I. C. Book Cipher Triple-DES uses keys of _____ in _____ operations. There are two keys in this approach and one is basically the public key and any user can access the information. Positive wiretapping How many users can use a secret key? C. La Bell Public key system is best used for _____. Ans: False, 74. Risk Mitigation The advantage of this approach is in not … C. Limited access sharing Two C. Biba The__________ refers to moving beyond the single organization to an inter-organizational hierarchy. Ans: Data Encryption Standard, 76. B. Temporary acquired permission, Memory __________ is often used as a safe way for general users to access sensitive data. Ans: Method of key exchange, 78. D. Security, 36. Because the users share a common secret key S, the Diffie-Hellman scheme is an example of an asymmetric key exchange protocol. C. Object A. C. Users, Trapdoors Ans: Security planning, Cryptography and Network Security MCQ with answers Set-II, Customer Relationship Management MCQ with Answers. The encrypted email processing can integrate with ordinary e-mail packages, so a person can send ___________messages. A. D. Vernam Cipher, 31. Who formalized the structure of military security model? The _______ has established a service for assessing the security of commercial web sites. Major symmetric algorithms are … D. Privacy, 74. Ans: Masquerade, 4. C. Asymmetric. C. Ciphering, Corruption Private Key cryptography is also known asÂ -----cryptography. DES, Implementation You can protect the IP datagrams by using one of the IPSec protocol elements, the ___ or the___. Learn how your comment data is processed. Triple-DES procedure is C = E (k1, D (k2, E (k1,m))). Modification, Execution B. Columnar Transposition 1 . Summary. A. TCP-IP B. Ans: ISAKMP, 65. A. A. Public key, Private key ________ is a generic protocol that supports many different key exchange methods. Ans: True, 44. B) the Data Encryption Standard is a symmetric key encryption system. B. C. Two The two keys have the property that deriving the private key from the public key is computationally infeasible. D. Central Processing Unit (CPU), 29. C. Both (A) and (B) Modification, Trapdoors D. Digital Signature, 45. D. employees, interference, 5. Symmetric algorithms use ___________ key(s). Ans: columnar transposition, 11. Ans: Public key, 27. Controls, encouraged by managers and administrators, are called __________. Ans: Digital signature, 80. 59. D. None of the above, 51. C. Connection state Time taken to apply an algorithm in ______ is proportional to the length of the message. RSA is an _____which does not differentiate between the function of public and private keys of____. Public and private keys are paired for secure communication, such as email. _________is an association between a client and server. Ans: Digital signatures, 30. Session __________ give us a reliable means to prove the origin of data or code. C. Four Advantages and Disadvantages of symmetric key cryptography Ans: Administrative controls. A private key, also known as a secret key, is a variable in cryptography that is used to decrypt and sometimes encrypt messages. C. NSH D. Key, 18. The purpose of computer security is to prevent ______ from doing the _______. A. A. attacks, harm An application proxy gateway is also called as ______. Modification, Illegitimate Repetitiveness of _____ algorithm, makes it suitable for ______ on a single-purpose chip. B. B. A. Ans: Integrity, 5. C. Two Come in pairs, Symmetric Ans: Six, 34. B. Encipherment Complexity A. This chapter looked into the meaning of cryptography and some of its origins, including the Caesar Cipher. C. Passive and Active wiretapping A. Input message in Cryptography is called; (a) Plain text (b) Cipher Text (c) Plain and cipher (d) None of the above ( ) 2. D. Intrusion, 2. Private key is used to. If the system is exposed to modification during execution, then trapdoors are a vulnerability. C. Security A. Hash Pairing two cryptographic keys in this manner is also known as asymmetric cryptography. A packet filtering gateway controls access to packets based on packet address (source or destination) or _____. Ans: Vulnerability, 7. 2. B. attackers, damage C. Asymmetric encryption A. A. D. RSA and VAN, 22. Asymmetric encryption relies on asymmetric cryptography, also known as public key cryptography. If the system is exposed to _______during execution, then _______ are vulnerability. D. All attacks, high, 75. ________ is the difference in risk exposure divided by the cost of reducing the risk. A. C. Diagram B. Cryptographic hash function Answer: Option B. Ans: True, 55. As the name suggests, it involves 2 people using the same private key to both encrypt and decrypt information. Eguardian offers online courses & top quality writing services with accuracy, incorporates formatting standards and as per your desire. D. community standards, policies, 6. A public key is used for encryption and a private key is used for decryption. Thanks for visiting our website, if you like please share the post MCQ on Cryptography and Network Security with Answers on social media. The public key is distributed worldwide and is truly public as its name suggests. B. B. Encryption, Corruption A proxy gateway is a________. A. Decryption Add Subkey A private key is a tiny bit of code that is paired with a public key to set off algorithms for text encryption and decryption. Ans: Encryption, 73. D. Risk Metrics, 40. A Computer attacker may be either ___________ involves operations that use hacking techniques against a target’s with the intent of disrupting normal operations or to achieve political or social ends without causing serious damage. ... Public-key encryption is also known as _____ . A. Digital signatures are based on public key cryptography, also known as asymmetric cryptography. Diagrams D. Four, 20. Ans: True, 23. C. Transport The other key is private and can only be accessed by administrator. Ans: ISAKMP, OAKLEY and SKEME, 64.