A key advantage of the group protection approach is its ease of implementation. Ans: Cryptographic, 41. On the upper layer, a protocol for initial authentication and transfer of encryption keys is called_______. True/ False The space factor when determining the efficiency of algorithm is measured by A. 1. Symmetric encryption can protect against forgery by a recipient. counter (CTR) 9. Ans: Authenticity, non-repudiability, 75. 9. Ans: Confidentiality and Integrity, 63. __________ is an undocumented entry point to a module. Ans: National Computer Security Association (NCSA), 66. Ans: Intentional, inadvertent, 33. Cryptography is the art of __________. 1) You are supposed to use hill cipher for encryption technique. ________ is a process created to enable users to implement public-key cryptography. Ans: True. A) Last in first out B) First in last out C) Last in last out ... Data Structures and Algorithms Multiple Choice Questions and Answers :-61. "The input to the encryption algorithm is the XOR of the next 64 bits of plaintext and the preceding 64 bits of ciphertext" is a description of the _____ mode of operation. A packet filtering gateway controls access to packets based on packet address (source or destination) or _____. Algorithm and Flowcharts MCQs Set-3 Contain the randomly compiled multiple choice Questions and answers from various reference books and Questions papers for those who is preparing for the various competitive exams and interviews. In cryptography, a key is a piece of information (a parameter) that determines the functional output of a cryptographic algorithm.For encryption algorithms, a key specifies the transformation of plaintext into ciphertext, and vice versa depending on the decryption algorithm. Ans: False, 74. In SET _________ is used to link two messages that are intended for two different recipients. Ans: Security plan, 86. Cryptography Basics Multiple Choice Questions and Answers. Ans: True, 29. Ans: Secure Electronic Transaction (SET), 72. _______ and _______ address external security threats. The inadvertent flaws fall into _________ categories A digital signature must meet two primary conditions ________ and ________. _______ cannot protect against forgery by a recipient, since both sender and recipient share a common key. Asymmetric key is also called: This worksheet/quiz combo quickly tests your level of understanding of RSA encryption. Practice these MCQ questions and answers for preparation of various competitive and entrance exams. The columnar transposition and other transpositions are examples of ___________. Ans: ISAKMP, 65. Ans: Firewalls, 56. The public key algorithm uses ___________. Ans: Dynamic, 54. Which of the following data structure is non-linear type? Ans: Tunnel mode and Transport mode. _______ is a weakness in the security system. Ans: Encapsulating Security Payload (ESP), Authentication Header (AH). Ans: Bastion host, 83. The International Data Encryption Algorithm (IDEA), originally called the Improved Proposed Encryption Standard (IPES), was designed by James Massey of ETH Zurich under a research contract with the Hasler Foundation, now Ascom Tech AG ,and was first discussed in 1991. In a(n) _____, the key is called the secret key. Ans: Malicious code, 35. Learn how your comment data is processed. Ans: Cipher suite, 68. Ans: secret writing, 8. About This Quiz & Worksheet. The data encryption algorithm developed by IBM for NBS was based on _________. Cryptography questions and answers with explanation for interview, competitive and entrance test Symmetric algorithms use ___________ key(s). 46. An asymmetric-key (or public-key) cipher uses MCQ. Ans: Administrative controls. Ans: Alert protocol, 69. Ans: Digital signatures, 30. ___ are mutually agreed-upon code words, assumed to be known only to the user and the system. Unlike regular operating systems, trusted systems incorporate technology to address both ____ and _____ 14. ... international data encryption algorithm (b) private data encryption algorithm (c) internet data encryption algorithm (d) none of the mentioned. ________ is another way to segment the network. Ans: Backdoor, 40. MCQ on Cryptography and Network Security with Answers, Multiple Choice Questions are available for IT examination preparation. Ans: Six, 34. Ans: Discrete logarithm problem, 28. Ans: AES, 24. AES is a __________ algorithm. Here, we have a set of multiple-choice questions and answers (quiz) on ciphers in Cryptography (basic concepts of Cryptography Techniques and different types of ciphers). The process of changing the plaintext into the ciphertext is referred to as encryption. _________ can be used to distribute other keys. 70. ________ runs under the user’s authority. Counting the minimum memory needed by the algorithm 1) What is the block size of plain text in SHA- 512 algorithm? Filed Under: Filed Under: Multiple Choice Questions, Network Security Tagged With: Tagged With: A data center is secured with 3 outer gates - Og1 , A fake email posing as a legitimate email from bank is , A group having 30 members uses Symmetric Key Encryption for message transmission. Private Key (Symmetric) Cryptographic Algorithm Ans: Integrity, 5. The _______ has established a service for assessing the security of commercial web sites. Separation in an operating system cannot occur in several ways. Which of the following is a valid encryption technique? In _____________ separation, processes conceal their data and computations in such a way that they are unintelligible to outside processes. Ans: Risk leverage, 87. Risk assessment is a technique supporting _________. This section focuses on "Data Mining" in Data Science. True/False Ans: Specific transport protocol type, 82. The security of conventional encryption depends on the major two factors: The Encryption algorithm In _____________, each piece of information is ranked at a particular sensitivity level, such as unclassified, restricted, confidential, secret, or top secret. _______ is a device that filters all traffic between a protected or “inside” network and a less trustworthy or “outside” network. Ans: columnar transposition, 11. An application proxy gateway is also called as ______. A security policy should not be comprehensive. Attempt a small test to analyze your preparation level. Ans: A public key, a private key, 26. 1.Which one is DES? Encrypted e-mail messages always carry a digital signature, so the _____ and _____ of the sender is assured. 17. ________ identifies and organizes the security activities for a computing system. The military security model is a representative of a more general scheme, called a ________. ________ is a process that drives the rest of the security administration. PGP stands for __________. Ans: Trust, 51. _________ is a person who attempts to break a cypher text message to obtain the original plaintext message. Ans: Trapdoor, 39. Once the ciphertext is produced, it may be transmitted. An algorithm in encryption is called _____ Algorithm Procedure Cipher Module. D) Tree. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews. A combination of an encryption algorithm and a decryption algorithm is called a _____. a) Chosen plaintext attack b) Chosen cipher text c) Brute Force Attack d) Man in the middle attack 10. You will be quizzed on how it works and examples of it in use. In the SSL Protocol, each upper layer message if fragmented into a maximum of __________ bytes. Practice test for UGC NET Computer Science Paper. Empty Text Cipher text Plain Text Simple Text The Secure Shell Connection Protocol Message exchange has the fist phase as “Opening a Channel” and it sends a message with parameters-. Ans: Key management protocol, 62. In this set of Solved MCQ on Searching and Sorting Algorithms in Data Structure, you can find MCQs of the binary search algorithm, linear search algorithm, sorting algorithm, Complexity of linear search, merge sort and bubble sort and partition and exchange sort. Ans: one. Your email address will not be published. 71. 12. The most obvious problem of ______ is preventing one program from affecting the memory of other programs. Ans: PKI. Differential Cryptanalysis can be mounted on a) DES encryption algorithm b) AES encryption algorithm c) RSA encryption algorithm d) Deffie-Hellman key exchange algorithm 9. Your email address will not be published. Confidentiality and content forgery are often handled by____________. Ans: Data Encryption Standard. Thanks for visiting our website, if you like please share the post MCQ on Cryptography and Network Security with Answers on social media. Asymmetric or public key encryption systems use two keys, _________ and _________. Ans: Linear programming. 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. Ans: A node, a host, 52. Answers 1, 3 and 4 are correct. Memory protection is usually performed by hardware mechanisms, such as ______ or _____. credit: Behrouz A. Forouzan ©2013 www.FroydWess.com. Ans: 64, 21. __________ is often used as a safe way for general users to access sensitive data. Ciphertext depends on the original plaintext message, the algorithm, and the _________. Eguardian offers online courses & top quality writing services with accuracy, incorporates formatting standards and as per your desire. Ans: Vulnerability, 3. C) Stacks. DATA STRUCTURES and ALGORITHMS MCQs. A directory of Objective Type Questions covering all the Computer Science subjects. MCQ 228: An encryption algorithm transforms the plaintext into. You are provided with the following matrix, Ans: Masquerade, 4. _____ is a characteristic that often grows over time, in accordance with evidence and experience. Processor and memory B. Encryption is done by using public key algorithm called DSA with the use of private key of the sender and data is converted into unreadable form called Cipher text. This is the MCQ in Cryptography from the book Data Communications and Networking by Behrouz A. Forouzan. Ans: Encryption, 6. The size of the enciphered text should be no larger than the text of the original message. When one entity pretends to be a different entity, we call it ________. The security association that applies to a given IPSec header is determined by the packets ______ and the _______ in the packet header. Submitted by Monika Sharma, on February 02, 2020 . Posted in: Computer Science MCQs Tagged: Computer Network MCQs, Data Communication MCQs. True/False cipher is an algorithm for performing encryption or decryption View Answer 10. Ans: True, 89. Network Security MCQ Questions. Which is the lowest level in the SSH protocol stack? The ________ is likely to be the commercial-grade symmetric algorithm of choice for years, if not decades. DES encrypting the plaintext as blocks of __________ bits. This is the MCQ in Internet Security: IPSec, SSL/TLS, PGP, VPN, and Firewalls from the book Data Communications and Networking by Behrouz A. Forouzan. Because the users share a common secret key S, the Diffie-Hellman scheme is an example of an asymmetric key exchange protocol. Ans: Features, assurance, 49. Ans: Pair of keys (two keys). The DES algorithm is fixed for a _________ bit key. Ans: Destination IP address, Security parameter index (SPI). ________ is a generic protocol that supports many different key exchange methods. Ans: Simplicity, complexity, 85. Ans: Multiprogramming, 43. Ans: Block cyphers. A single computing system in a network is often called _____ and its processor (computer) is called _____. Ans: Ciphertext, 9. A session symmetric key between two parties is used. Ans: Encryption, 73. You can protect the IP datagrams by using one of the IPSec protocol elements, the ___ or the___. True/False Ans: Lucifer, 20. True/ False Counting the maximum memory needed by the algorithm B. Cryptography Solved MCQs Questions Answers Let us see the important solved MCQs of Cryptography. Ans: permutation. Confidentiality can be achieved with __________. MCQ on Cryptography and Network Security with Answers, Multiple Choice Questions are available for IT examination preparation. Ans: True, 23. The primary disadvantage of packet filtering routers is a combination of ______ and ______. 4.1.4 Decryption Decryption [18],[27] is the process of converting encrypted data back into its original form called plaintext, so that it … Which one is the strong attack mechanism? A key advantage of the group protection approach is its ____________. Because a transposition is a rearrangement of the symbols of a message, it is also known as________. Ans: Unforgeable, authentic, 32. B) Lists. The questions asked in this NET practice paper are from various previous year papers. 18. 13. CPU Scheduling Algorithms ALL PROGRAMMING A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Ans: symmetric key encryption, 25. Any action that compromises the security of information owned by an organization is called_____. 61. A _______is an association between a client and a server. Ans: Public key encryption systems, 31. 4. Ans: Security planning, 91. __________ are ideally suited to digital signatures. A directory of Objective Type Questions covering all the Computer Science subjects. Stack is also called as. 47. 1 . An algorithm in encryption is called _____ a) Algorithm b) Procedure c) Cipher d) Module Answer: c Explanation: An algorithm used in encryption is referred to as a cipher. Ans: Firewall, 81. When the data must arrive at the receiver exactly as they were sent, its called. A control is an action, device, procedure, or technique that removes or reduces__________. _______ means that assets can be modified only by authorized parties or only in authorized ways. Cryptography - MCQs Answers. __________ give us a reliable means to prove the origin of data or code. 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. Ans: Vulnerability, 7. Ans: Cryptanalyst. Required fields are marked *. The encryption process consists of an algorithm and a key. Unlike ECB and CBC modes, _____ mode requires only the implementation of the encryption algorithm and not the decryption algorithm. To maintain or improve reliability and performance, routings between two endpoints are______. __________ is a feature in a program by which someone can access the program other than by the obvious, direct call, perhaps with special privileges. The management of SAs can be either manual or through an Internet standard called________. 1. 58. 15. Multiple choice questions on Cryptography and Network Security topic Cryptography Basics. Ans: Security planning, Cryptography and Network Security MCQ with answers Set-II, Customer Relationship Management MCQ with Answers. Ans: SSL Handshake Protocol, 67. Ans: False, 42. Ans: Lattice, 48. In this section of Data Communication and Networking - Cryptography MCQ (Multiple Choice) Based Questions and Answers,it cover the below lists of topics.All the Multiple Choice Questions and Answers (MCQs) have been compiled from the book of Data Communication and Networking by The well known author behrouz forouzan. Submitted by Monika Sharma, on March 22, 2020 . These Multiple Choice Questions (MCQ) should be practiced to improve the Cyber Security skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. PGP encrypts data by using a block cipher called. MCQ on Cryptography Quiz pdf Download Test 1 MCQ. DES stands for _____________. True / False SSL uses the _________for reporting errors and abnormal conditions. Note: Check your works. This site uses Akismet to reduce spam. Input message in Cryptography is called; (a) Plain text (b) Cipher Text (c) Plain and cipher (d) None of the above ( ) 2. These Data Mining Multiple Choice Questions (MCQ) should be practiced to improve the skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. Ans: Redundancy, physical controls, 90. An algorithm in encryption is called _____________, In the User Authentication Protocol, when the client requests for authentication, then the first byte ( in this format) has decimal value –. Ans: Data Encryption Standard, 76. MD5 Algorithms are useful because it is easier to compare and store these smaller hashes than to store a large text of variable length. Select one: a. RSA Digital Cryptographic Algorithm b. The two keys have the property that deriving the private key from the public key is computationally infeasible. Ans: Method of key exchange, 78. The question paper contains 40 multiple choice questions with four choices and students will have to pick the correct one (each carrying ½ marks.). a) Block cipher b) Bit cipher c) Stream clipher d) None of the above Ans: 2. Ans: ISAKMP, OAKLEY and SKEME, 64. Ans: Trusted software. This section focuses on "Network Security" in Cyber Security. Ans: Digital signature, 80. True/False _____ is an open encryption and security specification designed to protect credit card transactions on the Internet. Ans: False, 53. Controls, encouraged by managers and administrators, are called __________. Encrypted e-mail messages always carry a _____, so the authenticity and non-reputability of the sender are assured. Tags: Datacom, MCQs. Ans: Military security. A straight permutation cipher or a straight P-box has same number of inputs as MCQ. Ans: Dual Signature. Ans: Separate access, 57. 16. The way a network is configured, in terms of nodes and connections, is called the network firewall. Flaws are first divided into _______ and _______ flaws. The modes of operation of IPSec are ________ and ________. Security policy must be realistic. Triple-DES procedure is C = E (k1, D (k2, E (k1,m))). Here, we have a set of multiple-choice questions and answers (quiz) on Cryptography Techniques of Block Cipher. ESP seeks to provide ______ and _______by encrypting data to be protected and placing the encrypted data in the data portion of the IP ESP. Impersonation is a more significant threat in a wide area network than in a local one. The combination of key exchange, hash, and encryption algorithm for each SSL session is defined as______. Forouzan: MCQ in Cryptography. True/False 52. 36. Which one of the following is not a higher –layer SSL protocol. _________ is a rearrangement of the characters of the plaintext into columns. A directory of Objective Type Questions covering all the Computer Science subjects. 19. The encrypted text is also called _________ . The principal difference between S/MIME and PGP is _________. Ans: Ease of implementation. ________ is the difference in risk exposure divided by the cost of reducing the risk. Up to now, no weakness could be found except the insufficient length of the key (8 bytes, expanded to 32 bytes in 3DES). IKE is considered a hybrid protocol because it combines (and supplements) the functions of three other protocols _______ and ________. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Ans: Session. Diffie-Hellman Scheme is based on ___________. DES stands for ____________. _________ enables such an analyst to infer data that should be kept confidential in the database. 59. Data Mining MCQs Questions And Answers. The SSH Connection Protocol runs on top of the SSH Transport Layer Protocol and assumes that a secure authentication connection is in use. Ans: key-value, 10. The key is a value independent of the plaintext. A) Strings. _________ maintains state information from one packet to another in the input stream. Ans: Stateful inspection firewall, 84. Questions from Previous year GATE question papers, UGC NET Previous year questions and practice sets. This GATE exam includes questions from previous year GATE papers. 3DES is a modified version the DES-algorithm (dates Encryption standard), which was introduced in 1974 and became ANSI-standard. Ans: True. Two main measures for the efficiency of an algorithm are A. Ans: 56, 22. Ans: False, 88. Virus attaches itself to program and propagates copies of it to other programs. Ans: True, 55. Security features that control that can access resources in the OS. True /False Ans: Pretty Good Privacy, 79. 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. Complexity and capacity C. Time and space D. Data and space Answer:- C 53. Check complete range of Computer Knowledge MCQs. Ans: Public key, 27. Ans: Symmetric encryption, 77. Ans: True, 44. 60. 38. Sanfoundry Global Education & Learning Series – Data Structures & Algorithms. A _____ is a cryptographic algorithm that uses two related keys, a public key and a private key. Cryptography and Network Security Objective type Questions and Answers. To practice all areas of Data Structures & Algorithms, here is complete set of 1000+ Multiple Choice Questions and Answers. 512 bits; 1024 bits; … 37. True/False Ans: Passwords, 45. Ans: Security attack, 2. A substitution cipher substitutes one symbol with MCQ. _________ can be used to implement a VPN. Ans: paging, segmentation, 50. 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