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