SSCP Exam Dumps | In what type of attack does an attacker try, from several encrypted messages, to figure out the key used

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Question 207/605

In what type of attack does an attacker try, from several encrypted messages, to figure out the key used in the encryption process?

A. Known-plaintext attack

B. Ciphertext-only attack

C. Chosen-Ciphertext attack

D. Plaintext-only attack

Question List (605q): Question 1: This is a common security issue that is extremely hard to co...; Question 2: A packet containing a long string of NOP's followed by a com...; Question 3: ________, _________, and __________ are required to successf...; Question 4: Which of the following describes a computer processing archi...; Question 5: What can be defined as a list of subjects along with their a...; Question 6: Which of the following is less likely to be used today in cr...; Question 7: The RSA algorithm is an example of what type of cryptography...; Question 8: Which backup method is used if backup time is critical and t...; Question 9: Which conceptual approach to intrusion detection system is t...; Question 10: What does RADIUS stand for?; Question 11: Which of the following is used to monitor network traffic or...; Question 12: Which of the following is most affected by denial-of-service...; Question 13: In which of the following model are Subjects and Objects ide...; Question 14: Controls provide accountability for individuals who are acce...; Question 15: Which of the following is the most reliable, secure means of...; Question 16: Which of the following is a symmetric encryption algorithm?...; Question 17: What are the three FUNDAMENTAL principles of security?...; Question 18: Which of the following is NOT an encryption method used by V...; Question 19: What is the main difference between a Smurf and a Fraggle at...; Question 20: Which of the following is an example of a passive attack?...; Question 21: Which of the following phases of a system development life-c...; Question 22: Only key members of the staff need to be educated in disaste...; Question 23: When a biometric system is used, which error type deals with...; Question 24: Which of the following describes a technique in which a numb...; Question 25: Which of the following statements pertaining to using Kerber...; Question 26: Which of the following rules pertaining to a Business Contin...; Question 27: Which of the following is often the greatest challenge of di...; Question 28: In computing what is the name of a non-self-replicating type...; Question 29: Which of the following statements pertaining to link encrypt...; Question 30: A prolonged high voltage is a:; Question 31: Wiretapping is an example of a passive network attack?...; Question 32: What is the RESULT of a hash algorithm being applied to a me...; Question 33: What kind of certificate is used to validate a user identity...; Question 34: Which of the following technologies has been developed to su...; Question 35: Which of the following is the primary reason why a user woul...; Question 36: In the CIA triad, what does the letter A stand for?...; Question 37: Complete the blanks. 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Typical...; Question 174: Which of the following can prevent hijacking of a web sessio...; Question 175: Which type of control is concerned with restoring controls?...; Question 176: Heuristic scanning in antivirus software is designed to catc...; Question 177: Which authentication technique best protects against hijacki...; Question 178: Which of the following is an example of a connectionless com...; Question 179: Which of the following protocols suite does the Internet use...; Question 180: Which of the following is the WEAKEST authentication mechani...; Question 181: What is defined as the hardware, firmware and software eleme...; Question 182: When a possible intrusion into your organization's informati...; Question 183: Which of the following floors would be most appropriate to l...; Question 184: What are the three components of the AIC triad? (Choose thre...; Question 185: Which of the following binds a subject name to a public key ...; Question 186: What is the main problem of the renewal of a root CA certifi...; Question 187: What would be the name of a Logical or Virtual Table dynamic...; Question 188: Qualitative loss resulting from the business interruption do...; Question 189: A deviation from an organization-wide security policy requir...; Question 190: What does the (star) integrity axiom mean in the Biba model?...; Question 191: Which ISO/OSI layer establishes the communications link betw...; Question 192: Which of the following elements is NOT included in a Public ...; Question 193: The session layer provides a logical persistent connection b...; Question 194: Logical or technical controls involve the restriction of acc...; Question 195: Which of the following could be BEST defined as the likeliho...; Question 196: The ___________ protocol converts IP addresses (logical) to ...; Question 197: Trin00 is an example of what type of attack?...; Question 198: What can be defined as secret communications where the very ...; Question 199: In order to be able to successfully prosecute an intruder:...; Question 200: Which of the following statements pertaining to key manageme...; Question 201: Which of the following statements is most accurate regarding...; Question 202: Why is infrared generally considered to be more secure to ea...; Question 203: A Wide Area Network (WAN) is basically everything outside of...; Question 204: Step-by-step instructions used to satisfy control requiremen...; Question 205: What is NOT an authentication method within IKE and IPsec?...; Question 206: Which of the following would best describe secondary evidenc...; Question 207: In what type of attack does an attacker try, from several en...; Question 208: What can be defined as a batch process dumping backup data t...; Question 209: Which of the following statements pertaining to the Bell-LaP...; Question 210: Why do buffer overflows happen? 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Question 251: Which of the following statements pertaining to Kerberos is ...; Question 252: Which of the following IEEE standards defines the token ring...; Question 253: What is the primary reason why some sites choose not to impl...; Question 254: Which of the following is best at defeating frequency analys...; Question 255: What is called an attack in which an attacker floods a syste...; Question 256: Which of the following LAN topologies offers the highest ava...; Question 257: Why are coaxial cables called "coaxial"?...; Question 258: Which of the following is NOT a transaction redundancy imple...; Question 259: The primary service provided by Kerberos is which of the fol...; Question 260: Which type of attack involves the alteration of a packet at ...; Question 261: Insiders have a clear advantage in committing computer crime...; Question 262: The ability to identify and audit a user and his / her actio...; Question 263: Which of the following biometric devices has the lowest user...; 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Do take...; Question 295: A DMZ is located:; Question 296: Which of the following is not a two-factor authentication me...; Question 297: Which type of attack involves impersonating a user or a syst...; Question 298: Which of the following is the best reason for the use of an ...; Question 299: Which of the following is the most complete disaster recover...; Question 300: Which of the following items is NOT a benefit of cold sites?...; Question 301: Which of the following services relies on UDP?...; Question 302: Which of the following defines session hijacking?...; Question 303: A timely review of system access audit records would be an e...; Question 304: Proxies works by transferring a copy of each accepted data p...; Question 305: Why should batch files and scripts be stored in a protected ...; Question 306: What is the difference between Advisory and Regulatory secur...; Question 307: Which of the following is used to find the Media Access Cont...; Question 308: Which port does the Post Office Protocol Version 3 (POP3) ma...; Question 309: What can best be described as a domain of trust that shares ...; Question 310: Buffer overflow and boundary condition errors are subsets of...; Question 311: Which access control model provides upper and lower bounds o...; Question 312: The IP header contains a protocol field. 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Question 394: What attack involves the perpetrator sending spoofed packet(...; Question 395: Which expert system operating mode allows determining if a g...; Question 396: Which of the following statements relating to the Bell-LaPad...; Question 397: Which of the following statements pertaining to packet switc...; Question 398: Which of the following is most appropriate to notify an inte...; Question 399: A public key algorithm that does both encryption and digital...; Question 400: Examples of types of physical access controls include all EX...; Question 401: Identification and authentication are the keystones of most ...; Question 402: What would be considered the biggest drawback of Host-based ...; Question 403: What is called the type of access control where there are pa...; Question 404: What enables a workstation to boot without requiring a hard ...; Question 405: Which of the following is an advantage of a qualitative over...; Question 406: Which of the following statements pertaining to biometrics i...; 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Question 420: In order to use L0pht, the ___________ must be exported from...; Question 421: What is the primary difference between FTP and TFTP?...; Question 422: Which of the following would constitute the best example of ...; Question 423: Flooding network ports is an example of which type of attack...; Question 424: Which of the following questions is less likely to help in a...; Question 425: An alternative to using passwords for authentication in logi...; Question 426: What key size is used by the Clipper Chip?...; Question 427: Which of the following is TRUE regarding Transmission Contro...; Question 428: Echo, chargen, finger, and bootp are all examples of?...; Question 429: Which of the following is an advantage of prototyping?...; Question 430: If an organization were to monitor their employees' e-mail, ...; Question 431: How are memory cards and smart cards different?...; Question 432: __________ is the most famous Unix password cracking tool....; Question 433: What is considered the most important type of error to avoid...; Question 434: Frame relay uses a public switched network to provide:...; Question 435: Telnet and rlogin use which protocol?...; Question 436: Which protocol makes USE of an electronic wallet on a custom...; Question 437: Which of the following algorithms is used today for encrypti...; Question 438: Which of following is not a service provided by AAA servers ...; Question 439: Which of the following was developed to address some of the ...; Question 440: Which access control model would a lattice-based access cont...; Question 441: Controlling access to information systems and associated net...; Question 442: The end result of implementing the principle of least privil...; Question 443: A confidential number used as an authentication factor to ve...; Question 444: __________ is a tool used by network administrators to captu...; Question 445: ________, _________, and __________ are required to successf...; Question 446: _____________ is the process of capturing network packets, b...; Question 447: Which of the following is the most reliable authentication m...; Question 448: Which access model is most appropriate for companies with a ...; Question 449: In non-discretionary access control using Role Based Access ...; Question 450: Which of the following access methods is used by Ethernet?...; Question 451: AH - Authentication Header is used in what industry standard...; Question 452: What prevents a process from accessing another process' data...; Question 453: A proxy is considered a:; Question 454: Penetration testing involves three steps. At which step shou...; Question 455: What is a characteristic of using the Electronic Code Book m...; Question 456: What is the Maximum Tolerable Downtime (MTD)?...; Question 457: Which of the following questions is less likely to help in a...; Question 458: Which of the following is not a security goal for remote acc...; Question 459: Which of the following type of traffic can easily be filtere...; Question 460: Which of the following protocols is designed to send individ...; Question 461: Which of the following is a set of data processing elements ...; Question 462: Which of the following is the LEAST user accepted biometric ...; Question 463: Which of the following is NOT a valid reason to use external...; Question 464: Volatile memory is referred to as ROM....; Question 465: What is the PRIMARY reason to maintain the chain of custody ...; Question 466: Who first described the DoD multilevel military security pol...; Question 467: What does the directive of the European Union on Electronic ...; Question 468: A virus is considered to be "in the ______ " if it has been ...; Question 469: Which of the following statements pertaining to disk mirrori...; Question 470: Which of the following attacks could capture network user pa...; Question 471: What is used to bind a document to its creation at a particu...; Question 472: Who is responsible for providing reports to the senior manag...; Question 473: What can be defined as the maximum acceptable length of time...; Question 474: Which of the following is less likely to accompany a conting...; Question 475: A password audit consists of checking for ____________?...; Question 476: The Logical Link Control sub-layer is a part of which of the...; Question 477: Which of the following is NOT a common backup method?...; Question 478: The International Standards Organization / Open Systems Inte...; Question 479: Which backup method usually resets the archive bit on the fi...; Question 480: Each data packet is assigned the IP address of the sender an...; Question 481: While using IPsec, the ESP and AH protocols both provides in...; Question 482: What is the most critical characteristic of a biometric iden...; Question 483: Tripwire is a ___________________-...; Question 484: If an operating system permits shared resources such as memo...; Question 485: Which of the following is related to physical security and i...; Question 486: Secure Shell (SSH) is a strong method of performing:...; Question 487: Which of the following best ensures accountability of users ...; Question 488: Which of the following networking devices allows the connect...; Question 489: Which of the following is NOT a correct notation for an IPv6...; Question 490: Which of the following phases of a software development life...; Question 491: The type of discretionary access control (DAC) that is based...; Question 492: ___________, generally considered "need to know" access is g...; Question 493: Unclassified, Private, Confidential, Secret, Top Secret, and...; Question 494: Which IPSec operational mode encrypts the entire data packet...; Question 495: What is the main focus of the Bell-LaPadula security model?...; Question 496: Under the Business Exemption Rule to the hearsay evidence, w...; Question 497: Good security is built on which of the following concept?...; Question 498: Transport Layer Security (TLS) is a two-layered socket layer...; Question 499: Which of the following statements do not apply to a hot site...; Question 500: How many bits of a MAC address uniquely identify a vendor, a...; Question 501: What is the most secure way to dispose of information on a C...; Question 502: Which layer of the DoD TCP/IP model controls the communicati...; Question 503: Which backup method only copies files that have been recentl...; Question 504: Which of the following is NOT a factor related to Access Con...; Question 505: Which of the following mechanisms was created to overcome th...; Question 506: Which of the following choices describe a condition when RAM...; Question 507: Who should measure the effectiveness of Information System s...; Question 508: A business continuity plan is an example of which of the fol...; Question 509: A prolonged complete loss of electric power is a:...; Question 510: Which of the following is currently used in conjunction with...; Question 511: Which of the following would be the best criterion to consid...; Question 512: Which of the following choices describe a Challenge-response...; Question 513: Which of the following cannot be undertaken in conjunction o...; Question 514: Which of the following is NOT a compensating measure for acc...; Question 515: Which of the following reviews system and event logs to dete...; Question 516: Which of the following is an issue with signature-based intr...; Question 517: The control measures that are intended to reveal the violati...; Question 518: Secure Shell (SSH-2) supports authentication, compression, c...; Question 519: Risk reduction in a system development life-cycle should be ...; Question 520: A contingency plan should address:...; Question 521: The number of violations that will be accepted or forgiven b...; Question 522: Brute force attacks against encryption keys have increased i...; Question 523: Which of the following are the two MOST common implementatio...; Question 524: What is called the percentage of valid subjects that are fal...; Question 525: What is the main characteristic of a bastion host?...; Question 526: Computer-generated evidence is considered:...; Question 527: Which of the following offers confidentiality to an e-mail m...; Question 528: Which of the following statements regarding an off-site info...; Question 529: Which three things must be considered for the design, planni...; Question 530: Authentication is based on which of the following:<br>...; Question 531: Which of the following is NOT a property of the Rijndael blo...; Question 532: Which of the following is an attribute of polymorphic code?...; Question 533: Which OSI/ISO layer is the Media Access Control (MAC) sublay...; Question 534: Which of the following would BEST be defined as an absence o...; Question 535: Which of the following ASYMMETRIC encryption algorithms is b...; Question 536: Which of the following statements pertaining to biometrics i...; Question 537: Why are clipping levels used?; Question 538: What is the PRIMARY use of a password?...; Question 539: The most important component of antivirus software is the __...; Question 540: The controls that usually require a human to evaluate the in...; Question 541: Which is the last line of defense in a physical security sen...; Question 542: There are ______ available service ports...; Question 543: The Crossover Error Rate (CER) is a good measure of performa...; Question 544: L2TP is considered to be a less secure protocol than PPTP....; Question 545: The __________ is the most dangerous part of a virus program...; Question 546: The Clipper Chip utilizes which concept in public key crypto...; Question 547: SATAN is a _____________ based tool and COPS is a __________...; Question 548: Which of the following methods of providing telecommunicatio...; Question 549: SMTP can best be described as:; Question 550: Which access control type has a central authority that deter...; Question 551: Which of the following can be best defined as computing tech...; Question 552: Which of the following is best defined as a mode of system t...; Question 553: What is called an exception to the search warrant requiremen...; Question 554: Which of the following NAT firewall translation modes offers...; Question 555: The absence of a safeguard, or a weakness in a system that m...; Question 556: What are the main goals of an information security program? ...; Question 557: What is used to protect programs from all unauthorized modif...; Question 558: What is defined as the rules for communicating between compu...; Question 559: Organizations should not view disaster recovery as which of ...; Question 560: Which of the following are NOT a countermeasure to traffic a...; Question 561: What mechanism automatically causes an alarm originating in ...; Question 562: Controls like guards and general steps to maintain building ...; Question 563: Degaussing is used to clear data from all of the following m...; Question 564: The Data Encryption Algorithm performs how many rounds of su...; Question 565: Which of the following is NOT a common category/classificati...; Question 566: Layer 4 of the OSI model corresponds to which layer of the D...; Question 567: Countermeasures address security concerns in which of the fo...; Question 568: What can best be described as an abstract machine which must...; Question 569: Which of the following would be LESS likely to prevent an em...; Question 570: A common way to create fault tolerance with leased lines is ...; Question 571: Within the legal domain what rule is concerned with the lega...; Question 572: Which protocol of the TCP/IP suite addresses reliable data t...; Question 573: Which of the following is the biggest concern with firewall ...; Question 574: A Security Reference Monitor relates to which DoD security s...; Question 575: What does the Clark-Wilson security model focus on?...; Question 576: Which of the following best describes signature-based detect...; Question 577: Recovery Site Strategies for the technology environment depe...; Question 578: Which of the following teams should NOT be included in an or...; Question 579: Which one of the following is usually not a benefit resultin...; Question 580: At which OSI/ISO layer is an encrypted authentication betwee...; Question 581: Whose role is it to assign classification level to informati...; Question 582: Which layer defines how packets are routed between end syste...; Question 583: Which of the following can be defined as a framework that su...; Question 584: Which of the following is an Internet IPsec protocol to nego...; Question 585: ___________________ viruses change the code order of the str...; Question 586: Which of the following backup methods is primarily run when ...; Question 587: What is the greatest danger from DHCP?...; Question 588: Another name for a VPN is a:; Question 589: Which of the following layers provides end-to-end data trans...; Question 590: An attempt to break an encryption algorithm is called ______...; Question 591: In biometrics, "one-to-many" search against database of stor...; Question 592: Integrity = ______________; Question 593: Which of the following are NT Audit events? (Choose all that...; Question 594: A network-based vulnerability assessment is a type of test a...; Question 595: Which of the following is a reason to use a Firewall?...; Question 596: What is electronic vaulting?; Question 597: Which of the following is most concerned with personnel secu...; Question 598: Which of the following tools is less likely to be used by a ...; Question 599: Which layer of the OSI/ISO model handles physical addressing...; Question 600: Which approach to a security program ensures people responsi...; Question 601: What can best be defined as a strongly protected computer th...; Question 602: Which of the following statements pertaining to firewalls is...; Question 603: Which of the following is implemented through scripts or sma...; Question 604: Which of the following will a Business Impact Analysis NOT i...; Question 605: Which xDSL flavour, appropriate for home or small offices, d...

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