The act that describes a computer intruder capturing a
stream of data packets and inserting these packets into the
network as if it were another genuine message stream is called:
A. eavesdropping.
B. message modification.
C. a brute-force attack.
D. packet replay.
Answer / guest
Answer: D
Packet replay is a combination of passive and active modes
of attack. This form of attack is particularly effective
when the receiving end of the communication channel is
automated and acts on the receipt and interpretation of
information packets without human intervention.
| Is This Answer Correct ? | 5 Yes | 0 No |
52. Which of the following tests confirm that the new system can operate in its target environment?
Requiring passwords to be changed on a regular basis, assigning a new one-time password when a user forgets his/hers, and requiring users not to write down their passwords are all examples of: A. audit objectives. B. audit procedures. C. controls objectives. D. control procedures.
An IS auditor should use statistical sampling and not judgmental (nonstatistical) sampling, when: A. the probability of error must be objectively quantified. B. the auditor wants to avoid sampling risk. C. generalized audit software is unavailable. D. the tolerable error rate cannot be determined.
An IS auditor should be able to identify and evaluate various types of risks and their potential effects. Which of the following risks is associated with authorized program exits (trap doors)? A. Inherent B. Detection C. Audit D. Error
Which of the following is the MOST important criterion for the selection of a location for an offsite storage facility for IS backup files? The offsite facility must be: A. physically separated from the data center and not subject to the same risks. B. given the same level of protection as that of the computer data center. C. outsourced to a reliable third party. D. equipped with surveillance capabilities.
The act that describes a computer intruder capturing a stream of data packets and inserting these packets into the network as if it were another genuine message stream is called: A. eavesdropping. B. message modification. C. a brute-force attack. D. packet replay.
The MOST effective method for limiting the damage of an attack by a software virus is: A. software controls. B. policies, standards and procedures. C. logical access controls. D. data communication standards.
To affix a digital signature to a message, the sender must first create a message digest by applying a cryptographic hashing algorithm against: A. the entire message and thereafter enciphering the message digest using the sender's private key. B. any arbitrary part of the message and thereafter enciphering the message digest using the sender's private key. C. the entire message and thereafter enciphering the message using the sender's private key. D. the entire message and thereafter enciphering the message along with the message digest using the sender's private key.
Peer reviews to detect software errors during a program development activity are called: A. emulation techniques. B. structured walk-throughs. C. modular program techniques. D. top-down program construction.
LANs: A. protect against virus infection. B. protect against improper disclosure of data. C. provide program integrity from unauthorized changes. D. provide central storage for a group of users.
Which of the following business recovery strategies would require the least expenditure of funds? A. Warm site facility B. Empty shell facility C. Hot site subscription D. Reciprocal agreement
An organization provides information to its supply-chain partners and customers through an extranet infrastructure. Which of the following should be the GREATEST concern to an IS auditor reviewing the firewall security architecture? A. A secure socket layer (SSL) has been implemented for user authentication and remote administration of the firewall. B. On the basis of changing requirements, firewall policies are updated. C. Inbound traffic is blocked unless the traffic type and connections have been specifically permitted. D. The firewall is placed on top of the commercial operating system with all installation options.