A sequence of bits appended to a digital document that is
used to secure an e-mail sent through the Internet is called a:
A. digest signature.
B. electronic signature.
C. digital signature.
D. hash signature.
Answer / guest
Answer: C
A digital signature through the private cryptographic key
authenticates a transmission from a sender through the
private cryptographic key. It is a string of bits that
uniquely represent another string of bits, a digital
document. An electronic signature refers to the string of
bits that digitally represents a handwritten signature
captured by a computer system when a human applies it on an
electronic pen pad, connected to the system.
| Is This Answer Correct ? | 2 Yes | 0 No |
Digital signatures require the: A. signer to have a public key and the receiver to have a private key. B. signer to have a private key and the receiver to have a public key. C. signer and receiver to have a public key. D. signer and receiver to have a private key.
An advantage in using a bottom-up versus a top-down approach to software testing is that: A. interface errors are detected earlier. B. confidence in the system is achieved earlier. C. errors in critical modules are detected earlier. D. major functions and processing are tested earlier.
Which of the following goals would you expect to find in an organization's strategic plan? A. Test a new accounting package. B. Perform an evaluation of information technology needs. C. Implement a new project planning system within the next 12 months. D. Become the supplier of choice within a given time period for the product offered.
The intent of application controls is to ensure that when inaccurate data is entered into the system, the data is: A. accepted and processed. B. accepted and not processed. C. not accepted and not processed. D. not accepted and processed.
After implementation of a disaster recovery plan (DRP), pre-disaster and post-disaster operational cost for an organization will: A. decrease. B. not change (remain the same). C. increase. D. increase or decrease depending upon nature of the business.
When performing a review of the structure of an electronic funds transfer (EFT) system, an IS auditor observes that the technological infrastructure is based on a centralized processing scheme that has been outsourced to a provider in another country. Based on this information, which of the following conclusions should be the main concern of the IS auditor? A. There could be a question with regards to the legal jurisdiction. B. Having a provider abroad will cause excesive costs in future audits. C. The auditing process will be difficult because of the distances. D. There could be different auditing norms.
Which of the following would enable an enterprise to provide access to its intranet (i.e., extranet) across the Internet to its business partners? A. Virtual private network B. Client-server C. Dial-in access D. Network service provider
The key difference between a microwave radio system and a satellite radiolink system is that: A. microwave uses line-of-sight and satellite uses transponders during transmission. B. microwave operates through transponders placed on the earth's orbit. C. satellite uses line-of-sight during transmission. D. microwave uses fiber optic cables.
The review of router access control lists should be conducted during a/an: A. environmental review. B. network security review. C. business continuity review. D. data integrity review.
A TCP/IP-based environment is exposed to the Internet. Which of the following BEST ensures that complete encryption and authentication protocols exist for protecting information while transmitted? A. Work is completed in tunnel mode with IP security using the nested services of authentication header (AH) and encapsulating security payload (ESP). B. A digital signature with RSA has been implemented. C. Digital certificates with RSA are being used. D. Work is being completed in.TCP services.
Which of the following audit tools is MOST useful to an IS auditor when an audit trail is required? A. Integrated test facility (ITF) B. Continuous and intermittent simulation (CIS) C. Audit hooks D. Snapshots
Which of the following hardware devices relieves the central computer from performing network control, format conversion and message handling tasks? A. Spool B. Cluster controller C. Protocol converter D. Front end processor