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.
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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.
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In regard to moving an application program from the test environment to the production environment, the BEST control would be provided by having the: A. application programmer copy the source program and compiled object module to the production libraries. B. as paul says, C. production control group compile the object module to the production libraries using the source program in the test environment. D. production control group copy the source program to the production libraries and then compile the program.
A control for a company that wants to prevent virus-infected programs (or other type of unauthorized modified programs) would be to: A. utilize integrity checkers. B. verify program's lengths. C. backup the source and object code. D. implement segregation of duties.
E-mail message authenticity and confidentiality is BEST achieved by signing the message using the: A. sender's private key and encrypting the message using the receiver's public key. B. sender's public key and encrypting the message using the receiver's private key. C. the receiver's private key and encrypting the message using the sender's public key. D. the receiver's public key and encrypting the message using the sender's private key.
While planning an audit, an assessment of risk should be made to provide: A. reasonable assurance that the audit will cover material items. B. definite assurance that material items will be covered during the audit work. C. reasonable assurance that all items will be covered by the audit. D. sufficient assurance that all items will be covered during the audit work.
Compensating controls are intended to: A. reduce the risk of an existing or potential control weakness. B. predict potential problems before they occur. C. remedy problems discovered by detective controls. D. report errors or omissions.
An IS auditor, performing a review of an application?s controls, discovers a weakness in system software, which could materially impact the application. The IS auditor should: A. Disregard these control weaknesses as a system software review is beyond the scope of this review. B. Conduct a detailed system software review and report the control weaknesses. C. Include in the report a statement that the audit was limited to a review of the application?s controls. D. Review the system software controls as relevant and recommend a detailed system software review.
Which of the following is the MOST effective technique for providing security during data transmission? A. Communication log B. Systems software log C. Encryption D. Standard protocol
Which of the following line media would provide the BEST security for a telecommunication network? A. Broad band network digital transmission B. Baseband network C. Dial-up D. Dedicated lines
Which of the following types of firewalls provide the GREATEST degree and granularity of control? A. Screening router B. Packet filter C. Application gateway D. Circuit gateway
The use of coding standards is encouraged by IS auditors because they: A. define access control tables. B. detail program documentation. C. standardize dataflow diagram methodology. D. ensure compliance with field naming conventions.
The FIRST task an IS auditor should complete when performing an audit in an unfamiliar area is to: A. design the audit programs for each system or function involved. B. develop a set of compliance tests and substantive tests. C. gather background information pertinent to the new audit. D. assign human and economical resources.
Which of the following information valuation methods is LEAST likely to be used during a security review? A. Processing cost B. Replacement cost C. Unavailability cost D. Disclosure cost
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