The PRIMARY objective of a firewall is to protect:
A. internal systems from exploitation by external threats.
B. external systems from exploitation by internal threats.
C. internal systems from exploitation by internal threats.
D. itself and attached systems against being used to attack
other systems.
Answer / guest
Answer: A
Firewall is placed at the point where the internal network
connects to the outside world I.e., Internet. It acts as a
security guard to the network, protecting it against
malicious attacks from outside the organization?s network.
It screens packets coming into and going out of the internal
network and prevents malicious packets from entering it and
denies access to prohibited resources on the Internet for
the internal users. It is neither the responsibility nor is
it possible for the organization to protect outside systems.
Packets whose source and destination IP addresses refer to
hosts within the same network are not sent out of the
network and hence do not pose a security threat. Choice D is
not a primary objective as this is just one form of attack
hackers resort to that the firewall protects the internal
network form.
| Is This Answer Correct ? | 12 Yes | 0 No |
An advantage of using sanitized live transactions in test data is that: A. all transaction types will be included. B. every error condition is likely to be tested. C. no special routines are required to assess the results. D. test transactions are representative of live processing.
Which of the following would provide a mechanism whereby IS management can determine if the activities of the organization have deviated from the planned or expected levels? A. Quality management B. IS assessment methods C. Management principles D. Industry standards/benchmarking
Which of the following would be MOST appropriate to ensure the confidentiality of transactions initiated via the Internet? A. Digital signature B. Data encryption standard (DES) C. Virtual private network (VPN) D. Public key encryption
An IS auditor performing a telecommunication access control review should be concerned PRIMARILY with the: A. maintenance of access logs of usage of various system resources. B. authorization and authentication of the user prior to granting access to system resources. C. adequate protection of stored data on servers by encryption or other means. D. accountability system and the ability to identify any terminal accessing system resources.
The PKI element that manages the certificate life cycle, including certificate directory maintenance and certificate revocation list (CRL) maintenance and publication is the: A. certificate authority. B. digital certificate. C. certification practice statement. D. registration authority.
An IS auditor discovers that an organization?s business continuity plan provides for an alternate processing site that will accommodate fifty percent of the primary processing capability. Based on this, which of the following actions should the IS auditor take? A. Do nothing, because generally, less than twenty-five percent of all processing is critical to an organization?s survival and the backup capacity, therefore is adequate. B. Identify applications that could be processed at the alternate site and develop manual procedures to backup other processing. C. Ensure that critical applications have been identified and that the alternate site could process all such applications. D. Recommend that the information processing facility arrange for an alternate processing site with the capacity to handle at least seventy-five percent of normal processing.
During a review of the controls over the process of defining IT service levels, an IS auditor would MOST likely interview the: A. systems programmer. B. legal staff. C. business unit manager. D. application programmer.
While developing a risk-based audit program, which of the following would the IS auditor MOST likely focus on? A. Business processes B. Critical IT applications C. Corporate objectives D. Business strategies
The risk of an IS auditor using an inadequate test procedure and concluding that material errors do not exist when, in fact, they exist is:
Which of the following should be of MOST concern to an IS auditor? A. Lack of reporting of a successful attack on the network B. Failure to notify police of an attempted intrusion C. Lack of periodic examination of access rights D. Lack of notification to the public of an intrusion
With reference to the risk management process, which of the following statements is correct? A. Vulnerabilities can be exploited by a threat. B. Vulnerabilities are events with the potential to cause harm to IS resources. C. Vulnerability exists because of threats associated with use of information resources. D. Lack of user knowledge is an example of a threat.
In a risk-based audit approach, an IS auditor, in addition to risk, would be influenced by: A. the availability of CAATs. B. management's representation. C. organizational structure and job responsibilities. D. the existence of internal and operational controls