1. Right Answer: A
Explanation: Without the initial assignment of forensic expertise, the required levels of evidence may not be preserved. In choice B. the IT department is unlikely to have that level of expertise and should, thus, be prevented from taking action. Choice C may be a subsequent necessity that comes after choice A. Choice D, notifying law enforcement, will likely occur after the forensic analysis has been completed.
2. Right Answer: B
Explanation: Packet filtering techniques are the only ones which reduce network congestion caused by a network denial of service (DoS) attack. Patching servers, in general, will not affect network traffic. Implementing network address translation and load balancing would not be as effective in mitigating most network DoS attacks.
3. Right Answer: D
Explanation: Business benefits from incident impact reduction would be the most important goal for establishing an incident management team. The assessment of business impact of past incidents would need to be completed to articulate the benefits. Having an independent review benefits the incident management process. The need for constant improvement on the security level is a benefit to the organization.
4. Right Answer: A
Explanation: Since the password for the shared administrative account was obtained through guessing, it is probable that there were multiple unsuccessful logon attempts before the correct password was deduced. Searching the logs for invalid logon attempts could, therefore, lead to the discovery of this unauthorized activity.Because the account is shared, reviewing the logs for concurrent logons would not reveal unauthorized activity since concurrent usage is common in this situation.Write access violations would not necessarily be observed since the information was merely copied and not altered. Firewall logs would not necessarily contain information regarding logon attempts.
5. Right Answer: A
Explanation: Diverting incoming traffic corrects the situation and. therefore, is a corrective control. Choice B is a preventive control. Choices C and D are detective controls.