An attacker attempts to create a DoS event against the VoIP system of a company. The attacker uses a tool to flood the network with a large number of SIP INVITE traffic. Which of the following would be LEAST likely to thwart such an attack?
A. Install IDS/IPS systems on the network
B. Force all SIP communication to be encrypted
C. Create separate VLANs for voice and data traffic
D. Implement QoS parameters on the switches
Joe, the Chief Executive Officer (CEO), was an Information security professor and a Subject Matter Expert for over 20 years. He has designed a network defense method which he says is significantly better than prominent international standards. He has recommended that the company use his cryptographic method. Which of the following methodologies should be adopted?
A. The company should develop an in-house solution and keep the algorithm a secret.
B. The company should use the CEO’s encryption scheme.
C. The company should use a mixture of both systems to meet minimum standards.
D. The company should use the method recommended by other respected information security organizations.
A small company’s Chief Executive Officer (CEO) has asked its Chief Security Officer (CSO) to improve the company’s security posture quickly with regard to targeted attacks. Which of the following should the CSO conduct FIRST?
A. Survey threat feeds from services inside the same industry.
B. Purchase multiple threat feeds to ensure diversity and implement blocks for malicious traffic.
C. Conduct an internal audit against industry best practices to perform a qualitative analysis.
D. Deploy a UTM solution that receives frequent updates from a trusted industry vendor.
An administrator wants to enable policy based flexible mandatory access controls on an open source OS to prevent abnormal application modifications or executions. Which of the following would BEST accomplish this?
A. Access control lists
C. IPtables firewall
Company XYZ has purchased and is now deploying a new HTML5 application. The company wants to hire a penetration tester to evaluate the security of the client and server components of the proprietary web application before launch. Which of the following is the penetration tester MOST likely to use while performing black box testing of the security of the company’s purchased application? (Select TWO).
A. Code review
C. Local proxy
E. Port scanner
A developer is determining the best way to improve security within the code being developed. The developer is focusing on input fields where customers enter their credit card details. Which of the following techniques, if implemented in the code, would be the MOST effective in protecting the fields from malformed input?
A. Client side input validation
B. Stored procedure
C. Encrypting credit card details
D. Regular expression matching