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Q591. A small business needs to incorporate fault tolerance into their infrastructure to increase data availability. Which of the following options would be the BEST solution at a minimal cost? 

A. Clustering 

B. Mirrored server 


D. Tape backup 



RAID, or redundant array of independent disks (RAID). RAID allows your existing servers to have more than one hard drive so that if the main hard drive fails, the system keeps functioning. RAID can achieve fault tolerance using software which can be done using the existing hardware and software. 

Q592. Which of the following hardware based encryption devices is used as a part of multi-factor authentication to access a secured computing system? 

A. Database encryption 

B. USB encryption 

C. Whole disk encryption 




Trusted Platform Module (TPM) is a hardware-based encryption solution that is embedded in the system’s motherboard and is enabled or disable in BIOS. It helps with hash key generation and stores cryptographic keys, passwords, or certificates. 

Q593. Which of the following is true about input validation in a client-server architecture, when data integrity is critical to the organization? 

A. It should be enforced on the client side only. 

B. It must be protected by SSL encryption. 

C. It must rely on the user’s knowledge of the application. 

D. It should be performed on the server side. 



Client-side validation should only be used to improve user experience, never for security purposes. A client-side input validation check can improve application performance by catching malformed input on the client and, therefore, saving a roundtrip to the server. However, client side validation can be easily bypassed and should never be used for security purposes. Always use server-side validation to protect your application from malicious attacks. 

Q594. During a recent investigation, an auditor discovered that an engineer’s compromised workstation was being used to connect to SCADA systems while the engineer was not logged in. The engineer is responsible for administering the SCADA systems and cannot be blocked from connecting to them. The SCADA systems cannot be modified without vendor approval which requires months of testing. 

Which of the following is MOST likely to protect the SCADA systems from misuse? 

A. Update anti-virus definitions on SCADA systems 

B. Audit accounts on the SCADA systems 

C. Install a firewall on the SCADA network 

D. Deploy NIPS at the edge of the SCADA network 



A supervisory control and data acquisition (SCADA) system is an industrial control system (ICS) that is used to control infrastructure processes, facility-based processes, or industrial processes. A network-based IPS (NIPS) is an intrusion detection and prevention system that scans network traffic in real time against a database of attack signatures. It is useful for detecting and responding to network-based attacks originating from outside the organization. 

Q595. A network administrator noticed various chain messages have been received by the company. 

Which of the following security controls would need to be implemented to mitigate this issue? 

A. Anti-spam 

B. Antivirus 

C. Host-based firewalls 

D. Anti-spyware 


Explanation: A spam filter is a software or hardware solution used to identify and block, filter, or remove unwanted messages sent via email or instant messaging (IM). 

Q596. Which of the following offers the LEAST amount of protection against data theft by USB drives? 


B. Database encryption 


D. Cloud computing 



Cloud computing refers to performing data processing and storage elsewhere, over a network connection, rather than locally. Because users have access to the data, it can easily be copied to a USB device. 

Q597. Which the following flags are used to establish a TCP connection? (Select TWO). 






Answer: B,C 


To establish a TCP connection, the three-way (or 3-step) handshake occurs: 

SYN: The active open is performed by the client sending a SYN to the server. The client sets the segment's sequence number to a random value A. SYN-ACK: In response, the server replies with a SYN-ACK. The acknowledgment number is set to one more than the received sequence number i.e. A+1, and the sequence number that the server chooses for the packet is another random number, B. ACK: Finally, the client sends an ACK back to the server. The sequence number is set to the received acknowledgement value i.e. A+1, and the acknowledgement number is set to one more than the received sequence number i.e. B+1. 

Q598. Which of the following devices would be MOST useful to ensure availability when there are a large number of requests to a certain website? 

A. Protocol analyzer 

B. Load balancer 

C. VPN concentrator 

D. Web security gateway 



Load balancing refers to shifting a load from one device to another. A load balancer can be implemented as a software or hardware solution, and it is usually associated with a device—a router, a firewall, NAT appliance, and so on. In its most common implementation, a load balancer splits the traffic intended for a website into individual requests that are then rotated to redundant servers as they become available. 

Q599. A retail store uses a wireless network for its employees to access inventory from anywhere in the store. Due to concerns regarding the aging wireless network, the store manager has brought in a consultant to harden the network. During the site survey, the consultant discovers that the network was using WEP encryption. Which of the following would be the BEST course of action for the consultant to recommend? 

A. Replace the unidirectional antenna at the front of the store with an omni-directional antenna. 

B. Change the encryption used so that the encryption protocol is CCMP-based. 

C. Disable the network's SSID and configure the router to only access store devices based on MAC addresses. 

D. Increase the access point's encryption from WEP to WPA TKIP. 



Q600. A company has recently allowed employees to take advantage of BYOD by installing WAPs throughout the corporate office. An employee, Joe, has recently begun to view inappropriate material at work using his personal laptop. When confronted, Joe indicated that he was never told that he could not view that type of material on his personal laptop. Which of the following should the company have employees acknowledge before allowing them to access the corporate WLAN with their personal devices? 

A. Privacy Policy 

B. Security Policy 

C. Consent to Monitoring Policy 

D. Acceptable Use Policy