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Q471. A security analyst performs the following activities: monitors security logs, installs surveillance cameras and analyzes trend reports. Which of the following job responsibilities is the analyst performing? (Select TWO).
A. Detect security incidents
B. Reduce attack surface of systems
C. Implement monitoring controls
D. Hardening network devices
E. Prevent unauthorized access
Answer: A,C
Explanation:
By monitoring security logs, installing security cameras and analyzing trend reports, the security analyst is implementing monitoring controls. With the monitoring controls in place, by monitoring the security logs, reviewing the footage from the security cameras and analyzing trend reports, the security analyst is able to detect security incidents.
Q472. A security administrator wants to implement a solution which will allow some applications to run under the user's home directory and only have access to files stored within the same user's folder, while other applications have access to shared folders. Which of the following BEST addresses these requirements if the environment is concurrently shared by multiple users?
A. OS Virtualization
B. Trusted OS
C. Process sandboxing
D. File permission
Answer: C
Explanation:
Q473. Which of the following offers the LEAST secure encryption capabilities?
A. TwoFish
B. PAP
C. NTLM
D. CHAP
Answer: B
Explanation:
PAP transmits unencrypted ASCII passwords over the network and is therefore considered insecure. It is used as a last resort when the remote server does not support a stronger authentication protocol, like CHAP or EAP.
Q474. When considering a vendor-specific vulnerability in critical industrial control systems which of the following techniques supports availability?
A. Deploying identical application firewalls at the border
B. Incorporating diversity into redundant design
C. Enforcing application white lists on the support workstations
D. Ensuring the systems’ anti-virus definitions are up-to-date
Answer: B
Explanation:
If you know there is a vulnerability that is specific to one vendor, you can improve availability by implementing multiple systems that include at least one system from a different vendor and so is not affected by the vulnerability.
Topic 5, Access Control and Identity Management
Q475. A security engineer is reviewing log data and sees the output below:
POST: /payload.php HTTP/1.1 HOST: localhost Accept: */* Referrer: http://localhost/ ******* HTTP/1.1 403 Forbidden Connection: close
Log: Access denied with 403. Pattern matches form bypass Which of the following technologies was MOST likely being used to generate this log?
A. Host-based Intrusion Detection System
B. Web application firewall
C. Network-based Intrusion Detection System
D. Stateful Inspection Firewall
E. URL Content Filter
Answer: B
Explanation:
A web application firewall is a device, server add-on, virtual service, or system filter that defines a strict set of communication rules for a website and all visitors. It’s intended to be an application-specific firewall to prevent cross-site scripting, SQL injection, and other web application attacks.
Q476. A password history value of three means which of the following?
A. Three different passwords are used before one can be reused.
B. A password cannot be reused once changed for three years.
C. After three hours a password must be re-entered to continue.
D. The server stores passwords in the database for three days.
Answer: A
Explanation:
Password History defines the number of unique new passwords a user must use before an old password can be reused.
Q477. When Ann an employee returns to work and logs into her workstation she notices that, several desktop configuration settings have changed. Upon a review of the CCTV logs, it is determined that someone logged into Ann’s workstation. Which of the following could have prevented this from happening?
A. Password complexity policy
B. User access reviews
C. Shared account prohibition policy
D. User assigned permissions policy
Answer: A
Explanation:
The most important countermeasure against password crackers is to use long, complex passwords, which are changed regularly. Since changes were made to Ann’s desktop configuration settings while she was not at work, means that her password was compromised.
Q478. A system administrator has been instructed by the head of security to protect their data at-rest.
Which of the following would provide the strongest protection?
A. Prohibiting removable media
B. Incorporating a full-disk encryption system
C. Biometric controls on data center entry points
D. A host-based intrusion detection system
Answer: B
Explanation:
Full disk encryption can be used to encrypt an entire volume with 128-bit encryption. When the entire volume is encrypted, the data is not accessible to someone who might boot another operating system in an attempt to bypass the computer’s security. Full disk encryption is sometimes referred to as hard drive encryption. This would be best to protect data that is at rest.
Q479. A security administrator forgets their card to access the server room. The administrator asks a coworker if they could use their card for the day. Which of the following is the administrator using to gain access to the server room?
A. Man-in-the-middle
B. Tailgating
C. Impersonation
D. Spoofing
Answer: C
Explanation:
Impersonation is where a person, computer, software application or service pretends to be someone or something it’s not. Impersonation is commonly non-maliciously used in client/server applications. However, it can also be used as a security threat.
In this question, by using the coworker’s card, the security administrator is ‘impersonating’ the coworker. The server room locking system and any logging systems will ‘think’ that the coworker has entered the server room.
Q480. During a server audit, a security administrator does not notice abnormal activity. However, a network security analyst notices connections to unauthorized ports from outside the corporate network. Using specialized tools, the network security analyst also notices hidden processes running. Which of the following has MOST likely been installed on the server?
A. SPIM
B. Backdoor
C. Logic bomb
D. Rootkit
Answer: D
Explanation:
A rootkit is a collection of tools (programs) that enable administrator-level access to a computer or computer network. Typically, a cracker installs a rootkit on a computer after first obtaining user-level access, either by exploiting a known vulnerability or cracking a password. Once the rootkit is installed, it allows the attacker to mask intrusion and gain root or privileged access to the computer and, possibly, other machines on the network. A rootkit may consist of spyware and other programs that: monitor traffic and keystrokes; create a "backdoor" into the system for the hacker's use; alter log files; attack other machines on the network; and alter existing system tools to escape detection. The presence of a rootkit on a network was first documented in the early 1990s. At that time, Sun and Linux operating systems were the primary targets for a hacker looking to install a rootkit. Today, rootkits are available for a number of operating systems, including Windows, and are increasingly difficult to detect on any network.