SY0-401

An achievement in providing worldwide Internet security was the signing of certificates associated with which of the following protocols?

A Chief Information Security Officer (CISO) wants to implement two-factor authentication within the company. Which of the following would fulfill the CISO’s requirements?

Which of the following can a security administrator implement on mobile devices that will help prevent unwanted people from viewing the data if the device is left unattended?

Which of the following would a security administrator implement in order to identify a problem between two systems that are not communicating properly?

Which of the following can result in significant administrative overhead from incorrect reporting?

A security administrator wants to perform routine tests on the network during working hours when certain applications are being accessed by the most people. Which of the following would allow the security administrator to test the lack of security controls for those applications with the least impact to the system?

Which of the following risk concepts requires an organization to determine the number of failures per year?

A system security analyst using an enterprise monitoring tool notices an unknown internal host exfiltrating files to several foreign IP addresses. Which of the following would be an appropriate mitigation technique?

Three of the primary security control types that can be implemented are.

The helpdesk reports increased calls from clients reporting spikes in malware infections on their systems. Which of the following phases of incident response is MOST appropriate as a FIRST response?

Which of the following protocols operates at the HIGHEST level of the OSI model?

Joe, the system administrator, has been asked to calculate the Annual Loss Expectancy (ALE) for a $5,000 server, which often crashes. In the past year, the server has crashed 10 times, requiring a system reboot to recover with only 10% loss of data or function. Which of the following is the ALE of this server?

Which of the following should an administrator implement to research current attack methodologies?

Which of the following can be implemented in hardware or software to protect a web server from cross-site scripting attacks?

Which of the following means of wireless authentication is easily vulnerable to spoofing?

Jane, a security administrator, needs to implement a secure wireless authentication method that uses a remote RADIUS server for authentication.
Which of the following is an authentication method Jane should use?

Computer evidence at a crime scene is documented with a tag stating who had possession of the evidence at a given time.
Which of the following does this illustrate?

A network administrator is configuring access control for the sales department which has high employee turnover. Which of the following is BEST suited when assigning user rights to individuals in the sales department?

Which of the following is being tested when a company’s payroll server is powered off for eight
hours?

A security analyst, Ann, is reviewing an IRC channel and notices that a malicious exploit has been created for a frequently used application. She notifies the software vendor and asks them for remediation steps, but is alarmed to find that no patches are available to mitigate this vulnerability.
Which of the following BEST describes this exploit?

A security administrator has concerns about new types of media which allow for the mass distribution of personal comments to a select group of people. To mitigate the risks involved with this media, employees should receive training on which of the following?

A network administrator is responsible for securing applications against external attacks. Every month, the underlying operating system is updated. There is no process in place for other software updates.
Which of the following processes could MOST effectively mitigate these risks?

A software developer is responsible for writing the code on an accounting application. Another software developer is responsible for developing code on a system in human resources. Once a year they have to switch roles for several weeks.
Which of the following practices is being implemented?

A network engineer is designing a secure tunneled VPN. Which of the following protocols would be the MOST secure?

Which of the following implementation steps would be appropriate for a public wireless hot-spot?

Which of the following is a step in deploying a WPA2-Enterprise wireless network?

Which of the following controls would allow a company to reduce the exposure of sensitive systems from unmanaged devices on internal networks?

Which of the following preventative controls would be appropriate for responding to a directive to reduce the attack surface of a specific host?

A security manager must remain aware of the security posture of each system. Which of the
following supports this requirement?

Deploying a wildcard certificate is one strategy to:

The security administrator needs to manage traffic on a layer 3 device to support FTP from a new remote site. Which of the following would need to be implemented?

Which of the following ports is used for SSH, by default?

A network administrator has been tasked with securing the WLAN. Which of the following cryptographic products would be used to provide the MOST secure environment for the WLAN?

A server with the IP address of 10.10.2.4 has been having intermittent connection issues. The logs show repeated connection attempts from the following IPs:
10.10.3.16
10.10.3.23
212.178.24.26
217.24.94.83
These attempts are overloading the server to the point that it cannot respond to traffic. Which of the following attacks is occurring?

Which of the following ciphers would be BEST used to encrypt streaming video?

A user attempting to log on to a workstation for the first time is prompted for the following information before being granted access: username, password, and a four-digit security pin that was mailed to him during account registration. This is an example of which of the following?

After analyzing and correlating activity from multiple sensors, the security administrator has
determined that a group of very well organized individuals from an enemy country is responsible for various attempts to breach the company network, through the use of very sophisticated and targeted attacks. Which of the following is this an example of?

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

A merchant acquirer has the need to store credit card numbers in a transactional database in a high performance environment. Which of the following BEST protects the credit card data?

A bank has a fleet of aging payment terminals used by merchants for transactional processing. The terminals currently support single DES but require an upgrade in order to be compliant with security standards. Which of the following is likely to be the simplest upgrade to the aging terminals which will improve in-transit protection of transactional data?

Which of the following is BEST at blocking attacks and providing security at layer 7 of the OSI model?

Which of the following is BEST used to capture and analyze network traffic between hosts on the same network segment?

After a number of highly publicized and embarrassing customer data leaks as a result of social engineering attacks by phone, the Chief Information Officer (CIO) has decided user training will reduce the risk of another data leak. Which of the following would be MOST effective in reducing data leaks in this situation?

Which of the following functions provides an output which cannot be reversed and converts data into a string of characters?

Which of the following encrypts data a single bit at a time?

Which of the following is used to verify data integrity?

Maintenance workers find an active network switch hidden above a dropped-ceiling tile in the CEO’s office with various connected cables from the office. Which of the following describes the type of attack that was occurring?

A security administrator is segregating all web-facing server traffic from the internal network and restricting it to a single interface on a firewall. Which of the following BEST describes this new network?

Which of the following was based on a previous X.500 specification and allows either unencrypted authentication or encrypted authentication through the use of TLS?

The Quality Assurance team is testing a new third party developed application. The Quality team does not have any experience with the application. Which of the following is the team performing?

Which of the following has a storage root key?

A datacenter requires that staff be able to identify whether or not items have been removed from the facility. Which of the following controls will allow the organization to provide automated notification of item removal?

A malicious person gained access to a datacenter by ripping the proximity badge reader off the wall near the datacenter entrance. This caused the electronic locks on the datacenter door to release because the:

The concept of rendering data passing between two points over an IP based network impervious to all but the most sophisticated advanced persistent threats is BEST categorized as which of the following?

On Monday, all company employees report being unable to connect to the corporate wireless network, which uses 802.1x with PEAP. A technician verifies that no configuration changes were made to the wireless network and its supporting infrastructure, and that there are no outages.
Which of the following is the MOST likely cause for this issue?

Which of the following would BEST deter an attacker trying to brute force 4-digit PIN numbers to access an account at a bank teller machine?

Which of the following network design elements allows for many internal devices to share one public IP address?

Which of the following components of an all-in-one security appliance would MOST likely be configured in order to restrict access to peer-to-peer file sharing websites?

When considering a vendor-specific vulnerability in critical industrial control systems which of the following techniques supports availability?

During the information gathering stage of a deploying role-based access control model, which of the following information is MOST likely required?

The Chief Technical Officer (CTO) has been informed of a potential fraud committed by a database administrator performing several other job functions within the company. Which of the following is the BEST method to prevent such activities in the future?

Ann would like to forward some Personal Identifiable Information to her HR department by email, but she is worried about the confidentiality of the information. Which of the following will accomplish this task securely?

A company is trying to limit the risk associated with the use of unapproved USB devices to copy documents. Which of the following would be the BEST technology control to use in this scenario?

A company is trying to implement physical deterrent controls to improve the overall security posture of their data center. Which of the following BEST meets their goal?

A company’s employees were victims of a spear phishing campaign impersonating the CEO. The company would now like to implement a solution to improve the overall security posture by assuring their employees that email originated from the CEO. Which of the following controls could they implement to BEST meet this goal?

A security technician is attempting to improve the overall security posture of an internal mail server. Which of the following actions would BEST accomplish this goal?

A bank has recently deployed mobile tablets to all loan officers for use at customer sites. Which of the following would BEST prevent the disclosure of customer data in the event that a tablet is lost or stolen?

Which of the following is the primary security concern when deploying a mobile device on a network?

Which of the following technical controls is BEST used to define which applications a user can install and run on a company issued mobile device?

After a company has standardized to a single operating system, not all servers are immune to a well-known OS vulnerability. Which of the following solutions would mitigate this issue?

A security administrator discovers an image file that has several plain text documents hidden in the file. Which of the following security goals is met by camouflaging data inside of other files?

A company determines a need for additional protection from rogue devices plugging into physical ports around the building.
Which of the following provides the highest degree of protection from unauthorized wired network access?

During the analysis of a PCAP file, a security analyst noticed several communications with a remote server on port 53. Which of the following protocol types is observed in this traffic?

A compromised workstation utilized in a Distributed Denial of Service (DDOS) attack has been removed from the network and an image of the hard drive has been created. However, the system administrator stated that the system was left unattended for several hours before the image was created. In the event of a court case, which of the following is likely to be an issue with this
incident?

During which of the following phases of the Incident Response process should a security administrator define and implement general defense against malware?

Due to hardware limitation, a technician must implement a wireless encryption algorithm that uses the RC4 protocol. Which of the following is a wireless encryption solution that the technician should implement while ensuring the STRONGEST level of security?

A technician wants to implement a dual factor authentication system that will enable the organization to authorize access to sensitive systems on a need-to-know basis. Which of the following should be implemented during the authorization stage?

A security researcher wants to reverse engineer an executable file to determine if it is malicious.
The file was found on an underused server and appears to contain a zero-day exploit. Which of
the following can the researcher do to determine if the file is malicious in nature?

A recent spike in virus detections has been attributed to end-users visiting www.compnay.com.
The business has an established relationship with an organization using the URL of
www.company.com but not with the site that has been causing the infections. Which of the
following would BEST describe this type of attack?

A company has proprietary mission critical devices connected to their network which are
configured remotely by both employees and approved customers. The administrator wants to
monitor device security without changing their baseline configuration. Which of the following
should be implemented to secure the devices without risking availability?

An administrator has a network subnet dedicated to a group of users. Due to concerns regarding
data and network security, the administrator desires to provide network access for this group only.
Which of the following would BEST address this desire?

Which of the following is a security concern regarding users bringing personally-owned devices
that they connect to the corporate network?

Due to issues with building keys being duplicated and distributed, a security administrator wishes
to change to a different security control regarding a restricted area. The goal is to provide access
based upon facial recognition. Which of the following will address this requirement?

A security administrator has concerns regarding employees saving data on company provided mobile devices. Which of the following would BEST address the administrator’s concerns?

Identifying residual risk is MOST important to which of the following concepts?

The information security technician wants to ensure security controls are deployed and functioning
as intended to be able to maintain an appropriate security posture. Which of the following security
techniques is MOST appropriate to do this?

An organization does not have adequate resources to administer its large infrastructure. A security
administrator wishes to combine the security controls of some of the network devices in the
organization. Which of the following methods would BEST accomplish this goal?

Which of the following would allow the organization to divide a Class C IP address range into
several ranges?

The security administrator is currently unaware of an incident that occurred a week ago. Which of
the following will ensure the administrator is notified in a timely manner in the future?

An access point has been configured for AES encryption but a client is unable to connect to it.
Which of the following should be configured on the client to fix this issue?

The system administrator is tasked with changing the administrator password across all 2000
computers in the organization. Which of the following should the system administrator implement
to accomplish this task?

Which of the following attacks would cause all mobile devices to lose their association with
corporate access points while the attack is underway?

An administrator wants to ensure that the reclaimed space of a hard drive has been sanitized
while the computer is in use. Which of the following can be implemented?

A company is looking to improve their security posture by addressing risks uncovered by a recent
penetration test. Which of the following risks is MOST likely to affect the business on a day-to-day
basis?

Ann, an employee, is cleaning out her desk and disposes of paperwork containing confidential
customer information in a recycle bin without shredding it first. This is MOST likely to increase the
risk of loss from which of the following attacks?

A recently installed application update caused a vital application to crash during the middle of the
workday. The application remained down until a previous version could be reinstalled on the
server, and this resulted in a significant loss of data and revenue.
Which of the following could BEST prevent this issue from occurring again?

A security administrator wishes to increase the security of the wireless network. Which of the
following BEST addresses this concern?

The system administrator has deployed updated security controls for the network to limit risk of
attack. The security manager is concerned that controls continue to function as intended to
maintain appropriate security posture.
Which of the following risk mitigation strategies is MOST important to the security manager?

A company is about to release a very large patch to its customers. An administrator is required to
test patch installations several times prior to distributing them to customer PCs.
Which of the following should the administrator use to test the patching process quickly and often?

A vulnerability scan is reporting that patches are missing on a server. After a review, it is
determined that the application requiring the patch does not exist on the operating system.
Which of the following describes this cause?

Company A submitted a bid on a contract to do work for Company B via email. Company B was
insistent that the bid did not come from Company A. Which of the following would have assured
that the bid was submitted by Company A?

Ann, a sales manager, successfully connected her company-issued smartphone to the wireless
network in her office without supplying a username/password combination. Upon disconnecting
from the wireless network, she attempted to connect her personal tablet computer to the same
wireless network and could not connect.
Which of the following is MOST likely the reason?

A network technician is on the phone with the system administration team. Power to the server
room was lost and servers need to be restarted. The DNS services must be the first to be
restarted. Several machines are powered off. Assuming each server only provides one service,
which of the following should be powered on FIRST to establish DNS services?

A security administrator is reviewing the company’s continuity plan. The plan specifies an RTO of six hours and RPO of two days. Which of the following is the plan describing?