Prevention Security Controls Goals (2 of 3)

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Comparing Detection and Prevention Security Controls

It worth stressing the differences between detection and prevention security controls. A detective control can’t predict when an incident will occur and it can’t prevent it. In contrast, prevention security controls stop the incident from occurring at all. Consider cameras and guards.

  • Video surveillance. A simple camera without recording capabilities can prevent incidents because it acts as a deterrent. Compare this to a CCTV system with recording abilities. It includes cameras, which can deter and prevent incidents but the full system is also a detection control because of the recording capabilities. Security professionals can review the recordings to detect incidents after they’ve occurred.
  • Guards. Guards are primarily prevention security controls. They will deter many incidents just by their presence. If attackers try to circumvent a security system, such as trying to sneak into a secured area, guards can intervene and stop them.

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Corrective Security Controls

Corrective controls attempt to reverse the impact of an incident or problem after it has occurred. Some examples of corrective controls are:

  • Active IDS. Active intrusion detection systems (IDSs) attempt to detect attacks and then modify the environment to block the attack from continuing.
  • Backups and system recovery. Backups ensure that personnel can recover data if it is lost or corrupted. Similarly, system recovery procedures ensure administrators can recover a system after a failure.

Deterrent Security Controls

Deterrent controls attempt to discourage a threat. Some deterrent controls attempt to discourage potential attackers from attacking, and others attempt to discourage employees from violating a security policy.

You can often describe many deterrent controls as preventive controls. For example, you can have a security guard control access to a restricted area of your building. This guard will deter most people from trying to sneak in. This deterrence prevents security incidents related to unauthorized access. Similarly, a social engineer might try to trick a building receptionist but if you require visitors to go through the security guard first, it will deter many social engineers and prevent unauthorized entry.

The following list identifies some physical security controls used to deter threats:

  • Cable locks. Securing laptops to furniture with a cable lock deters thieves from stealing the laptops. Thieves can’t easily steal a laptop secured this way. If they try to remove the lock, they destroy the laptop. Admittedly, a thief could cut the cable with a large cable cutter. However, someone walking around with a four-foot cable cutter looks suspicious.
  • Hardware locks. Other locks such as locked doors securing a wiring closet or a server room also deter attacks. Many server bay cabinets also include locking cabinet doors.

Compensating Security Controls

Compensating controls are alternative controls used instead of a primary control. As an example, an organization might require smart cards as part of a multi-factor authentication solution. However, it might take time for new employees to receive their smart card. To allow new employees to access the network and still maintain a high level of security, the organization might choose to implement a Time-based One-Time Password (TOTP) as a compensating control. The compensating control still provides multi-factor authentication.

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Additional Security+ questions to help you prepare for the new performance based questions. These are included with the full bank of Security+ practice test questions and are divided into different sections. For example, you'll have access to the following links:

- Performance Based Question - Set 1

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of security to mobile devices and servers in a data center. You'll then have two questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 2

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of attacks with the name of the attack type. You'll then have five questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 3

You'll see a graphic showing a network with computers and servers separated by a firewall. The firewall is used to control traffic between the computers and users using rules within an access control list (ACL).  You'll have three questions that test your knowledge and ability to correctly identify the relevant components of the rule. The incorrect answers and explanation provide you with insight into how to correctly answer this type of question on the actual exam.

- Performance Based Question - Set 4

You'll see a graphic explaining what you might be required to do on the actual exam related to what a forensic analyst would do during an investigation. You'll then have two questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 5

You'll see a graphic explaining what you might be required to do on the actual exam to match protocols and ports. You'll then have seven questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 6

You'll see a list of security controls along with a graphic showing devices and locations within an organization, along with instructions on what you might be required to do on the actual exam to match the controls with the devices and locations. You'll then have four questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 7

You'll see a list of authentication methods and authentication factors along with instructions on what you might be required to do on the actual exam to match the authentication methods with the authentication factors. You'll then have six questions that test your knowledge and ability to correctly answer the questions. This set also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 8

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of attacks with the name of the attack type. You'll then have five questions that test your knowledge and ability to correctly answer the questions. This is similar to Set 2 but expands on the possibilities. The set also includes a link to a page showing the end solution for the overall performance based question simulation.

New - Performance Based Question - Set 9

New questions recently added using a different testing engine. See a demo here. This set includes drag and drop and matching questions on ports.

New - Performance Based Question - Set 10

A random set of 20 performance-based questions using drag and drop, matching, sorting, and fill in-the blank. This set includes performance-based questions on RAID.

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Get the full bank of Security+ Practice Test Questions

Click here if you're looking for SYO-501 Practice Test Questions

Simulated Performance-based Questions

Bonus - Performance Based Questions

Simulated performance-based questions included with all

packages that include practice test questions.

Additional Security+ questions to help you prepare for the new performance based questions. These are included with the full bank of Security+ practice test questions and are divided into different sections. For example, you'll have access to the following links:

- Performance Based Question - Set 1

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of security to mobile devices and servers in a data center. You'll then have two questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 2

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of attacks with the name of the attack type. You'll then have five questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 3

You'll see a graphic showing a network with computers and servers separated by a firewall. The firewall is used to control traffic between the computers and users using rules within an access control list (ACL).  You'll have three questions that test your knowledge and ability to correctly identify the relevant components of the rule. The incorrect answers and explanation provide you with insight into how to correctly answer this type of question on the actual exam.

- Performance Based Question - Set 4

You'll see a graphic explaining what you might be required to do on the actual exam related to what a forensic analyst would do during an investigation. You'll then have two questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 5

You'll see a graphic explaining what you might be required to do on the actual exam to match protocols and ports. You'll then have seven questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 6

You'll see a list of security controls along with a graphic showing devices and locations within an organization, along with instructions on what you might be required to do on the actual exam to match the controls with the devices and locations. You'll then have four questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 7

You'll see a list of authentication methods and authentication factors along with instructions on what you might be required to do on the actual exam to match the authentication methods with the authentication factors. You'll then have six questions that test your knowledge and ability to correctly answer the questions. This set also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 8

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of attacks with the name of the attack type. You'll then have five questions that test your knowledge and ability to correctly answer the questions. This is similar to Set 2 but expands on the possibilities. The set also includes a link to a page showing the end solution for the overall performance based question simulation.

New - Performance Based Question - Set 9

New questions recently added using a different testing engine. See a demo here. This set includes drag and drop and matching questions on ports.

New - Performance Based Question - Set 10

A random set of 20 performance-based questions using drag and drop, matching, sorting, and fill in-the blank. This set includes performance-based questions on RAID.

Get the full bank of Security+ Practice Test Questions Here

Simulated performance-based questions included with

all packages that include practice test questions.

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