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ISC CISSP (Certified Information Systems Security Professional) Exam is a globally recognized certification exam that is designed to validate the expertise and knowledge of professionals in the field of information security. CISSP exam is considered as a benchmark for assessing the competency of individuals who are responsible for designing, implementing, and managing security programs to protect organizations from potential cyber threats. The CISSP Certification is highly respected in the industry and is recognized by many organizations worldwide.
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NEW QUESTION # 1499
A company is planning to implement a private cloud infrastructure. Which of the following recommendations will support the move to a cloud infrastructure?
Answer: A
Explanation:
Implementing software-defined networking (SDN) to provide the ability for the network infrastructure to be integrated with the control and data planes is the recommendation that will support the move to a cloud infrastructure. A cloud infrastructure is a network architecture that provides on-demand access to shared and scalable resources and services over the Internet, such as computing, storage, networking, or applications. A cloud infrastructure can be classified into different service models, such as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), or Software as a Service (SaaS), and into different deployment models, such as public cloud, private cloud, hybrid cloud, or community cloud. A private cloud is a type of cloud infrastructure that is owned, operated, and used by a single organization, and that is hosted on the organization's premises or on a third-party provider's premises. Implementing software-defined networking (SDN) to provide the ability for the network infrastructure to be integrated with the control and data planes is the recommendation that will support the move to a cloud infrastructure, because it can provide the following benefits:
* It can decouple the network control plane from the data plane, and enable the network to be
* programmatically configured and managed by a centralized software controller, which can improve the flexibility, efficiency, and performance of the network.
* It can dynamically adjust the network according to the policies and requirements of the cloud services and applications, and optimize the network resources and bandwidth allocation, which can enhance the scalability, reliability, and availability of the cloud infrastructure.
* It can implement the security controls and measures at the network level, and monitor and protect the network traffic and communication, which can increase the security and privacy of the cloud infrastructure. The other options are not the recommendations that will support the move to a cloud infrastructure, as they either do not provide the ability for the network infrastructure to be integrated with the control and data planes, or do not improve the flexibility, efficiency, performance, scalability, reliability, availability, security, or privacy of the cloud infrastructure. References: CISSP - Certified Information Systems Security Professional, Domain 3. Security Architecture and Engineering, 3.5 Implement and manage engineering processes using secure design principles, 3.5.1 Understand the fundamental concepts of security models, 3.5.1.2 Cloud-based systems; CISSP Exam Outline, Domain
3. Security Architecture and Engineering, 3.5 Implement and manage engineering processes using secure design principles, 3.5.1 Understand the fundamental concepts of security models, 3.5.1.2 Cloud-based systems
NEW QUESTION # 1500
What are the MAIN Information Assurance (IA) goals of Virtual Private Network (VPN) solutions?
Answer: A
NEW QUESTION # 1501
Which of the following BEST obtains an objective audit of security controls?
Answer: B
Explanation:
The best option that obtains an objective audit of security controls is to have the security audit performed by an independent third-party. An independent third-party is an entity that is not affiliated with or influenced by the organization or the system that is being audited, and that has the expertise and credibility to conduct the security audit. An independent third-party can provide an unbiased and impartial assessment of the security controls, and identify the strengths and weaknesses of the system or network. An independent third-party can also provide recommendations and best practices for improving the security posture of the system or network.
The other options are not as effective, because they may not be objective, consistent, or comprehensive in their audit of security controls . References: [CISSP CBK, Fifth Edition, Chapter 1, page 49]; [CISSP Practice Exam - FREE 20 Questions and Answers, Question 19].
NEW QUESTION # 1502
What is defined as the rules for communicating between computers on a Local Area Network (LAN)?
Answer: D
Explanation:
Media contention occurs when two or more network devices have data to send at the same time. Because multiple devices cannot talk on the network simultaneously, some type of method must be used to allow one device access to the network media at a time. This is done in two main ways: carrier sense multiple access collision detect (CSMA/CD) and token passing.
In networks using CSMA/CD technology such as Ethernet, network devices contend for the network media. When a device has data to send, it first listens to see if any other device is currently using the network. If not, it starts sending its data. After finishing its transmission, it listens again to see if a collision occurred. A collision occurs when two devices send data simultaneously. When a collision happens, each device waits a random length of time before resending its data. In most cases, a collision will not occur again between the two devices. Because of this type of network contention, the busier a network becomes, the more collisions occur. This is why performance of Ethernet degrades rapidly as the number of devices on a single network increases. In token-passing networks such as Token Ring and FDDI, a special network frame called a token is passed around the network from device to device. When a device has data to send, it must wait until it has the token and then sends its data. When the data transmission is complete, the token is released so that other devices may use the network media. The main advantage of token-passing networks is that they are deterministic. In other words, it is easy to calculate the maximum time that will pass before a device has the opportunity to send data. This explains the popularity of token-passing networks in some real-time environments such as factories, where machinery must be capable of communicating at a determinable interval. For CSMA/CD networks, switches segment the network into multiple collision domains. This reduces the number of devices per network segment that must contend for the media. By creating smaller collision domains, the performance of a network can be increased significantly without requiring addressing changes.
The following are incorrect answers: LAN topologies: Think of a topology as a network's virtual shape or structure. This shape does not necessarily correspond to the actual physical layout of the devices on the network. For example, the computers on a home LAN may be arranged in a circle in a family room, but it would be highly unlikely to find a ring topology there. Common topologies are: bus, ring, star or meshed. See THIS LINK for more information. LAN transmission methods: refer to the way packets are sent on the network and are either unicast, multicast or broadcast. See THIS LINK for more information. Contention Access Control: This is a bogus detractor. Contention is a real term but Contention Access Control is just made up. Contention methods is very closely related to Media Access Control methods. In communication networks, contention is a media access method that is used to share a broadcast medium. In contention, any computer in the network can transmit data at any time (first come-first served). This system breaks down when two computers attempt to transmit at the same time. This is a case of collision. To avoid collision, carrier sensing mechanism is used. Here each computer listens to the network before attempting to transmit. If the network is busy, it waits until network quiets down. In carrier detection, computers continue to listen to the network as they transmit. If computer detects another signal that interferes with the signal it is sending, it stops transmitting. Both computers then wait for random amount of time and attempt to transmit. Contention methods are most popular media access control method on LANs.
Reference(s) used for this question: http://docwiki.cisco.com/wiki/Introduction_to_LAN_Protocols#LAN_Media-Access_Methods
http://en.wikipedia.org/wiki/Contention_%28telecommunications%29
NEW QUESTION # 1503
DRAG DROP
Place the BRP groups below in their properly tiered organizational
structure, from highest to lowest:
Answer:
Explanation:
Explanation:
126-2
Some organizations with mature business resumption plans (BRPs)
employ a tiered structure that mirrors the organizations hierarchy.
Senior management is always the highest level of decision-makers in
the BRP process, although the policy group also consists of upper-level executives. The policy group approves emergency management decisions involving expenditures, liabilities, and service impacts. The next group, the disaster management team, often consists of department and business unit representatives and makes decisions regarding life safety and disaster recovery efforts. The next group, the emergency response team, supplies tactical response to the disaster, and may consist of members of data processing, user support, or persons with first aid and evacuation responsibilities. Source:
Contingency Planning and Management, Business Contingency
Planning 201, by Paul H. Rosenthal May, 2000.
NEW QUESTION # 1504
......
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