Security+ Exam-2-B

Which of the following cloud computing solutions delivers software applications to a client either over the internet or on a local area network?

• DaaS

• SaaS

• IaaS

• PaaS

Which of the following best describes the Platform as a Service (PaaS) cloud computing service model?

• PaaS delivers everything a developer needs to build an application onto the cloud infrastructure.

• PaaS delivers software applications to the client either over the internet or on a local area network.

• PaaS delivers infrastructure to the client, such as processing, storage, networks, and virtualized environments.

• PaaS stores and provides data from a centralized location without the need for local collection and storage.

Which of the following is not true regarding cloud computing?

• Typical cloud computing providers deliver common business applications online that are accessed from another web service or software like a web browser.

• Cloud computing is software, data access, computation, and storage services provided to clients through the internet.

• The term cloudis used as a metaphor for the internet.

• Cloud computing requires end user to have knowledge of the physical location and configuration of the system that delivers the services.

Which of the following are true concerning the Virtual Desktop Infrastructure (VDI)?

• In the event of a widespread malware infection, the administrator can reimage user desktops by pushing an image out to each user desktop system over the network.

• In the event of a widespread malware infection, the administrator can quickly reimage all user desktops on a few central servers.

• User desktop environments are provided by individual desktop systems instead of by remote servers.

• Roaming profiles must be configured to allow mobile users to keep their same desktop environment across systems.

Which of the following is a disadvantage of software-defined networking (SDN)?

• SDN creates centralized management.

• SDN facilitates communication between hardware from different vendors.

• SDN gathers network information and statistics.

• SDN standards are still being developed.

You have opted to use software-defined networking (SDN) to manage, control, and make changes to your network. You want to be able to use software to configure and intelligently control the network, rather than relying on the individual static configuration files that are located on each network device.

SDN consists of three layers:

Application layer

Control layer

Physical layer

Which of the following describes what the SDN control layer does to networking devices that comprise the physical layer?

• The control layer removes the control plane from networking devices and creates a virtual control plane for each device.

• The control layer removes the control plane from networking devices and creates a single control plane.

• The control layer uses southbound APIs to communicate with the control plane in each networking device and creates a single control plane.

• The control layer interfaces with the control plane in each networking device and creates a virtual control plane.

Software-defined networking (SDN) uses a controller to manage the devices. The controller is able to inventory hardware components in the network, gather network statistics, make routing decisions based on gathered data, and facilitate communication between devices from different vendors. It can also be used to make wide-spread configuration changes on just one device.

Which of the following best describes an SDN controller?

• The SDN controller is hardware.

• The SDN controller is a virtual networking device.

• The SDN controller is software.

• The SDN controller is a networking protocol.

Which of the following devices facilitates communication between different virtual machines by checking data packets before moving them to a destination?

• Virtual firewall

• Hypervisor

• Virtual router

• Virtual switch

Which of the following devices is computer software, firmware, or hardware that creates and runs virtual machines?

• Hypervisor

• Virtual switch

• Virtual router

• Virtual firewall

Which of the following statements about virtual networks is true?

• Each virtual network must be associated with a single physical network adapter.

• A virtual network is dependent on the configuration and physical hardware of the host operating system.

• Accessing network resources requires that the operating system on the virtual machine be configured on an isolated network.

• A virtual network is independent of the configuration and physical hardware of the host operating system.