Chapter 7 Test Prep

What type of scenario would be best served by using a Platform as a Service (PaaS) cloud model? A. A group of developers needs access to multiple operating systems and the runtime libraries that the OS provides. B. An organization wishes to gain access to applications through an online user interface, while maintaining compatibility across operating systems. C. An organization needs to have a hosted virtual network infrastructure for their services, which are run on virtual machines. D. A small organization needs to have high availability for their web server.

A. A group of developers needs access to multiple operating systems and the runtime libraries that the OS provides.

Which type of cloud service model involves hardware service that are provided virtually, including network infrastructure devices such as virtual servers? A. IaaS B. PaaS C. SaaS D. XaaS

A. IaaS

A community cloud is a service shared between multiple organizations, but not available publicly. A. True B. False

A. True

An enterprise-wide VPN can include elements of both the client-to-site and site-to-site models. A. True B. False

A. True

Digital certificates are issued, maintained, and validated by an organization called a certificate authority (CA). A. True B. False

A. True

Office 365 is an example of an SaaS implementation with a subscription model. A. True B. False

A. True

PPP can support several types of Network layer protocols that might use the connection. A. True B. False

A. True

The Virtual Network Computing (VNC) application uses the cross-platform remote frame buffer (RFB) protocol. A. True B. False

A. True

A Type 2 hypervisor installs on a computer before any OS, and is therefore called a bare-metal hypervisor. A. True B. False

B. False

After L2TP establishing a VPN tunnel, GRE is used to transmit L2TP data frames through the tunnel. A. True B. False

B. False

FTPS (FTP Security or FTP Secure) and SFTP (Secure FTP) are two names for the same protocol. A. True B. False

B. False

The HTTPS (HTTP Secure) protocol utilizes the same TCP port as HTTP, port 80. A. True B. False

B. False

What cloud service model involves providing applications through an online user interface, providing for compatibility with a multitude of different operating systems and devices? A. IaaS B. SaaS C. XaaS D. PaaS

B. SaaS