Which layer of the OSI model includes HTTP?
Answer(s): A
The Application layer (Layer 7 of the OSI model) includes Hypertext Transfer Protocol (HTTP), which is used for web communication. This layer provides network services directly to applications and users.Network layer deals with IP addressing and packet routing.Session layer manages connections but does not include HTTP.Transport layer ensures reliable data transmission but does not handle application protocols.
A host is already set up with an operating system. An administrator wants to install a hypervisor atop the operating system to allow for setting up virtual machines.Which hypervisor should be used?
Answer(s): D
A Type 2 hypervisor (hosted hypervisor) runs on top of an existing operating system and allows for the creation of virtual machines. Examples include VMware Workstation and Oracle VirtualBox.Type 1 hypervisors run directly on hardware without an OS (e.g., VMware ESXi, Microsoft Hyper-V).Open-source and proprietary describe licensing models, not hypervisor types.
A start-up company wants to build its computer network by starting with the base-level resources offered by a cloud service. In this way, the company won't have to buy physical hardware but can still have complete control over operating systems and other software.Which cloud service model should be used?
Answer(s): C
Infrastructure as a Service (IaaS) provides virtualized computing resources, including virtual machines, storage, and networking, while allowing users full control over operating systems and applications. Examples include AWS EC2 and Google Compute Engine.SaaS provides ready-to-use applications (e.g., Google Docs).FaaS runs code in response to events (e.g., AWS Lambda).PaaS provides development environments but not full infrastructure control.
A company wants to use a cloud service to obtain virtual machines with pre-installed and configured software.Which cloud service model should be used?
Platform as a Service (PaaS) provides a pre-configured computing environment that includes an operating system, runtime, and development tools, making it ideal for developers who want a ready- to-use platform. Examples include Google App Engine and Microsoft Azure App Services.SaaS provides fully hosted applications, not just pre-configured virtual machines.IaaS provides infrastructure without pre-installed software.FaaS executes specific functions without persistent infrastructure.
A company wants to implement virtual machines with a focus on security and efficiency.Which type of hypervisor fits the need described in the scenario?
A Type 1 hypervisor (bare-metal hypervisor) runs directly on the hardware, providing better security and efficiency compared to Type 2 hypervisors. It reduces attack surfaces and optimizes resource utilization. Examples include VMware ESXi and Microsoft Hyper-V.Type 2 hypervisors rely on a host OS, making them less secure and efficient.Open-source and proprietary describe licensing models, not hypervisor types.
Post your Comments and Discuss WGU Network-and-Security-Foundation exam prep with other Community members:
Our website is free, but we have to fight against AI bots and content theft. We're sorry for the inconvenience caused by these security measures. You can access the rest of the Network-and-Security-Foundation content, but please register or login to continue.