Cisco Updated 350-401 Exam Questions and Answers by lilian

Graphical user interface, application Description automatically generated

A virtual machine (VM) is an emulation of a computer system that provides the functionality of a physical computer. To run a VM, you need a hypervisor, which is software that creates and runs virtual machines. The hypervisor sits between the hardware and the VM and allocates physical resources such as CPU, memory, and storage to the VM. There are two types of hypervisors:

Type 1 hypervisor: Also known as a bare-metal hypervisor, it runs directly on the host’s hardware to control the hardware and to manage guest operating systems. Examples include VMware ESXi, Microsoft Hyper-V, and Xen.

Type 2 hypervisor: Also known as a hosted hypervisor, it runs on a conventional operating system just like other computer programs. Examples include VMware Workstation and Oracle VirtualBox.

While a Type 1 hypervisor does not require a host operating system, a Type 2 hypervisor does. Therefore, the correct answer is B, as a hypervisor (either Type 1 or Type 2) and physical server hardware are required to run a VM.

In a Cisco network fabric, an AP (Access Point) in local mode is connected directly to a fabric edge switch. This setup allows the AP to communicate with the fabric’s control plane nodes, which are responsible for managing and orchestrating the network fabric. The fabric edge switchserves as the access layer in the fabric architecture, providing connectivity to endpoints like APs, while also interfacing with the fabric’s core and distribution layers.

References := Cisco’s official documentation on network fabric 

MPLS OAM (Operations, Administration, and Maintenance) is used to monitor and troubleshoot MPLS networks. To prevent packets from being forwarded beyond the service provider domain when the LSP (Label Switched Path) is down, the destination address for the LSP echo request packet should be in the 127.x.y.z/8 network. This special address range is reserved for loopback and internal testing, ensuring that the packet does not leave the local network even if the LSP is not operational. References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) v1.01.