500-325 Practice Questions

The three key security policies on a vSwitch port group are Promiscuous Mode, MAC Address Changes, and Forged Transmits. For security reasons, these should all be set to 'Reject' unless there is a specific requirement (like a nested hypervisor or network monitoring tool). Accepting these can open the network to spoofing and sniffing attacks. MTU size and NIC teaming policies affect performance and redundancy but are not the primary security settings.

The Cisco Business Edition 4000 (BE4000) is a cloud-managed, appliance-based IP telephony solution designed for small businesses with up to 200 phones. It provides essential features like call control, voicemail, and auto-attendant in a simple, easy-to-deploy package, making it ideal for organizations with limited IT resources.

False. While PCCE simplifies the deployment of Contact Center Enterprise, it still requires multiple virtual machines for its components. Core components like the Call Router, Logger, CVP, Finesse, and CUIC are typically deployed on separate, dedicated VMs (often in redundant pairs) to ensure proper resource allocation, scalability, and high availability.

The VMPT process relies on the administrator filling out a Configuration Data Sheet, which is an Excel spreadsheet. This sheet captures all the necessary details for the deployment, such as IP addresses, hostnames, NTP servers, admin passwords, and license information. VMPT then parses this file to automatically generate the unattended installation answer files for each UC application.

When remote IP connectivity to the CIMC fails, the most direct way to access its configuration is through the local console. Connecting a monitor and keyboard (a 'crash cart' or KVM) allows the administrator to enter the CIMC configuration utility during server boot (typically by pressing F8) to verify or correct the IP address, subnet mask, and gateway settings.

Intel Virtualization Technology (VT-x) or AMD-V for AMD processors is the hardware-assisted virtualization feature that must be enabled in the BIOS. This feature allows the hypervisor to create and manage virtual machines efficiently. While Hyper-Threading, Turbo Boost, and C-States affect performance, the hypervisor will not function without VT-x/AMD-V enabled.

Cisco does not support Physical-to-Virtual (P2V) migration tools like VMware Converter for its real-time UC applications due to potential timing and driver issues. The only supported method is to perform a full backup of the source server using the built-in Disaster Recovery System (DRS), deploy a new VM from the correct OVA template, and then restore the DRS backup to the new VM.

The BE6000H (High Density) is designed for deployments of up to 1000 users and supports multiple co-resident applications, including CUCM, CUC, IM&P, and Expressway. The BE4000 is for much smaller deployments. The BE6000S is for small deployments up to 150 users. The BE7000H is for larger deployments (over 1000 users) and would be oversized for this scenario.

Cisco UC applications handle real-time voice and video traffic, which is highly sensitive to latency and jitter. By using reservations, the hypervisor guarantees that the specified amount of CPU and memory is always available to the VM, preventing resource contention and ensuring consistent performance. Setting a limit could throttle the application, while not setting a reservation could lead to resource starvation in a busy environment.

Processor C-States and other power-saving technologies (often labeled as Power Technology, SpeedStep, or similar) can cause latency for real-time applications by dynamically adjusting CPU frequency and core states. For optimal performance of UC applications, Cisco recommends disabling these power-saving features in the BIOS and setting the power profile to 'Maximum Performance' or 'OS Control'. VT-x is required for virtualization and should be enabled. Demand Scrubbing is a memory feature and is less likely to cause this type of latency.