An 'IT Policy' is a comprehensive document that outlines the standards, rules, and guidelines for computer systems and their users within an organization. It governs how technology is used and maintained.

InfiniBand is a high-speed interconnect technology used in HPC to connect processors, memory, and storage devices. It enables 'faster data transfer rates' essential for high-performance computing applications.

A 'hypervisor' is software that allows multiple virtual machines to run on a single physical server. Its primary purpose is to manage and allocate resources to these virtual machines.

'Denial of Service' (DoS) is an attack technique where an attacker overwhelms a target system with a high volume of requests or inputs, causing it to become unavailable or crash.

'Normalization' is the process of organizing a database to reduce data redundancy, eliminate anomalies, and improve data integrity. It involves breaking down data into separate tables and defining relationships between them.

To handle a rapidly growing network while enabling routers to learn network paths automatically, 'Dynamic Routing' is the best approach. Dynamic routing protocols, like OSPF or BGP, allow routers to adapt to network changes without manual intervention.

The immediate first step to secure your home network when an unknown device is detected is to 'block the device's MAC address.' This prevents the unknown device from connecting to your network and ensures the security of your network's perimeter.

"SSID" stands for "Service Set Identifier" (Option c). It is a unique name used to identify a wireless network. When connecting to a Wi-Fi network, users select the network with the matching SSID. This helps users distinguish between different networks.

In IT Service Management (ITSM), a 'best practice' refers to a standard or set of guidelines for achieving a specific objective or task effectively. It provides recommendations and proven methods, but it doesn't require the use of a particular tool or approach. A Process Model outlines how a specific process works, a Service Catalog lists available services, and a Change Request Form is used to request changes in IT services.

Single-Tenancy refers to the practice of allocating a dedicated portion of a public cloud for a single tenant or organization, providing isolation and control over resources.