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A: VMware vShield is a collection of virtual appliances built for the VMware vSphere platform. Its virtual appliances provide security services for vSphere VMs, supporting activities such as firewall protection and anti-malware.
The parameter VSWR is a measure that numerically describes how well the antenna is impedance matched to the radio or transmission line it is connected to. VSWR stands for Voltage Standing Wave Ratio, and is also referred to as Standing Wave Ratio (SWR). VSWR is a function of the reflection coefficient, which describes the power reflected from the antenna. If the reflection coefficient is given by , then the VSWR is defined by the following formula: