THINGS YOU NEED TO KNOW Flashcards
ipconfig /flushdns command provides you with what ?
the means to flush and reset the contents of the DNS client resolver cache
VM escape refers to?
malware running on a guest OS jumping to another guest or the host
(VM escape is the biggest threat to virtualized systems)
A virtual network interface card (vNIC) represents what?
The VM is connected to a network (Can have multiple)
A rogue VM is what?
is a VM that has been installed without authorization
VM sprawl is what?
the uncontrolled deployment of more and more VMs
A dynamic IP address should be used for what?
client workstations and devices to ensure they are easy to configure and less prone to human error
A static IP address should be used for what?
servers to ensure they are easy to find, access, and manage on the network
Automatic Private IP Addressing (APIPA) is a feature of Windows-based operating systems that enables what?
a computer to automatically assign itself an IP address when there is no Dynamic Host Configuration Protocol (DHCP) server available to perform that function
(considered a Link-local adress)
STP (Shielded Twisted Pair) is a type of cabling that can help prevent what?
electrical interferences or cross-talk
(cross-talk can cause CRC “Cyclic Redundancy Check” errors)
Coaxial and fiber are what number of CAT cables?
CAT 6
what are we talking about when we say Intel CPU architecture implemented to expose two or more logical processors to the OS to deliver performance benefits
(virtualized environment)
HyperThreading (HT)
( it’s like multi-core but for virtual machines)
what am I talking about when i say a microprocessor on a single integrated circuit with two or more separate processing units, called cores (for example, dual-core or quad-core), each of which reads and executes program instructions
multi-core processing
(for physical computers)
(not virtual)
VM can communicate between the host and the other VMs
internal
VMs would have internet access
external
create a switch that is usable only by the VMs
private
(The VMs cannot use the switch to communicate with the host)
