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Networking/Cloud Architecture > Udemy Course Bronze > Flashcards

Udemy Course Bronze Flashcards

1
Q

What is bare-metal server?

A

a physical server without an OS

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2
Q

What is a hypervisor?

A

a host or virtual server installed on a physical server

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3
Q

What is a virtual machine?

A

A guest or instance that runs on the installed hypervisor

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4
Q

What is a virtual desktop?

A

A desktop that you can access from any laptop

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5
Q

What is P2V?

A

physical to virtual

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6
Q

What is V2V?

A

virtual to virtual

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7
Q

What is VM template?

A

a template that other VM machines can use to instantiate

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8
Q

What is the difference between cloud and virtualization?

A

the cloud is a remote location that utilizes virtualization to bring services to customers

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9
Q

What is VMware?

A

the leader in virtualization technolog

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10
Q

What does LAN stand for?

A

Local area network

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11
Q

What is a MAC address?

A

Media Access Control Address is a unique layer 2 address given to every network interface on an Ethernet network

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12
Q

What is a NIC?

A

Network Interface Card

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13
Q

Which command can be used to show the MAC address and other pertinent network information for Mac and Linux computers?

A

ifconfig

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14
Q

True or False: A switch is a broadcast domain

A

True

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15
Q

What is a unicast?

A

a one to one communication

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16
Q

Do hubs has MAC tables?

A

No

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17
Q

What is a layer 2 segment?

A

a broadcast domain

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18
Q

Does an IP address interact with a NIC?

A

No

19
Q

Are IP addresses unique within a network?

A

Yes

20
Q

What is an ARP request?

A

A broadcast to discover the MAC associated with an IP address

21
Q

What do BUM traffic have in common?

A

It is sent out to multiple computers

22
Q

What layer is an IP address?

A

Layer 3

23
Q

What is an unknown unicast?

A

When a switch is unsure of what the destination MAC is for a unicast, it sends out a broadcast to find out

24
Q

What makes up BUM traffic?

A

broadcast, unknown unicast, multicast

25
Q

What is a multicast?

A

When a single source sends a multicast in order to reach a group of specified recipients

26
Q

True or False: An ARP request is an attempt to learn the MAC table of the switch

A

False, not learning the switch, learning the IP address

27
Q

What is a layer 2 bridge?

A

A thing with MAC addresses that connects two hubs that helps reduce collisions

27
Q

What is a router?

A

A device that splits up switches to create different broadcast domains

27
Q

True or False: A hub is a collision domain

A

True

27
Q

What is a switch?

A

A thing that takes in all communications between computers and directs them to their desires destinations. This prevents collisions domains

28
Q

Does each router interface have a unique IP address?

A

Yes

29
Q

What is 10.1.1.0 /24 is an example of?

A

network address

30
Q

What is the highest possible address in a network range?

A

broadcast address

31
Q

What is a VLAN?

A

A virtual local area network

32
Q

True or False: Each VLAN is a broadcast domain and has its own MAC Table?

A

true

33
Q

What is WAN?

A

A wide area network connects local area networks that are geographically far apart

34
Q

What is an edge router?

A

A router that sets at the edge of a network to connect it to the internet or a WAN

35
Q

What is an IPSEC VPN?

A

A device that securely connects one network to another through the internet

36
Q

True or False: A layer 2 vpn is unable to have systems with the same IP address scheme at both sides of a VPN

A

False

37
Q

What is DHCP?

A

Dynamic Host Control Protocol is a way to automatically assign IP addresses to computers

38
Q

When a machine requests a dynamic IP by issuing a DHCP what is the result?

A

A layer 2 ethernet broadcast is sent

39
Q

What is DNS?

A

Domain Name System is a human friendly way to read IP addresses

40
Q

What is a NAT?

A

A network address translation subsitutes a private IP for an internet routable public IP

Networking/Cloud Architecture (1 decks)

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