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Networking > Chapter 6 p243-275 > Flashcards

Chapter 6 p243-275 Flashcards

1
Q

What is a NIC

A

network interface card

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2
Q

what do NICs do?

A

enable workstations, servers, printers etc to receive and transmit data

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3
Q

What layers have NIC

A

physical layer and data layer

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4
Q

what is a main bus or system bus?

A

memory, components and hard disk and NIC used to transmit data

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5
Q

How do busses differ?

A

the amount of data/capacity on its path

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6
Q

How does the amount of data allowed in a bus affect the device?

A

more bits = more speed

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7
Q

What is an expansion slot?

A

a slot that allows an electrical connection to add a device – NIC, Sound card etc

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8
Q

What is a PCIe

A

Peripheral Component Interconnect Express – an expansion board

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9
Q

where do you find the kind of NIC your computer has?

A

inside the box/case

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10
Q

What is a peripheral NIC?

A

a flash drive or external NIC via usb port

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11
Q

what is an onboard NIC

A

a NIC connected or integrated into the motherboard not via an expansion board to save space

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12
Q

once you install a NiC what do you have to ensure?

A

that the correct device driver software is installed.

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13
Q

How do you test a NIC

A

with a loopback plug

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14
Q

What is a repeater?

A

an older way of regenerating a digital signal

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15
Q

Does a repeater interpret data?

A

no, it just repeats it

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16
Q

Why might repeaters be used?

A

in a bus topology to repeat signals along the path

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17
Q

What is a hub?

A

a repeater with more than one output port

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18
Q

How is a bridge different from a repeater?

A

it can interpret mac addresses

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19
Q

what layers are repeaters and bridges?

A

Repeaters – physical, bridges- data

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20
Q

What is an advantage of using a bridge not a repeater?

A

it can expand a network w/o causing more collisions

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21
Q

what does a bridge create to help it send data?

A

a table of MAC addresses

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22
Q

What is a switch?

A

a connectivity device that subdivides a network into smaller pieces

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23
Q

What is a way to describe a switch

A

a multiport bridge

24
Q

What is a benefit of a switch?

A

separates bandwidth, prevents collisions

25
Q

What are the two most frequent methods of switching?

A

Cut-through mode and store-and-forward mode

26
Q

What is cut through mode?

A

the switch reads the frame’s header and decides where to send the data

27
Q

what is a problem with cut through mode?

A

it has difficulty with faulty packets, and errors get through

28
Q

What is a good thing about cut through mode?

A

speed

29
Q

What is store and forward

A

switch waits for the entire packet, checks it, then sends it

30
Q

What is a VLAN

A

virtual local network

31
Q

What is the purpose of a VLAN

A

to separate a group for security, heavy/unpredictable traffic, priority etc

32
Q

What is STP

A

spanning tree protocol

33
Q

What does STP do?

A

it prevents a storm of data being repeated by multiple switches in the tree formation. It figures out the best path for the data

34
Q

What is a router?

A

a a multi-port connectivity device that sends data to the right place

35
Q

what layer do routers operate?

A

network layer

36
Q

what does a router do?

A

connects dissimilar networks, layer 3 addressing, best path, reroute traffic

37
Q

What is a routing table?

A

identifies which router serves as a house, where hosts are located

38
Q

what is an interior router?

A

directs data within a LAN, does not connect to the internet, just internal computers

39
Q

what is an exterior router?

A

connects to the internet

40
Q

what is a border router?

A

connects a business with its ISP

41
Q

what is dynamic routing?

A

automatic calculation of the best path, and keeps track.

42
Q

What is static routing

A

network admin configures the pathways, less efficient

43
Q

what is best path?

A

most efficient route for data to take

44
Q

what is routing protocol?

A

the way routers communicate with each other… not routable protocols

45
Q

what is convergence time?

A

the amount of time it takes for a router to find the best path

46
Q

What is RIP

A

routing information protocol

47
Q

what is the limit of RIP

A

15 hops, broadcasts to other routers, so slows network, and not between LANs just within

48
Q

What is the difference between an interior gateway protocol and an exterior gateway protocol?

A

interior within a LAN, Exterior between LANS on a WAN

49
Q

What is Distance Vector protocol

A

Based on distance, send over WAN, hops, latency, traffic, not just hops

50
Q

What is LinkState?

A

a protocol which gets routers to map a network and find the best path between nodes (Distance vector rely on neighbours for data path info)

51
Q

What is OSPF?

A

Open Shortest Path First protocol

52
Q

What does OSPF do?

A

allows the router to change the path of data using other routers.

53
Q

What is IS-IS?

A

Intermediate system to intermediate system, layer 3 protocol, IGP (Internal only)

54
Q

What is EIGRP?

A

Enhanced interior gateway routing protocol

55
Q

What does EIGRP do?

A

hybrid, only cisco routers, preferred over OSPF

56
Q

what is a gateway?

A

a device that connect two dissimilar networks. Slower speeds cause congestion.

Networking (11 decks)

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