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ICND1 > The Functions of Networking > Flashcards

The Functions of Networking Flashcards

1
Q

Topology that is effectively connected by one single cable

A

Bus topology

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2
Q

Topology that refers to the logical paths that the signals use to travel from one point on a network to another

A

logical topology

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3
Q

Topology that is effectively connected by one single cable

A

Bus topology

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4
Q

topology with one central connection device with an additional network device.

A

extended-star topology

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5
Q

Topology that refers to the logical paths that the signals use to travel from one point on a network to another

A

logical topology

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6
Q

Topology that refers to the logical paths that the signals use to travel from one point on a network to another

A

logical topology

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7
Q

topology that resembles the spokes in a bicycle wheel with one central connection device where all segments meet

A

star topology

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8
Q

topology with one central connection device with an additional network device.

A

extended-star topology

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9
Q

topology where all devices on the network are connected in the form a of a circle.

A

ring topology

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10
Q

topology where all devices connect to each other for redundancy and fault tolerance

A

full-mesh topology

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11
Q

topology where at least one device maintains multiple connections to all other devices without having all other devices fully meshed

A

partial-mesh topology

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12
Q

what tcp/ip layer is http

A

application

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13
Q

what tcp/ip layer is pop3

A

application

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14
Q

what tcp/ip layer is smtp

A

application

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15
Q

what tcp/ip layer is t1

A

data link

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16
Q

what tcp/ip layer is ip

A

network

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17
Q

what tcp/ip layer is ethernet

A

data link

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18
Q

what tcp/ip layer is ppp

A

data link

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19
Q

what tcp/ip layer is t1

A

data link

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20
Q

layer of osi that provides an interface between the communications software and the applications. also defines processes for user authentication

A

application

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21
Q

layer of osi whose main purpose is to define and negotiate formats such as ascii text, ebcdic text, binary, bcd, and jpeg. encryption is also defined by this layer

A

presentation

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22
Q

layer of osi defines how to start, control, and end conversations

A

session

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23
Q

layer of osi that deal with physical transmission medium including connectors, pins, electrical currents, etc

A

physical

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24
Q

osi layer device hosts

A

application/presentation/session or transport

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25
Q

osi layer device firewalls

A

application/presentation/session or transport

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26
Q

osi layer device router

A

network

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27
Q

osi layer device lan switch

A

data link

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28
Q

osi layer device wireless access point

A

data link

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29
Q

osi layer device cable modem

A

data link

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30
Q

osi layer device dsl modem

A

data link

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31
Q

osi layer device lan hub

A

physical

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32
Q

osi layer device lan repeater

A

physical

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33
Q

osi layer device cables

A

physical

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34
Q

10base-t speed/name/ieee standard

A

10mbps/ethernet/802.3

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35
Q

100base-t speed/name/ieee standard

A

100mbps/fast ethernet/802.3u

36
Q

1000base-lx speed/name/ieee standard

A

1000mbps/gigabit ethernet/802.3z

37
Q

1000base-t speed/name/ieee standard

A

1000mbps/gigabit ethernet/802.3ab

38
Q

10gbase-t speed/name/ieee standard

A

10gbps/10 gig ethernet/802.3an

39
Q

to send data, two devices follow rules called an

A

encoding scheme

40
Q

how many bits in a mac address

A

48 bits

41
Q

how many bytes long is a mac address

A

6 bytes

42
Q

an address that represents one internet to the Ethernet LAN

A

unicast address

43
Q

universally unique part of the mac address,

A

oui - organizationally unique identifier

44
Q

oui - how many bytes/where is it located

A

first 3 bytes (24 bits)

45
Q

media access control 802.3 defines the mac sublayer of ieee ethernet

A

MAC

46
Q

3 other names often used instead of MAC address. These terms describe the 6-byte address of the LAN interface card

A

Ethernet address, NIC address LAN address

47
Q

the 6-byte address assigned by the vendor making the card

A

burned-in address

48
Q

a term for a mac address that represents a single lan interface

A

unicast

49
Q

address that means “all devices that reside on this LAN right now”

A

broadcast address

50
Q

on Ethernet, an address that implies some subset of all devices currently on the Ethernet lan

A

multicast address

51
Q

the only field in the ethernet trailer that gives the receiving node a way to compare results with the sender, to discover whether errors occurred in the frame

A

fcs - frame check sequence

52
Q

often used as synonyms in telco terminology; makes reference to the electrical circuit between two endpoints

A

leased circuit/circuit

53
Q

links use serial lines

A

serial link/ serial line

54
Q

refers to the fact that the topology stretches between two points, and two points only.

A

point-to-point link/line

55
Q

specific type of leased line that transmits at 1.544 mbps

A

t1

56
Q

refers to the fact that the data sent over the line cannot be copied by other telco customers

A

private line

57
Q

router, serial interface card, and csu/dsu that belongs to or resides the customer’s property

A

cpe - customer premise equipment

58
Q

serial cable male end that is connected to the customers router

A

dte - data terminal equipment

59
Q

serial cable female end that is connected to the service providers router and provides the clocking for the serial connection

A

dce - data communications equipment

60
Q

the process of hosts and routers forwarding ip packets, while relying on the underlying lans and wans to forward the bits

A

ip routing

61
Q

addresses used to identify a packet’s source and destination host computer

A

ip addressing

62
Q

protocol that aids routers by dynamically learning about the ip address groups so that a router knows where to route ip packets so that they go to the right destination host

A

ip routing protocol

63
Q

another name for the default router

A

default gateway

64
Q

how many bytes is a ip v4 header

A

4 bytes wide, total of 20 bytes

65
Q

class A space

A

1-126 unicast

66
Q

class B space

A

128-191 unicast

67
Q

class C space

A

192-223 unicast

68
Q

reserved ip space

A

127

69
Q

class D space

A

224-239 multicast

70
Q

class E space

A

240-255 experimental

71
Q

FTP data port

A

20/tcp

72
Q

FTP control port

A

21/tcp

73
Q

SSH port

A

22/tcp

74
Q

telnet port

A

23/tcp

75
Q

SMTP port

A

25/tcp

76
Q

DNS port

A

53/tcp or udp

77
Q

DHCP port

A

67, 68 udp

78
Q

TFTP port

A

69 udp

79
Q

HTTP port WWW

A

80/tcp

80
Q

POP3 port

A

110/tcp

81
Q

SNMP port

A

161/udp

82
Q

SSL port

A

443/tcp

83
Q

the volume of bits per second needed for the application to work well

A

bandwidth

84
Q

the amount of time it takes one ip packet to flow from sender to receiver

A

delay

85
Q

variation in delay

A

jitter

86
Q

the percentage of packets discarded by the network before they reach the destination, which when using tcp, requires retransmission

A

loss

87
Q

uniform resource locator

A

url-web address

ICND1 (2 decks)

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