ICND1 Flashcards

Pass ICND1and ICND2 exams

1
Q

Segments operate at what layer of the OSI model?

A

Transport

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2
Q

Some People Fear Birthdays

A

Segments Packets Fragments Bits

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3
Q

Please Do Not Throw Sausage Pizza Away

A

Physical Data link Network Transport Session Presentation Application

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4
Q

What does reliability mean in the network?

A

How dependable is the network.

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5
Q

What does availability mean?

A

Is the network there.

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6
Q

What does topology mean?

A

What is the layout of the network.

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7
Q

What device operates at the physical layer 1?

A

Hub or repeater or bit spitter

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8
Q

What devices operate at the data link layer 2?

A

switches and bridges

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9
Q

What are layer 2 addresses called?

A

mac addresses

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10
Q

What devices operates at the network layer 3?

A

routers

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11
Q

What addresses operate at this layer?

A

IP addresses

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12
Q

What does the layer 4 provide?

A

TCP for reliable or UDP for unreliable transmissions

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13
Q

What happens at layer 5 session layer

A

establishes sessions.

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14
Q

What happens at layer 6 presentation layer?

A

formatting of data, translation of one data format to another

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15
Q

What happens at layer 7 application layer?

A

provides network services to the user: email, ftp, etc.

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16
Q

Some People Fear Birthdays

A

Segments, Packets, Frames, Bits

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17
Q

network layer protocol data unit

A

packet

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18
Q

data link layer protocol data unit

A

frame

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19
Q

transport layer protocol data unit

A

segment

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20
Q

physical layer protocol data unit

A

bits

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21
Q

application, presentation, session protocol data unit

A

data

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22
Q

local broadcast address -all hosts

A

255.255.255.255

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23
Q

directed broadcast address

A

10.255.255.255 - directed to all hosts on a network all 1’s in host bits

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24
Q

reserved ip address network

A

all 0’s in host bits.

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25
Q

reserved ip address broadcast

A

all 1’s in host bits.

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26
Q

DHCP - DORA

A

Discover , Offer, Request, Acknowledgement messages

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27
Q

Well known , Registered, Dynamic ports

A

1 -1023, Lotus mail 1024- 49151, sourc ports 49152 - 65535

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28
Q

Switches increase the number of collision domains which ______ the number of collisions.

A

decrease

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29
Q

Hubs create ____ big collision domain

A

one

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30
Q

A packet is also called a _______

A

datagram

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31
Q

Give another name for a switch

A

transparent bridge

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32
Q

A bridge is also called an ________

A

extender

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33
Q

bridges increase the number of _______ domains

A

collision

34
Q

switches increase the number of _______ domains

A

collision

35
Q

switches and bridges increase the number of collison domains which _______ the number of collisions.

A

decrease or reduce

36
Q

TAB key

A

command line completion

37
Q

ctrl-A

A

go to beginning of the command line

38
Q

ctrl-E

A

go to the end of the command line

39
Q

Backspace

A

remove one character to the left of the cursor

40
Q

ctrl-U

A

erase

41
Q

ctrl-shift-6

A

interrupt IOS process

42
Q

ctrl-C

A

cancel current command and exit config mode

43
Q

ctrl-Z

A

end config mode, return to EXEC prompt

44
Q

ctrl-P, up arrow

A

redisplays previous commands

45
Q

ctrl-B

A

move back 1 character

46
Q

ctrl-F

A

move forward 1 character

47
Q

esc-B

A

move back one word

48
Q

esc-F

A

move forward one word

49
Q

ctrl-W

A

erase word to the left of cursor

50
Q

enter commands to setup mgt address on switch

A

interface vlan 1; ip address 10.1.1.2; 255.255.255.0; end; ip default-gateway 10.1.1.1

51
Q

what does the end command do?

A

returns to priv exec mode

52
Q

What commands are used to setup ssh?

A
config terminal
1.  username cisco password cisco
2. ip domain-name mydomain.com
3. crypto key zeroize rsa
4. crypto key generate rsa.
5. ip ssh version 2
line vty 0 4
6.  login local
7. transport input ssh
53
Q

give an example of the interface range command.

A

interface range fastethernet 0/3 - 4 , fastethernet 0/7 - 10

54
Q

What does the ITU-R do?

A

Regulates RF frequencies that can be used for wireless.

55
Q

What does the IEEE do?

A

Creates/Controls the wireless technical standards, 802.11 for example.

56
Q

What does the Wi-Fi Alliance do?

A

Offers certification for interoperability between vendors products.

57
Q

Encryption method for WPA2 - Ent and Personal

A

AES-CCMP

58
Q

Encryption method for WPA - Ent and Personal

A

TKIP

59
Q

Authentication Method for WPA and WPA2 - Enterprise

A

802.1x, EAP

60
Q

Authentication Method for WPA and WPA2 - Personal

A

PSK - Pre shared Key

61
Q

What are the 3 rules for extending the Basic Service Set Area

A
  1. Same SSID - Service Set Identifier.
  2. Non-overlapping channels - 1 & 6 for example.
  3. 20 percent overlap between channels.
62
Q

RIP is a ____ ______ routing protocol

A

distance vector

63
Q

RIP uses ____ _____ as its routing metric

A

hop count

64
Q

OSPF is a _____ _____ routing protocol

A

link state

65
Q

OSPF uses _____ as its routing metric

A

cost

66
Q

The 4 commonly used metrics in routing protocols are:

A
  1. Bandwidth
  2. Cost
  3. Delay
  4. Hop Count
67
Q

The _____ the metric number, better the path

A

smaller

68
Q

switches create one big ______ domain

A

broadcast

69
Q

switches create independent _____ domains

A

collision

70
Q

switches increase the number of ____ domains, which decrease the number of _____

A

collision, collisions

71
Q

routers create _____ broadcast domains

A

smaller

72
Q

broadcasts do not traverse the _____

A

router

73
Q

show sessions shows ________ outside of our device

A

connections

74
Q

show user shows who is connecting ____ our device.

A

into

75
Q

DCE side of the WAN connection sets the _____ or speed

A

clocking

76
Q

provide configuration for rip setup

A
enable
configure terminal
router rip
version 2
network 10.0.0.0
network 192.168.1.0
end
77
Q

give command to display routing protocols

A

show ip protocols

78
Q

give command to display routes

A

show ip route

79
Q

give CDP command to list other devices

A

show cdp neighbors

80
Q

give CDP command to get ip address of connected neighbor

A

show cdp entry R8

81
Q

give CDP command to show statistics

A

show cdp traffic

82
Q

give command to show configuration register

A

show version