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ICND1 Flashcards

Pass ICND1and ICND2 exams (82 cards)

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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
reserved ip address broadcast
all 1's in host bits.
26
DHCP - DORA
Discover , Offer, Request, Acknowledgement messages
27
Well known , Registered, Dynamic ports
1 -1023, Lotus mail 1024- 49151, sourc ports 49152 - 65535
28
Switches increase the number of collision domains which ______ the number of collisions.
decrease
29
Hubs create ____ big collision domain
one
30
A packet is also called a _______
datagram
31
Give another name for a switch
transparent bridge
32
A bridge is also called an ________
extender
33
bridges increase the number of _______ domains
collision
34
switches increase the number of _______ domains
collision
35
switches and bridges increase the number of collison domains which _______ the number of collisions.
decrease or reduce
36
TAB key
command line completion
37
ctrl-A
go to beginning of the command line
38
ctrl-E
go to the end of the command line
39
Backspace
remove one character to the left of the cursor
40
ctrl-U
erase
41
ctrl-shift-6
interrupt IOS process
42
ctrl-C
cancel current command and exit config mode
43
ctrl-Z
end config mode, return to EXEC prompt
44
ctrl-P, up arrow
redisplays previous commands
45
ctrl-B
move back 1 character
46
ctrl-F
move forward 1 character
47
esc-B
move back one word
48
esc-F
move forward one word
49
ctrl-W
erase word to the left of cursor
50
enter commands to setup mgt address on switch
interface vlan 1; ip address 10.1.1.2; 255.255.255.0; end; ip default-gateway 10.1.1.1
51
what does the end command do?
returns to priv exec mode
52
What commands are used to setup ssh?
``` 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
give an example of the interface range command.
interface range fastethernet 0/3 - 4 , fastethernet 0/7 - 10
54
What does the ITU-R do?
Regulates RF frequencies that can be used for wireless.
55
What does the IEEE do?
Creates/Controls the wireless technical standards, 802.11 for example.
56
What does the Wi-Fi Alliance do?
Offers certification for interoperability between vendors products.
57
Encryption method for WPA2 - Ent and Personal
AES-CCMP
58
Encryption method for WPA - Ent and Personal
TKIP
59
Authentication Method for WPA and WPA2 - Enterprise
802.1x, EAP
60
Authentication Method for WPA and WPA2 - Personal
PSK - Pre shared Key
61
What are the 3 rules for extending the Basic Service Set Area
1. Same SSID - Service Set Identifier. 2. Non-overlapping channels - 1 & 6 for example. 3. 20 percent overlap between channels.
62
RIP is a ____ ______ routing protocol
distance vector
63
RIP uses ____ _____ as its routing metric
hop count
64
OSPF is a _____ _____ routing protocol
link state
65
OSPF uses _____ as its routing metric
cost
66
The 4 commonly used metrics in routing protocols are:
1. Bandwidth 2. Cost 3. Delay 4. Hop Count
67
The _____ the metric number, better the path
smaller
68
switches create one big ______ domain
broadcast
69
switches create independent _____ domains
collision
70
switches increase the number of ____ domains, which decrease the number of _____
collision, collisions
71
routers create _____ broadcast domains
smaller
72
broadcasts do not traverse the _____
router
73
show sessions shows ________ outside of our device
connections
74
show user shows who is connecting ____ our device.
into
75
DCE side of the WAN connection sets the _____ or speed
clocking
76
provide configuration for rip setup
``` enable configure terminal router rip version 2 network 10.0.0.0 network 192.168.1.0 end ```
77
give command to display routing protocols
show ip protocols
78
give command to display routes
show ip route
79
give CDP command to list other devices
show cdp neighbors
80
give CDP command to get ip address of connected neighbor
show cdp entry R8
81
give CDP command to show statistics
show cdp traffic
82
give command to show configuration register
show version

ICND1 (2 decks)

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