All Chapters Flashcards

1
Q

Name the purpose of the command : show MAC address-table?

A

Shows all Mac table entries of all types

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2
Q

Name the purpose of the command : show mac address-table dynamic?

A

Shows all dynamically learn Mac table entries

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3
Q

Name the purpose of the command show MAC address-table dynamic vlan ‘vlan id’

A

Shows all dynamically learns entries in that VLAN

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4
Q

Name the purpose of the command : show MAC address-table dynamic address ‘mac-address’

A

Shows the dynamically learn Mac table entries with that Mac address

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5
Q

Name the purpose of the command :show MAC address-table dynamic interface ‘interface id’

A

Shows all dynamically learned mac table entries associated with the interface

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6
Q

What does the term flooding mean in CCNA?

A

Means that the switch for copies of the frame of all ports, except for on which the frame was received

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7
Q

What command will let you see dynamically learned Mac addresses?

A

Show MAC address-table dynamic

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8
Q

What command can you use to erase the start up config file

A

Erase startup-config

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9
Q

What are the two types of VLAN?

A

Normal and extended

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10
Q

What is the range of normal Vlans?

A

1-1005

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11
Q

What is the range for extended range vlans?

A

1006-4094

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12
Q

What are the two vlan trunking methods?

A

ISL & 802.1q

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13
Q

Which VLANS cannot be deleted, or used as access port ?

A

VLAN 1,1002-1005

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14
Q

In a LAN, which of the following terms equates the term VLAN?

A

Broadcast domain

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15
Q

Which command will disable Vtp completely?

A

Vtp mode off

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16
Q

What happens when both switches are on switchport mode dynamic auto ?

A

They do not trunk

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17
Q

What does dynamic auto tell the switch?

A

To sit there and wait on the other switch to start the negotiations

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18
Q

What does switch port mode dynamic desirable tell the switch?

A

It asked to switch to both negotiate, as well as to begin negotiation process, rather than waiting on the other device

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19
Q

Cisco recommends disabling trunk negotiation on most ports for

A

Better security

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20
Q

Which command will disable DTP negotiations?

A

Switchport nonegotiate

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21
Q

What are the two roles in stp?

A

Root port & Designated Port

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22
Q

What are the two states in STP?

A

Forwarding & blocking

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23
Q

What are the two temporary state in STP?

A

Listening and Learning

24
Q

What does the listening state in stp do?

A

The interface doesn’t forward frames, the switch removes old Mac table entries which have not received frames.

25
Q

What does the learning state in stp do?

A

Interface in this state still doesn’t forward frames but the switch begins to learn the MAC addresses of frames received on interface

26
Q

How long does it take for for interface to change from blocking to forwarding state in stp?

A

50 seconds

27
Q

What states are considered transitory states in stp?

A

Learning and listening

28
Q

What states are considered stable states in stp?

A

Blocking forwarding disabled

29
Q

RSTP calls the blocking state the ?

A

Discarding state

30
Q

How long does rstp take to converge?

A

5-10 seconds

31
Q

T/F With RSTP each switch independently generates its own hellos ?

A

True

32
Q

RSTP defines the term shared to describe ports connected to a

A

Hub

33
Q

T/F RSTP converges more slowly on shared ports as compared to all p2p ports

A

True

34
Q

STP treats each EtherChannel as a

A

Single link

35
Q

Where is portfast more appropriate to use ?

A

Connections to end-user devices

36
Q

What does the term access switches refer to?

A

Switched used to connect to endpoints devices

37
Q

What does the term distribution switch refer to?

A

Switches that don’t connect to endpoints but rather connect to each access switch

38
Q

Which stp can you configure with the command spanning-tree command?

A

MST, PVST, RAPID-PVST

39
Q

Which power of the BID will Cisco let you configure ?

A

Priority part

40
Q

How many trees does RSTP create?

A

1 the common spanning tree

41
Q

How many trees does RPSVT+ create?

A

One tree for each and every VLAN

42
Q

What is the multicast address for RSTP

A

0180.C200.0000

43
Q

What is the multicast address for RPVST+?

A

0100.0CCC.CCCD

44
Q

What is the command that lets an engineer set the switches priority in that VLAN?

A

Spanning-tree VLAN ‘x’ root primary | secondary

45
Q

What is one difference that LACP have compared to PAgP

A

LACP supports up to 16 links in a channel while PAgP supports 8 links

46
Q

What keywords are use to enable PAgP?

A

Desirable and auto

47
Q

What keywords are used to enable LACP?

A

Active and passive

48
Q

What are the two rules to follow in subnet?

A

Address in the same subnet are not separated by a router
Addresses in different subnets are separated by at least one router

49
Q

What’s the formula for number of usable IP address

A

2^h-2

50
Q

What are ways that Internet community tried to solve ipv4 network exhaustion?

A

IPv6, CIDR, NAT

51
Q

What is something that routers have that switches don’t?

A

On/off button

52
Q

What layer does the line status refer to ?

A

Layer 1status

53
Q

What layer does the protocol status refer to?

A

Layer 2

54
Q

If the line status is up and the protocol status of down it is usually caused by ?

A

A mismatched data-link layer configuration

55
Q

The route table list both the ?

A

Subnet id and subnet mask

56
Q

P2P serial wan links use either?

A

HDLC or PPP