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CCENT > Commands > Flashcards

Commands Flashcards

1
Q

Get into Privileged Executive Mode

A

enable

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2
Q

Get into Global Configuration Mode

A

configuration terminal

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3
Q

Get into Interface Configuration Mode

A

interface s0/0

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4
Q

Get into Line Configuration Mode

A

line console 0

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5
Q

Get into Router Configuration Mode

A

router ospf 1

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6
Q

Save configurations on the device

A

copy running-config startup-config

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7
Q

Configure privileged executive mode password

A

enable secret cisco

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8
Q

Configure telnet

A

line vty 0 15
login
password cisco

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9
Q

Show information of nearby network devices

A

show cdp neighbors detail

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10
Q

Set the hostname

A

hostname R1

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11
Q

Set default gateway

A

ip default-gateway 192.168.1.1

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12
Q

Configure VLAN interface

A

int vlan 1

ip address 192.168.1.200 255.255.255.0

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13
Q

Set speed and duplex on an interface

A

speed 100

duplex full

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14
Q

Encrypt passwords

A

service password-encryption

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15
Q

Configure ssh

A 
username jordan secret cisco
ip domain-name lab.local
crypto key generate rsa
line vty 0 15
transport input ssh
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16
Q

enable port security

A

switchport port security

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17
Q

Allow only one device at a time to access a port

A

switchport port-security max 1

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18
Q

Allow only one unique device to access a port.

A

switchport port-security mac-address FFFFFFFFFFFF

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19
Q

Change a port to an access port and a trunk port

A

switchport mode access

switchport mode trunk

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20
Q

Display the security configurations of f0/0

A

show port-security interface f0/0

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21
Q

Configure a static route

A

ip route 192.168.2.0 255.255.255.0 192.168.1.1

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22
Q

Configure a default route

A

ip route 0.0.0.0 0.0.0.0 192.168.1.1

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23
Q

Configure a default route for OSPF

A

default-information originate

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24
Q

Configure router on a stick

A 
interface f0/0
no ip address
interface f0/0.1
encapsulation dot1q 1 native
ip address 10.0.0.1 255.255.255.0
int f0/0.10
encapsulation dot1q 10
ip address 10.10.10.1 255.255.255.0
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25
Q

Change the OSPF cost reference to 1GB

A

router ospf 1

auto-cast reference-bandwidth 1000

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26
Q

Enable OSPFv2 and advertise a network

A

router ospf 1

network 192.168.1.1 0.0.0.0 area 0

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27
Q

Change the priority number of f0/0 for DR/BDR to 5

A

int f0/0

ip ospf priority 5

28
Q

Change OSPFv2 cost of f0/0 to 20

A

int f0/0

ip ospf cost 20

29
Q

For OSPFv2, don’t send hello packets to interface f0/0

A

router ospf 1

passive-interface f0/0

30
Q

Inject configured default routes into OSPFv2

A

router ospf 1

default-information originate

31
Q

Enable IPv6 routing and OSPFv3 and give the router an ID of 1.1.1.1

A

ipv6 unicast-routing

ipv6 router osrouter-id 1.1.1.1

32
Q

Advertise f0/0 in OSPFv3

A

int f0/0

ipv6 ospf 1 area 0

33
Q

Display OSPFv2 and OSPFv3 area ID and DR/BDR info

A

show ip ospf interface

show ipv6 ospf interface

34
Q

Display nearby router OSPFv2 and OSPFv3 info

A

show ip ospf neighbor

show ipv6 ospf neighbor

35
Q

Display ipv4 and ipv6 routes

A

show ip route

show ipv6 route

36
Q

Display ARP table

A

show mac address-table dynamic

37
Q

Change OSPFv2 cost of f0/0 to 5

A

int f0/0

ip ospf cost 5

38
Q

Only send hello packets to f0/0 for OSPFv2

A

router ospf 1
passive-interface default
no passive-interface f0/0

39
Q

Create an access list that denies 10.0.0.1 from communicating with 10.0.1.1 in HTTP

A

access-list 100 deny tcp host 10.0.0.1 host 10.0.1.1 eq 80

access-list 100 permit ip any any

40
Q

Create an access list that denies 10.0.0.0 from echo requesting 11.0.0.0

A

access-list 100 deny icmp 10.0.0.0 0.255.255.255 11.0.0.0 0.255.255.255 echo
access-list 100 permit ip any any

41
Q

Run OSPFv3, add a router ID of 1.1.1.1 and advertise netowrk 192.168.1.0.

A

ipv6 router ospf 1
router-id 1.1.1.1
int f0/0
ipv6 ospf 1 area 0

42
Q

Display OSPFv2 area ID and DR/BDR information

A

show ip ospf interface

43
Q

Display OSPFv2 information of nearby routers

A

show ip ospf neighbor

44
Q

Display OSPFv3 area ID and DR/BDR information

A

show ipv6 ospf interface

45
Q

Display OSPFv3 information of nearby routers

A

show ipv6 ospf neighbor

46
Q

Display ipv4 and ipv6 routes

A

show ip route

show ipv6 route

47
Q

Display ARP table

A

show mac address-table dynamic

48
Q

Create an access list that denies 10.0.0.1 and permits 10.0.0.0

A

access-list 1 deny 10.0.0.1 0.0.0.0

access-list 1 permit 10.0.0.0 0.255.255.255

49
Q

Apply an access list to interface g0/0 in-bound

A

int g0/0

ip access-group 1 in

50
Q

Create an access list that denies 10.0.0.1 from communicating with 10.0.1.1 in HTTP

A

access-list 100 deny tcp host 10.0.0.1 host 10.0.1.1 eq 80

access-list 100 ip any any

51
Q

Create an access list that denies 10.0.0.0 from echo requesting 11.0.0.0

A

access-list 100 deny icmp 10.0.0.0 0.255.255.255 11.0.0.0 0.255.255.255 echo
access-list 100 permit ip any any

52
Q

Allow only 10.0.0.50 to SSH or Telnet to the router

A

access-list 1 permit host 10.0.0.50
line vty 0 15
access-class 1 in

53
Q

Deny 10.0.0.50 from sending http traffic to 11.0.0.11

A 
ip access-list extended 100
deny tcp host 10.0.0.50 host 11.0.0.11 eq 80
permit any any
int g0/0
ip access-group 100 in
54
Q

Configure static NAT by setting 25.1.1.25 as the inside global IP for the inside private IP 192.168.1.2

A 
ip nat inside source static 192.168.1.2 25.1.1.25
int g0/0
ip nat inside
int g0/1
ip nat outside
55
Q

Configure dynamic NAT by setting 25.1.1.25 - 30 as the inside global IP range for the inside private IP network 192.168.1.0

A

ip nat pool INSIDEPUBLIC 25.1.1.25 25.1.1.30 netmask 255.255.255.0
access-list 1 permit 192.168.1.0 0.0.0.255
ip nat inside source list 1 pool INSIDEGLOBAL
int g0/0
ip nat inside
int g0/1
ip nat outside

56
Q

Configure PAT by setting 25.1.1.25 as the inside global IP range for the inside private IP network 192.168.1.0

A

access-list 1 permit 192.168.1.0 0.0.0.255
ip nat inside source list 1 interface g0/1 overload
int g0/0
ip nat inside
int g0/1
ip nat outside

57
Q

Display NAT translation

A

show nat translations

58
Q

Display general overview of NAT configuration

A

show nat statistics

59
Q

Remove all nat translation translations

A

clear ip nat translation*

60
Q

Configure 25.1.1.25 as the NTP server

A

ntp server 25.1.1.25 version 4

61
Q

Display all NTP servers the router is configured to use.

A

show ntp associations

62
Q

Confirm that the router is receiving info from the NTP server

A

show ntp status

63
Q

Enable DHCP client

A

int g0/0

ip address dhcp

64
Q

Display which IP address have been leased to who

A

show ip dhcp binding

65
Q

Display details of a pool of IP’s used for DHCP

A

show ip dhcp pool POOLNAME

66
Q

Confirm trunking is functioning

A

show interface trunk

CCENT (2 decks)

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