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CCNA > Recent additions > Flashcards

Recent additions Flashcards

1
Q

What are the EIGRP k values, in order?

A 
K1 = Bandwidth modifier
K2 = Load modifier
K3 = Delay modifier
K4 = Reliability modifier
K5 = Additional Reliability modifier
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2
Q

3 steps to create a key for use in routing authentication

A
  1. Create the key chain
  2. Create the key
  3. Set the key string
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3
Q

2 steps to have EIGRP use a key chain in authentication

A
  1. Under a given interface, set up authentication for the routing protocol.
  2. Staying under that same interface, bind the key-chain that will be used to the auth line.
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4
Q

Syntax to create a key chain

A

conf t

key chain name

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5
Q

Syntax to create a key under a key chain

A

key #

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6
Q

Syntax to set a text string for a key

A

key-string text-string

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7
Q

Syntax to set up authentication for eigrp under an interface.

A

conf t
int gi1/0
ip authentication mode eigrp asn md5

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8
Q

Syntax to bind a key chain to EIGRP authentication

A

conf t
int gi1/0
ip authentication key-chain eigrp asn key-chain name

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9
Q

Syntax to add automatic summarization to EIGRP

A

auto-summary

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10
Q

Change the bandwidth or delay on an interface for EIGRP

A

conf t
int gi1/0
bandwidth value
delay value

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11
Q

Syntax to set the hello and hold timers for EIGRP

A

conf t
int gi1/0
ip eigrp hello-interval seconds
ip eigrp hold-time seconds

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12
Q

Configuration to allow for unequal cost load balancing in EIGRP

A

variance multiplier

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13
Q

Syntax to instantiate a DHCP pool

A

ip dhcp pool pool-name

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14
Q

Syntax to set the lease time for a DHCP pool

A

lease days hours min

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15
Q

Syntax to set the default gateway for a DHCP pool

A

default-router IP address

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16
Q

Syntax to set the DNS server for a DHCP pool

A

dns-server DNS IP

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17
Q

2 versions of the syntax to set the subnet for a DHCP pool

A

network subnet subnet mask

network subnet /subnet length

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18
Q

Syntax to set the domain name for a DHCP pool

A

domain-name name

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19
Q

In Frame Relay, what does LMI stand for?

A

Local Management Interface

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20
Q

What does DLCI stand for?

A

Data Link Connection Identifier

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21
Q

What encapsulation is set on a serial interface that will connect to a frame relay network?

A

frame-relay

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22
Q

Syntax to set a serial interface to frame relay encapsulation

A

conf t
int s1/0
encapsulation frame-relay

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23
Q

2 options for encapsulation frame-relay

A
  1. cisco

2. ietf

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24
Q

When leaving off the specific encapsulation type for the command “encapsulation frame-relay”, what is the default?

A

cisco

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25
Q

Syntax of the frame-relay map command

A

frame-relay map ip ip address dlci [broadcast]

26
Q

Syntax to bind a dlci to an interface

A

frame-relay interface-dlci dlci

27
Q

Command to show InArp data

A

show frame-relay map

28
Q

What is the successor?

A

The successor is the path that has the best metric.

29
Q

What is the Feasible Distance?

A

The metric of a given route from the current router’s point of view.

30
Q

What is the Reported Distance?

A

The metric of a given route from the neighbor’s point of view.

31
Q

If a path meets the feasibility condition, but does not fall within variance parameters, what happens to it?

A

It is held in reserve as a feasible successor, one which may take over if the current successor fails.

32
Q

What is the feasibility condition?

A

The reported distance of a path must be less than the FD of the path on the current router.

33
Q

What happens to a path who’s FD falls within variance parameters but does not meet the feasibility condition?

A

It’s not installed in the routing table, nor will it be a Feasible Successor

34
Q

How does a router determine if a path can be a Feasible Successor?

A

If the path’s RD is less that the FD, it will be a Feasible Successor.

35
Q

When you show the routing table, what letter signifies that route was learned via EIGRP?

A

D

36
Q

In the 4 layer TCP/IP model, what are the names of the layers?

A
  1. Application
  2. Transport
  3. Internet
  4. Link
37
Q

In the 5 layer TCP/IP model, what are the names of the layers?

A
  1. Application
  2. Transport
  3. Network
  4. Data Link
  5. Physical
38
Q

What does the Application layer in the TCP model map to in the OSI model?

A

Application
Presentation
Session

39
Q

What does the Transport layer in the TCP model map to in the OSI model?

A

Transport

40
Q

What does the Internet or Network layer in the TCP model map to in the OSI model?

A

Network

41
Q

What does the Link layer in the TCP model map to in the OSI model?

A

Data Link

Physical

42
Q

What are the first 4 syslog level names, starting with level 0?

A

0 - Emergency
1 - Alert
2 - Critical
3 - Error

43
Q

What are the last 4 syslog level names?

A

4 - Warning
5 - Notification
6 - Informational
7 - Debugging

44
Q

What severity levels will be sent to the syslog server if “logging trap 4” is configured?

A 
Levels 0 - 4
Emergency
Alert
Critical
Error
Warning
45
Q

If “logging trap informational” is set, what numerical levels will be set to syslog?

A

0 - 6

46
Q

What does PPP stand for?

A

Point to Point Protocol

47
Q

What are 2 PPP control protocols?

A

LCP

NCP

48
Q

What do NCP and LCP stand for?

A

Network Control Protocols

Link Control Protocol

49
Q

What’s a glaring difference between NCP and LCP?

A

LCP is a single protocol, whereas NCP is a suite of protocols that are each specific to a Layer 3 protocol.

50
Q

4 features of PPP LCP

A
  1. Loop detection
  2. Error detection
  3. Multilink support
  4. Authentication
51
Q

What 2 types of authentication are supported by PPP?

A

PAP

CHAP

52
Q

What do PAP and CHAP stand for?

A

Password Authentication Protocol

Challenge Handshake Authentication Protocol

53
Q

Which PPP auth protocol sends a password in clear text?

A

PAP

54
Q

What are the 3 steps of a successful CHAP authenticatoin?

A
  1. Authenticator sends challenge packet.
  2. Caller hashes password etc and sends back hashed value.
  3. Authenticator compares submitted value to their own hashed value, and if they match it allows the caller in.
55
Q

Command to set PPP on a serial interface

A

conf t
int s1/0
encapsulation ppp

56
Q

2 general steps to have a PPP link use PAP or CHAP

A
  1. Configure the username/password for the calling router.

2. Set the serial link to use PPP PAP

57
Q

What will the state of a serial link be if PPP authentication fails?

A

Up/down

58
Q

Syntax to set a username/pass for use in PPP authentication

A

username caller hostname password password

59
Q

Syntax to have a serial interface use CHAP

A

conf t
int s1/0
ppp authentication chap

60
Q

2 useful debug commands for PPP

A

debug ppp authentication

debug ppp negotiation

CCNA (11 decks)

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