Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Cisco ICND 2 > Section 4 > Flashcards

Section 4 Flashcards

Understanding Layer 3 Redundancy

1
Q

What does IGP stand for?

A

Interior Gateway Protocol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are IGPs used for?

A

The exchange or routing information within an autonomous system.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are common IGPs?

A

RIP, IGRP, EIGRP, OSPF, IS-IS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does FHRP stand for?

A

First Hop Redundancy Protocol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are three common FHRPs?

A

HSRP, VRRP, GLBP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does HSRP stand for?

A

Hot Standby Router Protocol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What RFC defines HSRP?

A

RFC 2281

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is HSRP?

A

A Cisco proprietary FHRP designed to create a redundancy framework between network routers or switches in order to achieve default gateway failover.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many active routers forward traffic when using HSRP?

A

One

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does VRRP stand for?

A

Virtual Router Redundancy Protocol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which FHRP is an open standard?

A

VRRP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How many active routers forward traffic when using VRRP?

A

One

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does GLBP stand for?

A

Gateway Load Balancing Protocol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How many active routers forward traffic when using GLBP?

A

Multiple routers can be active and load balance traffic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Is GLBP an open standard or Cisco proprietary

A

Cisco proprietary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What indicates to the standby router that a route has failed to the active router?

A

The standby router stops receiving hello messages from the active router.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What happens when the standby router stops receiving hello messages from the active router?

A

The standby router assumes the role of active (forwarding) router

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What information does the standby router begin using once it becomes the active router?

A

The IP and MAC address of the virtual router.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What RFC defines HSRP?

A

RFC 2281

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What RFC defines VRRP?

A

RFC 5798

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What do you call a group of routers in the same HSRP group?

A

Hot Standby Router Group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

How many routers are active (forwarding traffic) in an HSRP group?

A

One

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What information is shared between all the routers in a Hot Standby Router Group?

A

The virtual IP and virtual MAC of the virtual router.

24
Q

What command do you use to verify the state of HSRP on a Cisco device?

A

show standby

25
Q

What does RFC stand for?

A

Request For Comment

26
Q

Which router responds to default gateway ARP request with the virtual router MAC address?

A

The active router

27
Q

How does the active HSRP router respond to default gateway ARP request?

A

With the virtual router’s virtual MAC address.

28
Q

What do active and passive HSRP routers use to communicate?

A

Hello messages

29
Q

What responsibility does the HSRP standby router assume if it does not receive hello messages from the active router?

A

Forwarding of packets

30
Q

What is the HSRP active router?

A

The router currently forwarding packets for the virtual router.

31
Q

What is the HSRP standby router?

A

The primary backup router for the hot standby router group.

32
Q

What are two additional features that can be used on HSRP routers?

A
  1. Interface tracking

2. Load balancing

33
Q

What does ARP stand for?

A

Address Resolution Protocol

34
Q

What is ARP used for?

A

To map IP addresses to MAC addresses.

35
Q

What RFC defines ARP?

A

826

36
Q

What does RIP stand for (in relation to networking)?

A

Routing Information Protocol

37
Q

What type of IGP is RIP?

A

Distance Vector

38
Q

What does RIP use as a routing metric?

A

Hop count

39
Q

What needs to be configured on an interface to add a router to a hot standby router group?

A
  1. Establish the HSRP group ID

2. Add the virtual router virtual IP address (VIP)

40
Q

What optional configuration can be done on the interface when adding a router to a hot standby router group?

A
  1. Set priority
  2. Enable preemption
  3. Configure HSRP version
41
Q

What is the default priority in HSRP?

A

100

42
Q

When preemption is configured, which priority takes precedence and becomes the active router?

A

The higher priority

43
Q

What does SVI stand for?

A

Switched Virtual Interface

44
Q

What command establishes the HSRP group ID and virtual router IP address?

A

standby [group #] ip [ip address]

45
Q

What command sets the priority value used in choosing an active router?

A

standby [group #] priority [priority]

46
Q

What is the range that be used for a priority value in HSRP?

A

1 - 255

47
Q

What happens when you configure an HSRP router to preempt?

A

The router that has the highest priority will become the active router whether it is the current active router or not.

48
Q

What command configures an HSRP router to preempt

A

standby [group #] preempt

49
Q

What command sets the HSRP version to be used on an HSRP router?

A

standby version [1/2]

50
Q

What versions of HSRP can be used on a router?

A

HSRPv1 and HSRPv2

51
Q

What is the default version of HSRP that is used if a version is not specified in the configuration?

A

HSRV version 1

52
Q

What should you check to verify HSRP?

A
  1. Which router is active
  2. Which router is standby
  3. What is the HSRP priority configured
  4. Preemption status (enabled or disabled)
53
Q

What are four common HSRP issues?

A
  1. Wrong standby IP address
  2. Wrong HSRP group configured
  3. HSRP version mistmatch
  4. Blocked HSRP packets
54
Q

What is the HSRP version 1 multicast IPv4 address?

A

224.0.0.2

55
Q

What is the HSRP version 1 transport layer protocol and port?

A

UDP port 1985

56
Q

What is the HSRP version 2 multicast IPv4 address?

A

224.0.0.102

57
Q

What is the HSRP version 2 transport layer protocol and port?

A

UDP port 1985

Cisco ICND 2 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions