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Flashcards in IP Connectivity Q/A's Deck (25)
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1

What does the network prefix identify?

network class

2

The Network ID/Subnet Mask is used to divide... in what two things?

IP address into networks and host address

3

Next hop address is the next address that...?

Next address that a router is going to forward data packets to

4

Administrative distance in routing is use to determine what two things of a route?

distance and trustworthiness

5

Metrics are calculated with the administrative distance in order to determine what?

best routing decisions

6

The gateway of last resort is a default route where?

all packets are forwarded to reach other routers.

7

Routing protocols use what three things to choose the best routing decisions?

Administrative distance
Metric
Prefix length

8

What is a floating static route?

backup static route that is used in the event of a failure

9

What is a default route?

Where all packets forward to by default

10

First hop redundancy protocol (FHRP) eliminates...?

single points of failure

11

What two things are used in order for form the first hop redundancy protocol (FHRP) backup active and standby routers over the network?

Virtual IP and MAC Address

12

What type of messages are sent from the Hot Standby Router (HSRP) to other HSRP routers?

Hello Messages

13

When the state of a standby router stops receiving hello messages, what happens?

router transitions from standby to the active router

14

When HSRP routers are elected as the active and standby router in what priority order is the election made?

What is the default priority value of HSRP routers?

If the priority of HSRP routers tie, is the highest or lowest IP address used for it's election?

highest and then lowest priority

100

highest IP address

15

What must be enabled on a router in order for it to fail-over when using a router redundancy protocol?

pre-emption

16

What router redundancy protocol is open standard and similar to HSRP?

(VRRP) Virtual Router Redundancy Protocol

17

What type of router redundancy protocol is used to load balance across multiple routers?

(GLBP) Gateway Load Balancing Protocol

18

Link state routing protocols are responsible for originating information about...?

the router, its directly connected links, and the state of those links

19

How do routers elect it's router ID?

highest IP address with longest prefix /#

20

What is the Customer Edge router?

router facing the ISP

21

What is the Provider Edge router?

ISP router facing the customer

22

What is the Provider Core router?

Core internal router of the ISP

23

MPLS Customer Edge CE routers peer at what layer with the service provider?

Layer 3

24

MPLS operate using two routers types of routers internal to the ISP?

Provider Core Router
Provider Edge Router

25

Does the customer edge CE router run MPLS over to the providers edge router?

no