Routing Protocols Quiz - Networking Concepts
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Questions and Answers

What code represents a route learned via RIP?

  • C
  • D
  • O
  • R (correct)

The gateway of last resort is set in the given routing table.

False (B)

What is the subnet mask for the network 172.16.0.0/24?

255.255.255.0

The directly connected subnet 172.16.252.0 is connected to interface ______.

<p>Serial0</p> Signup and view all the answers

Match the following routes with their status:

<p>172.16.254.0/24 = possibly down 172.16.251.0/24 = possibly down 172.16.252.0 = directly connected 172.16.2.0 = directly connected</p> Signup and view all the answers

Which routing protocol uses the code 'C'?

<p>Connected (C)</p> Signup and view all the answers

There are a total of 11 subnets listed in the routing table.

<p>True (A)</p> Signup and view all the answers

Which interface is used for routing the subnet 172.16.5.0/24?

<p>Serial1</p> Signup and view all the answers

What does the 'le' option in a prefix-list configuration represent?

<p>Less than or equal to (D)</p> Signup and view all the answers

The ge option allows prefixes that are less than or equal to the specified length.

<p>False (B)</p> Signup and view all the answers

What is the purpose of the prefix list in the context of routing?

<p>To filter specific ranges of IP addresses in routing protocols.</p> Signup and view all the answers

Barkis’s prefix list permits the prefix 2001:db8:0:100::/62 and any prefix that has the same first _____ bits.

<p>62</p> Signup and view all the answers

Match the following commands to their functions:

<p>ipv6 router rip emily = Configures RIP for IPv6 distribute-list prefix-list copperfield in Serial1 = Filters incoming routes using the prefix list ipv6 prefix-list copperfield permit 2001:db8:0:100::/62 le 64 = Permits a specific range of IPv6 addresses filter outgoing RIP IPv4 routes = Restricts advertised routes</p> Signup and view all the answers

Which of the following is the benefit of filtering routes at the source?

<p>Reduces bandwidth waste (A)</p> Signup and view all the answers

RIPng is a routing protocol that only supports IPv4 addresses.

<p>False (B)</p> Signup and view all the answers

What is the outcome of advertising a large number of routes only to discard them later?

<p>It wastes bandwidth.</p> Signup and view all the answers

What does the code 'D' represent in the routing table?

<p>EIGRP routes (C)</p> Signup and view all the answers

The gateway of last resort is set in the routing table shown.

<p>False (B)</p> Signup and view all the answers

What is the default administrative distance of EIGRP routes?

<p>90</p> Signup and view all the answers

The IP address 172.16.3.0 is directly connected to _____ 1.

<p>Ethernet</p> Signup and view all the answers

Match the routing code with its meaning:

<p>C = Connected route S = Static route R = RIP route D = EIGRP route</p> Signup and view all the answers

Which of the following IP addresses is learned via EIGRP in the routing table?

<p>172.16.254.0 (B), 172.16.5.0 (D)</p> Signup and view all the answers

The routing table shows a total of 11 subnets for the network 172.16.0.0/24.

<p>True (A)</p> Signup and view all the answers

What type of route is represented by the code 'R'?

<p>RIP route</p> Signup and view all the answers

What command is used to control the source of routes at redistribution points?

<p>distribute-list (A)</p> Signup and view all the answers

Bumble’s configuration allows all addresses in the OSPF domain.

<p>False (B)</p> Signup and view all the answers

What metric does Bumble use when redistributing RIP into OSPF?

<p>100</p> Signup and view all the answers

The command 'access-list 1 permit ______' allows addresses in the OSPF domain.

<p>192.168.4.0</p> Signup and view all the answers

Match the access-list number with its corresponding permitted address:

<p>1 = 192.168.5.0 2 = 192.168.6.0</p> Signup and view all the answers

Which route is directly connected according to the routing table?

<p>192.168.3.0/24 (D)</p> Signup and view all the answers

What type of route is indicated by 'O E2' in the routing table?

<p>External type 2 OSPF route</p> Signup and view all the answers

The gateway of last resort is set in the routing configuration provided.

<p>False (B)</p> Signup and view all the answers

What state did the line protocol on Interface Ethernet0 change to?

<p>Down (A)</p> Signup and view all the answers

The gateway of last resort was set in the provided routing information.

<p>False (B)</p> Signup and view all the answers

What is the administrative distance configured for the OSPF routes in Bumble's configuration?

<p>130</p> Signup and view all the answers

The command 'redistribute rip metric _____' is used in Bumble's OSPF configuration.

<p>100</p> Signup and view all the answers

Match the IP route codes with their descriptions:

<p>C = Connected O = OSPF R = RIP B = BGP</p> Signup and view all the answers

Which interface is used for the directly connected network 192.168.3.0/24?

<p>Serial0 (B)</p> Signup and view all the answers

Bumble's OSPF configuration does not include a distance command.

<p>False (B)</p> Signup and view all the answers

What area is designated in Bumble’s OSPF configuration for network 192.168.3.1?

<p>0</p> Signup and view all the answers

What is the administrative distance of routes learned via OSPF in the routing table?

<p>110 (C)</p> Signup and view all the answers

The routing table indicates that the network 192.168.5.0/24 is in an up state.

<p>False (B)</p> Signup and view all the answers

The 192.168.5.0/24 network is ______ connected via Serial0.

<p>directly</p> Signup and view all the answers

Match the network prefixes with their corresponding administrative distances:

<p>R = 120 O = 110 C = 0 D = 90</p> Signup and view all the answers

Which statement about the gateway of last resort is true?

<p>It is not set in the routing table. (B)</p> Signup and view all the answers

Identify the interface that experienced a state change to down.

<p>Serial0</p> Signup and view all the answers

All routes with an administrative distance of 130 are less preferred than routes with an administrative distance of 120.

<p>True (A)</p> Signup and view all the answers

Flashcards

IPv6 Prefix List

A list that filters IPv6 network prefixes, allowing or denying certain ranges of addresses based on matching the initial bits of the IP prefix.

Prefix-list command (IPv6)

Used in network routing protocols like RIPng to define a list of IPv6 prefixes to filter inbound or outbound routes.

ge option in prefix list

Specifies that the prefix should be greater than or equal to a specific prefix.

le option in prefix list

Specifies that the prefix should be less than or equal to a specific prefix.

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Route Filtering

A process of selecting which routing updates to accept or reject based on criteria.

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distribute-list

Command used to configure network routing protocols to apply a filter list defined by a prefix list or access list.

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RIPng

Routing Information Protocol for IPv6. Used for routing IPv6 network information between routers.

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Bandwidth

The rate at which data can be transferred over a network connection.

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RIP Route Status

RIP routes marked as possibly down, indicating a potential network problem.

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Down RIP Routes

RIP routes that have been marked as not accessible, suggesting a connection outage or issue.

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Network Subnetting

A method to divide a larger network into smaller ones.

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Directly Connected

Network interfaces directly connected to a router, providing a physical connection.

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Gateway of Last Resort

The default router for forwarding packets outside the local network.

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IP Routing Protocol

A set of rules that determine how a router sends data packets across a network.

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Routing Table Entry

Information in a router's table that shows known networks, and optimal paths to them.

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Routing via IP Address

Routing data packages through a specified IP address.

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EIGRP Route

An EIGRP route is a routing protocol that utilizes the Enhanced Interior Gateway Routing Protocol to forward data packets to destinations. This method employs a dynamic routing algorithm. It utilizes a metric (distance) that is based on a combination of factors.

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Directly Connected Route

A route to a network that is directly connected to a router interface.

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Routing Protocol Codes

Codes used in the 'show ip route' command to denote the routing protocol used for a given route. For example, 'C' for connected routes, 'D' for EIGRP routes, 'S' for static routes, 'R' for RIP routes.

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EIGRP Metric

The cost or distance associated with an EIGRP route . Determined by various criteria, including bandwidth, load, delay, and reliability.

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Static Route

A manually configured route that is not learned from a routing protocol. It is hardcoded into the routing table.

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RIP Route

A routing protocol that utilizes a 'hop-by-hop' method, using hop count as the routing metric.

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Show IP Route Command

A command used to display information about all routes currently in the router's routing table. This information includes destination networks, next hop, and protocol (C, S, I, R, M, etc).

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Subnetted Network

A network divided into multiple smaller subnets, each with its own unique IP address range. This is in contrast to a single, entire network.

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Possibly Down Route

A RIP route that might be unreachable but the router is still trying to reach it.

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Directly Connected Network

A network interface directly physically connected to a router.

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Distribute-list command

A command used to control the source of routes at redistribution points.

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OSPF process

An Interior Gateway Protocol (IGP) used for routing within an autonomous system.

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RIP process

Another Interior Gateway Protocol (IGP) used for routing within an autonomous system.

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Access-list 1

An access list used to permit specific routes destined for OSPF redistribution.

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Access-list 2

An access list used to permit specific routes destined for RIP redistribution.

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redistribute ospf 1 metric 100

This command redistributes routes from OSPF into RIP, setting the metric to 100.

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redistribute rip metric 2

This command redistributes routes from RIP into OSPF, setting the metric to 2.

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Distance Command

Used in routing protocols like OSPF to adjust the administrative distance of routes, influencing route preference. A lower distance value makes a route more preferable.

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Administrative Distance

A metric used by routing protocols to rank the trustworthiness of routes learned from different sources. Routes with lower administrative distance are preferred.

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network 192.168.3.1 0.0.0.0 area 0

This OSPF command configures the router's network interface and assigns it to an OSPF area, allowing it to advertise routes within that area.

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distance 130

This command alters the administrative distance of all routes learned from RIP to 130. This value indicates a lower trust level compared to OSPF-learned routes.

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distance 110 0.0.0.0 255.255.255.255 1

This command sets the administrative distance for all routes learned through RIP, matching the specified subnet mask (255.255.255.255) to a specific distance value of 110, effectively changing the preference level for routes.

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What is the purpose of using the 'distance' command in OSPF?

The 'distance' command is used to adjust the administrative distance of routes learned from different sources. This helps control route preference and ensures that routes from trusted sources are prioritized.

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How does the 'redistribute rip metric 100' command work in OSPF?

This command allows an OSPF router to learn routes from RIP and advertise them to other OSPF routers. The 'metric' value of 100 is used to influence how OSPF ranks these RIP routes compared to native OSPF routes.

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Study Notes

Route Filtering

  • Route filtering gives network administrators tight control over route advertisements. Filters specify what routes are redistributed between protocols. This is important for security and to control the size of routing tables.

Route Redistribution

  • Route redistribution occurs when a routing protocol advertises routes learned from other protocols, static routes, or direct connections.

  • This is useful for consolidating multiple routing domains in a network.

  • But, conflicts in routing metrics and administrative distances can lead to inaccurate routing, loops, or black holes when multiple routing protocols are used.

Administrative Distances

  • Administrative distance is a metric associated with a route, representing its believability. Lower administrative distance routes are preferred over higher ones.

  • This helps determine which route to use when there are multiple routes to the same destination.

  • Different routing protocols have different administrative distances, such as RIP (120) and EIGRP (90). An administrator can configure custom administrative distances to influence route selection.

Route Maps

  • Route maps are similar to access lists, but more flexible. They can match route attributes (like source or destination). They can also change route attributes.

  • They're commonly used for policy-based routing or redistribution.

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Related Documents

Chapter 13. Route Filtering | Routing TCP/IP, PDF

Description

Test your knowledge on routing protocols and configurations with this quiz focused on RIP, subnet masks, and prefix lists. Explore various concepts like directly connected interfaces and routing table entries to enhance your understanding of network routing. Perfect for students in networking courses or IT professionals looking to refresh their skills.

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