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Routing and switching > Dynamic Routing Chapter 3 > Flashcards

Dynamic Routing Chapter 3 Flashcards

1
Q

Which dynamic routing protocol was developed to interconnect different Internet service providers?

BGP
EIGRP
OSPF
RIP
A

BGP

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2
Q

Which routing protocol is limited to smaller network implementations because it does not accommodate growth for larger networks?

OSPF
RIP
EIGRP
IS-IS
A

RIP

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3
Q

What two tasks do dynamic routing protocols perform? (Choose two.)

    discover hosts
    update and maintain routing tables
    propagate host default gateways
    network discovery
    assign IP addressing
A

update and maintain routing tables

network discovery

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4
Q

When would it be more beneficial to use a dynamic routing protocol instead of static routing?

in an organization with a smaller network that is not expected to grow in size
on a stub network that has a single exit point
in an organization where routers suffer from performance issues
on a network where there is a lot of topology changes
A

on a network where there is a lot of topology changes

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5
Q

When would it be more beneficial to use static routing instead of dynamic routing protocols?

on a network where dynamic updates would pose a security risk
on a network that is expected to continually grow in size
on a network that has a large amount of redundant paths
on a network that commonly experiences link failures
A

on a network where dynamic updates would pose a security risk

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6
Q

What is a purpose of the network command when configuring RIPv2 as the routing protocol?

It identifies the interfaces that belong to a specified network.
It specifies the remote network that can now be reached.
It immediately advertises the specified network to neighbor routers with a classful mask.
It populates the routing table with the network entry.
A

It identifies the interfaces that belong to a specified network.

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7
Q

A network administrator configures a static route on the edge router of a network to assign a gateway of last resort. How would a network administrator configure the edge router to automatically share this route within RIP?

Use the auto-summary command.
Use the passive-interface command.
Use the network command.
Use the default-information originate command.
A

Use the default-information originate command.

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8
Q

What is the purpose of the passive-interface command?

allows a routing protocol to forward updates out an interface that is missing its IP address
allows a router to send routing updates on an interface but not receive updates via that interface
allows an interface to remain up without receiving keepalives
allows interfaces to share IP addresses
allows a router to receive routing updates on an interface but not send updates via that interface
A

allows a router to receive routing updates on an interface but not send updates via that interface

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9
Q

Which route would be automatically created when a router interface is activated and configured with an IP address?

D 10.16.0.0/24 [90/3256] via 192.168.6.9
C 192.168.0.0/24 is directly connected, FastEthernet 0/0
S 192.168.1.0/24 is directly connected, FastEthernet 0/1
O 172.16.0.0/16 [110/65] via 192.168.5.1
A

C 192.168.0.0/24 is directly connected, FastEthernet 0/0

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10
Q

What occurs next in the router lookup process after a router identifies a destination IP address and locates a matching level 1 parent route?

The level 2 child routes are examined.
The level 1 supernet routes are examined.
The level 1 ultimate routes are examined.
The router drops the packet.
A

The level 2 child routes are examined.

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11
Q

Which route would be used to forward a packet with a source IP address of 192.168.10.1 and a destination IP address of 10.1.1.1?

C 192.168.10.0/30 is directly connected, GigabitEthernet0/1
S 10.1.0.0/16 is directly connected, GigabitEthernet0/0
O 10.1.1.0/24 [110/65] via 192.168.200.2, 00:01:20, Serial0/1/0
S* 0.0.0.0/0 [1/0] via 172.16.1.1
A

O 10.1.1.0/24 [110/65] via 192.168.200.2, 00:01:20, Serial0/1/0

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12
Q

Which two requirements are used to determine if a route can be considered as an ultimate route in a router’s routing table? (Choose two.)

    contain subnets
    be a default route
    contain an exit interface
    be a classful network entry
    contain a next-hop IP address
A

contain an exit interface

contain a next-hop IP address

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13
Q

What is a disadvantage of using dynamic routing protocols?

They are only suitable for simple topologies.
Their configuration complexity increases as the size of the network grows.
They send messages about network status insecurely across networks by default.
They require administrator intervention when the pathway of traffic changes.
A

They send messages about network status insecurely across networks by default.

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14
Q

Which two statements are true regarding classless routing protocols? (Choose two.)

sends subnet mask information in routing updates
sends complete routing table update to all neighbors
is supported by RIP version 1
allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology
reduces the amount of address space available in an organization
A

sends subnet mask information in routing updates

allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology

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15
Q

While configuring RIPv2 on an enterprise network, an engineer enters the command network 192.168.10.0 into router configuration mode.
What is the result of entering this command?

The interface of the 192.168.10.0 network is sending version 1 and version 2 updates.
The interface of the 192.168.10.0 network is receiving version 1 and version 2 updates.
The interface of the 192.168.10.0 network is sending only version 2 updates.
The interface of the 192.168.10.0 network is sending RIP hello messages.
A

The interface of the 192.168.10.0 network is sending only version 2 updates.

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16
Q

A destination route in the routing table is indicated with a code D. Which kind of route entry is this?

a static route
a route used as the default gateway
a network directly connected to a router interface
a route dynamically learned through the EIGRP routing protocol
A

a route dynamically learned through the EIGRP routing protocol

17
Q

Which type of route will require a router to perform a recursive lookup?

an ultimate route that is using a next hop IP address on a router that is not using CEF
a level 2 child route that is using an exit interface on a router that is not using CEF
a level 1 network route that is using a next hop IP address on a router that is using CEF
a parent route on a router that is using CEF
A

an ultimate route that is using a next hop IP address on a router that is not using CEF

18
Q

Which route is the best match for a packet entering a router with a destination address of 10.16.0.2?

S 10.0.0.0/8 [1/0] via 192.168.0.2
S 10.16.0.0/24 [1/0] via 192.168.0.9
S 10.16.0.0/16 is directly connected, Ethernet 0/1
S 10.0.0.0/16 is directly connected, Ethernet 0/0
A

S 10.16.0.0/24 [1/0] via 192.168.0.9

Routing and switching (12 decks)

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