Chapter 03 Exam Flashcards

1
Q

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

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

S 10.0.0.0/8 [1/0] via 192.168.0.2

A

S 10.16.0.0/24 [1/0] via 192.168.0.9

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2
Q

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

RIP

EIGRP

BGP

OSPF

A

BGP

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3
Q

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

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.

It identifies the interfaces that belong to a specified network.

A

It identifies the interfaces that belong to a specified network.

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4
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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5
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 parent route on a router that is using CEF

a level 1 network route that is using a next hop IP address 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

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6
Q

A router is configured to participate in multiple routing protocol: RIP, EIGRP, and OSPF. The router must send a packet to network 192.168.14.0. Which route will be used to forward the traffic?

a 192.168.14.0/24 route that is learned via EIGRP

a 192.168.14.0/25 route that is learned via OSPF

a 192.168.14.0/26 route that is learned via RIP

a 192.168.14.0/25 route that is learned via RIP

A

a 192.168.14.0/26 route that is learned via RIP

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7
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 sending RIP hello messages.

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.

A

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

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8
Q

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

reduces the amount of address space available in an organization

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

sends subnet mask information in routing updates

sends complete routing table update to all neighbors

is supported by RIP version 1

A

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

sends subnet mask information in routing updates

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9
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.)

be a default route

be a classful network entry

contain a next-hop IP address

contain subnets

contain an exit interface

A

contain a next-hop IP address

contain an exit interface

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10
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?

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

S 10.1.0.0/16 is directly connected, GigabitEthernet0/0

S* 0.0.0.0/0 [1/0] via 172.16.1.1

C 192.168.10.0/30 is directly connected, GigabitEthernet0/1

A

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

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11
Q

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

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

on a network where dynamic updates would pose a security risk

A

on a network where dynamic updates would pose a security risk

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12
Q

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

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

O 172.16.0.0/16 [110/65] via 192.168.5.1

S 192.168.1.0/24 is directly connected, FastEthernet 0/1

D 10.16.0.0/24 [90/3256] via 192.168.6.9

A

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

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13
Q

What is the purpose of the passive-interface command?

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

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

allows a routing protocol to forward updates out an interface that is missing its IP address

allows an interface to remain up without receiving keepalives

allows interfaces to share IP addresses

A

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

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14
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

in an organization where routers suffer from performance issues

on a network where there is a lot of topology changes

on a stub network that has a single exit point

A

on a network where there is a lot of topology changes

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15
Q

What is a disadvantage of using dynamic routing protocols?

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

They are only suitable for simple topologies.

They require administrator intervention when the pathway of traffic changes.

Their configuration complexity increases as the size of the network grows.

A

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

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16
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 1 supernet routes are examined.

The level 2 child routes are examined.

The level 1 ultimate routes are examined.

The router drops the packet.

A

The level 2 child routes are examined.

17
Q

What is different between IPv6 routing table entries compared to IPv4 routing table entries?

IPv6 routing tables include local route entries which IPv4 routing tables do not.

IPv6 does not use static routes to populate the routing table as used in IPv4.

The selection of IPv6 routes is based on the shortest matching prefix, unlike IPv4 route selection which is based on the longest matching prefix.

By design IPv6 is classless so all routes are effectively level 1 ultimate routes.

A

By design IPv6 is classless so all routes are effectively level 1 ultimate routes.

18
Q

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

update and maintain routing tables

assign IP addressing

discover hosts

network discovery

propagate host default gateways

A

update and maintain routing tables

network discovery

19
Q

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

IS-IS

OSPF

EIGRP

RIP

A

RIP

20
Q

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

a network directly connected to a router interface

a route used as the default gateway

a static route

a route dynamically learned through the EIGRP routing protocol

A

a route dynamically learned through the EIGRP routing protocol