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Routing and switching > Static Routing Chapter 2 > Flashcards

Static Routing Chapter 2 Flashcards

1
Q

What are two advantages of static routing over dynamic routing? (Choose two.)

Static routing is more secure because it does not advertise over the network.
Static routing scales well with expanding networks.
Static routing requires very little knowledge of the network for correct implementation.
Static routing uses fewer router resources than dynamic routing.
Static routing is relatively easy to configure for large networks.
A

Static routing is more secure because it does not advertise over the network.

Static routing uses fewer router resources than dynamic routing.

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2
Q

What is the correct syntax of a floating static route?

ip route 209.165.200.228 255.255.255.248 serial 0/0/0
ip route 209.165.200.228 255.255.255.248 10.0.0.1 120
ip route 0.0.0.0 0.0.0.0 serial 0/0/0
ip route 172.16.0.0 255.248.0.0 10.0.0.1
A

ip route 209.165.200.228 255.255.255.248 10.0.0.1 120

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3
Q

What is a characteristic of a static route that matches all packets?

It backs up a route already discovered by a dynamic routing protocol.
It uses a single network address to send multiple static routes to one destination address.
It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route.
It is configured with a higher administrative distance than the original dynamic routing protocol has.
A

It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route.

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4
Q

What type of route allows a router to forward packets even though its routing table contains no specific route to the destination network?

dynamic route
default route
destination route
generic route
A

default route

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5
Q

Why would a floating static route be configured with an administrative distance that is higher than the administrative distance of a dynamic routing protocol that is running on the same router?

to be used as a backup route
to load-balance the traffic
to act as a gateway of last resort
to be the priority route in the routing table
A

to be used as a backup route

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6
Q 
A company has several networks with the following IP address requirements:
IP phones – 50
PCs – 70
IP cameras – 10
wireless access points – 10
network printers – 10
network scanners – 2
Which block of addresses would be the minimum to accommodate all of these devices if each type of device was on its own network?
172. 16.0.0/25
172. 16.0.0/24
172. 16.0.0/23
172. 16.0.0/22
A

172.16.0.0/24

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7
Q

What happens to a static route entry in a routing table when the outgoing interface associated with that route goes into the down state?

The static route is removed from the routing table.
The router polls neighbors for a replacement route.
The static route remains in the table because it was defined as static.
The router automatically redirects the static route to use another interface.
A

The static route is removed from the routing table.

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8
Q

The network administrator configures the router with the ip route 172.16.1.0 255.255.255.0 172.16.2.2 command. How will this route appear in the routing table?

C 172.16.1.0 is directly connected, Serial0/0
S 172.16.1.0 is directly connected, Serial0/0
C 172.16.1.0 [1/0] via 172.16.2.2
S 172.16.1.0 [1/0] via 172.16.2.2
A

S 172.16.1.0 [1/0] via 172.16.2.2

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9
Q

Which type of static route that is configured on a router uses only the exit interface?

recursive static route
directly connected static route
fully specified static route
default static route
A

directly connected static route

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10
Q

What two pieces of information are needed in a fully specified static route to eliminate recursive lookups? (Choose two.)

the interface ID exit interface
the interface ID of the next-hop neighbor
the IP address of the next-hop neighbor
the administrative distance for the destination network
the IP address of the exit interface
A

the interface ID exit interface

the IP address of the next-hop neighbor

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11
Q

Consider the following command:
ip route 192.168.10.0 255.255.255.0 10.10.10.2 5
Which route would have to go down in order for this static route to appear in the routing table?

a default route
a static route to the 192.168.10.0/24 network
an OSPF-learned route to the 192.168.10.0/24 network
an EIGRP-learned route to the 192.168.10.0/24 network
A

a static route to the 192.168.10.0/24 network

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12
Q

Refer to the exhibit. The routing table for R2 is as follows:
Gateway of last resort is not set
10.0.0.0/30 is subnetted, 2 subnets
C 10.0.0.0 is directly connected, Serial0/0/0
C 10.0.0.4 is directly connected, Serial0/0/1
192.168.10.0/26 is subnetted, 3 subnets
S 192.168.10.0 is directly connected, Serial0/0/0
C 192.168.10.64 is directly connected, FastEthernet0/0
S 192.168.10.128 [1/0] via 10.0.0.6
What will router R2 do with a packet destined for 192.168.10.129?

drop the packet
send the packet out interface Serial0/0/0
send the packet out interface Serial0/0/1
send the packet out interface FastEthernet0/0
A

send the packet out interface Serial0/0/1

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13
Q

A network administrator has entered a static route to an Ethernet LAN that is connected to an adjacent router. However, the route is not shown in the routing table. Which command would the administrator use to verify that the exit interface is up?

show ip interface brief
show ip protocols
show ip route
tracert
A

show ip interface brief

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14
Q

Consider the following command:
ip route 192.168.10.0 255.255.255.0 10.10.10.2 5
How would an administrator test this configuration?

Delete the default gateway route on the router.
Ping any valid address on the 192.168.10.0/24 network.
Manually shut down the router interface used as a primary route.
Ping from the 192.168.10.0 network to the 10.10.10.2 addres
A

Manually shut down the router interface used as a primary route.

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15
Q

Which three IOS troubleshooting commands can help to isolate problems with a static route? (Choose three.)

    show version
    ping
    tracert
    show ip route
    show ip interface brief
    show arp
A

ping
show ip route
show ip interface brief

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16
Q

An administrator issues the ipv6 route 2001:db8:acad:1::/32 gigabitethernet0/0 2001:db8:acad:6::1 100 command on a router. What administrative distance is assigned to this route?

0
1
32
100
A

100

17
Q

Which statement is true concerning configuring static routes using next-hop
addresses?

A

C. Routers configured with the static route using a next-hop address must either have the exit interface listed in the route or have another route with the network of the next hop and an associated exit interface.

18
Q

Which of the following are three characteristics of a static route? (Choose three.)

A. Reduces the memory and processing burdens on a router.
B. Ensures that there is always a path available.
C. Used to dynamically find the best path to a destination network.
D. Used for routers that connect to stub networks.
E. Used for networks with a single route to a destination network.
F. Reduces configuration time.

A

B. Ensures that there is always a path available.

D. Used for routers that connect to stub networks.

E. Used for networks with a single route to a destination network.

19
Q

Which option shows a correctly configured IPv4 default static route?

A

A. ip route 0.0.0.0 0.0.0.0 S0/0/0

20
Q

A network administrator enters the following command into Routerl: ip route
192.168.0. 0 255.255.255.0 S 0 / 1 / 0 . Routerl then receives a packet that is destined for
192.168.0.22/24. After finding the recently configured static route in the routing table, what
does Router1 do next to process the packet?

A

D. Encapsulates the packet into a frame for the WAN link and forwards the packet out the S 0 / 1 / 0 interface.

21
Q

What type of static route is created when the next-hop IP address and exit interface are
specified?

A

C. Fully specified static route

22
Q

Why would a summarized static route be configured on a router?

A

D. To reduce the size of the routing table

23
Q

Which subnet mask would be used for a network that has a maximum of 300 devices?

A

B. 255.255.254.0

24
Q

Which two conditions must exist in order to summarize IPv6 routes into a single static IPv6 route? (Choose two.)

A. The destination networks are contiguous and can be summarized into a single network address.
B. The multiple static routes all use different exit-interface or next-hop IPv6 address.
C. The destination networks are not contiguous.
D. The multiple static routes all use the same exit-interface or next-hop IPv6 address.
E. The administrative distance is greater than the administrative distance of another static route or dynamic routes.

A

A. The destination networks are contiguous and can be summarized into a single
network address.

D. The multiple static routes all use the same exit-interface or next-hop IPv6 address.

25
Q

What command, or set of commands, would be used to determine if the following
configuration on router HQ works as designed?
ip route 0 . 0 . 0 . 0 0 . 0 . 0 . 0 serial 0 / 0 / 0 10 ip route 0 . 0 . 0 . 0 0 . 0 . 0 . 0 serial 0 / 1 / 0

A 
A. HQ(config)# interface serial 0 / 1 / 0 H Q ( c o n f i g - i f ) # shutdown
H Q ( c o n f i g - i f ) # end
HQ# show ip route
26
Q

Which is a valid summary route for networks 192.168.8.0/22, 192.168.12.0/22, and
192.168.16.0/22?

A

B. 192.168.0.0/19

27
Q

What is the difference between interior and exterior routing protocols?

A

D. Interior routing protocols are used to communicate within a single autonomous system. Exterior
routing protocols are used to communicate between multiple autonomous systems.

28
Q

Which factor directly affects the time to convergence?

A

C. Size of the network

29
Q

Which classless routing protocol supports VLSM and CIDR, supports manual route summarization,
and uses the multicast address 224.0.0.9?

A

B. RIPv2

30
Q

What are two characteristics of link-state protocols compared to distance vector protocols? (Choose two.)

A. They require a lot of hardware resources.
B. They know of the network topology from the perspective of their neighbors.
C. They compute their own knowledge of the network topology.
D. They use hop counts to compute the network topology.
E. They flood the routing table periodically.

A

A. They require a lot of hardware resources.

C. They compute their own knowledge of the network topology.

31
Q

Which classless routing protocol supports VLSM and CIDR, bounded and triggered updates, and uses
the multicast address of 224.0.0.10?

A

EIGRP

32
Q

Which algorithm is used by the OSPF routing process to construct the SPF tree on a router?

A

C. Dijkstra’s algorithm

33
Q

What is an advantage of OSPF compared to RIP?

A

A. Fast convergence

34
Q

A network administrator has examined the routing table of a router and noted that the entry for the destination network 172.16.4.0/24 begins with the letter D. What does this letter signify?

A

B. The route source was learned dynamically.

35
Q

What is the purpose of classifying Cisco IP routing table entries as ultimate route, level 1 route, level 1 parent route, and level 2 child routes?

A

D. To explain the operation of the hierarchical structure of the routing table

36
Q

What are two functions of dynamic routing protocols? (Choose two.)

A. To maintain routing tables
B. To assure low router overheard
C. To avoid exposing network information
D. To discover the network
E. To choose the path that is specified by the administrator
A

A. To maintain routing tables

D. To discover the network

Routing and switching (12 decks)

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