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 is relatively easy to configure for large networks.
Static routing requires very little knowledge of the network for correct implementation.
Static routing uses fewer router resources than dynamic routing.
Static routing scales well with expanding networks.
Refer to the exhibit. Which is the best way for PC A and PC B to successfully communicate with sites on the Internet?
Configure a default route from R1 to ISP and a static route from ISP to R1.
Configure a static route from R1 to ISP and a dynamic route from ISP to R1.
Configure a routing protocol between R1 and ISP and advertise all the routes.
Configure a dynamic route from R1 to ISP and a static route from ISP to R1.
Refer to the exhibit. The small company shown uses static routing. Users on the R2 LAN have reported a problem with connectivity. What is the issue?
R1 and R2 must use a dynamic routing protocol.
R1 needs a default route to R2.
R2 needs a static route to the Internet.
R2 needs a static route to the R1 LANs
R1 needs a static route to the R2 LAN.
Refer to the exhibit. The network engineer for the company that is shown wants to use the primary ISP connection for all external connectivity. The backup ISP connection is used only if the primary ISP connection fails. Which set of commands would accomplish this goal?
ip route 198.133.219.24 255.255.255.252 ip route 64.100.210.80 255.255.255.252
ip route 198.133.219.24 255.255.255.252 ip route 64.100.210.80 255.255.255.252 10
ip route 0.0.0.0 0.0.0.0 s0/0/0 ip route 0.0.0.0 0.0.0.0 s0/1/0
ip route 0.0.0.0 0.0.0.0 s0/0/0 ip route 0.0.0.0 0.0.0.0 s0/1/0 10 ******
What type of route allows a router to forward packets even though its routing table contains no specific route to the destination network?
generic route
destination route
dynamic route
default route
Refer to the graphic. Which command would be used on router A to configure a static route to direct traffic from LAN A that is destined for LAN C?
A(config)# ip route 192.168.3.2 255.255.255.0 192.168.4.0
A(config)# ip route 192.168.5.0 255.255.255.0 192.168.3.2
A(config)# ip route 192.168.3.0 255.255.255.0 192.168.3.1
A(config)# ip route 192.168.4.0 255.255.255.0 192.168.3.2
A(config)# ip route 192.168.4.0 255.255.255.0 192.168.5.2
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?
S 172.16.1.0 is directly connected, Serial0/0
S 172.16.1.0 [1/0] via 172.16.2.2
C 172.16.1.0 [1/0] via 172.16.2.2
C 172.16.1.0 is directly connected, Serial0/0
Refer to the exhibit. The network administrator needs to configure a default route on the Border router. Which command would the administrator use to configure a default route that will require the least amount of router processing when forwarding packets?
Border(config)# ip route 0.0.0.0 0.0.0.0 s0/0/1*
Border(config)# ip route 0.0.0.0 0.0.0.0 198.133.219.5
Border(config)# ip route 0.0.0.0 0.0.0.0 s0/0/0
Border(config)# ip route 0.0.0.0 0.0.0.0 198.133.219.6
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 the priority route in the routing table
to be used as a backup route
to act as a gateway of last resort
to load-balance the traffic
Refer to the exhibit. What command would be used to configure a static route on R1 so that traffic from both LANs can reach the 2001:db8:1:4::/64 remote network?
ipv6 route 2001:db8:1::/65 2001:db8:1:3::1
ipv6 route 2001:db8:1:4::/64 2001:db8:1:3::2
ipv6 route 2001:db8:1:4::/64 2001:db8:1:3::1
ipv6 route ::/0 serial0/0/0
Refer to the exhibit. Which default static route command would allow R1 to potentially reach all unknown networks on the Internet?
R1(config)# ipv6 route 2001:db8:32::/64 G0/1 fe80::2
R1(config)# ipv6 route ::/0 G0/0 fe80::2
R1(config)# ipv6 route ::/0 G0/1 fe80::2
R1(config)# ipv6 route 2001:db8:32::/64 G0/0
Which two statements describe classful IP addresses? (Choose two.)
All subnets in a network are the same size.
Only Class A addresses can be represented by high-order bits 100.
Three of the five classes of addresses are reserved for multicasts and experimental use.
The number of bits used to identify the hosts is fixed by the class of the network.
Up to 24 bits can make up the host portion of a Class C address.
It is possible to determine which class an address belongs to by reading the first bit.
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?
172.16.0.0/23
172.16.0.0/24
172.16.0.0/22
172.16.0.0/25
What does VLSM allow a network administrator to do?
utilize one public IP address to translate multiple private addresses
utilize multiple different subnet masks in the same IP address space
utilize one dynamic routing protocol throughout the entire network
utilize multiple routing protocols within an autonomous system
utilize one subnet mask throughout a hierarchical network
What would be the best summary route for the following networks? 10.50.168.0/23 10.50.170.0/23 10.50.172.0/23 10.50.174.0/24
10.50.160.0/22
10.50.164.0/23
10.50.168.0/16
10.50.168.0/21
10.50.168.0/22
10.50.168.0/23
What is a valid summary route for IPv6 networks 2001:0DB8:ACAD:4::/64, 2001:0DB8:ACAD:5::/64, 2001:0DB8:ACAD:6::/64, and 2001:0DB8:ACAD:7::/64?
2001:0DB8:ACAD:0000::/63
2001:0DB8:ACAD:0000::/64
2001:0DB8:ACAD:0004::/62
2001:0DB8:ACAD:0004::/63
Which type of static route that is configured on a router uses only the exit interface?
directly connected static route
fully specified static route
default static route
recursive static route
Which three IOS troubleshooting commands can help to isolate problems with a static route? (Choose three.)
show ip route
show ip interface brief
ping
tracert
show arp
show version
Refer to the exhibit. What two commands will change the next-hop address for the 10.0.0.0/8 network from 172.16.40.2 to 192.168.1.2? (Choose two.)
A(config)# ip route 10.0.0.0 255.0.0.0 192.168.1.2
A(config)# ip route 10.0.0.0 255.0.0.0 s0/0/0
A(config)# no ip address 10.0.0.1 255.0.0.0 172.16.40.2
A(config)# no network 10.0.0.0 255.0.0.0 172.16.40.2
A(config)# no ip route 10.0.0.0 255.0.0.0 172.16.40.2
What happens to a static route entry in a routing table when the outgoing interface is not available?
The router polls neighbors for a replacement route.
The router redirects the static route to compensate for the loss of the next hop device.
The route is removed from the table.
The route remains in the table because it was defined as static.
What is the purpose of the passive-interface command?
allows interfaces to share IP addresses
allows an interface to remain up without receiving keepalives
allows a router to send routing updates on an interface but not receive updates via that interface
allows a routing protocol to forward updates out an interface that is missing its IP address
allows a router to receive routing updates on an interface but not send updates via that interface
What two tasks do dynamic routing protocols perform? (Choose two.)
assign IP addressing
network discovery
propagate host default gateways
update and maintain routing tables
discover hosts
The command “” is used in RIP router configuration mode to enable the sending of subnet masks with the routing updates.
Refer to the exhibit. OSPF is used in the network. Which path will be chosen by OSPF to send data packets from Net A to Net B?
R1, R3, R5, R7
R1, R4, R6, R7
R1, R2, R5, R7
R1, R3, R6, R7
R1, R3, R5, R6, R7
Which two statements are true regarding classless routing protocols? (Choose two.)
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
is supported by RIP version 1
reduces the amount of address space available in an organization
sends complete routing table update to all neighbors
What two actions result from entering the network 192.168.1.0 command in RIP configuration mode on a router? (Choose two.)
The neighboring routers are sent a request for routing updates.
The routing table is created in the RAM of the router.
Routing updates are sent through all the interfaces belonging to 192.168.1.0.
The RIP process is stopped and all existing RIP configurations are erased.
The network address 192.168.1.0 is advertised to the neighbor routers
Refer to the exhibit. Based on the partial output from the show ip route command, what two facts can be determined about the RIP routing protocol? (Choose two.)
The command no auto-summary has been used on the RIP neighbor router.*
RIP version 1 is running on this router and its RIP neighbor.
RIP will advertise two networks to its neighbor.
The metric to the network 172.16.0.0 is 120.
RIP version 2 is running on this router and its RIP neighbor.
In the context of routing protocols, what is a definition for time to convergence?
the capability to transport data, video, and voice over the same media
the amount of time for the routing tables to achieve a consistent state after a topology change
a measure of protocol configuration complexity
the amount of time a network administrator needs to configure a routing protocol in a small- to medium-sized network
Fill in the blank. Do not abbreviate. When configuring RIPng, the ” ” command instructs the router to propagate a static default route.
A destination route in the routing table is indicated with a code D. Which kind of route entry is this?
a route dynamically learned through the EIGRP routing protocol
a route used as the default gateway
a network directly connected to a router interface
a static route
Refer to the exhibit. Which interface will be the exit interface to forward a data packet with the destination IP address 172.16.0.66?
Serial0/0/0
Serial0/0/1
GigabitEthernet0/0
GigabitEthernet0/1
Which route is the best match for a packet entering a router with a destination address of 10.16.0.2?
S 10.16.0.0/16 is directly connected, Ethernet 0/1
S 10.16.0.0/24 [1/0] via 192.168.0.9
S 10.0.0.0/8 [1/0] via 192.168.0.2
S 10.0.0.0/16 is directly connected, Ethernet 0/0
Which two requirements are necessary before a router configured with a link-state routing protocol can build and send its link-state packets? (Choose two.)
The router has determined the costs associated with its active links.
The router has constructed an SPF tree.
The router has established its adjacencies.
The routing table has been refreshed.
The router has built its link-state database.
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 a next-hop IP address
contain subnets
be a classful network entry
be a default route
contain an exit interface
What is different between IPv6 routing table entries compared to IPv4 routing table entries?
By design IPv6 is classless so all routes are effectively level 1 ultimate routes.
IPv6 does not use static routes to populate the routing table as used in IPv4.
IPv6 routing tables include local route entries which IPv4 routing tables do not.
The selection of IPv6 routes is based on the shortest matching prefix, unlike IPv4 route selection which is based on the longest matching prefix.
Which dynamic routing protocol was developed as an exterior gateway protocol to interconnect different Internet providers?
RIP
OSPF
EIGRP
BGP
Which route will a router use to forward an IPv4 packet after examining its routing table for the best match with the destination address?
a level 1 child route
a level 1 parent route
a level 2 supernet route
a level 1 ultimate route
Which two statements describe the OSPF routing protocol? (Choose two.)
used primarily as an EGP
has an administrative distance of 100
calculates its metric using bandwidth
automatically summarizes networks at the classful boundaries
uses Dijkstra’s algorithm to build the SPF tree
Which two events will trigger the sending of a link-state packet by a link-state routing protocol? (Choose two.)
the requirement to periodically flood link-state packets to all neighbors
a change in the topology
the initial startup of the routing protocol process
the router update timer expiring
a link to a neighbor router has become congested
Which OSPF component is identical in all routers in an OSPF area after convergence?
routing table
link-state database
SPF tree
adjacency database
Which three statements describe features of the OSPF topology table? (Choose three.)
When converged, all routers in an area have identical topology tables.
Its contents are the result of running the SPF algorithm.
After convergence, the table only contains the lowest cost route entries for all known networks.
It is a link-state database that represents the network topology.
The topology table contains feasible successor routes.
The table can be viewed via the show ip ospf database command.
A router is participating in an OPSFv2 domain. What will always happen if the dead interval expires before the router receives a hello packet from an adjacent DROTHER OPSF router?
SPF will run and determine which neighbor router is “down”.
OSPF will run a new DR/BDR election
OSPF will remove that neighbor from the router link-state database.
A new dead interval timer of 4 times the hello interval will start.
Which command will provide information specific to OSPFv3 routes in the routing table?
show ip route ospf
show ipv6 route ospf
show ipv6 route
Which wildcard mask would be used to advertise the 192.168.5.96/27 network as part of an OSPF configuration?
0.0.0.32
0.0.0.31
255.255.255.223
255.255.255.224
A network administrator enters the command ipv6 router ospf 64 in global configuration mode. What is the result of this command?
The OSPFv3 process will be assigned an ID of 64.
The router will be assigned a router ID of 64.
The router will be assigned an autonomous system number of 64.
The reference bandwidth will be set to 64 Mb/s.
The election of a DR and a BDR takes place on ” ” networks, such as Ethernet networks.
OSPF uses ” ” as a metric.
Which command should be used to check the OSPF process ID, the router ID, networks the router is advertising, the neighbors the router is receiving updates from, and the default administrative distance?
show ip protocols
show ip ospf interface
show ip ospf
show ip ospf neighbor
Which OSPFv3 function works differently from OSPFv2?
authentication
metric calculation
hello mechanism
election process
OSPF packet types
Fill in the blank. Do not use abbreviations. To quickly verify OSPFv3 configuration information including the OSPF process ID, the router ID, and the interfaces enabled for OSPFv3, you need to issue the command ” ”
Which three statements describe the similarities between OSPFv2 and OSPFv3? (Choose three.)
They both have unicast routing enabled by default.
They both use the exit interface address as the source address when sending OSPF messages.
They both use the same DR/BDR election process.
They both support IPsec for authentication.
They both share the concept of multiple areas.
They both are link-state protocols.
What is a function of OSPF hello packets?
to send specifically requested link-state records
to discover neighbors and build adjacencies between them
to request specific link-state records from neighbor routers
to ensure database synchronization between routers
What are the two purposes of an OSPF router ID? (Choose two.)
to uniquely identify the router within the OSPF domain
to enable the SPF algorithm to determine the lowest cost path to remote networks
to facilitate the transition of the OSPF neighbor state to Full
to facilitate router participation in the election of the designated router
to facilitate the establishment of network convergence
Which command will verify that a router that is running OSPFv3 has formed an adjacency with other routers in its OSPF area?
show ipv6 ospf neighbor
show ipv6 interface brief
show running-configuration
Single area OSPFv3 has been enabled on a router via the ipv6 router ospf 20 command. Which command will enable this OSPFv3 process on an interface of that router?
ipv6 ospf 20 area 0
ipv6 ospf 20 area 20
ipv6 ospf 0 area 20
ipv6 ospf 0 area 0
When a network engineer is configuring OSPFv3 on a router, which command would the engineer issue immediately before configuring the router ID?
ipv6 router ospf 10
ipv6 ospf 10 area 0
interface serial 0/0/1
clear ipv6 ospf process
Which criterion is preferred by the router to choose a router ID?
the IP address of the highest configured loopback interface on the router
the router-id rid command
the IP address of the highest active OSPF-enabled interface
the IP address of the highest active interface on the router
Which OPSF packet contains the different types of link-state advertisements?
LSR
LSU
DBD
LSAck
hello
What does a Cisco router use automatically to create link-local addresses on serial interfaces when OSPFv3 is implemented?
an Ethernet interface MAC address available on the router, the FE80::/10 prefix, and the EUI-64 process
the MAC address of the serial interface, the FE80::/10 prefix, and the EUI-64 process
the FE80::/10 prefix and the EUI-48 process
the highest MAC address available on the router, the FE80::/10 prefix, and the EUI-48 process
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