Test
CCNA3
Crea una cuenta gratis para terminar este test
Guarda tu progreso y consulta tu resultado final.
¿Ya tienes cuenta? Inicia sesión
Preguntas del test (43)
1Refer to the exhibit.A network administrator is reviewing the configuration of switch S1. Which protocol has been implemented to group multiple physical ports into one logical link?
- APAgP
- BDTP
- CLACP
- DSTP
2What is the term used to describe a network topology where the subnets from a major classful network address space are separated from each other by addresses from a different major classful network address?
- Amultihomed networkconverged network
- Bdiscontiguous network
- Cdata network
3What type of packets are sent when there is a change in the EIGRP topology?
- Ahello
- Btriggered bounded update
- Cacknowledge
- Dreply
4Which three pieces of information does a link-state routing protocol use initially as link-state information for locally connected links? (Choose three.)
- Athe link router interface IP address and subnet mask
- Bthe type of network link
- Cthe link next-hop IP address
- Dthe link bandwidth
- Ethe cost of that link
5What indicates to a link-state router that a neighbor is unreachable?
- Aif the router no longer receives routing updates
- Bif the router no longer receives hello packets
- Cif the router receives an update with a hop count of 16
- Dif the router receives an LSP with previously learned information
6What are three features of EIGRP? (Choose three.)
- Auses the Shortest Path First algorithm
- Bestablishes neighbor adjacencies
- Cuses the Reliable Transport Protocol
- Dsends full routing table updates periodically
- Ebroadcasts updates to all EIGRP routers
- Fsupports equal and unequal cost load balancing
7What capability do protocol-dependent modules provide to the EIGRP routing protocol?
- Aroute different Layer 3 protocols
- Bexchange summary routes between areas
- Ccombine routes learned from different protocols into a single routing table
- Dload balance between routing protocols
8Which command should be used to configure EIGRP to only advertise the network that is attached to the gigabit Ethernet 0/1 interface?
- Anetwork 172.16.23.64 0.0.0.63
- Bnetwork 172.16.23.0 255.255.255.192
- Cnetwork 172.16.23.64 0.0.0.127
- Dnetwork 172.16.23.0 255.255.255.128
9Which command will configure an IPv6 default static route?
- Arouter(config)# ipv6 ::/64 s0/0/0
- Brouter(config-rtr)# redistribute static
- Crouter(config)# ipv6 route ::/0 s0/0/0
- Drouter(config)# ipv6 unicast-routing
10What routing protocol can be configured to load balance across paths with unequal metrics through the use of the variance command?
- AEIGRP
- BOSPF
- COSPFv3
- DRIPng
11What are two features of a link-state routing protocol? (Choose two.)
- ARouters send periodic updates only to neighboring routers.
- BRouters send triggered updates in response to a change.
- CRouters create a topology of the network by using information from other routers.
- DThe database information for each router is obtained from the same source.
- EPaths are chosen based on the lowest number of hops to the designated router.
12A router is participating in an OSPFv2 domain. What will always happen if the dead interval expires before the router receives a hello packet from an adjacent DROTHER OSPF router?
- AOSPF will run a new DR/BDR election.
- BA new dead interval timer of 4 times the hello interval will start.
- CSPF will run and determine which neighbor router is “down”
- DOSPF will remove that neighbor from the router link-state database.
13In an OSPFv2 configuration, what is the effect of entering the command network 192.168.1.1 0.0.0.0 area 0?
- AIt changes the router ID of the router to 192.168.1.1
- BIt enables OSPF on all interfaces on the router.
- CIt tells the router which interface to turn on for the OSPF routing process.
- DIt allows all 192.168.1.0 networks to be advertised.
14What does the cost of an OSPF link indicate?
- AA higher cost for an OSPF link indicates a faster path to the destination.
- BLink cost indicates a proportion of the accumulated value of the route to the destination
- CCost equals bandwidth.
- DA lower cost indicates a better path to the destination than a higher cost does.
15Which two addresses represent valid destination addresses for an OSPFv3 message? (Choose two.)
- AFF02::5
- B224.0.0.5
- CFF02::A
- DFE80::42
- E2001:db8:acad:1::1
16What information is contained in OSPF type 3 LSAs?
- Anetworks reachable in other areas
- Bnetworks learned from other routing protocols
- Cthe router ID of the DR to all routers in the area
- Dthe router ID of an ASBR and the route to reach it
17Refer to the exhibit.For the given topology, what are three results of the OSPF DR and BDR elections ?(Choose three.)
- AR1 is BDR for segment A.
- BR2 is DR for segment A.
- CR3 is DR for segment A.
- DR4 is DR for segment B
- ER5 is BDR for segment B
- FR3 is DR for segment B.
18Refer to the exhibit.In this scenario, Area 40 cannot be connected directly to Area 0. Which OSPF network type must be configured in Area 1 to connect these areas?
- Apoint-to-point
- Bvirtual link
- Cpoint-to-multipoint
- Dnonbroadcast multiaccess
19Refer to the exhibit.
What method can be used to enable an OSPF router to advertise a default route to neighboring OSPF routers?
- AUse a static route pointing to the ISP and redistribute it.
- BUse the redistribute static command on R0-A.
- CUse the default-information originate command on ISP.
- DUse the default-information originate command on R0-A.
20Refer to the exhibit.A network administrator has configured the OSPF timers to the values that are shown in the graphic. What is the result of having those manually configured timers?
- AThe R1 dead timer expires between hello packets from R2
- BR1 automatically adjusts its own timers to match the R2 timers
- CThe hello timer on R2 expires every ten seconds
- DThe neighbor adjacency has formed
21Refer to the exhibit.A network administrator has configured OSPFv2 on the two Cisco routers as shown. The routers are unable to form a neighbor adjacency. What should be done to fix the problem?
- AImplement the command no passive-interface Serial0/1.
- BImplement the command network 192.168.2.4 0.0.0.3 area 0 on router R2.
- CImplement the command network 192.168.3.0 0.0.0.255 area 0 on router R2.
- DChange the router-id of router R2 to 2.2.2.2
22A network administrator has configured an EtherChannel between two switches that are connected via four trunk links. If the physical interface for one of the trunk links changes to a down state, what happens to the EtherChannel?
- ASpanning Tree Protocol will transition the failed physical interface into forwarding mode.
- BSpanning Tree Protocol will recalculate the remaining trunk links.
- CThe EtherChannel will transition to a down state.
- DThe EtherChannel will remain functional.
23Which mode configuration setting would allow formation of an EtherChannel link between switches SW1 and SW2 without sending negotiation traffic?
- ASW1: on
SW2: on - BSW1: desirable
SW2: desirable - CSW1: auto
SW2: auto
PortFast enabled on both switches - DSW1: auto
SW2: auto
trunking enabled on both switches - ESW1: passive
SW2: active
- ASW1: on
24Which two statements are correct about EIGRP acknowledgment packets? (Choose two.)
- AThe packets are used to discover neighbors that are connected on an interface.
- BThe packets are sent as unicast.
- CThe packets require confirmation.
- DThe packets are unreliable.
- EThe packets are sent in response to hello packets.
25A set of switches is being connected in a LAN topology. Which STP bridge priority value will make it least likely for the switch to be selected as the root?
- A61440
- B4096
- C65535
- D32768
26The graphic shows the following information: Switch S1 (the root bridge) uses a port that is labeled B to connect to switch S3 on a port labeled D. S3 is connected to switch S2 on a port labeled A. S2 uses a port labeled C to connect to S1. S2 is connected also to three PC workstations labeled A, B, and C.Refer to the exhibit. What are the possible port roles for ports A, B, C, and D in this RSTP-enabled network?
- Aalternate, root, designated, root
- Bdesignated, alternate, root, root
- Calternate, designated, root, root
- Ddesignated, root, alternate, root
27Refer to the exhibit. What are two results of issuing the displayed commands on S1, S2, and S3? (Choose two.)
- AS2 can become root bridge if S1 fails
- BS2 can become root bridge if S3 fails.
- CS1 will automatically adjust the priority to be the lowest
- DS3 can be elected as a secondary bridge.
- ES1 will automatically adjust the priority to be the highest.
28Which statement describes a characteristic of OSPF external routes?
- AThe cost of a type 1 route is always the external cost, regardless of the interior cost to reach that route.
- BThe difference between type 1 and type 2 is in the way the cost of the route is being calculated
- CA type 2 route is always preferred over a type 1 route for the same destination.
- DType 1 and type 2 external routes in IPv4 networks are represented in the routing table by EX1 and EX2, respectively.
29By default, how many equal cost routes to the same destination can be installed in the routing table of a Cisco router?
- A2
- B4
- C16
- D32
30An EIGRP router loses the route to a network. Its topology table contains two feasible successors to the same network. What action will the router take?
- AThe best alternative backup route is immediately inserted into the routing table.
- BThe router will query neighbors for an alternate route.
- CThe DUAL algorithm is recomputed to find an alternate route.
- DThe router uses the default route.
31A network administrator is analyzing first-hop router redundancy protocols. What is a characteristic of VRRPv3?
- AIt allows load balancing between routers.
- BIt supports IPv6 and IPv4 addressing
- CIt works together with HSRP.
- DVRRPv3 is Cisco proprietary.
32What is the function of STP in a scalable network?
- AIt combines multiple switch trunk links to act as one logical link for increased bandwidth
- BIt protects the edge of the enterprise network from malicious activity.
- CIt disables redundant paths to eliminate Layer 2 loops.
- DIt decreases the size of the failure domain to contain the impact of failures.
33When should EIGRP automatic summarization be turned off?
- Awhen a router has less than five active interfaceswhen a router has more than three active interfaces
- Bwhen a network contains discontiguous network addresses
- Cwhen a router has not discovered a neighbor within three minutes
- Dwhen a network addressing scheme uses VLSM
34Which characteristic would most influence a network design engineer to select a multilayer switch over a Layer 2 switch?
- Aability to aggregate multiple ports for maximum data throughputability to have multiple forwarding
- Bpaths through the switched network based on VLAN number(s)
- Cability to provide power to directly-attached devices and the switch itself
- Dability to build a routing table
35What are two features of OSPF interarea route summarization? (Choose two.)
- ARoute summarization results in high network traffic and router overhead.
- BRoutes within an area are summarized by the ABR.
- CType 3 and type 5 LSAs are used to propagate summarized routes by default.
- DASBRs perform all OSPF summarization.
- EABRs advertise the summarized routes into the backbone.
36Refer to the exhibit. Which two conclusions can be derived from the output? (Choose two.)
- AThere is one feasible successor to network 192.168.1.8/30.
- BThe network 192.168.10.8/30 can be reached through 192.168.11.1.
- CThe reported distance to network 192.168.1.0/24 is 41024256.
- DThe neighbor 172.16.6.1 meets the feasibility condition to reach the 192.168.1.0/24 network.
- ERouter R1 has two successors to the 172.16.3.0/24 network.
37What are the only two roles that permit an OSPF router to be configured for summarization? (Choose two.)
- Adesignated routerbackbone router
- Binternal router
- Cautonomous system boundary router
- Darea border router
38A network engineer examining the operation of EIGRP on a router notices that one particular route is in an active state. What can the engineer determine about this route?
- AData packets to be sent to the specified network will be forwarded on this route.
- BThe Diffusing Update Algorithm has determined a successor and a feasible successor for this route.
- CThe EIGRP processes are still calculating the administrative distance for this route.
- DEIGRP query messages are being sent to other routers requesting paths to this network.
39A router needs to be configured to route within OSPF Area 0. Which two commands are required to accomplish this? (Choose two.)
- ARouterA(config)# router ospf 0
- BRouterA(config-router)# network 192.168.2.0 255.255.255.0 0
- CRouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
- DRouterA(config-router)# network 192.168.2.0 0.0.0.255 0
- ERouterA(config)# router ospf 1
40Refer to the exhibit. What are three resulting DR and BDR elections for the given topology? (Choose three.)
- AR4 is BDR for segment B.
- BR1 is DR for segment A.
- CR5 is DR for segment B.
- DR3 is DR for segment B.
- ER3 is DBR for segment B.
- FR2 is BDR for segment A.
41Which statement is true about the states of the IEEE 802.1D Spanning Tree Protocol?
- APorts must be blocked before they can be placed in the disabled state.
- BPorts listen and learn before going into the forwarding state.
- CPorts are manually configured to be in the forwarding state.
- DIt takes 15 seconds for a port to go from blocking to forwarding.
42What is one reason to use the ip ospf priority command when the OSPF routing protocol is in use?
- Ato influence the DR/BDR election process
- Bto streamline and speed up the convergence process
- Cto provide a backdoor for connectivity during the convergence process
- Dto activate the OSPF neighboring process
43A network administrator is configuring EIGRP load balancing with the commands:Router(config)# router eigrp 1
Router(config-router)# variance 3
Router(config-router)# endWhat is a direct result of entering these commands?- AAny feasible successor routes to the same destination network with a metric, equal to or less than 3 times that of the successor, will be installed in the routing table
- BUp to three equal cost routes to the same destination can be installed in the routing table.
- CNo matter whether the metric is equal or unequal, up to three routes to the same destination can be installed in the routing table.
- DUp to three unequal cost routes to the same destination can be installed in the routing table.
Información
- Descripción
- Test sobre CCNA3, creado por Райхан Абдыжалилова el 17/05/2018.
- Autor
- Райхан Абдыжалилова
- Idioma
- English
- Visitas
- 6
- Valoración
- Aún sin valoraciones Valora este test