DCOM 219 FINAL EXAM NEWEST 2024-2025 ACTUAL EXAM NEWEST COMPLETE 250 QUESTIONS & ANSWERS, Exams of Computer Networks

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DCOM 219 FINAL EXAM NEWEST 2024-

ACTUAL EXAM NEWEST COMPLETE 250

QUESTIONS & CORRECT DETAILED ANSWERS

(VERIFIED ANSWERS). GRADED A

A network administrator enters the command ipv6 router ospf 64 in global configuration mode. What is the result of this command? - ANSThe OSPFv process will be assigned an ID of 64. A network administrator has just changed the router ID on a router that is working in an OSPFv2 environment. What should the administrator do to reset the adjacencies and use the new router ID? - ANSIssue the clear ip ospf process privileged mode command. A network administrator is configuring an EtherChannel link between switches SW1 and SW2 by using the command SW1(config-if-range)# channel-group 1 mode passive. Which command must be used on SW2 to enable this EtherChannel? - ANSSW2(config-if-range)# channel-group 1 mode active A network administrator is planning redundant devices and cabling in a switched network to support high availability. Which benefit will implementing the

Spanning Tree Protocol provide to this design? - ANSRedundant paths can be available without causing logical Layer 2 loops. A network administrator is preparing the implementation of Rapid PVST+ on a production network. How are the Rapid PVST+ link types determined on the switch interfaces? - ANSLink types are determined automatically. A network administrator is researching routing protocols for implementation in a critical network infrastructure. Which protocol uses the DUAL algorithm to provide almost instantaneous convergence during a route failover? - ANSEIGRP A network administrator is troubleshooting an OSPFv3 configuration on an IPv network. The administrator issues the show ipv6 protocols command. What is the purpose for this command? - ANSto verify OSPFv3 configuration information A network administrator is verifying a multi-area OSPF configuration by checking the routing table on a router in area 1. The administrator notices a route to a network that is connected to a router in area 2. Which code appears in front of this route in the routing table within area 1? - ANSO IA

A network administrator wants to verify the default delay values for the interfaces on an EIGRP-enabled router. Which command will display these values? - ANSshow interfaces A network administrator would like to ensure that router R1 is always elected the active router for an HSRP group. Which set of commands would ensure the required results? - ANSR1(config-if)# ip address 192.168.1.100 255.255.255. R1(config-if)# standby 1 ip 192.168.1. R1(config-if)# standby 1 priority 255 R1(config-if)# standby 1 preempt R1(config-if)# no shutdown A network engineer has manually configured the hello interval to 15 seconds on an interface of a router that is running OSPFv2. By default, how will the dead interval on the interface be affected? - ANSThe dead interval will now be 60 seconds. A network engineer is reviewing a network design that uses a fixed configuration enterprise router that supports both LAN and WAN connections. However, the engineer realizes that the router does not have enough interfaces to support

growth and network expansion. Which type of device should be used as a replacement? - ANSa modular router A network engineer suspects that OSPFv3 routers are not forming neighbor adjacencies because there are interface timer mismatches. Which two commands can be issued on the interface of each OSFPv3 router to resolve all timer mismatches? (Choose two.) - ANSno ipv6 ospf dead-interval no ipv6 ospf hello-interval A network technician needs to connect a PC to a Cisco network device for initial configuration. What is required to perform this device configuration? - ANSterminal emulation client A new network administrator has been asked to verify the metrics that are used by EIGRP on a Cisco device. Which two EIGRP metrics are measured by using static values on a Cisco device? (Choose two.) - ANSbandwidth delay A switch is participating in a VTP domain and configured as a VTP server. The switch needs to propagate VLAN 10 (used by the Manufacturing department) throughout the VTP domain, but does not have any directly connected hosts using

that particular VLAN. Which configuration would satisfy this requirement? - ANSvlan 10 name Manufacturing exit After a network topology change occurs, which distance vector routing protocol can send an update message directly to a single neighboring router without unnecessarily notifying other routers? - ANSEIGRP An administrator is troubleshooting OSPFv3 adjacency issues. Which command would the administrator use to confirm that OSPFv3 hello and dead intervals are matching between routers? - ANSshow ipv6 ospf interface An administrator issues the router eigrp 100 command on a router. What is the number 100 used for? - ANSas the autonomous system number An EtherChannel link using LACP was formed between two switches, S1 and S2. While verifying the configuration, which mode combination could be utilized on both switches? - ANSS1-passive and S2-active

An OSPF enabled router is processing learned routes to select best paths to reach a destination network. What is the OSPF algorithm evaluating as the metric? - ANSThe cumulative bandwidth that is used along the routing path. As the network administrator you have been asked to implement EtherChannel on the corporate network. What does this configuration consist of? - ANSgrouping multiple physical ports to increase bandwidth between two switches Assuming that EIGRP is enabled on both routers and automatic summarization is enabled, what must be configured to ensure that R1 will be able to reach the 2.2.2.0/24 network? - ANSUse the command no auto-summary to disable automatic summarization. By default, how many equal-cost routes to the same destination network will EIGRP install in the routing table? - ANS By default, what is the OSPF cost for any link with a bandwidth of 100 Mb/s or greater? - ANS Fill in the blank.

In a Cisco switch, the extended range VLAN information is stored in the_____________file. - ANSrunning configuration Fill in the blank. OSPF uses _______ as a metric. - ANSCost Fill in the blank. Do not use abbreviations. The _____________ command causes an EIGRP router to stop sending hello packets through an interface. - ANSpassive-interface Fill in the blank. Do not use abbreviations. The command to propagate the default route from the router Border to the rest of the EIGRP domain is Border(config-router)# ______ - ANSredistribute static Fill in the blank. Do not use abbreviations. The spanning-tree _______ global configuration command is used to enable Rapid PVST+. - ANSmode rapid-pvst Fill in the blank. Do not use acronyms.

OSPF type 2 LSA messages are only generated by the _______ router to advertise routes in multiaccess networks. - ANSdesignated Fill in the blank. Use a number. A type __ LSA identifies the ASBR and provides a route to it. - ANS Fill in the blank. Use a number. An ASBR generates type __ LSAs for each of its external routes and floods them into the area that it is connected to. - ANS Fill in the Blank. Use the abbreviation. EIGRP uses the protocol ______ to deliver EIGRP packets to neighbors. - ANSRTP Fill in the blank.In an EIGRP topology table, a route that is in a/an ________ state will cause the Diffusing Update Algorithm to send EIGRP queries that ask other routers for a path to this network. - ANSActive Fill in the blank.In FHRP operation, two or more routers are represented as a single ________ router. - ANSvirtual

Fill in the blank.The election of a DR and a BDR takes place on _________ networks, such as Ethernet networks. - ANSmultiaccess Given the following configuration, which two statements are true? (Choose two.) switch(vlan)# vtp version 2 switch(vlan)# vtp mode server switch(vlan)# vtp domain Cisco switch(vlan)# vtp password mypassword - ANSThis switch can send and receive advertisements from only the Cisco domain. This switch can create, modify, and delete all VLANs within the Cisco domain. How are IP addressing designs affected by VLAN implementations? - ANSEach VLAN must have a different network number How can an enterprise network be designed to optimize bandwidth? - ANSby organizing the network to control traffic patterns How is traffic routed between multiple VLANs on a multilayer switch? - ANSTraffic is routed via internal VLAN interfaces.

If all router Ethernet interfaces in an EIGRP network are configured with the default EIGRP timers, how long will a router wait by default to receive an EIGRP packet from its neighbor before declaring the neighbor unreachable? - ANS seconds If no bridge priority is configured in PVST, which criteria is considered when electing the root bridge? - ANSlowest MAC address Immediately after a router completes its boot sequence, the network administrator wants to check the routers configuration. From privileged EXEC mode, which of the following commands can the administrator use for this purpose? (Choose two.) - ANSshow startup-config show running-config In FHRP terminology, what represents a set of routers that present the illusion of a single router to hosts? - ANSvirtual router In the Cisco Enterprise Architecture, which two functional parts of the network are combined to form a collapsed core design? (Choose two.) - ANSdistribution layer

In the context of routing protocols, what is a definition for time to convergence? - ANSthe amount of time for the routing tables to achieve a consistent state after a topology change In which scenario will the use of EIGRP automatic summarization cause inconsistent routing in a network? - ANSwhen the routers in an IPv4 network are connected to discontiguous networks with automatic summarization enabled In which situation would a network administrator install a Cisco Nexus Series or Cisco Catalyst 6500 Series switch to promote infrastructure scalability? - ANSon a data center network to provide expansion and transport flexibility In which two port states does a switch learn MAC addresses and process BPDUs in a PVST network? (Choose two.) - ANSforwarding learning In which two PVST+ port states are MAC addresses learned? (Choose two.) - ANSforwarding learning

On a Cisco switch, where is extended range VLAN information stored? - ANSrunning configuration file Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. A network administrator is configuring multiarea OSPFv3 on the routers. The routing design requires that the router RT1 is a DROTHER for the network in Area 0 and the DR for the network in Area 1. Check the settings and status of the routers. What can the administrator do to ensure that RT1 will meet the design requirement after all routers restart? - ANSUse the ipv6 ospf priority 10 command on the interface g0/2 of RT1. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Fill in the blank. Do not use abbreviations. What is the missing command on router R2 to establish an adjacency between routers R1 and R3? - ANSnetwork 172.16.10.0 0.0.0.255 area 0 Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Which routers are the DR and BDR in this topology? - ANSDR:R3 BDR:R

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Fill in the blank. Do not use abbreviations.Which command is missing on the Layer 3 switch to restore the full connectivity between PC1 and the web server? (Note that typing no shutdown will not fix this problem.) - ANSip address 192.168.20.1 255.255.255. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. R1 and R2 could not establish an EIGRP adjacency. What is the problem? - ANSEIGRP is down on R1. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What are two reasons why the ping messages that are issued from Laptop0 towards Laptop1 are failing? (Choose two.) - ANSThe two interfaces on each of the switches belong to different VLANs. The channel group should be configured as a trunk on each switch. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What is preventing users who are connected to router R from accessing resources located either within the network 192.168.1.0 or the internet? - ANSThe router R2 is not receiving any updates from either router R1 or R3.

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Which code is displayed on the web server? - ANSComplete Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Which switch is the root bridge? - ANSSwitch_ Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Why are users in the OSPF network not able to access the Internet? - ANSThe network statement is misconfigured on router R1. Open the PT Activity. Perform the tasks in the activity instructions and then complete the task. What message is displayed on www.ciscoville.com? - ANSCompletion! Refer the the exibit. What is the role of router R2 in the OSPF domain? - ANSABR Refer to the exhibit. A network administrator configured routers R1 and R2 as part of HSRP group 1. After the routers have been reloaded, a user on Host complained of lack of connectivity to the Internet The network administrator issued the show standby brief command on both routers to verify the HSRP

operations. In addition, the administrator observed the ARP table on Host1. Which entry should be seen in the ARP table on Host1 in order to gain connectivity to the Internet? - ANSthe virtual IP address and the virtual MAC address for the HSRP group 1 Refer to the exhibit. A network administrator has been asked to summarize the networks shown in the exhibit as part of a multiarea OSPF implementation. All addresses are using a subnet mask of 255.255.255.0. What is the correct summarization for these eight networks? - ANS10.0.0.0 255.255.240. Refer to the exhibit. A network administrator has configured OSPFv2 on the two Cisco routers but PC1 is unable to connect to PC2. What is the most likely problem? - ANSInterface Fa0/0 has not been activated for OSPFv2 on router R2. Refer to the exhibit. A network administrator has configured RIPv2 in the given topology. Which path would a packet take to get from the LAN that is connected to R1 to the LAN that is connected to R7? - ANSR1-R2-R6-R Refer to the exhibit. A network administrator has decided that an EtherChannel between ports 0/1 and 0/2 on switches S1 and S2 would help performance. After making the configuration, the administrator notices no performance gain. Based on the output that is shown, what two possible assumptions could a network

administrator make? (Choose two.) - ANSOne of the ports on S2 was not configured correctly. The EtherChannel bundle is not working. Refer to the exhibit. A network administrator is configuring inter-VLAN routing. However, the communication between VLAN 10 and VLAN 20 fails. Based on the output of the show vlancommand, what is the cause of the problem? - ANSGi1/ and Gi1/2 are not assigned to their respective VLANs. Refer to the exhibit. A network administrator is configuring OSPF for R1 and R2, but the adjacency cannot be established. What is the cause of the issue? - ANSThe area ID is misconfigured. Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem? - ANSThe encapsulation dot1Q 5 command contains the wrong VLAN. Refer to the exhibit. A network administrator issued the show etherchannel summary command on the switch S1. What conclusion can be drawn? - ANSThe EtherChannel is not functional.

Refer to the exhibit. A network engineer is troubleshooting host connectivity on a LAN that uses a first hop redundancy protocol. Which IPv4 gateway address should be configured on the host? - ANS192.168.2. Refer to the exhibit. A router-on-a-stick configuration was implemented for VLANs 15, 30, and 45, according to the show running-config command output. PCs on VLAN 45 that are using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN 30 in the 172.16.30.0 /24 network. Which error is most likely causing this problem? - ANSThere is an incorrect IP address configured on GigabitEthernet 0/0.30. Refer to the exhibit. After attempting to enter the configuration that is shown in router RTA, an administrator receives an error and users on VLAN 20 report that they are unable to reach users on VLAN 30. What is causing the problem? - ANSRTA is using the same subnet for VLAN 20 and VLAN 30. Refer to the exhibit. After the configuration shown is applied on router R1, the exhibited status message is displayed. Router R1 is unable to form a neighbor relationship with R2 on the serial 0/1/0 interface. What is the most likely cause of this problem? - ANSThe IPv4 address configured on the neighbor that is connected to R1 serial 0/1/0 is incorrect.

Refer to the exhibit. All networks are active in the same EIGRP routing domain. When the auto-summary command is issued on R3, which two summary networks will be calculated on R3? (Choose two.) - ANS172.16.0.0/ 192.168.10.0/ Refer to the exhibit. An administrator wants EIGRP on Router1 to load balance traffic to network 2001:db8:11:10::/64 across two interfaces. Currently traffic is using only interface GigabitEthernet0/1. A second route, not in the routing table, is available with a metric of 264000. What value is needed in the variance command to make EIGRP put the second route into the routing table? - ANS Refer to the exhibit. An EtherChannel was configured between switches S1 and S2, but the interfaces do not form an EtherChannel. What is the problem? - ANSThe EtherChannel was not configured with the same allowed range of VLANs on each interface. Refer to the exhibit. Based on the command output shown, what is the status of the EtherChannel? - ANSThe EtherChannel is in use and functional as indicated by the SU and P flags in the command output.

Refer to the exhibit. Communication between the VLANs is not occurring. What could be the issue? - ANSThe Gi1/1 switch port is not in trunking mode. Refer to the exhibit. Considering that R2, R3, and R4 are correctly configured, why did R1 not establish an adjacency with R2, R3, and R4? - ANSbecause the Fa0/ interface of R1 is declared as passive for EIGRP Refer to the exhibit. Directly connected networks configured on router R1 are not being shared with neighboring routers through OSPFv3. What is the cause of the issue? - ANSThere is a mismatch of OSPF process ID in commands. Refer to the exhibit. Fill in the blank. Do not use abbreviations. The ____________________ command must be issued to configure R1 for multiarea OSPF. - ANSnetwork 192.168.10.128 0.0.0.127 area 1 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? - ANSR1, R3, R5, R Refer to the exhibit. PC1 is unable to communicate with server 1. The network administrator issues the show interfaces trunk command to begin

troubleshooting. What conclusion can be made based on the output of this command? - ANSInterface G0/2 is not configured as a trunk. Refer to the exhibit. R1 and R2 are connected to the same LAN segment and are configured to run OSPFv3. They are not forming a neighbor adjacency. What is the cause of the problem? - ANSThe timer intervals of R1 and R2 do not match. Refer to the exhibit. R2 has two possible paths to the 192.168.10.4 network. What would make the alternate route meet the feasibility condition? - ANSa reported distance less than 3523840 Refer to the exhibit. R3 has two possible paths to the 172.16.99.0 network. What is the reported distance of the feasible successor route? - ANS Refer to the exhibit. Remote users are experiencing connectivity problems when attempting to reach hosts in the 172.21.100.0 /24 network. Using the output in the exhibit, what is the most likely cause of the connectivity problem? - ANSThe GigabitEthernet 0/1 interface is not participating in the EIGRP process.

Refer to the exhibit. Router R3 is receiving multiple routes through the EIGRP routing protocol. Which statement is true about the implementation of summarization in this network? - ANSAutomatic summarization is disabled on R3. Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency. What action should be taken to solve this problem? - ANSConfigure both routers with the same EIGRP autonomous system number. Refer to the exhibit. The switch does the routing for the hosts that connect to VLAN 5. If the PC accesses a web server from the Internet, at what point will a VLAN number be added to the frame? - ANSNo VLAN number is added to the frame in this design. Refer to the exhibit. What are three resulting DR and BDR elections for the given topology? (Choose three.) - ANSR1 is DR for segment A. R2 is BDR for segment A. R5 is BDR for segment B.

Refer to the exhibit. What is indicated by the O IA in the router output? - ANSThe route was learned from another area. Refer to the exhibit. What is the role of the SW3 switch? - ANSroot bridge Refer to the exhibit. What statement is true about the output of the show standby command? - ANSThe router is currently forwarding packets. Refer to the exhibit. What the amount of time that has elapsed since the router received a hello packet? - ANS4 seconds Refer to the exhibit. What three conclusions can be drawn from the displayed output? (Choose three.) - ANSThe DR can be reached through the GigabitEthernet 0/0 interface. There have been 9 seconds since the last hello packet sent. The router ID values were not the criteria used to select the DR and the BDR. Refer to the exhibit. Which command was issued on a Cisco switch that resulted in the exhibited output? - ANSshow port-security address

Refer to the exhibit. Which conclusion can be drawn from this OSPF multiaccess network? - ANSWith an election of the DR, the number of adjacencies is reduced from 6 to 3. Refer to the exhibit. Which devices exist in the failure domain when switch S3 loses power? - ANSPC_3 and AP_2 Refer to the exhibit. Which statement is supported by the output? - ANSA default route is being learned through an external process. Refer to the exhibit. Which switch will be elected the root bridge and which switch will place a port in blocking mode? (Choose two.) - ANSSW3 will become the root bridge. SW4 will get a port blocked. Refer to the exhibit. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch? - ANSEtherChannel Refer to the exhibit. Which trunk link will not forward any traffic after the root bridge election process is complete? - ANSTrunk2

Refer to the exhibit. Which two conclusions can be drawn from the exhibited configuration? (Choose two.) - ANSThe configuration supports unequal-cost load balancing. Any EIGRP-learned route with a metric less than 3 times the successor metric will be installed in the local routing table. Refer to the exhibit. Which two networks contain feasible successors? (Choose two.) - ANS10.44.100.252 192.168.71.0 Refer to the exhibit. Which two routes will be advertised to the router ISP if autosummarization is disabled? (Choose two.) - ANS10.1.2.0/24 10.1.4.0/30 Refer to the exhibit. Which two statements are correct? (Choose two.) - ANSTo reach network 192.168.1.0, traffic will exit via the Serial0/0/0 interface. The routing table contains routes from multiple areas. Refer to the exibit. What is the role of router R2 in the OSPF domain? - ANSABR

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? - ANSipv6 ospf 20 area 0 The graphic shows some partial output of the show ipv6 route command: Refer to the exhibit. What two conclusions can be drawn based on the output of the show ipv6 route command? (Choose two.) - ANSR2 receives default route information from another router. Route 2001:DB8:CAFE:B001::/64 is a route advertised by an ABR. The graphic shows the partial output of the show ip route command: Refer to the exhibit. What can be concluded about network 192.168.4.0 in the R2 routing table? - ANSThe network was learned from a router within the same area as R2. The network administrator has been asked to summarize the routes for a new OSPF area. The networks to be summarized are 172.16.8.0, 172.16.10.0, and 172.16.12.0 with subnet masks of 255.255.255.0 for each network. Which command should the administrator use to forward the summary route for area 15 into area 0? - ANSarea 15 range 172.16.8.0 255.255.248.0