Implementing Cisco Enterprise Advanced Routing and Services (300-410 ENARSI)
Last Update Oct 19, 2025
Total Questions : 615
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Refer to Exhibit.
A network administrator added one router in the Cisco DNA Center and checked its discovery and health from the Network Health Dashboard. The network administrator observed that the router is still showing up as unmonitored. What must be configured on the router to mount it in the Cisco DNA Center?
Refer to the exhibit.
An administrator is configuring a GRE tunnel to establish an EIGRP neighbor to a remote router. The other tunnel endpoint is already configured. After applying the configuration as shown, the tunnel started flapping. Which action resolves the issue?
Refer to the exhibit.
R1 is configured with IP SLA to check the availability of the server behind R6 but it kept failing. Which configuration resolves the issue?
A customer requested a GRE tunnel through the provider network between two customer sites using loopback to hide internal networks. Which configuration on R2 establishes the tunnel with R1?
Refer to the exhibit.
An engineer must redistribute networks 192.168.10.0/24 and 192.168.20.0/24 into OSPF from EIGRP. where the metric must be added when traversing through multiple hops to start an external route of 20 The engineer notices that the external metric is fixed and does not add at each hop. Which configuration resolves the issue?
Refer to the exhibit.
The network engineer configured the summarization of the RIP routes into the OSPF domain on R5 but
still sees four different 172.16.0.0/24 networks on R4. Which action resolves the issue?
Refer to the exhibit.
An engineer configured SNMP communities on the Core_SW1, but the SNMP server cannot obtain information from Core_SW1. Which configuration resolves this issue?
Refer to the exhibit.
An engineer must block access to the console ports for all corporate remote Cisco devices based on the recent corporate security policy but the security team stilt can connect through the console port. Which configuration on the console port resolves the issue?
Refer to the exhibit. The client server but the show command does not show the IPv6 DHCP bindings on the server. Which action resolves the issue?
Refer to the exhibit. An engineer configured summarization for the R1 loopback addresses and failed. Which action permits the successful advertisement of the R1 loopback addresses?
Refer to the exhibit A customer reported a failure and intermittent disconnection between two office buildings site X and site Y The network team finds that site X and site Y are exchanging email application traffic with the data center network Which configuration resolves the issue between site X and site Y?
A)
B)
C)
D)
Refer to the exhibit. An administrator must harden a router, but the administrator failed to test the SSH access successfully to the router. Which action resolves the issue?
Which IPv6 first hop security feature controls the traffic necessary for proper discovery of neighbor device operation and performance?
Refer to the exhibit. R10 attempts to copy an image file from R11 using TFTP, and the operation is timing out. Which action resolves the issue?
Refer to the exhibit.
An engineer implemented CoPP to limit Telnet traffic to protect the router CPU. It was noticed that the Telnet traffic did not pass through CoPP Which configuration resolves the issue?
An engineer is implementing a coordinated change with a server team. As part of the change, the engineer must configure interlace GigabitEthernet2 in an existing VRF "RED" then move theinterface to an existing VRF "BLUE" when the server team is ready. The engineer configured interface GigabitEthemet2 in VRF "RED"
Which configuration completes the change?
The summary route is not shown in the RouterB routing table after this below configuration on Router_A
.
Which Router_A configuration resolves the issue by advertising the summary route to Router B?
Refer to the exhibit. When an FTP client attempts to use passive FTP to connect to the FTP server, the file transfers fail Which action resolves the issue?
Refer to the exhibit.
An engineer must configure a LAN-to-LAN IPsec VPN between R1 and the remote router. Which IPsec
Phase 1 configuration must the engineer use for the local router?
Refer to the exhibit. Users on a call center report that they cannot browse the internet on Saturdays during the afternoon. Which configuration resolves the issue?
A)
B)
C)
D)
Refer to the exhibit R2 has been receiving routes from R4 that originated outside AS300 A network engineer configured an AS-Path ACL to avoid adding these routes to the R2 BGP table but the routes are still present in the R2 routing table Which action resolves the issue?
Refer to the exhibit. R1 uses SP1 as the primary path. A network engineer must force all SSH traffic generated from R1 toward SP2. Which configuration accomplishes the task?
A)
B)
C)
D)
Refer to the Exhibit.
R1 and R2 use IGP protocol to route traffic between AS 100 and AS 200 despite being configured to use BGP. Which action resolves the issue and ensures the use of BGP?
Refer to the exhibit.
The none area 0 routers in OSPF still receive more specific routes of 10.1.1.0.10.1.2.0.10.1.3.0 from area 0. Which action resolves the issue?
Refer to the exhibit. An engineer cannot determine the time of the problem on R1 due to a mismatch between the router local clock and legs. Which command synchronizes the time between new log entries and the local clock on R1?
Refer to the exhibit. A network administrator configured NetFlow data, but the data is not visible at the NetFlow collector. Which configuration allows the router to send the records?
Refer to the exhibit After a misconfiguration by a junior engineer, the console access to router A is not working Which configuration allows access to router A?
A)
B)
C)
D)
Refer to lhe exhibit. APC is configured to obtain an IP address automatically, but it receives an IP address only from the 169.254.0.0 subnet The DHCP server logs contained no DHCPDISCOVER message from the MAC address of the PC. Which action resolves the issue?
Refer to the exhibit.
The network administrator configured the Chicago router to mutually redistribute the LA and NewYork routes with OSPF routes to be summarized as a single route in EIGRP using the longest summary mask:
After the configuration, the New York router receives all the specific LA routes but the summary route. Which set of configurations resolves the issue on the Chicago router?
A network is configured with IP connectivity, and the routing protocol between devices started having problems right after the maintenance window to implement network changes. Troubleshoot and resolve to a fully functional network to ensure that:
R4
R5
:592
Refer to the exhibit An engineer investigates an IPv6 EIGRP neighbor adjacency issue that sees the neighbors flapping and issued a ping from R1 to its directly connected neighbor. The link between the switches is stable at Layer 2. and other connected devices are also functioning. Which action resolves the issue?
:580
An engneer must configure encrypted packets for a single router OSPF neighoorsMp Which configuration meets this requirement?
Refer to the exhibit.
The administrator noticed that the connection was flapping between the two ISPs instead of switching to ISP2 when the ISP1 failed. Which action resolves the issue?
Refer to the exhibit.
With the partial configuration of a router-on-a-stick. Clients in VLAN 10 on Gi2 cannot obtain IP configuration from the central DHP server is reachable by a successful ping from the route. Which action resolves the issue?
Refer to the exhibit.
When the FastEthemet0/1 goes down, the route to 172.29.0 0/16 via 192.168.253 2 is not installed in the RIB. Which action resolves the issue?
Refer to the exhibit.
Which routes from OSPF process 5 are redistributed into EIGRP?
Refer to the exhibit. A network administrator configured NTP on a Cisco router to get synchronized time for system and logs from a unified time source The configuration did not work as desired Which service must be enabled to resolve the issue?
Refer to the exhibit.
A network engineer for AS64512 must remove the inbound and outbound traffic from link A during maintenance without closing the BGP session so that there ............ a backup link over link A toward the ASN. Which BGP configuration on R1 accomplishes this goal?
A)
B)
C)
D)
Refer to exhibit.
Routing protocols are mutually redistributed on R3 and R1. Users report intermittent connectivity to services hosted on the 10.1.1.0/24 prefix. Significant routing update changes are noticed on R3 when the show ip route profile
command is run. How must the services be stabilized?
Refer to the exhibit.
A company is evaluating multiple network management system tools. Trending graphs generated by SNMP data are returned by the NMS and appear to have multiple gaps. While troubleshooting the issue, an engineer noticed the relevant output. What solves the gaps in the graphs?
Refer to the exhibit.
A junior engineer updated a branch router configuration. Immediately after the change, the engineer receives calls from the help desk that branch personnel cannot reach any network destinations. Which configuration restores service and continues to block 10.1.1.100/32?
Refer to the exhibit. an engineer is trying to get 192.168.32.100 forwarded through 10.1.1.1, but it was forwarded through 10.1.1.2. What action forwards the packets through 10.1.1.1?
Refer to the exhibit.
Which control plane policy limits BGP traffic that is destined to the CPU to 1 Mbps and
ignores BGP traffic that is sent at higher rate?
During the maintenance window an administrator accidentally deleted the Telnet-related
configuration that permits a Telnet connection from the inside network (Eth0/0) to the outside of the networking between Friday – Sunday night hours only. Which configuration resolves the issue?
A)
B)
C)
D)
Which Cisco VPN technology can use multipoint tunnel, resulting in a single GRE tunnel interface on the hub, to support multiple connections from multiple spoke devices?
Drag and drop the MPLS VPN device types from me left onto the definitions on the right.
Refer to the exhibit.
Redistribution is enabled between the routing protocols, and nowPC2 PC3, and PC4 cannot reach PC1. What are the two solutions to fix the problem? (Choose two.)
Refer to Exhibit.
Which statement about redistribution from BGP into OSPF process 10 is true?
Refer to the following output:
Router#show ip nhrp detail
10.1.1.2/8 via 10.2.1.2, Tunnel1 created 00:00:12, expire 01:59:47
TypE. dynamic, Flags: authoritative unique nat registered used
NBMA address: 10.12.1.2
What does the authoritative flag mean in regards to the NHRP information?
When provisioning a device in Cisco DNA Center, the engineer sees the error message “Cannot select the device. Not compatible with template”.
What is the reason for the error?
Refer to the exhibit.
An IP SLA was configured on router R1 that allows the default route to be modified in the event that Fa0/0 loses reachability with the router R3 Fa0/0 interface. The route has changed to flow through
router R2. Which debug command is used to troubleshoot this issue?
Which two statements about VRF-Lite configurations are true? (Choose two.)
Refer to the exhibit.
Which interface configuration must be configured on the spoke A router to enable a dynamic DMVPN tunnel with the spoke B router?
An engineer configured the wrong default gateway for the Cisco DNA Center enterprise interface during the install. Which command must the engineer run to correct the configuration?
Refer to the exhibit.
Why is the remote NetFlow server failing to receive the NetFlow data?
Which method changes the forwarding decision that a router makes without first changing the routing table or influencing the IP data plane?
Refer to the exhibit.
The administrator is trying to overwrite an existing file on the TFTP server that was previously uploaded by another router. However, the attempt to update the file fails. Which action resolves this issue?
Refer to the exhibit.
A prefix list is created to filter routes inbound to an EIGRP process except for network 10 prefixes After the prefix list is applied no network 10 prefixes are visible in the routing table from EIGRP. Which configuration resolves the issue?
Refer to the exhibit.
An engineer must establish a point-to-point GRE VPN between R1 and the remote site. Which configuration accomplishes the task for the remote site?
Refer to Exhibit.
PC2 is directly connected to R1. A user at PC2 cannot Telnet to 2001:db8:a:b::10. The user can ping
2001:db8:a:b::10 and receive DHCP-related information from the DHCP server. Which action resolves
the issue?
Refer to the exhibit.
Users in VLAN46 cannot get the IP from the DHCP server. Assume that all the parameters are configured properly in VLAN 10 and on the DHCP server Which command on interlace VLAN46 allows users to receive IP from the DHCP server?
Refer to the exhibit.
A network administrator is troubleshooting OSPF adjacency issue by going through the console logs in the router, but due to an overwhelming log message stream it is impossible to capture the problem Which two commands reduce console log messages to relevant OSPF neighbor problem details so that the issue can be resolved? (Choose two)
Refer to the exhibit An enterprise operations team must monitor all application server traffic in the data center The team finds that traffic coming from the hub site from R3 and R6 rs monitored successfully but traffic destined to the application server is not monitored Which action resolves the issue?
A)
B)
C)
D)
Refer to the exhibit. Which configuration advertises more specific routes to R1 without sending a BGP summary route?
Refer to the exhibit.
A network administrator notices these console messages from host 10.11.110.12 originating from interface E1/0. The administrator considers this an unauthorized attempt to access SNMP on R1. Which action prevents the attempts to reach R1 E1/0?
Refer to the exhibit.
An engineer must configure PBR on R1 to reach to 10.2.2.0/24 via R3 AS64513 as the primary path and a backup route through default route via R2 AS64513. All BGP routes are in the routing table of R1. but a static default route overrides BGP routes. Which PBR configuration achieves the objective?
Refer to the exhibit.
A network engineer must establish communication between three different customer sites with these requirements:
Site-A: must be restricted to access to any users at Site-B or Site-C.
Site-B and Site-C must be able to communicate between sites and share routes using OSPF.
Which configuration meets the requirements?
A network administrator is trying to access a branch router using TACACS+ username and password credentials, but the administrator cannot log in to the router because the WAN connectivity is down. The branch router has following AAA configuration:
Which command will resolve this problem when WAN connectivity is down?
Refer to the exhibit.
A bank ATM site has difficulty connecting with the bank server. A network engineer troubleshoots the issue and finds that R4 has no active route to the bank ATM site. Which action resolves the issue?
Refer to the exhibit Which command must be configured to make VRF CCNP work?
:586
While BGP internet routes are redistributed to a lower class of router via RIP. packets are being dropped and routes are failing to be distributed in RIP. Which action resolves the issue?
Refer to the exhibit. After recovering from a power failure. Ethernet0/1 stayed down while Ethernet0/0 returned to the up/up state The default route through ISP1 was not reinstated m the routing table until Ethernet0/1 also came up Which action resolves the issue?
Refer to the exhibit.
An engineer configures the router 10.1.100.10 for EIGRP autosummarization so that R1 should receive the summary route of 10.0.0.0/8. However, R1 receives more specific /24 routes.
Which action resolves this issue?
A network is configured with IP connectivity, and the routing protocol between devices started having problems right after the maintenance window to implement network changes. Troubleshoot and resolve to a fully functional network to ensure that:
R4
R5
Refer to the exhibit. Which action limits the access to R2 from 192.168.12.1?
Refer to the exhibit. An engineer Is troubleshooting a routing loop on the network to reach the 172.16.3.0/16 from the OSPF domain. Which configuration on router R1 resolves the Issue?
A)
B)
C)
D)
Refer to the exhibit. An engineer has successfully set up a floating static route from the BRANCH router to the HQ network using HQ_R1 as the primary default gateway When the g0/0 goes down on HQ_R1, the branch network cannot reach the HQ network 192.168.20.0/24. Which set of configurations resolves the issue?
Refer to the exhibit.
SanFrancisco and Boston routers are choosing slower links to reach each other despite the direct links being up Which configuration fixes the issue?
An engineer configured a Cisco router to send reliable and encrypted notifications for any events to the management server. It was noticed that the notification messages are reliable but not encrypted. Which action resolves the issue?
Refer to the exhibit.
A client is concerned that passwords are visible when running this show archive log config all.
Which router configuration is needed to resolve this issue?
Drag and drop the MPLS concepts from the left onto the descriptions on the right.
Refer to the exhibit.
Which interface configuration must be configured on the HUB router to enable MVPN with mGRE mode?
An engineer configured access list NON-CISCO in a policy to influence routes
What are the two effects of this route map configuration? (Choose two.)
After some changes in the routing policy, it is noticed that the router in AS 45123 is being used as a transit AS router for several service provides. Which configuration ensures that the branch router in AS 45123 advertises only the local networks to all SP neighbors?
A)
B)
C)
D)
An engineer is trying to copy an IOS file from one router to another router by using TFTP. Which two actions are needed to allow the file to copy? (Choose two.)
What is the role of a route distinguisher via a VRF-Lite setup implementation?
Refer to the exhibit.
AAA server 10.1.1.1 is configured with the default authentication and accounting settings, but the switch cannot communicate with the server Which action resolves this issue?
Refer to the exhibit.
An engineer is trying to connect to a device with SSH but cannot connect. The engineer connects by using the console and finds the displayed output when troubleshooting. Which command must be used in configuration mode to enable SSH on the device?
Which two methods use IPsec to provide secure connectivity from the branch office to the headquarters office? (Choose two.)
Refer the exhibit.
Which action resolves intermittent connectivity observed with the SNMP trap
packets?
Refer to the exhibit.
Which configuration configures a policy on R1 to forward any traffic that is sourced from
the 192.168.130.0/24 network to R2?
Which command allows traffic to load-balance in an MPLS Layer 3 VPN configuration?
Which attribute eliminates LFAs that belong to protected paths in situations where links in a network are connected through a common fiber?
Users were moved from the local DHCP server to the remote corporate DHCP server. After the move,
none of the users were able to use the network.
Which two issues will prevent this setup from working properly? (Choose two)
Which command is used to check IP SLA when an interface is suspected to receive lots of traffic with options?
An engineer configured a company’s multiple area OSPF head office router and Site A cisco
routers with VRF lite. Each site router is connected to a PE router of an MPLS backbone.
After finishing both site router configurations, none of the LSA 3,4 5, and 7 are installed at Site A router. Which configuration resolves this issue?
Refer to the exhibit.
An administrator that is connected to the console does not see debug messages when
remote users log in. Which action ensures that debug messages are displayed for remote logins?
Refer to the exhibit.
Network operations cannot read or write any configuration on the device with this configuration from the operations subnet. Which two configurations fix the issue? (Choose two.)
Refer to the exhibit.
In which circumstance does the BGP neighbor remain in the idle condition?
Refer to the exhibit.
An engineer is trying to generate a summary route in OSPF for network 10.0.0.0/8, but the
summary route does not show up in the routing table. Why is the summary route missing?
Drag and drop the SNMP attributes in Cisco IOS devices from the left onto the correct SNMPv2c or SNMPV3 categories on the right.
Drag and Drop the IPv6 First-Hop Security features from the left onto the definitions on the right.
R2 has a locally originated prefix 192.168.130.0/24 and has these configurations:
What is the result when the route-map OUT command is applied toward an eBGP neighbor R1 (1.1.1.1) by using the neighbor 1.1.1.1 route-map OUT out command?
Refer to the exhibit.
After redistribution is enabled between the routing protocols; PC2, PC3, and PC4 cannot reach PC1. Which action can the engineer take to solve the issue so that all the PCs are reachable?
A network engineer is investigating a flapping (up/down) interface issue on a core switch that is synchronized to an NTP server. Log output currently does not show the time of the flap. Which command allows the logging on the switch to show the time of the flap according to the clock on the device?
Drag and drop the MPLS VPN device types from the left onto the definitions on the right.
Refer to the exhibit.
The R1 and R2 configurations are:
The neighbor is not coming up. Which two sets of configurations bring the neighbors up? (Choose two.)
Which configuration feature should be used to block rogue router advertisements instead of using the IPv6 Router Advertisement Guard feature?
A customer reports to the support desk that they cannot print from their PC to the local printer id:401987778. Which tool must be used to diagnose the issue using Cisco DNA Center Assurance?
Refer to the exhibit.
The administrator successfully logs into R1 but cannot access privileged mode commands. What should be configured to resolve the issue?
Refer to the exhibit. A network administrator configured mutual redistribution on R1 and R2 routers, which caused instability in the network. Which action resolves the issue?
Refer to the exhibit.
A network administrator logs into the router using TACACS+ username and password credentials, but the administrator cannot run any privileged commands Which action resolves the issue?
Refer to the exhibit.
An IPv6 network was newly deployed in the environment and the help desk reports that R3 cannot SSH to the R2s Loopback interface. Which action resolves the issue?
Refer to Exhibit.
The network administrator configured the branch router for IPv6 on the E0/0 interface. The neighboring router is fully configured to meet requirements, but the neighbor relationship is not coming up. Which action fixes the problem on the branch router to bring the IPv6 neighbors up?
Refer to Exhibit.
A network administrator enables DHCP snooping on the Cisco Catalyst 3750-X switch and configures the uplink port (Port-channel2) as a trusted port. Clients are not receiving an IP address, but when DHCP snooping is disabled, clients start receiving IP addresses. Which global command resolves the issue?
Which Ipv6 first-hop security feature helps to minimize denial of service attacks?
Refer to the exhibit.
A network administrator is using the DNA Assurance Dashboard panel to troubleshoot an OSPF adjacency that failed between Edge_NYC interface GigabitEthernet1/3 with Neighbor Edge_SNJ. The administrator observes that the neighborship is stuck in exstart state. How does the administrator fix this issue?
Refer to the exhibit.
The network administrator can see the DHCP discovery packet in R1. but R2 is not replying to the DHCP request. The R1 related interface is configured with the DHCP helper address. If the PC is directly connected to the FaO/1 interface on R2, the DHCP server assigns as IP address from the DHCP pool to the PC. Which two commands resolve this issue? (Choose two.)
Refer to the exhibit.
The OSPF routing protocol is redistributed into the BGP routing protocol, but not all the OSPF routes are distributed into BGP Which action resolves the issue?
Refer to the exhibit. R1 and R2 cannot establish an EIGRP adjacency. Which action establishes EIGRP adjacency?
An engineer must configure a Cisco router to initiate secure connections from the router to other devices in the network but kept failing. Which two actions resolve the issue? (Choose two.)
Refer to the exhibit.
Which two actions should be taken to access the server? (Choose two.)
Refer to the exhibit.
R1 is being monitored using SNMP and monitoring devices are getting only partial information. What action should be taken to resolve this issue?
Refer to the exhibit.
While troubleshooting an EIGRP neighbor adjacency problem, the network engineer notices that the interface connected to the neighboring router is not participating in the EIGRP process. Which action resolves the issues?
Which two components are needed for a service provider to utilize the LVPN MPLS application? (Choose two.)
Refer to the exhibit. The Los Angeles and New York routers are receiving routes from Chicago but not from each other. Which configuration fixes the issue?
Refer to the exhibit.
A company with autonomous system number AS65401 has obtained IP address block 209.165.200.224/27 fro, ARIN. The company needed more IP addresses and was assigned block209.165.202.128/27 from ISP2. An engineer is ISP1 reports they are receiving ISP2 routes from AS65401. Which configuration onR1 resolves the issue?
A)
B)
C)
D)
Refer to the exhibit.
R1 is connected with R2 via GigabitEthernet0/0, and R2 cannot ping R1. What action will fix the issue?
In which two ways does the IPv6 First-Hop Security Binding Table operate? (Choose two.)
While troubleshooting connectivity issues to a router, these details are noticed:
Standard pings to all router interfaces, including loopbacks, are successful.
Data traffic is unaffected.
SNMP connectivity is intermittent.
SSH is either slow or disconnects frequently.
Which command must be configured first to troubleshoot this issue?
Refer to the exhibit.
Users in the branch network of 2001:db8:0:4::/64 report that they cannot access the Internet. Which command is issued in IPv6 router EIGRP 100 configuration mode to solve this issue?
Refer to the exhibit.
The network administrator configured VRF lite for customer A. The technician at the remote site misconfigured VRF on the router. Which configuration will resolve connectivity for both sites of customer_a?
Refer to the exhibit.
R2 is a route reflector, and R1 and R3 are route reflector clients. The route reflector learns the route to 172.16.25.0/24 from R1, but it does not advertise to R3. What is the reason the route is not advertised?
Which component of MPLS VPNs is used to extend the IP address so that an engineer is able to
identify to which VPN it belongs?
Drag and drop the DHCP messages from the left onto the correct uses on the right.
Refer to the exhibit Which action ensures that 10 10 10 0/24 reaches 10 10 20 0/24 through the direct link between R1 and R2?
Exhibit:
Bangkok is using ECMP to reach to the 192.168.5.0/24 network. The administrator must configure Bangkok in such a way that Telnet traffic from 192.168.3.0/24 and192.168.4.0/24 networks uses the HongKong router as the preferred router. Which set of configurations accomplishes this task?
When determining if a system is capable of support, what is the minimum time spacing required for a BFD control packet to receive once a control packet is arrived?
Refer to the exhibit.
Troubleshoot and ensure that branch B only ever uses the MPLS B network to reach HQ. Which action achieves this requirement?
A DMVPN single hub topology is using IPsec + mGRE with OSPF. What should be configured on the hub to ensure it will be the designated router?
Refer to Exhibit.
Which two configurations allow clients to get dynamic ip addresses assigned?
Refer to the exhibit. A network administrator redistributed the default static route into OSPF toward all internal routers to reach to Internet. Which set of commands restores reachability to the Internet by internal routers?
Refer to Exhibit.
Traffic from the branch network should route through HQ R1 unless the path is unavailable. An engineer tests this functionality by shutting down interface on the BRANCH router toward HQ_R1 router but 192.168.20.0/24 is no longer reachable from the branch router. Which set of configurations resolves the issue?
Refer to the exhibit.
The Math and Science departments connect through the corporate. IT router but users in the Math department must not be able to reach the Science department and vice versa Which configuration accomplishes this task?
Clients on ALS2 receive IPv4 and IPv6 addresses but clients on ALS1 receive only IPv4 addresses and not IPv6 addresses. Which action on DSW1 allows clients on ALS1 to receive IPv6 addresses?
Refer to the exhibit. The network administrator has configured the Customer Edge router (AS 64511) to send only summarized routes toward ISP-1 (AS 100) and ISP-2 (AS 200).
router bgp 64511
network 172.16.20.0 mask 255.255.255.0
network 172.16.21.0 mask 255.255.255.0
network 172.16.22.0 mask 255.255.255.0
network 172.16.23.0 mask 255.255.255.0
aggregate-address 172.16.20.0 255.255.252.0
After this configuration. ISP-1 and ISP-2 continue to receive the specific routes and the summary route. Which configuration resolves the issue?
Refer to the exhibit.
A network is under a cyberattack. A network engineer connected to R1 by SSH and enabled the terminal monitor via SSH session to find the source and destination of the attack. The session was flooded with messages, which made it impossible for the engineer to troubleshoot the issue. Which command resolves this issue on R1?
Refer to the exhibit. The administrator configured route advertisement to a remote low resources router to use only the default route to reach any network but failed. Which action resolves this issue?
Refer to the exhibit.
PC-2 failed to establish a Telnet connection to the terminal server. Which configuration resolves the issue?
Refer to the exhibit.
The network administrator must mutually redistribute routes at the Chicago router to the LA and NewYork routers. The configuration of the Chicago router is this:
After the configuration, the LA router receives all the NewYork routes, but NewYork router does not receive any LA routes. Which set of configurations fixes the problem on the Chicago router?
A)
B)
C)
D)
Refer to the exhibit.
A network administrator is discovering a Cisco Catalyst 9300 and a Cisco WLC 3504 in Cisco DNA Center. The Catalyst 9300 is added successfully However the WLC is showing [ error "uncontactable" when the administrator tries to add it in Cisco DNA Center. Which action discovers WLC in Cisco DNA Center successfully?
Refer to the exhibit.
An engineer identifier a Layer 2 loop using DNAC. Which command fixes the problem in the SF-D9300-1 switch?
Refer to the exhibit.
An engineer wanted to set a tag of 30 to route 10 1.80.65/32 but it failed How is the issue fixed?
Refer to the exhibit. R2 has two paths to reach 192.168.13.0/24. but traffic is sent only through R3. Which action allows traffic to use both paths?
When configuring Control Plane Policing on a router to protect it from malicious traffic, an engineer observes that the configured routing protocols start flapping on
that device. Which action in the Control Plane Policy prevents this problem in a production environment while achieving the security objective?
Which feature drops packets if the source address is not found in the snooping table?
Exhibit:
An engineer configured R2 and R5 as route reflectors and noticed that not all routes are sent to R1 to advertise to the eBGP peers. Which iBGP routers must be configured as route reflectors to advertise all routes to restore reachability across all networks?
Refer to the exhibit.
A network administrator configured mutual redistribution on R1 and R2 routers, which caused instability in the network. Which action resolves the issue?
What does IPv6 Source Guard utilize to determine if IPv6 source addresses should be forwarded?
Refer to the exhibit. The DHCP client is unable to receive an IP address from the DHCP server RouterB is configured as follows:
Interface fastethernet 0/0
description Client DHCP ID 394482431
Ip address 172 31 11 255 255.255 0
!
ip route 172.16.1.0 255 255 255.0 10.1.1.2
Which command is required on the fastethernet 0/0 interface of RouterB to resolve this issue?
TESTED 19 Oct 2025
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