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问题 #1
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.)
A. Configure transport input ssh command on the console.
B. Configure a domain name. C.Configure a crypto key to be generated. D.Configure a source port for the SSH connection to initiate.
E. Configure a TACACS+ server and enable it.
问题 #2
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?
A. Remove the prefix keyword from the distribute-list command.
B. Remove the line with the sequence number 10 from the prefix list. C.Change the direction of the distribute-list command from out to in. D.Remove the line with the sequence number 5 from the prefix list.
问题 #3
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? A.Set the conform-action and exceed-action to transmit initially to test the ACLs and transmit rates and apply the Control Plane Policy in the output direction.
B. Set the conform-action and exceed-action to transmit initially to test the ACLs and transmit rates and apply the Control Plane Policy in the input direction. C.Set the conform-action to transmit and exceed-action to drop to test the ACLs and transmit rates and apply the Control Plane Policy in the input direction. D.Set the conform-action to transmit and exceed-action to drop to test the ACLs and transmit rates and apply the Control Plane Policy in the output direction.
问题 #4
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?
A. route map to set the metrics of learned routes to 110
B. tunnel interface of the hub with ip nhrp ospf dr C.OSPF priority to 0 D.OSPF priority greater than 1
问题 #5
Refer to the exhibits. All the serial links between R1, R2, and R3 have the same bandwidth. Users on the 192.168.1.0/24 network report slow response times while they access resources on network 192.168.3.0/24. When a traceroute is run on the path, it shows that the packet is getting forwarded via R2 to R3 although the link between R1 and R3 is still up. What must the network administrator do to fix the slowness?
A. Add a static route on R1 using the next hop of R3.
B. Remove the static route on R1. C.Change the Administrative Distance of EIGRP to 5. D.Redistribute the R1 static route to EIGRP.
问题 #6
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?
A. HQ_R3(config)# ip sla responder HQ_R3(config)# ip sla responder icmp-echo 172.16.35.1
B. BRANCH(config)# ip sla 1 BRANCH(config-ip-sla)# icmp-echo 192.168.100.2 C.HQ_R3(config)# ip sla responder HQ_R3(config)# ip sla responder icmp-echo 172.16.35.5 D.BRANCH(config)# ip sla 1 BRANCH(config-ip-sla)# icmp-echo 192.168.100.1
问题 #7
What are two MPLS label characteristics (Choose two.)
A. The label edge router swaps labels on the received packets.
B. Labels are imposed in packets after the Layer 3 header. C.LDP uses TCP for reliable delivery of information. D.An MPLS label is a short identifier that identifies a forwarding equivalence class.
E. A maximum of two labels can be imposed on an MPLS packet.
问题 #8
R1 and R2 cannot establish an EIGRP adjacency. Which action establishes EIGRP adjacency? A.Remove the current autonomous system number on one of the routers and change to a different value. B.Add the passive-interface command to the R1 configuration so that it matches the R2 configuration. C.Remove the passive-interface command from the R2 configuration so that it matches the R1 configuration. D.Add the no auto-summary command to the R2 configuration so that it matches the R1 configuration.
R1 and R2 cannot establish an EIGRP adjacency. Which action establishes EIGRP adjacency? A.Remove the current autonomous system number on one of the routers and change to a different value. B.Add the passive-interface command to the R1 configuration so that it matches the R2 configuration. C.Remove the passive-interface command from the R2 configuration so that it matches the R1 configuration. D.Add the no auto-summary command to the R2 configuration so that it matches the R1 configuration.
问题 #9
Refer to the exhibits. To provide reachability to network 10.1.1.0/24 from R5, the network administrator redistributes EIGRP into OSPF on R3 but notices that R4 is now taking a suboptimal path through R5 to reach 10.1.1.0/24 network. Which action fixes the issue while keeping the reachability from R5 to 10.1.1.0/24 network?
A. Change the administrative distance of the external EIGRP to 90.
B. Apply the outbound distribution list on R5 toward R4 in OSPF. C.Change the administrative distance of OSPF to 200 on R5. D.Redistribute OSPF into EIGRP on R4.
问题 #10
What are two functions of MPLS Layer 3 VPNs? (Choose two.)
A. It is used for transparent point-to-multipoint connectivity between Ethernet links/sites.
B. A packet with node segment ID is forwarded along with shortest path to destination. C.Customer traffic is encapsulated in a VPN label when it is forwarded in MPLS network. D.BGP is used for signaling customer VPNv4 routes between PE nodes.
E. LDP and BGP can be used for Pseudowire signaling.
问题 #11
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?
A. router ospf 1 redistribute static subnets
B. router ospf 1 network 0.0.0.0 0.0.0.0 area 0 C.router ospf 1 redistribute connected 0.0.0.0 D.router ospf 1 default-information originate
问题 #12
An engineer is monitoring reachability of the configured default routes to ISP1 and ISP2. The default route from ISP1 is preferred if available. How is this issue resolved?
A. Use the icmp-echo command to track both default routes.
B. Use the same AD for both default routes. C.Start IP SLA by matching numbers for track and ip sla commands. D.Start IP SLA by defining frequency and scheduling it.
问题 #13
An engineer configured two routers connected to two different service providers using BGP with default attributes. One of the links is presenting high delay, which causes slowness in the network. Which BGP attribute must the engineer configure to avoid using the high-delay ISP link if the second ISP link is up? A.AS-PATH B.WEIGHT C.MED D.LOCAL_PREF
An engineer configured two routers connected to two different service providers using BGP with default attributes. One of the links is presenting high delay, which causes slowness in the network. Which BGP attribute must the engineer configure to avoid using the high-delay ISP link if the second ISP link is up? A.AS-PATH B.WEIGHT C.MED D.LOCAL_PREF
问题 #14
The network administrator configured the branch router for IPv6 on the E 0/0 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?
A. Disable OSPF for IPv4 using the no ospfv3 4 area 0 ipv4 command under the E 0/0 interface.
B. Enable the IPv4 address family under the router ospfv3 4 process by using the address-family ipv4 unicast command. C.Disable IPv6 on the E 0/0 interface using the no ipv6 enable command. D.Enable the IPv4 address family under the E 0/0 interface by using the address-family ipv4 unicast command.
问题 #15
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?
A. Configure all devices for SNMPv3 informs with auth.
B. Configure all devices for SNMPv3 informs with priv. C.Configure all devices for SNMPv3 traps with auth. D.Configure all devices for SNMPv3 traps with priv.
问题 #16
In which two ways does the IPv6 First-Hop Security Binding Table operate? (Choose two.)
A. by IPv6 HSRP to make sure neighbors are authenticated before being used as gateways
B. by various IPv6 guard features to validate the data link layer address C.by the recovery mechanism to recover the binding table in the event of a device reboot D.by IPv6 routing protocols to securely build neighborships without the need of authentication
E. by storing hashed keys for IPsec tunnels for the built-in IPsec features
问题 #17
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?
A. Configure to match the OSPF interface network types on both routers.
B. Configure to match the OSPF interface speed and duplex settings on both routers. C.Configure to match the OSPF interface MTU settings on both routers. D.Configure to match the OSPF interface unique IP address and subnet mask on both routers.
问题 #18
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.)
A. Packets are forwarded using normal route lookup.
B. Packets are forwarded to the default gateway. C.Packets are dropped by the access list. D.Packets are evaluated by sequence 10.
E. Packets are not evaluated by sequence 10.
问题 #19
The OSPF neighbor relationship is not coming up. What must be configured to restore OSPF neighbor adjacency?
A. matching hello timers
B. OSPF on the remote router C.use router ID D.matching mtu values
问题 #20
What are two purposes of using IPv4 and VPNv4 address-family configurations in a Layer 3 MPLS VPN? (Choose two.)
A. RD is prepended to the IPv4 route to make it unique.
B. The VPNv4 address consists of a 64-bit route distinguisher that is prepended to the IPv4 prefix. C.MP-BGP is used to allow overlapping IPv4 addresses between customers to advertise through the network. D.The IPv4 address is needed to tag the MPLS label.
E. The VPNv4 address is used to advertise the MPLS VPN label.
问题 #21
The engineer configured and connected Router2 to Router1. The link came up but could not establish a Telnet connection to Router1 IPv6 address of 2001:DB8::1. Which configuration allows Router2 to establish a Telnet connection to Router1?
A. ipv6 unicast-routing
B. permit ICMPv6 on access list INGRESS for Router2 to obtain IPv6 address C.permit ip any any on access list EGRESS2 on Router1 D.IPv6 address on GigabitEthernet0/0
问题 #22
Which protocol does MPLS use to support traffic engineering?
A. Tag Distribution Protocol
B. Resource Reservation Protocol C.Label Distribution Protocol D.Border Gateway Protocol
问题 #23
A user cannot SSH to the router. What action must be taken to resolve this issue?
A. Configure transport input ssh
B. Configure transport output ssh C.Configure ip ssh version 2 D.Configure ip ssh source-interface loopback0
问题 #24
An engineer configured policy-based routing for a destination IP address that does not exist in the routing table. How is the packet treated through the policy for configuring the set ip default next-hop command?
A. Packets are not forwarded to the specific next hop.
B. Packets are forwarded based on the routing table. C.Packets are forwarded based on a static route. D.Packets are forwarded to the specific next hop.
问题 #25
What are two functions of LDP? (Choose two.)
A. It advertises labels per Forwarding Equivalence Class.
B. It uses Forwarding Equivalence Class. C.It is defined in RFC 3038 and 3039. D.It requires MPLS Traffic Engineering.
E. It must use Resource Reservation Protocol.
问题 #26
An IT staff member comes into the office during normal office hours and cannot access devices through SSH. Which action should be taken to resolve this issue?
A. Modify the access list to use the correct IP address.
B. Configure the correct time range. C.Modify the access list to correct the subnet mask. D.Configure the access list in the outbound direction.
问题 #27
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?
A. Configure the variance 4 command under the EIGRP process on R2.
B. Configure the bandwidth 2000 command under interface FastEthernet0/0 on R2. C.Configure the delay 1 command under interface FastEthernet0/0 on R2. D.Configure the variance 2 command under the EIGRP process on R2.
问题 #28
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: Head Office & Site A ip cef ip vrf abc rd 101:101 ! interface FastEthernet0/0 ip vrf forwarding abc ip address 172.16.16.X 255.255.255.252 ! router ospf 1 vrf abc log-adjacency-changes network 172.16.16.0 0.0.0.255 area 1 After finishing both site router configurations, none of the LSA 3, 4, 5, and 7 are installed at Site A router.
A. configure capability vrf-lite on Site A and its connected PE router under router ospf 1 vrf abc
B. configure capability vrf-lite on both PE routers connected to Head Office and Site A routers under router ospf 1 vrf abc C.configure capability vrf-lite on Head Office and its connected PE router under router ospf 1 abc D.configure capability vrf-lite on Head Office and Site A routers under router ospf 1 vrf abc
问题 #29
A network administrator configured mutual redistribution on R1 and R2 routers, which caused instability in the network. Which action resolves the issue?
A. Set a tag in the route map when redistributing EIGRP into OSPF on R1, and match the same tag on R2 to deny when redistributing OSPF into EIGRP.
B. Set a tag in the route map when redistributing EIGRP into OSPF on R1, and match the same tag on R2 to allow when redistributing OSPF into EIGRP. C.Apply a prefix list of EIGRP network routes in OSPF domain on R1 to propagate back into the EIGRP routing domain. D.Advertise summary routes of EIGRP to OSPF and deny specific EIGRP routes when redistributing into OSPF.
问题 #30
An engineer configured a DHCP server for Cisco IP phones to download its configuration from a TFTP server, but the IP phones failed to load the configuration. What must be configured to resolve the issue? A.BOOTP port 67
B. DHCP option 66 C.BOOTP port 68 D.DHCP option 69
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