300-410 Route Redistribution — All Questions With Answers

A network engineer is troubleshooting a route redistribution issue between OSPF and EIGRP. Routers R1 (OSPF) and R2 (EIGRP) are redistributing routes into each other. The engineer notices that some OSPF external routes are not appearing in the EIGRP topology table on R2, although the redistribution is configured. The show ip eigrp topology command on R2 does not list the missing prefixes. What is the most likely cause?

Question 2mediummultiple choice

A network engineer is troubleshooting a route redistribution issue between EIGRP and OSPF. Routers R1 (EIGRP) and R2 (OSPF) are redistributing routes. The engineer notices that some EIGRP external routes (redistributed into EIGRP from another protocol) are not appearing in the OSPF database on R2. The show ip ospf database external command on R2 does not list these prefixes. What is the most likely cause?

Question 3hardmultiple choice

A network engineer is troubleshooting a route redistribution issue between two OSPF processes. Router R1 runs OSPF process 1 and OSPF process 2, and redistributes routes between them. The engineer notices that routes from OSPF process 1 are not appearing in the OSPF database of process 2, even though the redistribute command is configured. The show ip ospf database command on R1 for process 2 shows no external routes. What is the most likely cause?

Question 4mediummultiple choice

A network engineer is troubleshooting a route redistribution issue between RIP and OSPF. Router R1 runs both RIP and OSPF, and redistributes RIP routes into OSPF. The engineer notices that RIP routes are not appearing in the OSPF database on neighboring routers. The show ip ospf database external command on a neighbor shows no external routes from R1. The redistribute rip command is configured under OSPF on R1. What is the most likely cause?

Question 5hardmultiple choice

A network engineer is troubleshooting a route redistribution issue between EIGRP and BGP. Router R1 runs both EIGRP and BGP, and redistributes EIGRP routes into BGP. The engineer notices that some EIGRP routes are not appearing in the BGP table on R1. The show ip bgp command does not list these prefixes. The redistribute eigrp command is configured under BGP. What is the most likely cause?

Question 6hardmultiple choice

A network engineer is troubleshooting a route redistribution issue between OSPF and BGP. Router R1 runs both OSPF and BGP, and redistributes OSPF routes into BGP. The engineer notices that OSPF external routes are not appearing in the BGP table on R1. The show ip bgp command does not list these prefixes. The redistribute ospf 1 match external command is configured under BGP. What is the most likely cause?

Question 7mediummultiple choice

A network engineer is troubleshooting a route redistribution issue between EIGRP and OSPF. Routers R1 (EIGRP) and R2 (OSPF) are redistributing routes. The engineer notices that some EIGRP routes are appearing in the OSPF database on R2, but traffic to those destinations is not being forwarded correctly. The show ip route command on R2 shows the redistributed routes with a next-hop of 0.0.0.0. What is the most likely cause?

Question 8hardmultiple choice

A network engineer is troubleshooting a route redistribution issue between OSPF and EIGRP. Routers R1 (OSPF) and R2 (EIGRP) are redistributing routes. The engineer notices that some OSPF routes are appearing in the EIGRP topology table on R2, but traffic to those destinations is being dropped. The show ip route command on R2 shows the redistributed routes with a next-hop of the R1 interface, but the route is not installed in the routing table. What is the most likely cause?

Question 9mediummultiple choice

A network engineer is troubleshooting a route redistribution issue between two EIGRP processes. Router R1 runs EIGRP AS 100 and EIGRP AS 200, and redistributes routes between them. The engineer notices that routes from EIGRP AS 100 are not appearing in the EIGRP topology table of AS 200 on R1. The redistribute eigrp 100 command is configured under EIGRP AS 200. What is the most likely cause?

Question 10mediummultiple choice

A network engineer runs the following command on Router R1:

R1# show ip eigrp topology 10.1.1.0/24

IP-EIGRP (AS 100): Topology entry for 10.1.1.0/24 State: Passive, Originating reply status: 0 Routing Descriptor Blocks:

0.0.0.0 (Null0), from 0.0.0.0, Send flag: 0x0

Composite metric is (2560000000/0), Route is Internal Vector metric: Minimum bandwidth is 100000 Kbit Total delay is 100 microseconds Reliability is 255/255 Load is 1/255 Minimum MTU is 1500 Hop count is 0

10.2.2.2 (GigabitEthernet0/1), from 10.2.2.2, Send flag: 0x0

Composite metric is (2688000000/2560000000), Route is Internal Vector metric: Minimum bandwidth is 100000 Kbit Total delay is 200 microseconds Reliability is 255/255 Load is 1/255 Minimum MTU is 1500 Hop count is 1

Based on this output, what is the problem?

Question 11mediummultiple choice

A network engineer runs the following command on Router R1:

R1# show ip ospf database external 10.1.1.0

OSPF Router with ID (1.1.1.1) (Process ID 1)

Type-5 AS External Link States (Area 0)

LS age: 120 Options: (No TOS-capability, DC) LS Type: AS External Link Link State ID: 10.1.1.0 (External Network Number) Advertising Router: 2.2.2.2 LS Seq Number: 80000001 Checksum: 0x1234 Length: 36 Network Mask: /24 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 20 Forward Address: 0.0.0.0 External Route Tag: 100

Based on this output, which statement is correct?

Question 12mediummultiple choice

A network engineer runs the following command on Router R1:

R1# show ip bgp 10.1.1.0/24

BGP routing table entry for 10.1.1.0/24, version 10 Paths: (1 available, best #1, table default) Advertised to update-groups: 1 Refresh Epoch 1 Local

10.2.2.2 from 10.2.2.2 (2.2.2.2)

Origin IGP, metric 0, localpref 100, valid, external, best rx pathid: 0, tx pathid: 0x0 Community: 100:200

Based on this output, what is the problem?

Question 13hardmultiple choice

A network engineer runs the following command on Router R1:

R1# show route-map REDISTRIBUTE

route-map REDISTRIBUTE, permit, sequence 10 Match clauses:

ip address prefix-list EIGRP_ROUTES

Set clauses: metric 100 metric-type type-1 tag 200 Policy routing matches: 0 packets, 0 bytes

route-map REDISTRIBUTE, deny, sequence 20 Match clauses:

ip address prefix-list DENY_ALL

Set clauses: Policy routing matches: 0 packets, 0 bytes

Based on this output, what is the problem?

Question 14mediummultiple choice

A network engineer runs the following command on Router R1:

R1# show ip route 10.1.1.0

Routing entry for 10.1.1.0/24 Known via "eigrp 100", distance 170, metric 2560000 Redistributing via eigrp 100 Advertised by eigrp 100 (self originated) Last update from 10.2.2.2 on GigabitEthernet0/1, 00:00:10 ago Routing Descriptor Blocks:

* 10.2.2.2, from 10.2.2.2, 00:00:10 ago, via GigabitEthernet0/1

Route metric is 2560000, traffic share count is 1 Total delay is 100 microseconds, minimum bandwidth is 100000 Kbit Reliability 255/255, minimum MTU 1500 Loading 1/255, Hops 1

Based on this output, what is the problem?

Question 15mediummultiple choice

A network engineer runs the following command on Router R1:

R1# show ip ospf interface GigabitEthernet0/1

GigabitEthernet0/1 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0 Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 1.1.1.1, Interface address 10.1.1.1 Backup Designated router (ID) 2.2.2.2, Interface address 10.1.1.2 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:03 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 1/1, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 25 Last flood scan time is 0 msec, maximum is 4 msec

Neighbor Count is 1, Adjacent neighbor count is 1

Adjacent with neighbor 2.2.2.2 (Backup Designated Router) Suppress hello for 0 neighbor(s)

Based on this output, what is the problem?

Question 16hardmultiple choice

A network engineer runs the following command on Router R1:

R1# show ip bgp neighbors 10.2.2.2 advertised-routes

BGP table version is 10, local router ID is 1.1.1.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter, x best-external, a additional-path, c RIB-compressed, Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path *> 10.1.1.0/24 0.0.0.0 0 32768 i *> 10.2.2.0/24 0.0.0.0 0 32768 i

Total number of prefixes 2

Based on this output, what is the problem?

Question 17mediummultiple choice

A network engineer runs the following command on Router R1:

R1# show ip eigrp interfaces detail GigabitEthernet0/1

IP-EIGRP interfaces for process 100

Xmit Queue Mean Pacing Time Multicast Pending

Interface        Peers  Un/Reliable  SRTT   Un/Reliable   Flow Timer   Routes

Gi0/1 1 0/0 10 0/10 50 0 Hello interval is 5 sec Next xmit serial <none> Un/reliable mcasts: 0/0 Un/reliable ucasts: 0/0 Mcast exceptions: 0 CR packets: 0 ACKs suppressed: 0 Retransmissions: 0 Out of sequence: 0 Authentication mode: none Redistribution: redistributed

Based on this output, what is the problem?

Question 18mediummultiple choice

A network engineer runs the following command on Router R1:

R1# show ip route 192.168.1.0

Routing entry for 192.168.1.0/24 Known via "ospf 1", distance 110, metric 20, type extern 2, forward metric 100 Redistributing via ospf 1 Last update from 10.1.1.2 on GigabitEthernet0/1, 00:00:05 ago Routing Descriptor Blocks:

* 10.1.1.2, from 10.1.1.2, 00:00:05 ago, via GigabitEthernet0/1

Route metric is 20, traffic share count is 1

Based on this output, what is the problem?

Question 19mediummultiple choice

Consider the following partial configuration on Router R1:

router eigrp 100

redistribute ospf 1 metric 10000 100 255 1 1500

router ospf 1

redistribute eigrp 100 subnets

Which statement about this configuration is true?

Question 20mediummultiple choice

Given the following configuration on Router R2:

router eigrp 200

redistribute ospf 1 metric 10000 100 255 1 1500 default-metric 10000 100 255 1 1500

What is the effect of having both the 'metric' keyword in the redistribute command and the 'default-metric' command?

Question 21mediummultiple choice

Examine this partial configuration on Router R3:

router ospf 1

redistribute rip subnets metric-type 1 metric 50

What is the effect of the 'metric-type 1' keyword?

Question 22hardmultiple choice

Consider the following configuration on Router R4:

router eigrp 100

redistribute ospf 1 metric 10000 100 255 1 1500

router ospf 1

redistribute eigrp 100 metric 20 metric-type 1 subnets

What is a potential issue with this configuration?

Question 23mediummultiple choice

Given this configuration on Router R5:

route-map OSPF-to-EIGRP permit 10 match ip address prefix-list EIGRP-ONLY set metric 10000 100 255 1 1500 !

router eigrp 100

redistribute ospf 1 route-map OSPF-to-EIGRP

What is the purpose of the route-map in this configuration?

Question 24hardmultiple choice

Examine this configuration on Router R6:

router ospf 1

redistribute eigrp 100 subnets default-information originate always

What is a likely problem with this configuration?

Question 25easymultiple choice

When redistributing routes from EIGRP into OSPF, what is the default OSPF metric assigned to redistributed routes if no metric is specified?

Question 26mediummultiple choice

In EIGRP, which of the following K values is disabled by default, meaning it is not used in the metric calculation?

Question 27mediummultiple choice

When redistributing routes between OSPF and EIGRP, which of the following is a recommended best practice to prevent routing loops?

Question 28mediummulti select

Which TWO statements about route redistribution between EIGRP and OSPF are true? (Choose TWO.)

Question 29hardmulti select

Which THREE symptoms indicate a problem with route redistribution causing suboptimal routing or routing loops? (Choose THREE.)

Question 30mediummulti select

Which TWO configuration steps are required to successfully redistribute OSPF routes into EIGRP on a Cisco router? (Choose TWO.)

Question 31easymulti select

Which TWO commands would a network engineer use to verify the results of route redistribution from OSPF into EIGRP? (Choose TWO.)

Question 32hardmulti select

Which THREE statements about route redistribution and administrative distance are true? (Choose THREE.)

Question 33hardmultiple choice

A large enterprise network is experiencing intermittent reachability to a subnet 10.1.1.0/24 from the rest of the network. Router R1 has the following relevant configuration:

router eigrp 100

redistribute ospf 1 metric 10000 100 255 1 1500 !

router ospf 1

redistribute eigrp 100 subnets summary-address 10.0.0.0 255.255.0.0 !

interface GigabitEthernet0/0
 ip summary-address eigrp 100 10.0.0.0 255.255.0.0 5

Router R2 shows:
R2# show ip route 10.1.1.0

Routing entry for 10.0.0.0/16, supernet Known via "eigrp 100", distance 90, metric 128256 Redistributing via eigrp 100 Last update from 10.10.10.1 on GigabitEthernet0/1

What is the root cause?

Question 34hardmultiple choice

A network engineer notices that after redistributing EIGRP into OSPF, a routing loop occurs between two routers. Router R1 config:

router ospf 1

redistribute eigrp 100 subnets !

router eigrp 100

redistribute ospf 1 metric 10000 100 255 1 1500

R1# show ip route 192.168.1.0

Routing entry for 192.168.1.0/24 Known via "eigrp 100", distance 90, metric 128256 Redistributing via eigrp 100 Last update from 10.1.1.2 on GigabitEthernet0/0

R2# show ip route 192.168.1.0

Routing entry for 192.168.1.0/24 Known via "ospf 1", distance 110, metric 20 Redistributing via ospf 1 Last update from 10.1.1.1 on GigabitEthernet0/0

What is the root cause?

Question 35hardmultiple choice

An enterprise uses BGP to exchange routes with a service provider. After redistributing OSPF into BGP, some prefixes are missing. Router R1 config:

router bgp 65001

redistribute ospf 1 match internal external 1 external 2 !

router ospf 1

redistribute bgp 65001 subnets

R1# show ip bgp 10.10.10.0

% Network not in table

R1# show ip ospf database external 10.10.10.0

Type-5 AS External Link States LS age: 360 Options: (No TOS-capability, DC) LS Type: AS External Link Link State ID: 10.10.10.0 (External Network Number) Advertising Router: 192.168.1.2 LS Seq Number: 80000001 Checksum: 0x1234 Length: 36 Network Mask: /24 Metric Type: 2 (Larger than any link state path) Metric: 20 Forward Address: 0.0.0.0 External Route Tag: 0

What is the root cause?

Question 36hardmultiple choice

A network engineer configures redistribution between OSPF and EIGRP on a multi-access link. After configuration, OSPF neighbors keep flapping. Router R1 config:

interface GigabitEthernet0/0
 ip ospf network broadcast
 ip ospf hello-interval 10

router ospf 1

redistribute eigrp 100 subnets !

router eigrp 100

redistribute ospf 1 metric 10000 100 255 1 1500

R1# show ip ospf neighbor
Neighbor ID     Pri   State           Dead Time   Address         Interface
192.168.1.2      1   FULL/DR        00:00:35     10.1.1.2        GigabitEthernet0/0
192.168.1.3      1   2WAY/DROTHER   00:00:31     10.1.1.3        GigabitEthernet0/0

What is the root cause?

Question 37hardmultiple choice

After redistributing OSPF into EIGRP, an EIGRP router becomes stuck-in-active (SIA) for certain routes. Router R1 config:

router eigrp 100

redistribute ospf 1 metric 10000 100 255 1 1500 !

router ospf 1

redistribute eigrp 100 subnets

R1# show ip eigrp topology 10.0.0.0/8

IP-EIGRP (AS 100): Topology entry for 10.0.0.0/8 State: Active, 0:01:15, Reply count: 0 Originating router: 10.1.1.1 Last sent query: 10.1.1.2

What is the root cause?

Question 38hardmultiple choice

A DMVPN network uses EIGRP as the routing protocol. After redistributing a static route into EIGRP on the hub, spoke-to-spoke tunnels fail to form. Hub configuration:

router eigrp 100

redistribute static metric 10000 100 255 1 1500 !

ip route 10.0.0.0 255.0.0.0 Null0

Spoke1# show dmvpn
Interface: Tunnel0, IPv4 NHRP Details

Type:Spoke, NHRP Peers:2,

# Ent  Peer NBMA Addr Peer Tunnel Addr State  UpDn Tm Attrb

1 192.168.1.1 10.1.1.1 UP 00:01:00 D 2 192.168.1.2 10.1.1.2 UP 00:00:30 D

What is the root cause?

Question 39hardmultiple choice

An MPLS network uses OSPF as the IGP. After redistributing BGP routes into OSPF, some LDP neighbors fail to establish. Router R1 config:

router ospf 1

redistribute bgp 65001 subnets !

router bgp 65001

redistribute ospf 1

R1# show mpls ldp neighbor

Peer LDP Ident: 10.1.1.2:0, Local LDP Ident: 10.1.1.1:0 TCP connection: 10.1.1.2.646 - 10.1.1.1.646 State: Oper, Msg sent: 100, Msg rcvd: 80 Downstream on demand

R2# show mpls ldp neighbor

Peer LDP Ident: 10.1.1.1:0, Local LDP Ident: 10.1.1.2:0 TCP connection: 10.1.1.1.646 - 10.1.1.2.646 State: Oper, Msg sent: 80, Msg rcvd: 100

What is the root cause?

Question 40hardmultiple choice

A network administrator configures an ACL to filter routes during redistribution, but management traffic stops working. Router R1 config:

access-list 100 permit ip 10.0.0.0 0.255.255.255 any

router eigrp 100

redistribute ospf 1 route-map FILTER ! route-map FILTER permit 10 match ip address 100

R1# show ip route 10.1.1.1

Routing entry for 10.1.1.1/32 Known via "connected", distance 0, metric 0 Redistributing via eigrp 100

What is the root cause?

Question 41hardmultiple choice

A network engineer configures CoPP to protect the control plane, but after redistributing routes, some legitimate routing updates are dropped. Router R1 config: control-plane service-policy input COPP ! class-map match-all ROUTING match access-group name ROUTING ! policy-map COPP

class ROUTING

police 100000 15000 15000 conform-action transmit exceed-action drop !

access-list ROUTING permit tcp any any eq bgp
access-list ROUTING permit udp any any eq 520
access-list ROUTING permit ospf any any

R1# show policy-map control-plane input

Class-map: ROUTING (match-all) 100 packets, 10000 bytes 5 minute offered rate 0 bps drop rate 0 bps Match: access-group name ROUTING police: cir 100000 bps, bc 15000 bytes, be 15000 bytes conformed 90 packets, 9000 bytes; actions: transmit exceeded 10 packets, 1000 bytes; actions: drop

What is the root cause?

Question 42mediummultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# debug ip routing

And sees the following output:

*Mar  1 00:12:34.567: RT: add 192.168.10.0/24 via 10.1.1.2, ospf metric [110/20]
*Mar  1 00:12:34.568: RT: add 192.168.10.0/24 via 10.2.2.2, eigrp metric [90/156160]
*Mar  1 00:12:34.569: RT: better route for 192.168.10.0/24 via 10.1.1.2, ospf metric [110/20]
*Mar  1 00:12:34.570: RT: add 192.168.10.0/24 to rib via 10.1.1.2, ospf metric [110/20]

What does this output indicate?

Question 43mediummultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# debug eigrp packets

And sees the following output:

*Mar  1 00:15:22.123: EIGRP: Received UPDATE on Serial0/0/0 nbr 10.1.1.2
*Mar  1 00:15:22.124:   AS 100, Flags 0x1, Seq 45/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:15:22.125:   Ext: 192.168.10.0/255.255.255.0, metric 156160, tag 0
*Mar  1 00:15:22.126: EIGRP: Enqueueing UPDATE on Serial0/0/0 nbr 10.1.1.2 iidbQ un/rely 0/1 peerQ un/rely 0/0 serno 12-12
*Mar  1 00:15:22.127: EIGRP: Sending UPDATE on Serial0/0/0 nbr 10.1.1.2, retry 0, R=1
*Mar  1 00:15:22.128:   Ext: 10.2.2.0/255.255.255.0, metric 128256, tag 0

What does this output indicate?

Question 44hardmultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# show ip eigrp topology 192.168.10.0/24

And sees the following output:

IP-EIGRP (AS 100): Topology entry for 192.168.10.0/24 State: Passive, Originating, 1 successors, FD is 128256 Routing Descriptor Blocks:

0.0.0.0 (Null0), from 0.0.0.0, Send flag 0x0

Composite metric is (128256/0), Route is Internal Vector metric: Minimum bandwidth is 100000 Kbit Total delay is 5000 microseconds Reliability is 255/255 Load is 1/255 Minimum MTU is 1500 Hop count is 0

What does this output indicate?

Question 45easymultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# debug ip ospf adj

And sees the following output:

*Mar  1 00:20:11.456: OSPF: Rcv pkt from 10.1.1.2, Serial0/0/0 : Mismatch Authentication type. Input packet specified type 0, we use type 1
*Mar  1 00:20:11.457: OSPF: Rcv pkt from 10.1.1.2, Serial0/0/0 : Mismatch Authentication type. Input packet specified type 0, we use type 1

What does this output indicate?

Question 46mediummultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# show ip ospf database external

And sees the following output:

OSPF Router with ID (1.1.1.1) (Process ID 1)

Type-5 AS External Link States

LS age: 360 Options: (No TOS-capability, DC) LS Type: AS External Link Link State ID: 192.168.10.0 (External Network Number ) Advertising Router: 2.2.2.2 LS Seq Number: 80000001 Checksum: 0x1234 Length: 36 Network Mask: /24 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 20 Forward Address: 0.0.0.0 External Route Tag: 100

What does this output indicate?

Question 47mediummultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# debug ip bgp updates

And sees the following output:

*Mar  1 00:25:44.789: BGP(0): 10.1.1.2 UPDATE out about 192.168.10.0/24, NEXT_HOP 10.1.1.1, LOCAL_PREF 100, MED 0, origin i, path 65000 65001
*Mar  1 00:25:44.790: BGP(0): 10.1.1.2 UPDATE run, update sent
*Mar  1 00:25:44.791: BGP(0): 10.1.1.2 UPDATE in about 10.2.2.0/24, NEXT_HOP 10.1.1.2, LOCAL_PREF 100, MED 0, origin i, path 65002

What does this output indicate?

Question 48hardmultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# show bgp ipv4 unicast 192.168.10.0/24

And sees the following output:

BGP routing table entry for 192.168.10.0/24, version 2 Paths: (1 available, best #1, table default) Advertised to update-groups: 1 Refresh Epoch 1 Local

0.0.0.0 from 0.0.0.0 (1.1.1.1)

Origin incomplete, metric 0, localpref 100, weight 32768, valid, sourced, best rx pathid: 0, tx pathid: 0x0

What does this output indicate?

Question 49easymultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# show ip route summary

And sees the following output:

Route Source Networks Subnets Replicates Overhead Memory (bytes) connected 2 0 0 0 512 static 1 0 0 0 256 ospf 1 5 0 0 0 1280 eigrp 100 3 0 0 0 768 bgp 65000 2 0 0 0 512 internal 1 0 0 0 256 Total 14 0 0 0 3584

What does this output indicate?

Question 50hardmultiple choice

A network engineer runs the following command to troubleshoot a Route Redistribution issue:

R1# show ip bgp vpnv4 vrf CUSTOMER routes

And sees the following output:

Network Next Hop Metric LocPrf Weight Path Route Distinguisher: 100:1 (default for vrf CUSTOMER) *> 192.168.10.0/24 10.1.1.2 0 100 0 65001 i *> 192.168.20.0/24 10.1.1.2 0 100 0 65001 i

What does this output indicate?

Question 51mediummultiple choice

What is the default administrative distance for routes redistributed into EIGRP from another protocol?

Question 52easymultiple choice

When redistributing routes into OSPF, which OSPF metric value is assigned by default if none is specified?

Question 53mediummultiple choice

Which statement correctly describes the behavior of the 'default-information originate' command in OSPF?

Question 54easymultiple choice

What is the default seed metric used by Cisco IOS when redistributing routes into RIP?

Question 55hardmultiple choice

Which loop prevention mechanism is used by default when redistributing between two OSPF processes?

Question 56hardmultiple choice

What is the default metric value assigned to redistributed routes into IS-IS when no metric is specified?

Question 57mediummultiple choice

Which statement correctly describes the behavior of the 'subnets' keyword when redistributing into OSPF?

Question 58mediummultiple choice

What is the default administrative distance for routes redistributed into BGP from an IGP?

Question 59hardmultiple choice

When redistributing OSPF into EIGRP, which EIGRP metric components are used to calculate the default metric?

Question 60mediumdrag order

Drag and drop the steps to perform mutual redistribution between OSPF and EIGRP into the correct order, from first to last.

Question 61mediumdrag order

Drag and drop the steps to troubleshoot route redistribution adjacency or connectivity failures into the correct order, from first to last.

Question 62mediumdrag order

Read the full NAT/PAT explanation →

Drag and drop the steps to verify and validate route redistribution operational state into the correct order, from first to last.

Question 63hardmulti select

Which TWO statements correctly describe the behavior of the 'default-information originate' command in the context of route redistribution? (Choose TWO.)

Question 64hardmulti select

An engineer is troubleshooting a route redistribution issue between EIGRP and OSPF. Which TWO actions will prevent routing loops in a mutual redistribution scenario? (Choose TWO.)

Question 65hardmulti select

Which TWO statements are true regarding the use of route maps for route redistribution? (Choose TWO.)

Question 66hardmulti select

An engineer is redistributing OSPF routes into EIGRP. Which TWO commands can be used to verify that the redistribution is working correctly? (Choose TWO.)

Question 67hardmulti select

Which TWO statements about redistributing connected routes into a routing protocol are true? (Choose TWO.)

Question 68hardmultiple choice

An experienced network engineer configures mutual redistribution between OSPF and EIGRP on a router. Both protocols have routes to the same prefix, but after redistribution, a routing loop occurs. The engineer did not use route tagging. Which is the most likely explanation?

Question 69hardmultiple choice

A network engineer configures OSPF on two routers connected via Ethernet. The adjacency forms but remains stuck in EXSTART state. Both routers have identical OSPF configuration except for MTU. Which is the most likely explanation?

Question 70hardmultiple choice

An engineer configures EIGRP named mode on a router. A route is learned via EIGRP, but the router does not install it in the routing table. The show ip eigrp topology shows the route in passive state with a feasible distance. Which is the most likely explanation?

Question 71hardmultiple choice

Read the full VPN explanation →

An engineer configures BGP between two routers in the same AS. The iBGP session is established, but routes learned from the eBGP neighbor are not advertised to the iBGP peer. The 'show ip bgp' output shows the routes as valid but not best. Which is the most likely explanation?

Question 72hardmultiple choice

A network engineer configures DMVPN Phase 2 with NHRP. Spoke routers can communicate with the hub, but spoke-to-spoke traffic fails. The 'show dmvpn' on spokes shows the hub's NBMA address but not other spokes. Which is the most likely explanation?

Question 73hardmultiple choice

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An engineer configures IPsec site-to-site VPN between two routers. The tunnel establishes, but traffic does not pass. The 'show crypto ipsec sa' shows packets being encapsulated but no decapsulation. Which is the most likely explanation?

Question 74hardmultiple choice

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An engineer applies a Control Plane Policing (CoPP) policy to a router. After applying, OSPF adjacencies go down. The policy has a class that matches OSPF traffic with a police rate of 1000 pps. The 'show policy-map control-plane' shows no drops. Which is the most likely explanation?

Question 75hardmultiple choice

An engineer configures unicast Reverse Path Forwarding (uRPF) in strict mode on an interface facing the Internet. Legitimate traffic from a customer network is being dropped. The traffic has a source IP that belongs to the customer's prefix, which is reachable via a different interface on the router. Which is the most likely explanation?

Question 76hardmultiple choice