300-410 Free Practice Test

- (Exam Topic 1)
Refer the exhibit.

Which action resolves intermittent connectivity observed with the SNMP trap packets?

1. A. Decrease the committed burst Size of the mgmt class map
2. B. Increase the CIR of the mgmt class map
3. C. Add a new class map to match TCP traffic
4. D. Add one new entry in the ACL 120 to permit the UDP port 161

Correct Answer: B

- (Exam Topic 1)
Refer to the exhibit.

The output of the trace route from R5 shows a loop in the network. Which configuration prevents this loop?
A)

B)

C)

D)

1. A. Option A
2. B. Option B
3. C. Option C
4. D. Option D

Correct Answer: A
The reason for the loop is that R2 is forwarding the packets destined to 10.1.1.1 to R4, instead of R1. This is because in the redistribute OSPF statement, BW metric has a higher value and delay has a value of 1. So, R2 chooses R4 over R1 for 10.1.1.0/24 subnet causing a loop. Now, R5 learns 10.1.1.0/24 from R3 and advertises the same route to R4, that R4 redistributes back in EIGRP. If R3 sets a tag of 1 while redistributing EIGRP in OSPF, and R4 denies all the OSPF routes with tag 1 while redistributing, it will not advertise 10.1.1.0/24 back into EIGRP. Hence, the loop will be broken.

- (Exam Topic 3)

Refer to the exhibit. An engineer is investigating an OSPF issue reported by the Cisco DNA Assurance Center. Which action resolves the issue?

1. A. One of the neighbor links is down Bring the interface up by running shut and no shut
2. B. One of the interfaces is using the wrong MTU Match interface MTU on both links
3. C. An ACL entry blocking multicast on the interfaces Allow multicast through the interface ACL
4. D. One of the interfaces is using the wrong authentication Match interface authentication on both links

Correct Answer: B

- (Exam Topic 1)
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?

1. A. show policy-map control-plane
2. B. show policy-map
3. C. show interface | inc drop
4. D. show ip route

Correct Answer: A

- (Exam Topic 3)
The network administrator configured R1 for Control Plane Policing so that the inbound Telnet traffic is policed to 100 kbps. This policy must not apply to traffic coming in from 10.1.1.1/32 and 172.16.1.1/32. The administrator has configured this:

The network administrator is not getting the desired results. Which set of configurations resolves this issue?

1. A. control-planeno service-policy input PM-CoPP!interface Ethernet 0/0service-policy input PM-CoPP
2. B. control-planeno service-policy input PM-CoPPservice-policy input PM-CoPP
3. C. no access-list 101access-list 101 deny tcp host 10,1,1.1 any eq 23access-list 101 deny tcp host 172,16.1.1 any eq 23 access-list 101 permit ip any any
4. D. no access-list 101access-list 101 deny tcp host 10,1.1.1 any eq 23access-list 101 deny tcp host 172.16.1.1 any eq 23 access-list 101 permit ip any any!interface E0/0service-policy input PM-CoPP

Correct Answer: C
Packets that match a deny rule are excluded from that class and cascade to the next class (if one exists) for classification. Therefore if we don’t want to CoPP traffic from 10.1.1.1/32 and 172.16.1.1/32, we must “deny” them in the ACL.