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Cisco 300-410 Bundle

Exam Code: 300-410

Exam Name Implementing Cisco Enterprise Advanced Routing and Services (ENARSI)

Certification Provider: Cisco

Corresponding Certification: CCNP Enterprise

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Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) (300-410) Practice Tests

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Cisco 300-410 Practice Test 16

Question 150

At the Hillcrest research lab, device administrators authenticate successfully and use permitted commands, but the security team cannot reconstruct who ran a sensitive configuration command. Which operational change most directly addresses the fault described?

  1. Apply DHCPv6 Guard on untrusted access ports, permitting only approved DHCPv6 server or relay sources.
  2. Correct the control-plane class match to identify OSPF protocol 89 and keep its intended policy limits.
  3. Adjust the CoPP classification and authorized BGP control traffic rate according to measured demand and attack protection needs.
  4. Enable and verify AAA command accounting with a reachable, trusted logging/accounting destination.

Explanation

Correct Answer

D:

The fault at the Hillcrest research lab has a specific cause. Authentication and authorization are active, but command-level accounting records are not being collected. Enable and verify AAA command accounting with a reachable, trusted logging/accounting destination. Confirm success against this result: The test command produces an attributable record with identity, action and time at the accounting service.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: A rogue DHCPv6 responder can influence hosts even when router advertisements are controlled separately. The stated evidence at the Hillcrest research lab instead concerns aaa accounting gaps.

B:

This could help where copp protocol classification error is the issue, but not for the evidence reported at the Hillcrest research lab. Authentication and authorization are active, but command-level accounting records are not being collected.

C:

That change targets copp control-plane bgp drops, not the reported aaa accounting gaps fault at the Hillcrest research lab. Authentication and authorization are active, but command-level accounting records are not being collected.

Question 151

At the Granite manufacturing plant, R-GRA-PE1 has SSH enabled, but a vulnerability scan finds that the VTY lines still accept unencrypted Telnet management sessions. Which operational change most directly addresses the fault described?

  1. Configure the intended trap receiver, notification types and reachability for event delivery.
  2. Restrict VTY input transport to SSH and preserve an authorized login authentication method.
  3. Update the authorized SNMP view so it includes the required interface-counter OID subtree.
  4. Tighten the community access restrictions and migrate to SNMPv3 when supported by the management design.

Explanation

Correct Answer

B:

The fault at the Granite manufacturing plant has a specific cause. VTY transport settings allow Telnet even though SSH is available. Restrict VTY input transport to SSH and preserve an authorized login authentication method. Confirm success against this result: SSH management succeeds and a Telnet connection attempt is rejected.

Incorrect Answers

A:

That change targets snmp polling versus trap delivery, not the reported vty ssh transport restriction fault at the Granite manufacturing plant. VTY transport settings allow Telnet even though SSH is available.

C:

This could help where snmpv3 view denies oid is the issue, but not for the evidence reported at the Granite manufacturing plant. VTY transport settings allow Telnet even though SSH is available.

D:

That change targets snmpv2c community and source acl, not the reported vty ssh transport restriction fault at the Granite manufacturing plant. VTY transport settings allow Telnet even though SSH is available.

Question 152

At the Elmfield engineering office, R-ELM-EDGE1 has SSH enabled, but a vulnerability scan finds that the VTY lines still accept unencrypted Telnet management sessions. Which operational change most directly addresses the fault described?

  1. Restrict VTY input transport to SSH and preserve an authorized login authentication method.
  2. Configure the intended trap receiver, notification types and reachability for event delivery.
  3. Use an authenticated SCP workflow and restrict access to the appropriate management accounts.
  4. Update the authorized SNMP view so it includes the required interface-counter OID subtree.

Explanation

Correct Answer

A:

Restrict VTY input transport to SSH and preserve an authorized login authentication method. That directly addresses the documented condition at the Elmfield engineering office: VTY transport settings allow Telnet even though SSH is available. Confirmation should show that SSH management succeeds and a Telnet connection attempt is rejected.

Incorrect Answers

B:

That change targets snmp polling versus trap delivery, not the reported vty ssh transport restriction fault at the Elmfield engineering office. VTY transport settings allow Telnet even though SSH is available.

C:

This is appropriate for a different routing or network-control issue: TFTP does not provide the confidentiality and authentication required for this sensitive transfer. The stated evidence at the Elmfield engineering office instead concerns vty ssh transport restriction.

D:

This could help where snmpv3 view denies oid is the issue, but not for the evidence reported at the Elmfield engineering office. VTY transport settings allow Telnet even though SSH is available.

Question 153

At the Oakbridge insurance office, R-OAK-EDGE1 has IP reachability from the management network but refuses to enable the SSH server after a reset removed its cryptographic key material. Which operational change most directly addresses the fault described?

  1. Tighten the community access restrictions and migrate to SNMPv3 when supported by the management design.
  2. Restore the required SSH server identity keys and configured secure authentication method.
  3. Enable an approved HTTPS management service and limit management access to trusted sources.
  4. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials.

Explanation

Correct Answer

B:

Restore the required SSH server identity keys and configured secure authentication method. That directly addresses the documented condition at the Oakbridge insurance office: The router lacks a valid SSH host-key configuration required to offer SSH service. Confirmation should show that the router accepts a secure SSH handshake and an authorized administrator can log in.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: A weakly restricted SNMPv2c community permits requests from unapproved source addresses. The stated evidence at the Oakbridge insurance office instead concerns ssh key and local authentication.

C:

That change targets https management instead of cleartext http, not the reported ssh key and local authentication fault at the Oakbridge insurance office. The router lacks a valid SSH host-key configuration required to offer SSH service.

D:

This is appropriate for a different routing or network-control issue: The TFTP transfer path is unavailable or disallowed; SSH authentication is unrelated to TFTP reachability. The stated evidence at the Oakbridge insurance office instead concerns ssh key and local authentication.

Question 154

At the Aspen agricultural office, R-ASP-WAN1 has IP reachability from the management network but refuses to enable the SSH server after a reset removed its cryptographic key material. Which operational change most directly addresses the fault described?

  1. Enable an approved HTTPS management service and limit management access to trusted sources.
  2. Use an authenticated SCP workflow and restrict access to the appropriate management accounts.
  3. Restore the required SSH server identity keys and configured secure authentication method.
  4. Configure the intended trap receiver, notification types and reachability for event delivery.

Explanation

Correct Answer

C:

Restore the required SSH server identity keys and configured secure authentication method. That directly addresses the documented condition at the Aspen agricultural office: The router lacks a valid SSH host-key configuration required to offer SSH service. Confirmation should show that the router accepts a secure SSH handshake and an authorized administrator can log in.

Incorrect Answers

A:

That change targets https management instead of cleartext http, not the reported ssh key and local authentication fault at the Aspen agricultural office. The router lacks a valid SSH host-key configuration required to offer SSH service.

B:

This is appropriate for a different routing or network-control issue: TFTP does not provide the confidentiality and authentication required for this sensitive transfer. The stated evidence at the Aspen agricultural office instead concerns ssh key and local authentication.

D:

That change targets snmp polling versus trap delivery, not the reported ssh key and local authentication fault at the Aspen agricultural office. The router lacks a valid SSH host-key configuration required to offer SSH service.

Question 155

At the Cedarbrook hospital, network staff access R-CDR-WAN1's web management UI over plaintext HTTP from a shared management segment. Which operational change most directly addresses the fault described?

  1. Configure the intended trap receiver, notification types and reachability for event delivery.
  2. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials.
  3. Tighten the community access restrictions and migrate to SNMPv3 when supported by the management design.
  4. Enable an approved HTTPS management service and limit management access to trusted sources.

Explanation

Correct Answer

D:

Enable an approved HTTPS management service and limit management access to trusted sources. That directly addresses the documented condition at the Cedarbrook hospital: The management interface transports credentials and session data without TLS protection. Confirmation should show that management traffic negotiates TLS and cleartext HTTP access is disabled or redirected as designed.

Incorrect Answers

A:

This could help where snmp polling versus trap delivery is the issue, but not for the evidence reported at the Cedarbrook hospital. The management interface transports credentials and session data without TLS protection.

B:

That change targets tftp reachability versus credentials, not the reported https management instead of cleartext http fault at the Cedarbrook hospital. The management interface transports credentials and session data without TLS protection.

C:

This is appropriate for a different routing or network-control issue: A weakly restricted SNMPv2c community permits requests from unapproved source addresses. The stated evidence at the Cedarbrook hospital instead concerns https management instead of cleartext http.

Question 156

At the Redwood medical campus, network staff access R-RED-EDGE1's web management UI over plaintext HTTP from a shared management segment. Which operational change most directly addresses the fault described?

  1. Restrict VTY input transport to SSH and preserve an authorized login authentication method.
  2. Tighten the community access restrictions and migrate to SNMPv3 when supported by the management design.
  3. Enable an approved HTTPS management service and limit management access to trusted sources.
  4. Use an authenticated SCP workflow and restrict access to the appropriate management accounts.

Explanation

Correct Answer

C:

At the Redwood medical campus, the evidence points to a concrete mechanism rather than a generic outage. The management interface transports credentials and session data without TLS protection. Enable an approved HTTPS management service and limit management access to trusted sources. Confirm it by checking that management traffic negotiates TLS and cleartext HTTP access is disabled or redirected as designed.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: VTY transport settings allow Telnet even though SSH is available. The stated evidence at the Redwood medical campus instead concerns https management instead of cleartext http.

B:

This could help where snmpv2c community and source acl is the issue, but not for the evidence reported at the Redwood medical campus. The management interface transports credentials and session data without TLS protection.

D:

This is appropriate for a different routing or network-control issue: TFTP does not provide the confidentiality and authentication required for this sensitive transfer. The stated evidence at the Redwood medical campus instead concerns https management instead of cleartext http.

Question 157

At the Clearwater library district, engineers use TFTP across a routed management network to retrieve sensitive R-CLW-EDGE1 configurations even though secure file transport is required. Which operational change most directly addresses the fault described?

  1. Configure the intended trap receiver, notification types and reachability for event delivery.
  2. Use an authenticated SCP workflow and restrict access to the appropriate management accounts.
  3. Restore the required SSH server identity keys and configured secure authentication method.
  4. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials.

Explanation

Correct Answer

B:

The fault at the Clearwater library district has a specific cause. TFTP does not provide the confidentiality and authentication required for this sensitive transfer. Use an authenticated SCP workflow and restrict access to the appropriate management accounts. Confirm success against this result: The configuration copy succeeds over the authorized encrypted management transport.

Incorrect Answers

A:

That change targets snmp polling versus trap delivery, not the reported scp for secure configuration copy fault at the Clearwater library district. TFTP does not provide the confidentiality and authentication required for this sensitive transfer.

C:

This could help where ssh key and local authentication is the issue, but not for the evidence reported at the Clearwater library district. TFTP does not provide the confidentiality and authentication required for this sensitive transfer.

D:

That change targets tftp reachability versus credentials, not the reported scp for secure configuration copy fault at the Clearwater library district. TFTP does not provide the confidentiality and authentication required for this sensitive transfer.

Question 158

At the Bayview university campus, engineers use TFTP across a routed management network to retrieve sensitive R-BAY-DIST1 configurations even though secure file transport is required. Which operational change most directly addresses the fault described?

  1. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials.
  2. Use an authenticated SCP workflow and restrict access to the appropriate management accounts.
  3. Configure the intended trap receiver, notification types and reachability for event delivery.
  4. Align the SNMPv3 user, authentication algorithm, privacy configuration and required security level.

Explanation

Correct Answer

B:

At the Bayview university campus, the evidence points to a concrete mechanism rather than a generic outage. TFTP does not provide the confidentiality and authentication required for this sensitive transfer. Use an authenticated SCP workflow and restrict access to the appropriate management accounts. Confirm it by checking that the configuration copy succeeds over the authorized encrypted management transport.

Incorrect Answers

A:

This could help where tftp reachability versus credentials is the issue, but not for the evidence reported at the Bayview university campus. TFTP does not provide the confidentiality and authentication required for this sensitive transfer.

C:

This is appropriate for a different routing or network-control issue: SNMP polling works but asynchronous notification generation or destination settings are missing. The stated evidence at the Bayview university campus instead concerns scp for secure configuration copy.

D:

This could help where snmpv3 security level mismatch is the issue, but not for the evidence reported at the Bayview university campus. TFTP does not provide the confidentiality and authentication required for this sensitive transfer.

Question 159

At the Foothill municipal site, R-FOO-DIST1 cannot complete a TFTP image retrieval; the team keeps changing SSH passwords even though the TFTP server's UDP reachability is blocked. Which operational change most directly addresses the fault described?

  1. Configure the intended trap receiver, notification types and reachability for event delivery.
  2. Restore the required SSH server identity keys and configured secure authentication method.
  3. Enable an approved HTTPS management service and limit management access to trusted sources.
  4. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials.

Explanation

Correct Answer

D:

The fault at the Foothill municipal site has a specific cause. The TFTP transfer path is unavailable or disallowed; SSH authentication is unrelated to TFTP reachability. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials. Confirm success against this result: The permitted TFTP read completes from the expected server after the network path is corrected.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: SNMP polling works but asynchronous notification generation or destination settings are missing. The stated evidence at the Foothill municipal site instead concerns tftp reachability versus credentials.

B:

This could help where ssh key and local authentication is the issue, but not for the evidence reported at the Foothill municipal site. The TFTP transfer path is unavailable or disallowed; SSH authentication is unrelated to TFTP reachability.

C:

That change targets https management instead of cleartext http, not the reported tftp reachability versus credentials fault at the Foothill municipal site. The TFTP transfer path is unavailable or disallowed; SSH authentication is unrelated to TFTP reachability.

Question 160

At the Highland government office, R-HIG-RT1 cannot complete a TFTP image retrieval; the team keeps changing SSH passwords even though the TFTP server's UDP reachability is blocked. Which operational change most directly addresses the fault described?

  1. Update the authorized SNMP view so it includes the required interface-counter OID subtree.
  2. Enable an approved HTTPS management service and limit management access to trusted sources.
  3. Configure the intended trap receiver, notification types and reachability for event delivery.
  4. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials.

Explanation

Correct Answer

D:

At the Highland government office, the evidence points to a concrete mechanism rather than a generic outage. The TFTP transfer path is unavailable or disallowed; SSH authentication is unrelated to TFTP reachability. Check TFTP UDP reachability, server path permissions and the correct server address rather than SSH credentials. Confirm it by checking that the permitted TFTP read completes from the expected server after the network path is corrected.

Incorrect Answers

A:

That change targets snmpv3 view denies oid, not the reported tftp reachability versus credentials fault at the Highland government office. The TFTP transfer path is unavailable or disallowed; SSH authentication is unrelated to TFTP reachability.

B:

This is appropriate for a different routing or network-control issue: The management interface transports credentials and session data without TLS protection. The stated evidence at the Highland government office instead concerns tftp reachability versus credentials.

C:

This could help where snmp polling versus trap delivery is the issue, but not for the evidence reported at the Highland government office. The TFTP transfer path is unavailable or disallowed; SSH authentication is unrelated to TFTP reachability.