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Exam Code: N10-009
Exam Name: CompTIA Network+
Certification Provider: CompTIA
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CompTIA Network+ N10-009 Practice Test 48

Question 470

A software upgrade must be applied to 200 switches with differing models. Which diagnostic or verification check MOST directly evaluates the expected network behavior in this situation?

  1. Verify the pilot model boots but extrapolate to different unsupported hardware SKUs
  2. Pilot upgrade and audit supported firmware per hardware SKU
  3. Check the upgrade package checksum alone without device compatibility testing
  4. Report deployment task completion without auditing version and errors for each platform family

Explanation

Correct Answer

B:

One firmware image does not necessarily fit heterogeneous devices. The result of the remedy is checked directly: Pilot upgrade and audit supported firmware per hardware SKU.

Incorrect Answers

A:

Verify the pilot model boots but extrapolate to different unsupported hardware SKUs. One firmware image does not necessarily fit heterogeneous devices. The appropriate acceptance test is: Pilot upgrade and audit supported firmware per hardware SKU.

C:

Check the upgrade package checksum alone without device compatibility testing. One firmware image does not necessarily fit heterogeneous devices. The appropriate acceptance test is: Pilot upgrade and audit supported firmware per hardware SKU.

D:

Report deployment task completion without auditing version and errors for each platform family. One firmware image does not necessarily fit heterogeneous devices. The appropriate acceptance test is: Pilot upgrade and audit supported firmware per hardware SKU.

Question 471

An inherited network project has no change-to-asset accountability trail. Which response MOST directly addresses the stated network problem or requirement?

  1. Keep a route change in the running config but delete its associated asset and approval record
  2. Record only the technician's initials without a traceable change request or version diff
  3. Link change requests, device inventory and configuration revisions
  4. Rely on verbal approvals for a new critical route and omit configuration history

Explanation

Correct Answer

C:

Auditability depends on joining documented intent to deployed state. A direct way to confirm the outcome is to trace a sampled route change to its owner and resulting state.

Incorrect Answers

A:

Keep a route change in the running config but delete its associated asset and approval record. Auditability depends on joining documented intent to deployed state. This does not implement the needed approach: link change requests, device inventory and configuration revisions.

B:

Record only the technician's initials without a traceable change request or version diff. Auditability depends on joining documented intent to deployed state. This does not implement the needed approach: link change requests, device inventory and configuration revisions.

D:

Rely on verbal approvals for a new critical route and omit configuration history. Auditability depends on joining documented intent to deployed state. This does not implement the needed approach: link change requests, device inventory and configuration revisions.

Question 472

An inherited network project has no change-to-asset accountability trail. Which diagnostic or verification check MOST directly evaluates the expected network behavior in this situation?

  1. Confirm the destination responds but never trace the route to its approved change owner
  2. Read the asset inventory alone while its applied config revision is unlinked
  3. Inspect a Git commit hash without checking the actual device that received the corresponding change
  4. Trace a sampled route change to its owner and resulting state

Explanation

Correct Answer

D:

Auditability depends on joining documented intent to deployed state. The result of the remedy is checked directly: Trace a sampled route change to its owner and resulting state.

Incorrect Answers

A:

Confirm the destination responds but never trace the route to its approved change owner. Auditability depends on joining documented intent to deployed state. The appropriate acceptance test is: Trace a sampled route change to its owner and resulting state.

B:

Read the asset inventory alone while its applied config revision is unlinked. Auditability depends on joining documented intent to deployed state. The appropriate acceptance test is: Trace a sampled route change to its owner and resulting state.

C:

Inspect a Git commit hash without checking the actual device that received the corresponding change. Auditability depends on joining documented intent to deployed state. The appropriate acceptance test is: Trace a sampled route change to its owner and resulting state.

Question 473

A warranty replacement changes chassis serial but leaves old inventory entry. Which response MOST directly addresses the stated network problem or requirement?

  1. Reconcile new serial, licenses and support records without losing change history
  2. Retain the departed switch's serial as the current chassis identifier after RMA
  3. Move an old license entitlement to the replacement without checking transfer eligibility
  4. Delete the warranty replacement history so only the latest inventory nickname remains

Explanation

Correct Answer

A:

Physical replacement can preserve logical hostname while changing inventory identity. A direct way to confirm the outcome is to compare discovered serial against equipment return records.

Incorrect Answers

B:

Retain the departed switch's serial as the current chassis identifier after RMA. Physical replacement can preserve logical hostname while changing inventory identity. This does not implement the needed approach: reconcile new serial, licenses and support records without losing change history.

C:

Move an old license entitlement to the replacement without checking transfer eligibility. Physical replacement can preserve logical hostname while changing inventory identity. This does not implement the needed approach: reconcile new serial, licenses and support records without losing change history.

D:

Delete the warranty replacement history so only the latest inventory nickname remains. Physical replacement can preserve logical hostname while changing inventory identity. This does not implement the needed approach: reconcile new serial, licenses and support records without losing change history.

Question 474

A warranty replacement changes chassis serial but leaves old inventory entry. Which diagnostic or verification check MOST directly evaluates the expected network behavior in this situation?

  1. Confirm the device model matches the purchase request but never compare serial numbers
  2. Compare discovered serial against equipment return records
  3. Check the rack slot but not the new chassis's license/support registration
  4. Read the old return label without reconciling discovered replacement hardware identifiers

Explanation

Correct Answer

B:

Physical replacement can preserve logical hostname while changing inventory identity. The result of the remedy is checked directly: Compare discovered serial against equipment return records.

Incorrect Answers

A:

Confirm the device model matches the purchase request but never compare serial numbers. Physical replacement can preserve logical hostname while changing inventory identity. The appropriate acceptance test is: Compare discovered serial against equipment return records.

C:

Check the rack slot but not the new chassis's license/support registration. Physical replacement can preserve logical hostname while changing inventory identity. The appropriate acceptance test is: Compare discovered serial against equipment return records.

D:

Read the old return label without reconciling discovered replacement hardware identifiers. Physical replacement can preserve logical hostname while changing inventory identity. The appropriate acceptance test is: Compare discovered serial against equipment return records.

Question 475

A switch may have rising interface errors without a direct outage. Which response MOST directly addresses the stated network problem or requirement?

  1. Use occasional DNS lookups to infer whether an Ethernet port has increasing frame errors
  2. Turn off SNMP interface telemetry until users notice a complete outage
  3. Poll SNMP interface counters and establish alert thresholds
  4. Count configured interfaces instead of polling the error and discard objects

Explanation

Correct Answer

C:

SNMP polling measures state over intervals, not full packet contents. A direct way to confirm the outcome is to trend ifInErrors and compare link behavior over time.

Incorrect Answers

A:

Use occasional DNS lookups to infer whether an Ethernet port has increasing frame errors. SNMP polling measures state over intervals, not full packet contents. This does not implement the needed approach: poll SNMP interface counters and establish alert thresholds.

B:

Turn off SNMP interface telemetry until users notice a complete outage. SNMP polling measures state over intervals, not full packet contents. This does not implement the needed approach: poll SNMP interface counters and establish alert thresholds.

D:

Count configured interfaces instead of polling the error and discard objects. SNMP polling measures state over intervals, not full packet contents. This does not implement the needed approach: poll SNMP interface counters and establish alert thresholds.

Question 476

A switch may have rising interface errors without a direct outage. Which diagnostic or verification check MOST directly evaluates the expected network behavior in this situation?

  1. Confirm the port is administratively Up without trending ifInErrors
  2. Read one raw counter sample with no interval or baseline comparison
  3. Ping a neighboring host but never inspect the target interface's error growth
  4. Trend ifInErrors and compare link behavior over time

Explanation

Correct Answer

D:

SNMP polling measures state over intervals, not full packet contents. The result of the remedy is checked directly: Trend ifInErrors and compare link behavior over time.

Incorrect Answers

A:

Confirm the port is administratively Up without trending ifInErrors. SNMP polling measures state over intervals, not full packet contents. The appropriate acceptance test is: Trend ifInErrors and compare link behavior over time.

B:

Read one raw counter sample with no interval or baseline comparison. SNMP polling measures state over intervals, not full packet contents. The appropriate acceptance test is: Trend ifInErrors and compare link behavior over time.

C:

Ping a neighboring host but never inspect the target interface's error growth. SNMP polling measures state over intervals, not full packet contents. The appropriate acceptance test is: Trend ifInErrors and compare link behavior over time.

Question 477

A router intermittently reboots between monitoring cycles. Which response MOST directly addresses the stated network problem or requirement?

  1. Configure authenticated asynchronous trap/inform notifications as appropriate
  2. Depend only on slow periodic polling when the router may reboot between cycles
  3. Send all SNMP alerts to an unmonitored address without collector authentication
  4. Replace the asynchronous event notifier with a static uptime label in inventory

Explanation

Correct Answer

A:

Trap events complement polling when a short fault occurs between samples. A direct way to confirm the outcome is to trigger test reboot event and confirm collector alert timing.

Incorrect Answers

B:

Depend only on slow periodic polling when the router may reboot between cycles. Trap events complement polling when a short fault occurs between samples. This does not implement the needed approach: configure authenticated asynchronous trap/inform notifications as appropriate.

C:

Send all SNMP alerts to an unmonitored address without collector authentication. Trap events complement polling when a short fault occurs between samples. This does not implement the needed approach: configure authenticated asynchronous trap/inform notifications as appropriate.

D:

Replace the asynchronous event notifier with a static uptime label in inventory. Trap events complement polling when a short fault occurs between samples. This does not implement the needed approach: configure authenticated asynchronous trap/inform notifications as appropriate.

Question 478

A router intermittently reboots between monitoring cycles. Which diagnostic or verification check MOST directly evaluates the expected network behavior in this situation?

  1. Check the router currently answers SNMP queries but never trigger a restart alert
  2. Trigger test reboot event and confirm collector alert timing
  3. Read collector configuration without confirming a trap or inform was received in time
  4. Inspect historical ping uptime outside the reboot interval and infer no outage event occurred

Explanation

Correct Answer

B:

Trap events complement polling when a short fault occurs between samples. The result of the remedy is checked directly: Trigger test reboot event and confirm collector alert timing.

Incorrect Answers

A:

Check the router currently answers SNMP queries but never trigger a restart alert. Trap events complement polling when a short fault occurs between samples. The appropriate acceptance test is: Trigger test reboot event and confirm collector alert timing.

C:

Read collector configuration without confirming a trap or inform was received in time. Trap events complement polling when a short fault occurs between samples. The appropriate acceptance test is: Trigger test reboot event and confirm collector alert timing.

D:

Inspect historical ping uptime outside the reboot interval and infer no outage event occurred. Trap events complement polling when a short fault occurs between samples. The appropriate acceptance test is: Trigger test reboot event and confirm collector alert timing.

Question 479

An enterprise still uses SNMPv2c with easily guessed community strings. Which response MOST directly addresses the stated network problem or requirement?

  1. Keep easily guessed read-write SNMPv2c community strings across all management VLANs
  2. Open SNMP on the Internet edge so any host can read insecure v2c responses
  3. Migrate management to SNMPv3 authentication and privacy
  4. Enable SNMPv3 without authentication or privacy and claim it protects all management data

Explanation

Correct Answer

C:

SNMPv3 supports security features that community strings alone lack. A direct way to confirm the outcome is to capture protected management sessions and verify v2c disabled.

Incorrect Answers

A:

Keep easily guessed read-write SNMPv2c community strings across all management VLANs. SNMPv3 supports security features that community strings alone lack. This does not implement the needed approach: migrate management to SNMPv3 authentication and privacy.

B:

Open SNMP on the Internet edge so any host can read insecure v2c responses. SNMPv3 supports security features that community strings alone lack. This does not implement the needed approach: migrate management to SNMPv3 authentication and privacy.

D:

Enable SNMPv3 without authentication or privacy and claim it protects all management data. SNMPv3 supports security features that community strings alone lack. This does not implement the needed approach: migrate management to SNMPv3 authentication and privacy.

Question 480

An enterprise still uses SNMPv2c with easily guessed community strings. Which diagnostic or verification check MOST directly evaluates the expected network behavior in this situation?

  1. Confirm an SNMPv3 process exists but never check auth/privacy in the live exchange
  2. Verify new monitoring works while the weak old v2c community is still accepted
  3. Inspect default community names without capturing actual protected management packets
  4. Capture protected management sessions and verify v2c disabled

Explanation

Correct Answer

D:

SNMPv3 supports security features that community strings alone lack. The result of the remedy is checked directly: Capture protected management sessions and verify v2c disabled.

Incorrect Answers

A:

Confirm an SNMPv3 process exists but never check auth/privacy in the live exchange. SNMPv3 supports security features that community strings alone lack. The appropriate acceptance test is: Capture protected management sessions and verify v2c disabled.

B:

Verify new monitoring works while the weak old v2c community is still accepted. SNMPv3 supports security features that community strings alone lack. The appropriate acceptance test is: Capture protected management sessions and verify v2c disabled.

C:

Inspect default community names without capturing actual protected management packets. SNMPv3 supports security features that community strings alone lack. The appropriate acceptance test is: Capture protected management sessions and verify v2c disabled.

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