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CompTIA N10-009 Practice Test 7

Question 60

A network team observes: An organization needs predictable private interconnection to a cloud provider where internet VPN variability is unacceptable. What is the MOST appropriate corrective action or technical decision?

  1. Route outbound internet traffic through an approved NAT gateway while preserving private ingress restrictions.
  2. Remove unintended public ingress and constrain cloud network policy to approved peers.
  3. Manage tenant identities, policies and content while the SaaS provider patches underlying servers.
  4. Use the provider's supported dedicated connectivity service with redundant paths.

Explanation

Correct Answer

D:

Private interconnects avoid internet transport but still require resiliency design. The wan requirement favors a dedicated private circuit.

Incorrect Answers

A:

Routing outbound internet traffic through an approved NAT gateway while preserving private ingress restrictions would not meet the need for the provider's supported dedicated connectivity service with redundant paths.

B:

Removing unintended public ingress and constrain cloud network policy to approved peers would not meet the need for the provider's supported dedicated connectivity service with redundant paths.

C:

Managing tenant identities, policies and content while the SaaS provider patches underlying servers would not meet the need for the provider's supported dedicated connectivity service with redundant paths.

Question 61

A network team addresses this situation: An organization needs predictable private interconnection to a cloud provider where internet VPN variability is unacceptable. After the corrective action, which test or result BEST verifies that the problem is resolved?

  1. Measure sustained throughput and failover across independent private links.
  2. Fetch a signed update from a test instance and verify unsolicited inbound denial.
  3. Test public reachability denial while internal allowed connections succeed.
  4. Review tenant access controls and vendor service assurance rather than host patches.

Explanation

Correct Answer

A:

Link and failover measurements demonstrate the design objective.

Incorrect Answers

B:

Outbound success with inbound denial validates translation boundaries. It does not measure sustained throughput and failover across independent private links.

C:

Path tests show both route policy and traffic enforcement. It does not measure sustained throughput and failover across independent private links.

D:

Tenant configuration and provider evidence match the service model. It does not measure sustained throughput and failover across independent private links.

Question 62

A network specialist investigates this evidence: An organization needs predictable private interconnection to a cloud provider where internet VPN variability is unacceptable. Which underlying condition BEST explains the observed failure or requirement?

  1. The private subnet needs outbound address translation without public instance addresses.
  2. The WAN requirement favors a dedicated private circuit.
  3. The customer is confusing SaaS management with infrastructure operation.
  4. The team is confusing stateful flow tracking with stateless ACL semantics.

Explanation

Correct Answer

B:

The WAN requirement favors a dedicated private circuit. Private interconnects avoid internet transport but still require resiliency design.

Incorrect Answers

A:

NAT rewrites connection addresses or ports according to an explicit translation rule. That does not establish the WAN requirement favors a dedicated private circuit.

C:

The customer is confusing SaaS management with infrastructure operation. That does not establish the WAN requirement favors a dedicated private circuit.

D:

Stateful firewalls can distinguish permitted connection initiation from return traffic. That does not establish the WAN requirement favors a dedicated private circuit.

Question 63

A network team observes: A company buys hosted email and asks its administrators to patch the provider's operating system directly. What is the MOST appropriate corrective action or technical decision?

  1. Use the provider's supported dedicated connectivity service with redundant paths.
  2. Configure health-aware automatic scale-out and scale-in based on demand metrics.
  3. Manage tenant identities, policies and content while the SaaS provider patches underlying servers.
  4. Remove unintended public ingress and constrain cloud network policy to approved peers.

Explanation

Correct Answer

C:

SaaS customers control tenant configuration rather than host operating systems. The customer is confusing saas management with infrastructure operation.

Incorrect Answers

A:

Using the provider's supported dedicated connectivity service with redundant paths would not manage tenant identities, policies and content while the SaaS provider patches underlying servers.

B:

Configuring health-aware automatic scale-out and scale-in based on demand metrics would not manage tenant identities, policies and content while the SaaS provider patches underlying servers.

D:

Removing unintended public ingress and constrain cloud network policy to approved peers would not manage tenant identities, policies and content while the SaaS provider patches underlying servers.

Question 64

A network team addresses this situation: A company buys hosted email and asks its administrators to patch the provider's operating system directly. After the corrective action, which test or result BEST verifies that the problem is resolved?

  1. Measure sustained throughput and failover across independent private links.
  2. Check negotiated ESP associations and send authorized subnet-to-subnet traffic.
  3. Capture the handshake and confirm outbound return packets pass.
  4. Review tenant access controls and vendor service assurance rather than host patches.

Explanation

Correct Answer

D:

Tenant configuration and provider evidence match the service model.

Incorrect Answers

A:

Link and failover measurements demonstrate the design objective. It does not review tenant access controls and vendor service assurance rather than host patches.

B:

Encrypted packet and end-to-end evidence validate the tunnel. It does not review tenant access controls and vendor service assurance rather than host patches.

C:

SYN-ACK propagation proves reciprocal stateless rules are correct. It does not review tenant access controls and vendor service assurance rather than host patches.

Question 65

A network specialist investigates this evidence: A company buys hosted email and asks its administrators to patch the provider's operating system directly. Which underlying condition BEST explains the observed failure or requirement?

  1. The customer is confusing SaaS management with infrastructure operation.
  2. The WAN requirement favors a dedicated private circuit.
  3. Capacity is fixed rather than adjusted to changing load.
  4. Private network traffic crosses an untrusted transport.

Explanation

Correct Answer

A:

The customer is confusing SaaS management with infrastructure operation. SaaS customers control tenant configuration rather than host operating systems.

Incorrect Answers

B:

The WAN requirement favors a dedicated private circuit. That does not establish the customer is confusing SaaS management with infrastructure operation.

C:

Capacity is fixed rather than adjusted to changing load. That does not establish the customer is confusing SaaS management with infrastructure operation.

D:

Private network traffic crosses an untrusted transport. That does not establish the customer is confusing SaaS management with infrastructure operation.

Question 66

A network team observes: A cloud API runs well during the day but degrades on unpredictable evening bursts even though extra instances can be launched. What is the MOST appropriate corrective action or technical decision?

  1. Route outbound internet traffic through an approved NAT gateway while preserving private ingress restrictions.
  2. Configure health-aware automatic scale-out and scale-in based on demand metrics.
  3. Add scoped reciprocal traffic rules for the actual return direction and ports.
  4. Apply only needed session-initiation rules in the stateful security group.

Explanation

Correct Answer

B:

Elasticity adds or releases resources as measured demand changes. Capacity is fixed rather than adjusted to changing load.

Incorrect Answers

A:

Routing outbound internet traffic through an approved NAT gateway while preserving private ingress restrictions would not configure health-aware automatic scale-out and scale-in based on demand metrics.

C:

Adding scoped reciprocal traffic rules for the actual return direction and ports would not configure health-aware automatic scale-out and scale-in based on demand metrics.

D:

Applying only needed session-initiation rules in the stateful security group would not configure health-aware automatic scale-out and scale-in based on demand metrics.

Question 67

A network team addresses this situation: A cloud API runs well during the day but degrades on unpredictable evening bursts even though extra instances can be launched. After the corrective action, which test or result BEST verifies that the problem is resolved?

  1. Fetch a signed update from a test instance and verify unsolicited inbound denial.
  2. Capture the handshake and confirm outbound return packets pass.
  3. Run a bounded load test and observe scaling plus response-time targets.
  4. Check negotiated ESP associations and send authorized subnet-to-subnet traffic.

Explanation

Correct Answer

C:

Capacity movement tied to load validates elasticity.

Incorrect Answers

A:

Outbound success with inbound denial validates translation boundaries. That check cannot demonstrate traffic delivery to healthy application targets.

B:

SYN-ACK propagation proves reciprocal stateless rules are correct. That check cannot demonstrate traffic delivery to healthy application targets.

D:

Encrypted packet and end-to-end evidence validate the tunnel. That check cannot demonstrate traffic delivery to healthy application targets.

Question 68

A network team observes: A DNS service resolves short queries but large signed responses require reliable fallback and a firewall blocks TCP 53. What is the MOST appropriate corrective action or technical decision?

  1. Allow SMB only on the explicitly approved internal host path.
  2. Allow only approved RDP TCP 3389 via the controlled access gateway.
  3. Permit supported SIP signaling on the configured 5060 or TLS 5061 path.
  4. Permit appropriate DNS traffic on TCP and UDP 53 for approved resolvers.

Explanation

Correct Answer

D:

Truncation and transfer scenarios can require TCP despite common UDP queries. Dns requires tcp 53 for some responses in addition to udp 53.

Incorrect Answers

A:

Allowing SMB only on the explicitly approved internal host path would not permit appropriate DNS traffic on TCP and UDP 53 for approved resolvers.

B:

Allowing only approved RDP TCP 3389 via the controlled access gateway would not permit appropriate DNS traffic on TCP and UDP 53 for approved resolvers.

C:

Permitting supported SIP signaling on the configured 5060 or TLS 5061 path would not permit appropriate DNS traffic on TCP and UDP 53 for approved resolvers.

Question 69

A network team addresses this situation: A DNS service resolves short queries but large signed responses require reliable fallback and a firewall blocks TCP 53. After the corrective action, which test or result BEST verifies that the problem is resolved?

  1. Query a large signed record and verify a complete TCP retry.
  2. Mount the specified share from the approved client while outside hosts remain blocked.
  3. Test RDP from approved management addresses and deny untrusted sources.
  4. Generate an authorized test interface event and observe the trap.

Explanation

Correct Answer

A:

TCP connections require an accepted SYN, SYN-ACK and ACK exchange before application requests.

Incorrect Answers

B:

Success and isolation validate narrow file-sharing policy. That check cannot demonstrate completion of the TCP three-way handshake.

C:

Test RDP from approved management addresses and deny untrusted sources. That check cannot demonstrate completion of the TCP three-way handshake.

D:

Arrival at UDP 162 validates asynchronous notification. That check cannot demonstrate completion of the TCP three-way handshake.

Question 70

A network specialist investigates this evidence: A DNS service resolves short queries but large signed responses require reliable fallback and a firewall blocks TCP 53. Which underlying condition BEST explains the observed failure or requirement?

  1. The requested service uses RDP rather than SSH.
  2. DNS requires TCP 53 for some responses in addition to UDP 53.
  3. SMB file sharing depends on TCP 445.
  4. Time synchronization needs a reachable time source.

Explanation

Correct Answer

B:

DNS requires TCP 53 for some responses in addition to UDP 53. Truncation and transfer scenarios can require TCP despite common UDP queries.

Incorrect Answers

A:

The requested service uses RDP rather than SSH. That does not establish completion of the TCP three-way handshake.

C:

SMB operates over a distinct file-service port.

D:

TCP connections require an accepted SYN, SYN-ACK and ACK exchange before application requests. The missing change involves dNS requires TCP 53 for some responses in addition to UDP 53.


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