McAfee Secure

Exam Code: 156-315.82

Exam Name: Check Point Certified Security Expert - R82 (CCSE)

Certification Provider: Checkpoint

Corresponding Certification: CCSE R82

Questions & Answers

Checkpoint 156-315.82 Questions & Answers

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Checkpoint 156-315.82 Practice Test 17

Question 160

Two geographically separated gateways show matching policy packages, but IKE never starts. Which initial checks distinguish connectivity from crypto issues?

  1. Immediately replace all installed encryption algorithms before checking packet delivery.
  2. Delete the gateway objects and import new ones from a backup without transport analysis.
  3. Increase the number of logged application categories to force IKE traffic.
  4. Confirm each peer's reachable public address and permitted IKE transport before testing proposals.

Explanation

Correct Answer

D:

Cryptographic negotiation cannot complete if initial packets cannot reach the other gateway.

Incorrect Answers

A:

Proposal changes are premature when no IKE packets arrive.

B:

Recreating objects destroys context and does not prove the network path.

C:

Application logging settings do not establish reachability for VPN control packets.

Question 161

A peer's public IP is reachable and IKE packets arrive, but the tunnel logs indicate an authentication failure. What should be examined?

  1. The configured pre-shared key or certificate trust and expected peer identities.
  2. The worker CPU utilization of an unrelated SmartEvent reporting server.
  3. The name of the local DHCP address pool used by office laptops.
  4. The number of administrators viewing SmartConsole concurrently.

Explanation

Correct Answer

A:

Delivered packets with failed authentication point at credentials or identity mismatch.

Incorrect Answers

B:

Event processing load does not determine the partner's IKE authentication result.

C:

Local DHCP labels are not IPsec peer authentication material.

D:

Console user count does not substitute for valid peer credentials.

Question 162

After a successful tunnel negotiation, traffic between two specific subnets is not encrypted. Which configuration pair matters most?

  1. The local management server's backup retention days and log archive compression.
  2. The local and remote VPN domains and the installed rule allowing the intended protected flow.
  3. The remote peer's public web server TLS certificate and DNS zone.
  4. The administrator laptop's SSH key format and shell history.

Explanation

Correct Answer

B:

The tunnel can exist while a particular source/destination pair lies outside its selectors.

Incorrect Answers

A:

Backup retention does not select which data subnets use IPsec.

C:

Unrelated HTTPS identity is not the site-to-site protected network selector.

D:

Local shell settings cannot turn nonmatching traffic into tunneled packets.

Question 163

A VPN peer accepts a pre-shared key but rejects the intended IPsec SA with NO_PROPOSAL_CHOSEN. What should be aligned?

  1. The date format in the quarterly SmartEvent compliance scorecard.
  2. The number of NAT objects assigned to a different external web server.
  3. The child SA algorithms and parameters supported by both gateways.
  4. The administrator names on both security management servers.

Explanation

Correct Answer

C:

This error indicates disagreement on acceptable protected traffic negotiation proposals.

Incorrect Answers

A:

Report date formatting cannot make an IPsec transform compatible.

B:

Unrelated NAT objects do not fix a child SA proposal mismatch.

D:

Management account names are not selected IPsec cryptographic transforms.

Question 164

A Check Point gateway and external peer use different protected network masks for the same subnet. What error can result?

  1. An automatically increased disk space allocation on the branch VPN gateway.
  2. A SmartConsole session merge conflict unrelated to the VPN.
  3. An unexpected vendor support contract renewal alert during tunnel setup.
  4. A phase-two traffic selector mismatch or only partial encryption coverage for intended hosts.

Explanation

Correct Answer

D:

Both peers must agree which address pairs belong to the protected VPN domain.

Incorrect Answers

A:

Subnet mask disagreement does not directly expand local disk capacity.

B:

Administrative session concurrency is not the IPsec selector mismatch.

C:

License renewal email is not a description of encrypted subnet membership.

Question 165

A partner specifies that only TCP traffic on an application port is allowed through the VPN. What must be kept distinct from encryption setup?

  1. The Access Control services and rule conditions permitting the intended application through the tunnel.
  2. The IKE pre-shared key determines which TCP destination ports automatically pass.
  3. The tunnel's phase-two encryption algorithm replaces all destination-port filtering.
  4. Management HA automatically creates a TCP allow rule for every VPN community member.

Explanation

Correct Answer

A:

Encrypted membership does not authorize every service and port to the partner network.

Incorrect Answers

B:

Authentication credentials do not set application-layer access-control rules.

C:

Cryptographic transforms protect packets but do not define application access permissions.

D:

Management redundancy does not configure unrelated application security rules.

Question 166

A VPN tunnel breaks after a partner switches internet providers while leaving its certificate trust unchanged. What is the first location-related suspect?

  1. The security monitoring dashboard's display layout on the local workstation.
  2. The peer reachability address, link selection or ISP path rather than certificate identity alone.
  3. The license administrator's email distribution list used for annual renewals.
  4. The number of internal host objects in an unrelated static NAT group.

Explanation

Correct Answer

B:

A certificate can remain valid while the remote public endpoint becomes unreachable.

Incorrect Answers

A:

Report layout cannot update the public transport address of the peer.

C:

Email routing is not the live VPN path to a partner.

D:

Unrelated object count cannot restore an obsolete VPN endpoint address.

Question 167

A gateway has a working VPN with one partner, but the same community added another gateway with overlapping VPN domains. What must be assessed?

  1. Assume all communities automatically isolate overlapping subnets without additional design.
  2. Increase SmartEvent alert severity until traffic follows the correct peer.
  3. Whether peer traffic domains and routing remain unambiguous for every intended tunnel pair.
  4. Change the management server's operating system timezone to separate peer domains.

Explanation

Correct Answer

C:

Overlapping address selectors may cause traffic to use the wrong encryption path.

Incorrect Answers

A:

Address duplication can still create ambiguity in routing and selector matching.

B:

Monitoring priorities cannot select the correct VPN forwarding next hop.

D:

System time display does not solve overlapping protected network addresses.

Question 168

A tunnel fails after an administrator enabled hide NAT on an inside interface. What is the best diagnostic comparison?

  1. Only check whether the branch internet speed test reports maximum throughput.
  2. Change only the VPN community description so it includes the NAT rule name.
  3. Disable all certificate validation because NAT and certificate trust are always incompatible.
  4. Examine packets before and after translation against the configured encryption-domain selectors.

Explanation

Correct Answer

D:

Source translation may change the network identity expected by the remote VPN peer.

Incorrect Answers

A:

Raw bandwidth cannot show if an unintended source NAT rule changes packet identity.

B:

Descriptions have no impact on actual translation match criteria.

C:

NAT can coexist with authenticated VPNs when properly designed.

Question 169

An IPsec tunnel works for small control packets but drops large application transfers. What should the team investigate?

  1. Encapsulation overhead, path MTU, and fragmentation or MSS behavior on the VPN route.
  2. The number of Management HA peers available to edit the policy.
  3. The alphabetical order of administrator accounts in SmartConsole.
  4. The total number of URL Filtering categories in a separate policy layer.

Explanation

Correct Answer

A:

Large packets can fail when encrypted size exceeds the effective path MTU.

Incorrect Answers

B:

Management redundancy does not directly set end-to-end packet MTU.

C:

Account sorting has no bearing on encrypted packet size.

D:

Web category count cannot fix fragmentation for the tunnel path.

Question 170

A security audit requires proof that a remote site's traffic is actually encrypted, not merely reachable. What should be examined?

  1. Only a successful ping to the remote gateway's public IP address.
  2. VPN tunnel status together with relevant encrypted-session and rule logs for the specific protected flow.
  3. Only the management appliance's local storage free-space percentage.
  4. Only whether the branch's DNS server resolves its public website correctly.

Explanation

Correct Answer

B:

Reachability alone does not show that a particular packet used IPsec.

Incorrect Answers

A:

ICMP reachability can succeed without an encrypted tunnel for user traffic.

C:

Disk capacity does not identify encrypted protected traffic.

D:

DNS resolution cannot establish IPsec processing of a source/destination pair.

Check Point Certified Security Expert - R82 (CCSE) (156-315.82) Practice Tests