100% Latest & Updated HP HPE7-A08 Practice Test Questions, Exam Dumps & Verified Answers!
30 Days Free Updates, Instant Download!
Question 530
A workstation can ping 10.1.8.4 but treats 10.1.9.6 incorrectly due to /16 settings on a /24 LAN. What caused this?
- Missing DHCP relay helper
- Default gateway or mask mismatch
- VRRP role or virtual gateway outage
- Invalid DHCP scope or exclusion
Explanation
Correct Answer
B:The configured prefix length creates an erroneous local-network view. A client with incorrect mask/gateway may communicate locally but not route as expected.
Incorrect Answers
A:A VLAN gateway without relay cannot deliver local DHCP broadcasts to a remote server. But this does not address the case requirement to diagnose endpoint IP addressing mismatch.
C:Loss or split of first-hop virtual gateway service can strand endpoints even with good IP leases. But this does not address the case requirement to diagnose endpoint IP addressing mismatch.
D:A server may issue wrong network options or have no available addresses. But this does not address the case requirement to diagnose endpoint IP addressing mismatch.
Question 531
A switch reports DHCP snooping drops on the only upstream server trunk after a security policy rollout. What is the likely root cause?
- Default gateway or mask mismatch
- Invalid DHCP scope or exclusion
- Missing DHCP relay helper
- Untrusted DHCP snooping server port
Explanation
Correct Answer
D:Trusted-port roles do not match the real DHCP topology. An authentic DHCP offer can be dropped if the server-facing uplink is untrusted.
Incorrect Answers
A:A client with incorrect mask/gateway may communicate locally but not route as expected. But this does not address the case requirement to identify first-hop security misconfiguration.
B:A server may issue wrong network options or have no available addresses. But this does not address the case requirement to identify first-hop security misconfiguration.
C:A VLAN gateway without relay cannot deliver local DHCP broadcasts to a remote server. But this does not address the case requirement to identify first-hop security misconfiguration.
Question 532
A user successfully authenticates but is put into a guest network with no internal access. What policy error is plausible?
- Expired or rejected 802.1X credentials
- Missing DHCP snooping binding
- Incorrect downloadable user role
- Overly broad early ACL deny
Explanation
Correct Answer
C:The returned user role may be wrong. An authenticated client may receive a role with the wrong enforcement permissions.
Incorrect Answers
A:Identity failure prevents the port from entering the authorized access state. But this does not address the case requirement to identify incorrect identity-to-role assignment.
B:First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale. But this does not address the case requirement to identify incorrect identity-to-role assignment.
D:An early matching deny can block services intended to be allowed later. But this does not address the case requirement to identify incorrect identity-to-role assignment.
Question 533
An 802.1X workstation never authenticates after the certificate chain is revoked, although link is up. What issue fits?
- Incorrect downloadable user role
- ACL misapplied to interface direction
- Expired or rejected 802.1X credentials
- Missing DHCP snooping binding
Explanation
Correct Answer
C:The supplicant failed identity verification. Identity failure prevents the port from entering the authorized access state.
Incorrect Answers
A:An authenticated client may receive a role with the wrong enforcement permissions. But this does not address the case requirement to diagnose rejected endpoint credentials.
B:Even correct ACE syntax cannot enforce desired policy if bound to the wrong traffic point. But this does not address the case requirement to diagnose rejected endpoint credentials.
D:First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale. But this does not address the case requirement to diagnose rejected endpoint credentials.
Question 534
All new wired sessions fail at a branch while established ones work; RADIUS servers across WAN are unreachable. What is the common cause?
- Missing DHCP snooping binding
- Overly broad early ACL deny
- Unreachable RADIUS authentication service
- Expired or rejected 802.1X credentials
Explanation
Correct Answer
C:Backend authentication connectivity is lost. New admission requests cannot complete if the backend is inaccessible without appropriate fallback.
Incorrect Answers
A:First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale. But this does not address the case requirement to identify missing AAA service reachability.
B:An early matching deny can block services intended to be allowed later. But this does not address the case requirement to identify missing AAA service reachability.
D:Identity failure prevents the port from entering the authorized access state. But this does not address the case requirement to identify missing AAA service reachability.
Question 535
A deny rule exists on a switch but is bound to a nonparticipating interface. What is the enforcement defect?
- Incorrect downloadable user role
- Overly broad early ACL deny
- Unreachable RADIUS authentication service
- ACL misapplied to interface direction
Explanation
Correct Answer
D:Wrong ACL attachment point prevents intended traffic filtering. Even correct ACE syntax cannot enforce desired policy if bound to the wrong traffic point.
Incorrect Answers
A:An authenticated client may receive a role with the wrong enforcement permissions. But this does not address the case requirement to identify misapplied ACL direction or interface.
B:An early matching deny can block services intended to be allowed later. But this does not address the case requirement to identify misapplied ACL direction or interface.
C:New admission requests cannot complete if the backend is inaccessible without appropriate fallback. But this does not address the case requirement to identify misapplied ACL direction or interface.
Question 536
The ACL begins with a deny covering 10.0.0.0/8, then a later permit for a small authorized lab host is never matched. What explains the block?
- Overly broad early ACL deny
- Expired or rejected 802.1X credentials
- Missing DHCP snooping binding
- ACL misapplied to interface direction
Explanation
Correct Answer
A:The earlier broad deny takes precedence. An early matching deny can block services intended to be allowed later.
Incorrect Answers
B:Identity failure prevents the port from entering the authorized access state. But this does not address the case requirement to identify an overly broad policy rule.
C:First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale. But this does not address the case requirement to identify an overly broad policy rule.
D:Even correct ACE syntax cannot enforce desired policy if bound to the wrong traffic point. But this does not address the case requirement to identify an overly broad policy rule.
Question 537
DHCP-based IP source guard rejects a legitimate client after a static-address change with no matching binding. What security dependency is absent?
- Missing DHCP snooping binding
- ACL misapplied to interface direction
- Unreachable RADIUS authentication service
- Expired or rejected 802.1X credentials
Explanation
Correct Answer
A:Valid source bindings are needed for some anti-spoofing controls. First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale.
Incorrect Answers
B:Even correct ACE syntax cannot enforce desired policy if bound to the wrong traffic point. But this does not address the case requirement to identify missing authorized IP/MAC association.
C:New admission requests cannot complete if the backend is inaccessible without appropriate fallback. But this does not address the case requirement to identify missing authorized IP/MAC association.
D:Identity failure prevents the port from entering the authorized access state. But this does not address the case requirement to identify missing authorized IP/MAC association.
Question 538
The switch sees EAP messages but the identity server rejects the user certificate. Which failure class applies?
- Expired or rejected 802.1X credentials
- Overly broad early ACL deny
- Unreachable RADIUS authentication service
- Missing DHCP snooping binding
Explanation
Correct Answer
A:The credential validation step did not succeed. Identity failure prevents the port from entering the authorized access state.
Incorrect Answers
B:An early matching deny can block services intended to be allowed later. But this does not address the case requirement to diagnose 802.1X authentication rejection.
C:New admission requests cannot complete if the backend is inaccessible without appropriate fallback. But this does not address the case requirement to diagnose 802.1X authentication rejection.
D:First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale. But this does not address the case requirement to diagnose 802.1X authentication rejection.
Question 539
An ACL policy denies all TCP from VLAN 20 before checking a required HTTPS exception. What rule-order issue is present?
- Overly broad early ACL deny
- ACL misapplied to interface direction
- Incorrect downloadable user role
- Missing DHCP snooping binding
Explanation
Correct Answer
A:A matching early deny can shadow a later permit. An early matching deny can block services intended to be allowed later.
Incorrect Answers
B:Even correct ACE syntax cannot enforce desired policy if bound to the wrong traffic point. But this does not address the case requirement to recognize ACL ordering conflict.
C:An authenticated client may receive a role with the wrong enforcement permissions. But this does not address the case requirement to recognize ACL ordering conflict.
D:First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale. But this does not address the case requirement to recognize ACL ordering conflict.
Question 540
A privileged engineer is placed in an onboarding role after a ClearPass policy change. Which decision should be traced?
- Missing DHCP snooping binding
- Expired or rejected 802.1X credentials
- Incorrect downloadable user role
- Unreachable RADIUS authentication service
Explanation
Correct Answer
C:Role mapping controls client access after successful authentication. An authenticated client may receive a role with the wrong enforcement permissions.
Incorrect Answers
A:First-hop protections can drop legitimate IP or ARP packets when binding state is absent or stale. But this does not address the case requirement to verify RADIUS enforcement result.
B:Identity failure prevents the port from entering the authorized access state. But this does not address the case requirement to verify RADIUS enforcement result.
D:New admission requests cannot complete if the backend is inaccessible without appropriate fallback. But this does not address the case requirement to verify RADIUS enforcement result.
HPE Network Switching Professional (HPE7-A08) Practice Tests