View Full Juniper JN0-336 Exam Dumps and Practice Test Dumps

 

Question 301.

What does node preemption control in a chassis cluster?

1. Preferred node restoration
2. DNS forwarding behavior
3. Application signature matching
4. NAT address allocation

Correct Answer: 1

Explanation:

Node preemption controls whether a preferred cluster node can regain an active role after recovering from a failure. When preemption is configured, the system can allow the preferred node to become active again according to the configured redundancy behavior. Without appropriate preemption settings, traffic may remain on the currently active node after recovery. DNS forwarding, application signatures, and NAT allocation are unrelated functions. Administrators should consider preemption carefully because automatic role movement can cause another failover event after recovery. Cluster designs should balance preferred-node behavior with operational stability and expected maintenance procedures.

Question 302.

What can cause a redundancy-group failover?

1. URL category update
2. Monitored resource failure
3. DNS cache refresh
4. Certificate renewal

Correct Answer: 2

Explanation:

A redundancy group can fail over when a monitored resource or configured health condition indicates that the currently active node should no longer handle the associated traffic. Depending on the configuration, monitored interfaces, node health, or other conditions can contribute to the failover decision. URL category updates, DNS cache refreshes, and certificate renewal do not normally determine redundancy-group state. Understanding the configured monitoring criteria is important when investigating unexpected failovers. Administrators should review cluster status, monitored resources, and event information together to determine which condition caused the redundancy group to change its active node.

Question 303.

Which information can chassis-cluster monitoring commands reveal?

1. URL reputation
2. Certificate status
3. Node health state
4. DNS response content

Correct Answer: 3

Explanation:

Chassis-cluster monitoring commands can display operational information about cluster nodes, redundancy groups, interfaces, and related health conditions. Node health state is particularly important because it helps administrators determine whether a node is functioning normally and participating correctly in high-availability operations. URL reputation, certificate status, and DNS response content are handled by different security or network functions. Cluster monitoring is therefore an important diagnostic activity when investigating failovers, synchronization problems, or unexpected traffic movement. Administrators should compare node states and redundancy-group information to understand whether the cluster is operating according to its intended design.

Question 304.

What does Security Director device synchronization maintain?

1. Local DNS cache
2. VPN encryption keys
3. Interface counters
4. Management configuration consistency

Correct Answer: 4

Explanation:

Security Director device synchronization helps maintain consistency between centralized management information and the configuration state associated with managed security devices. Synchronization processes allow administrators to identify differences between the management system and device configuration and support controlled reconciliation. DNS caches, VPN encryption keys, and interface counters are not the primary purpose of management synchronization. Keeping centralized and device-side information aligned is important for reliable policy administration and troubleshooting. Administrators should review synchronization status before making major policy changes because stale or inconsistent management information can lead to unexpected deployment results.

Question 305.

What does a policy deployment status indicate?

1. Deployment progress
2. DNS query volume
3. TCP segment size
4. Interface duplex mode

Correct Answer: 1

Explanation:

Policy deployment status indicates the state of a policy deployment operation, such as whether changes are pending, being processed, completed, or encountering an error. This information is useful when administrators need to confirm whether a centrally prepared security policy has actually reached the intended device. DNS query volume, TCP segment size, and interface duplex mode are unrelated operational measurements. Reviewing deployment status before testing a new rule helps distinguish a policy-design problem from a deployment problem. Administrators should also verify the target device and relevant policy revision when deployment results differ from expectations.

Question 306.

What can a policy lock prevent?

1. Route redistribution
2. Simultaneous policy edits
3. VPN negotiation
4. Log rotation

Correct Answer: 2

Explanation:

A policy lock can prevent multiple administrators from modifying the same shared policy simultaneously. This helps reduce conflicting changes and preserves clearer ownership of configuration edits in centralized management environments. Without appropriate locking or check-out controls, concurrent modifications can make it difficult to determine which changes should ultimately be retained. Route redistribution, VPN negotiation, and log rotation are unrelated functions. Policy locking is particularly useful in teams where several administrators work on the same rulebase. Administrators should understand the organization’s change-management workflow so locked policies can be released or handed over appropriately.

Question 307.

What does device synchronization status help identify?

1. DNS resolver failure
2. NAT translation type
3. Configuration mismatch
4. Application timeout

Correct Answer: 3

Explanation:

Device synchronization status can help identify differences between the configuration or policy information maintained by centralized management and the corresponding state on a managed device. Detecting a mismatch is important before deployment because administrators need to understand whether the management system reflects the actual device state. DNS resolver failure, NAT translation type, and application timeout involve different operational areas. Synchronization status can therefore be an important first check when a policy appears correct in centralized management but produces unexpected behavior on the security device. Reconciliation should be performed carefully to avoid unintentionally overwriting valid device-side changes.

Question 308.

Which feature helps revert a configuration after an unconfirmed change?

1. Commit check
2. Configuration archive
3. Commit confirmed
4. Output filter

Correct Answer: 4

Explanation:

Commit confirmed provides a temporary configuration commit that can automatically roll back if the administrator does not confirm the change within the configured period. This is particularly valuable when making remote changes that might interrupt management connectivity. Commit check only validates configuration syntax and consistency, configuration archives preserve historical copies, and output filtering narrows displayed operational information. Commit confirmed therefore provides a specific safeguard against accidental loss of access after a risky configuration change. Administrators should always confirm successful connectivity and intended behavior before the confirmation timer expires.

Question 309.

What does route-policy matching evaluate?

1. Route characteristics
2. File signatures
3. User passwords
4. SSL certificates

Correct Answer: 1

Explanation:

Route-policy matching evaluates characteristics of routing information to determine whether a route should receive a particular policy action. Depending on the configured policy, matching can consider attributes associated with routes, protocol information, prefixes, or other supported routing properties. File signatures, user passwords, and SSL certificates belong to different security mechanisms. Route policies are important because they allow administrators to control route acceptance, modification, or export rather than relying solely on protocol defaults. Careful match conditions help prevent unintended routing changes and make policy behavior easier to understand during troubleshooting.

Question 310.

What can a BGP policy control?

1. Antivirus scanning
2. Route advertisement
3. DNS inspection
4. Certificate revocation

Correct Answer: 2

Explanation:

A BGP policy can control how routes are accepted, modified, or advertised through BGP according to configured matching conditions and actions. This provides administrators with granular control over routing information exchanged with BGP neighbors. Antivirus scanning, DNS inspection, and certificate revocation are unrelated security services. BGP policies can be used to influence route propagation without changing the fundamental operation of the BGP protocol. When troubleshooting unexpected advertisements, administrators should inspect policy terms, route attributes, neighbor configuration, and the direction in which the policy is applied.

Question 311.

What can route export policy determine?

1. Which routes leave a routing domain
2. Which files receive scanning
3. Which users authenticate
4. Which certificates expire

Correct Answer: 3

Explanation:

A route export policy determines which routing information can be exported from a routing domain or protocol process according to configured matching and action rules. This provides control over the routes that become visible to neighboring routing environments. File scanning, user authentication, and certificate expiration are unrelated functions. Export policies are especially useful for controlling route propagation and preventing unnecessary or unintended prefixes from being advertised. Administrators should verify both the policy terms and the direction of application because a correctly written policy can still produce unexpected results if it is attached to the wrong routing process or export context.

Question 312.

What can route import policy control?

1. Incoming route acceptance
2. Interface MTU
3. URL classification
4. VPN certificate storage

Correct Answer: 4

Explanation:

A route import policy controls how incoming routing information is handled before it becomes available to the local routing system according to the applicable policy framework. Administrators can use matching conditions and actions to accept, reject, or modify routes as supported by the routing protocol and configuration. Interface MTU, URL classification, and VPN certificate storage serve different purposes. Import policies are useful for controlling which external routes enter a routing domain and for applying consistent routing decisions. Troubleshooting unexpected routes should include reviewing both the received route information and the policy applied to imported routes.

Question 313.

Which routing feature can prevent unwanted route advertisements?

1. Export policy
2. DNS proxy
3. Antivirus profile
4. Session timeout

Correct Answer: 1

Explanation:

An export policy can prevent unwanted route advertisements by matching routes and rejecting or otherwise controlling their propagation. This allows administrators to restrict which prefixes are shared with specific routing neighbors or external domains. DNS proxying handles name resolution, antivirus profiles inspect content, and session timeouts control connection aging. Export filtering is especially important at routing boundaries where advertising an unintended prefix could change reachability beyond the local network. Administrators should review policy terms and neighbor relationships carefully to ensure that only the intended routes are propagated.

Question 314.

What can route redistribution introduce into another protocol?

1. Security signatures
2. Learned routes
3. User identities
4. DNS categories

Correct Answer: 2

Explanation:

Route redistribution can introduce routes learned from one routing source into another routing protocol or routing domain. This enables networks using different routing mechanisms to exchange selected reachability information. Redistribution is normally controlled through routing policy so administrators can determine which routes should cross the protocol boundary and how their attributes should be represented. Security signatures, user identities, and DNS categories are unrelated information types. Because redistribution can affect large portions of a network, administrators should carefully evaluate possible routing loops, unwanted prefixes, and attribute changes before enabling broad redistribution.

Question 315.

What does an OSPF authentication mismatch commonly cause?

1. Failed neighbor formation
2. Antivirus failure
3. NAT pool exhaustion
4. DNS categorization error

Correct Answer: 3

Explanation:

An OSPF authentication mismatch can prevent neighboring routers from successfully establishing or maintaining an OSPF adjacency. Both sides of the relationship must use compatible authentication settings and credentials when authentication is enabled. Antivirus processing, NAT pool behavior, and DNS categorization are unrelated to OSPF neighbor formation. When an expected OSPF adjacency does not establish, administrators should compare authentication configuration along with area membership, interface parameters, timers, and network reachability. Checking both sides of the adjacency is essential because a configuration difference on either neighbor can prevent successful protocol communication.

Question 316.

What can an OSPF stub-area configuration reduce?

1. Application traffic
2. External route information
3. Certificate validation
4. NAT translations

Correct Answer: 4

Explanation:

An OSPF stub-area configuration can reduce the amount of external routing information carried into the area. This can simplify the routing database and reduce the information that routers within the area need to process when detailed external routes are unnecessary. Application traffic, certificate validation, and NAT translations are unrelated. Stub-area designs require compatible configuration on participating routers, and administrators should understand how the chosen area type affects route availability. When troubleshooting reachability from a stub area, the administrator should consider whether the missing route is external information that the area’s routing design intentionally limits.

Question 317.

What does a routing instance provide?

1. Separate routing table context
2. Antivirus file repair
3. URL reputation storage
4. Certificate revocation data

Correct Answer: 1

Explanation:

A routing instance provides a separate routing context that can maintain its own routing information and associated interfaces or protocols according to the configured instance type. This allows network designs to isolate routing domains logically on the same device. Antivirus repair, URL reputation storage, and certificate revocation data are unrelated security functions. Routing instances are useful in environments requiring multiple independent forwarding or routing domains, including certain VPN and segmentation designs. Administrators should understand which interfaces and routes belong to each instance when troubleshooting reachability because a route present in one routing context may not be available in another.

Question 318.

What can a route target help identify in VPN routing?

1. Log severity
2. Route membership
3. TCP MSS
4. Application timeout

Correct Answer: 2

Explanation:

A route target is used in certain VPN routing architectures to identify the routing communities or VPN contexts with which routes should be associated. Import and export policies can use route-target information to determine which VPN routes are accepted or advertised within a particular routing context. Log severity, TCP MSS, and application timeout have different purposes. Correct route-target configuration is important in multi-VPN environments because an incorrect import or export relationship can cause expected routes to be missing or unintended routes to appear. Troubleshooting should include both route-target values and the policies that process them.

Question 319.

What does a security policy exception commonly allow?

1. Specific traffic bypass
2. Route protocol conversion
3. Certificate generation
4. DNS server creation

Correct Answer: 3

Explanation:

A security policy exception can provide specialized handling for traffic that should receive different treatment from a broader security rule or inspection requirement. Exceptions are useful when a particular trusted service, application, or traffic condition requires behavior that differs from the general policy. Route protocol conversion, certificate generation, and DNS server creation are unrelated. Administrators should define exceptions as narrowly as possible so that only the intended traffic receives the alternate treatment. Broad exceptions can unintentionally reduce security coverage, making careful source, destination, application, and service matching important when constructing exception rules.

Question 320.

What can session aging determine?

1. When inactive sessions expire
2. When certificates renew
3. When routes redistribute
4. When URLs recategorize

Correct Answer: 4

Explanation:

Session aging determines when an inactive or otherwise eligible session is removed from the session table according to configured timeout behavior. Different protocols and session states can have different aging requirements because some applications maintain connections longer than others. Certificate renewal, route redistribution, and URL recategorization operate independently of firewall session aging. Proper timeout configuration helps prevent stale sessions from consuming resources while avoiding premature termination of legitimate long-lived connections. When troubleshooting unexpected connection closures, administrators should examine the relevant session timeout and protocol state rather than assuming that routing or certificate settings are responsible.