Juniper JN0-336 Dumps Questions Answers

The correct answers are A, D, and E. In IPsec VPN terminology, DES, 3DES, and AES are encryption algorithms used to provide confidentiality for protected IP traffic. Juniper’s IPsec material identifies AES, DES, and Triple DES/3DES as IPsec encryption standards, while separating them from authentication hash algorithms such as MD5, SHA-1, and SHA-2. This distinction matters heavily in JNCIS-SEC because IPsec proposals contain different cryptographic functions: encryption protects packet confidentiality, while authentication/hash algorithms validate integrity and origin.

Option B, SHA-1, is incorrect because SHA-1 is a hashing/authentication algorithm, not an encryption algorithm. It produces a message digest used for integrity checking and authentication, commonly as an HMAC variant. Option C, MD5, is also incorrect for the same reason: MD5 is a message-digest algorithm used for authentication/integrity, not for encrypting payload data. AES is the modern preferred encryption family because it is cryptographically stronger than DES and 3DES at comparable key strengths, while DES and 3DES remain historically recognized IPsec encryption algorithms. Reference topics: IPsec VPN, IPsec proposals, encryption algorithms, authentication algorithms, DES, 3DES, AES, SHA, and MD5.

The correct answers are A and B. In SRX chassis clustering, the fabric link, represented by fab interfaces, is the data-plane connection between the two cluster nodes. Juniper describes the fabric as the back-to-back data connection used when traffic on one node must be processed on the other node or must exit through an interface on the other node; session-state information also passes over the fabric. This is especially visible in active/active clustering, where ingress and egress interfaces can reside on different nodes and transit traffic must cross the fabric link.

Option B is also correct because the fabric link still exists in active/passive clustering for cluster data-plane synchronization and inter-node state handling, even though active/passive designs minimize fabric transit traffic because only one node normally forwards traffic at a time. Juniper specifically states that active/passive mode minimizes traffic over the fabric link, not that the fabric link is unused.

Options C and D are not the intended answers. The cluster is identified by a configured cluster ID, and each chassis is identified by a node ID, but the fabric interface names themselves are not where the cluster ID is reflected. Reference topics: HA Clustering, fabric link, active/active clustering, active/passive clustering, session synchronization, inter-node traffic.

The correct answers are B and C. IDP false positives occur when legitimate traffic matches an attack signature or attack object incorrectly. One valid way to reduce false positives is to remove the problematic attack object from the IDP rule, especially when that object is not relevant to the protected application, server role, or traffic direction. Juniper defines attack objects as the items specified in IDP rules to identify malicious activity, so removing an irrelevant or noisy attack object directly reduces unwanted matches.

Option C is also correct because Juniper specifically recommends using an exempt rulebase when an IDP rule uses an attack object group containing attack objects that produce false positives or irrelevant log records. Exempt rules can exclude a specific source, destination, or source/destination pair from matching an IDP rule, preventing unnecessary alarms.

Option A is wrong because changing the action to a lower severity response does not reduce the false positive; it only changes what happens after the false match occurs. Option D is wrong because a terminal rule at the end of the rule base does not prevent earlier false-positive matches. Reference topics: IDP, attack objects, exempt rulebase, false-positive tuning, IDP rule matching.