View Full Juniper JN0-253 Exam Dumps and Practice Test Dumps.   Question 301 Which Junos configuration commit option allows an administrator to apply changes temporarily and automatically rolls back if a confirmation command is not issued within a specified time limit? commit synchronize commit confirmed commit check commit rescue Correct Answer: 2 Explanation The commit […]

View Full Juniper JN0-253 Exam Dumps and Practice Test Dumps.   Question 321 Which Junos firewall filter action is used to enforce bandwidth limits and drop or remark traffic that exceeds a defined transmission rate? accept discard policer reject Correct Answer: 3 Explanation In Junos OS, applying a policer within a firewall filter term allows […]

View Full Juniper JN0-253 Exam Dumps and Practice Test Dumps.   Question 341 Which Junos operational command allows an administrator to directly compare the differences between the current candidate configuration and a specific historical rollback file? show configuration candidate show configuration rollback show system rescue diff show running configuration changes Correct Answer: 2 Explanation The […]

View Full Juniper JN0-253 Exam Dumps and Practice Test Dumps.   Question 361 Which Junos operational command restores the configuration directly to the state immediately preceding the last active commit? rollback 1 rollback 0 load factory-default request system zeroize Correct Answer: 1 Explanation Junos OS maintains a robust historical rollback archive consisting of up to […]

View Full Juniper JN0-253 Exam Dumps and Practice Test Dumps.   Question 381 Which Junos firewall filter action modifier allows an administrator to track and tally matching packet statistics without altering packet forwarding behavior? count discard reject policer Correct Answer: 1 Explanation In Junos OS, the count action modifier can be attached to any firewall […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 1 Which protocol is commonly used as a link-state IGP? OSPF BGP LDP RSVP Correct Answer: 1 Explanation: OSPF is a link-state Interior Gateway Protocol used to exchange routing information within an autonomous system. It allows routers to maintain a detailed database describing […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 21 Which protocol provides fast neighbor failure detection? RSVP BFD LDP SNMP Correct Answer: 2 Explanation: Bidirectional Forwarding Detection, or BFD, is designed to detect failures between neighboring network devices very quickly. It establishes a lightweight session between endpoints and continuously exchanges control […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 41 Which protocol uses link-state advertisements for topology exchange? RIP BGP OSPF DHCP Correct Answer: 3 Explanation: OSPF uses Link-State Advertisements, commonly called LSAs, to distribute information about network topology among participating routers. These advertisements allow routers to build their link-state databases and […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 61 Which protocol establishes routing adjacencies using hello packets? OSPF BGP LDP SNMP Correct Answer: 1 Explanation: OSPF uses Hello packets to discover neighboring routers and establish OSPF adjacencies. These packets are transmitted periodically through enabled OSPF interfaces and contain information required for […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 81 Which protocol calculates shortest paths from topology information? OSPF BGP LACP SNMP Correct Answer: 1 Explanation: OSPF calculates shortest paths by using its link-state database to understand the network topology. Each participating router exchanges link-state information, builds a synchronized database, and then […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 101 Which protocol resolves IPv6 neighbors using multicast discovery? ICMPv6 Neighbor Discovery IPv4 ARP BOOTP relay Ethernet pause Correct Answer: 1 Explanation: IPv6 does not use ARP for resolving neighboring devices. Instead, IPv6 uses Neighbor Discovery Protocol, which operates through ICMPv6 messages. Neighbor […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 121 Which protocol provides gateway redundancy for connected hosts? VRRP PIM RSVP GRE Correct Answer: 1 Explanation: Virtual Router Redundancy Protocol, or VRRP, provides first-hop gateway redundancy for hosts on an IP network. Multiple routers can participate in a virtual-router arrangement, while one […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 141 Which protocol establishes encrypted tunnels between network endpoints? IPsec VRRP OSPF LLDP Correct Answer: 1 Explanation: IPsec provides security mechanisms for protecting IP communication between network endpoints. Depending on the configured architecture, IPsec can authenticate peers, protect packet integrity, and encrypt traffic […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 161 Which routing protocol uses a link-state database? RIP OSPF BGP PIM Correct Answer: 2 Explanation: OSPF is a link-state routing protocol that maintains a database describing the network topology within its routing domain. Routers exchange link-state information with neighbors and use that […]

View Full Juniper JN0-664 Exam Dumps and Practice Test Dumps.   Question 181 Which IS-IS device performs DIS election on broadcast networks? Designated Intermediate System Routing Engine Area Border Router Label Switching Router Correct Answer: 1 Explanation: In IS-IS, the Designated Intermediate System, commonly called the DIS, is elected on broadcast-capable networks. The DIS creates […]