{"id":17152,"date":"2026-09-21T06:47:20","date_gmt":"2026-09-21T06:47:20","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=17152"},"modified":"2026-09-21T06:47:20","modified_gmt":"2026-09-21T06:47:20","slug":"juniper-jn0-106-practice-test-questions-and-exam-dumps-part2-q21-40","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/juniper-jn0-106-practice-test-questions-and-exam-dumps-part2-q21-40\/","title":{"rendered":"Juniper JN0-106 Practice Test Questions and Exam Dumps Part2 Q21-40"},"content":{"rendered":"

View Full <\/b>Juniper JN0-106 Exam Dumps<\/b><\/a> and Practice Test Dumps.<\/b><\/h2>\n

 <\/p>\n

Question 21<\/b><\/h3>\n

Which Junos OS command is used to display the current routing table?<\/b><\/p>\n

    \n
  1. show interfaces<\/span><\/li>\n
  2. show route<\/span><\/li>\n
  3. show chassis hardware<\/span><\/li>\n
  4. show system users<\/span><\/li>\n<\/ol>\n

    Correct Answer: 2<\/b><\/p>\n

    Explanation<\/b><\/p>\n

    The show route command displays the routing information currently available on a Junos device. The routing table contains routes learned through connected interfaces, static configuration, and dynamic routing protocols. Network administrators use this command to verify whether a destination network is known and which next hop or interface will be used to reach it. Additional options can be used to examine specific routes or routing-table information. Understanding how to inspect the routing table is essential for troubleshooting connectivity because it helps determine whether the device has an appropriate route toward a destination.<\/span><\/p>\n

    Question 22<\/b><\/h3>\n

    Which command is used to display brief interface information on a Junos device?<\/b><\/p>\n

      \n
    1. show interfaces terse<\/span><\/li>\n
    2. show route terse<\/span><\/li>\n
    3. show chassis terse<\/span><\/li>\n
    4. show system terse<\/span><\/li>\n<\/ol>\n

      Correct Answer: 1<\/b><\/p>\n

      Explanation<\/b><\/p>\n

      The show interfaces terse command provides a compact summary of interface status and configuration. It is particularly useful when an administrator needs to review many interfaces quickly without displaying extensive operational statistics. The output can show interface names, administrative status, link status, and configured addresses. This command is commonly used during initial troubleshooting to identify interfaces that may be disabled or not operational. For detailed information about a particular interface, an administrator can use the more extensive show interfaces command.<\/span><\/p>\n

      Question 23<\/b><\/h3>\n

      What is the purpose of the Junos candidate configuration?<\/b><\/p>\n

        \n
      1. To store temporary log files<\/span><\/li>\n
      2. To store configuration changes before they are committed<\/span><\/li>\n
      3. To store routing protocol packets<\/span><\/li>\n
      4. To replace the forwarding table<\/span><\/li>\n<\/ol>\n

        Correct Answer: 2<\/b><\/p>\n

        Explanation<\/b><\/p>\n

        The candidate configuration is the configuration being prepared by an administrator before it becomes active. When changes are made in Junos configuration mode, they are initially stored in the candidate configuration. Administrators can review these changes and make additional modifications before using the commit command. This approach provides greater control over configuration changes because administrators can prepare a complete set of modifications before activating them. The candidate configuration is therefore an important part of Junos configuration management and helps reduce the risk of accidentally applying incomplete changes.<\/span><\/p>\n

        Question 24<\/b><\/h3>\n

        Which command can be used to remove a configuration statement in Junos OS?<\/b><\/p>\n

          \n
        1. remove<\/span><\/li>\n
        2. erase<\/span><\/li>\n
        3. delete<\/span><\/li>\n
        4. clear<\/span><\/li>\n<\/ol>\n

          Correct Answer: 3<\/b><\/p>\n

          Explanation<\/b><\/p>\n

          The delete command is used in Junos configuration mode to remove configuration statements from the candidate configuration. Administrators can use delete at different levels of the configuration hierarchy depending on what they need to remove. For example, a specific interface configuration or routing policy statement can be deleted without removing unrelated settings. After making the deletion, the administrator can review the resulting configuration and use commit to activate the change. This structured approach allows configuration elements to be modified precisely while maintaining the hierarchical organization used by Junos.<\/span><\/p>\n

          Question 25<\/b><\/h3>\n

          Which command displays the configuration hierarchy at the current location in configuration mode?<\/b><\/p>\n

            \n
          1. show<\/span><\/li>\n
          2. display<\/span><\/li>\n
          3. list<\/span><\/li>\n
          4. inspect<\/span><\/li>\n<\/ol>\n

            Correct Answer: 1<\/b><\/p>\n

            Explanation<\/b><\/p>\n

            The show command can be used in Junos configuration mode to display configuration statements at the current hierarchy level. It is useful for reviewing settings before making additional changes or committing the configuration. Junos uses a hierarchical configuration structure, so administrators can move through different levels and use show to inspect the statements available at that location. This makes configuration review more manageable and helps administrators verify that commands have been entered correctly. The show command in configuration mode should not be confused with its many operational-mode uses.<\/span><\/p>\n

            Question 26<\/b><\/h3>\n

            Which command allows an administrator to move to a specific configuration hierarchy level?<\/b><\/p>\n

              \n
            1. edit<\/span><\/li>\n
            2. move<\/span><\/li>\n
            3. enter<\/span><\/li>\n
            4. locate<\/span><\/li>\n<\/ol>\n

              Correct Answer: 1<\/b><\/p>\n

              Explanation<\/b><\/p>\n

              The edit command is used in Junos configuration mode to move to a specific level of the configuration hierarchy. For example, an administrator can use edit to enter the interfaces hierarchy and then work with individual interface settings. Working within the hierarchy can make configuration tasks easier because commands can be entered relative to the current location. Administrators can also use the up command to move back one level and top to return to the top of the configuration hierarchy. Understanding hierarchy navigation is fundamental to working efficiently with Junos configurations.<\/span><\/p>\n

              Question 27<\/b><\/h3>\n

              Which command displays the configuration in a set-style format?<\/b><\/p>\n

                \n
              1. show | display set<\/span><\/li>\n
              2. show | display route<\/span><\/li>\n
              3. show | display terse<\/span><\/li>\n
              4. show | display table<\/span><\/li>\n<\/ol>\n

                Correct Answer: 1<\/b><\/p>\n

                Explanation<\/b><\/p>\n

                The show | display set command displays configuration statements using Junos set syntax. This format is useful when administrators want to see configuration commands that can be entered directly at the appropriate hierarchy level. Instead of displaying the configuration as a traditional hierarchy, the set format presents each statement as an individual command. This can make it easier to copy or understand specific configuration settings. Administrators frequently use this output when documenting configurations or preparing commands for another Junos device.<\/span><\/p>\n

                Question 28<\/b><\/h3>\n

                What does the rollback command allow an administrator to do?<\/b><\/p>\n

                  \n
                1. Restart the device<\/span><\/li>\n
                2. Restore a previous committed configuration<\/span><\/li>\n
                3. Delete the routing table<\/span><\/li>\n
                4. Disable all interfaces<\/span><\/li>\n<\/ol>\n

                  Correct Answer: 2<\/b><\/p>\n

                  Explanation<\/b><\/p>\n

                  The rollback command allows an administrator to load a previous committed configuration into the candidate configuration. Junos maintains multiple versions of committed configurations, allowing administrators to return to an earlier state when necessary. After loading the desired rollback configuration, the administrator can review it and commit it if appropriate. This capability is especially useful when a recent configuration change causes unexpected behavior. Rather than manually reversing every individual command, an administrator can use rollback to restore a known configuration version in a controlled manner.<\/span><\/p>\n

                  Question 29<\/b><\/h3>\n

                  Which command can be used to save the current candidate configuration to a file?<\/b><\/p>\n

                    \n
                  1. archive<\/span><\/li>\n
                  2. save<\/span><\/li>\n
                  3. backup<\/span><\/li>\n
                  4. write<\/span><\/li>\n<\/ol>\n

                    Correct Answer: 2<\/b><\/p>\n

                    Explanation<\/b><\/p>\n

                    The save command in Junos configuration mode can be used to save the candidate configuration to a specified file. This provides a convenient way to preserve configuration information for documentation, backup, or later reference. Saving a configuration to a file does not activate the configuration; the commit command is required to make configuration changes active. Administrators should understand the difference between saving configuration text and committing configuration changes. A saved file can be useful when preparing configuration changes or maintaining an external record of device settings.<\/span><\/p>\n

                    Question 30<\/b><\/h3>\n

                    Which Junos command displays system uptime and basic system information?<\/b><\/p>\n

                      \n
                    1. show system uptime<\/span><\/li>\n
                    2. show uptime interface<\/span><\/li>\n
                    3. show chassis uptime<\/span><\/li>\n
                    4. show route uptime<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 1<\/b><\/p>\n

                      Explanation<\/b><\/p>\n

                      The show system uptime command displays information about how long the Junos device and relevant system components have been running. It can provide useful information when troubleshooting unexpected restarts or determining whether a system reboot occurred recently. System uptime information can be considered alongside logs, alarms, and other operational data to investigate device behavior. Administrators commonly use show system commands for monitoring system health and status. Knowing the correct command helps quickly determine whether the device has recently restarted or has been operating continuously.<\/span><\/p>\n

                      Question 31<\/b><\/h3>\n

                      Which protocol is used to resolve an IPv4 address to a MAC address on a local network?<\/b><\/p>\n

                        \n
                      1. ICMP<\/span><\/li>\n
                      2. ARP<\/span><\/li>\n
                      3. BGP<\/span><\/li>\n
                      4. DNS<\/span><\/li>\n<\/ol>\n

                        Correct Answer: 2<\/b><\/p>\n

                        Explanation<\/b><\/p>\n

                        Address Resolution Protocol, or ARP, is used to determine the MAC address associated with an IPv4 address on a local network. When a device needs to send an Ethernet frame to another local IPv4 host, it can use ARP to discover the destination’s Layer 2 address. The resulting mapping can then be stored in an ARP cache for later use. ARP operates within the local network and is different from DNS, which resolves names to addresses. Understanding ARP is important when troubleshooting local IPv4 connectivity and Ethernet communication.<\/span><\/p>\n

                        Question 32<\/b><\/h3>\n

                        Which protocol is commonly used to resolve domain names into IP addresses?<\/b><\/p>\n

                          \n
                        1. DHCP<\/span><\/li>\n
                        2. DNS<\/span><\/li>\n
                        3. SSH<\/span><\/li>\n
                        4. SNMP<\/span><\/li>\n<\/ol>\n

                          Correct Answer: 2<\/b><\/p>\n

                          Explanation<\/b><\/p>\n

                          The Domain Name System, or DNS, translates human-readable domain names into IP addresses and can provide other name-related information. For example, an application can request the IP address associated with a domain name instead of requiring the user to enter an IP address directly. DNS is essential for normal Internet and network application operation. It is different from DHCP, which can provide network configuration information such as IP addresses to clients. Understanding the purpose of DNS helps administrators troubleshoot name-resolution problems separately from basic IP connectivity issues.<\/span><\/p>\n

                          Question 33<\/b><\/h3>\n

                          Which protocol can automatically provide IP configuration information to network clients?<\/b><\/p>\n

                            \n
                          1. DHCP<\/span><\/li>\n
                          2. OSPF<\/span><\/li>\n
                          3. SSH<\/span><\/li>\n
                          4. NTP<\/span><\/li>\n<\/ol>\n

                            Correct Answer: 1<\/b><\/p>\n

                            Explanation<\/b><\/p>\n

                            Dynamic Host Configuration Protocol, or DHCP, allows network clients to obtain configuration information automatically. Depending on the environment, DHCP can provide an IP address, subnet mask, default gateway, DNS server information, and lease duration. This eliminates the need to configure every client manually. DHCP is commonly used on end-user networks, wireless networks, and other environments with many client devices. Administrators troubleshooting client connectivity should understand whether configuration information is being assigned dynamically or configured manually.<\/span><\/p>\n

                            Question 34<\/b><\/h3>\n

                            Which protocol is commonly used to synchronize clocks across network devices?<\/b><\/p>\n

                              \n
                            1. FTP<\/span><\/li>\n
                            2. NTP<\/span><\/li>\n
                            3. SMTP<\/span><\/li>\n
                            4. ARP<\/span><\/li>\n<\/ol>\n

                              Correct Answer: 2<\/b><\/p>\n

                              Explanation<\/b><\/p>\n

                              Network Time Protocol, or NTP, is used to synchronize clocks across network-connected systems. Accurate time is important for logging, troubleshooting, authentication, monitoring, and security operations. Network devices can obtain time information from configured NTP servers and adjust their clocks accordingly. Consistent timestamps make it easier for administrators to compare events across multiple systems. NTP is therefore an important supporting service in network environments. It does not provide IP addressing or routing functions; its primary purpose is maintaining consistent system time.<\/span><\/p>\n

                              Question 35<\/b><\/h3>\n

                              Which command can be used to display active alarms on a Junos device?<\/b><\/p>\n

                                \n
                              1. show system alarms<\/span><\/li>\n
                              2. show system users<\/span><\/li>\n
                              3. show system login<\/span><\/li>\n
                              4. show system route<\/span><\/li>\n<\/ol>\n

                                Correct Answer: 1<\/b><\/p>\n

                                Explanation<\/b><\/p>\n

                                The show system alarms command displays active system alarms on a Junos device. Alarms can indicate conditions that may require administrator attention, including certain hardware, environmental, or system-related problems. Reviewing alarms is an important part of monitoring device health. Administrators can combine this command with hardware, interface, log, and system-status commands to investigate the underlying cause of a problem. The command does not display user sessions or routing information. It is specifically intended to provide visibility into currently active system alarm conditions.<\/span><\/p>\n

                                Question 36<\/b><\/h3>\n

                                Which Junos command can be used to display information about the chassis and its components?<\/b><\/p>\n

                                  \n
                                1. show interfaces<\/span><\/li>\n
                                2. show chassis hardware<\/span><\/li>\n
                                3. show route<\/span><\/li>\n
                                4. show system users<\/span><\/li>\n<\/ol>\n

                                  Correct Answer: 2<\/b><\/p>\n

                                  Explanation<\/b><\/p>\n

                                  The show chassis hardware command provides information about the physical hardware installed in a Juniper device. Depending on the platform, the output can include chassis details, installed modules, routing engines, line cards, and other components. This information can help administrators verify the hardware configuration and investigate hardware-related issues. It is especially useful when documenting a device or confirming whether a particular module is installed. The command is an operational-mode command and does not modify the device configuration.<\/span><\/p>\n

                                  Question 37<\/b><\/h3>\n

                                  Which Junos command can display real-time traffic statistics for an interface?<\/b><\/p>\n

                                    \n
                                  1. monitor interface<\/span><\/li>\n
                                  2. show route<\/span><\/li>\n
                                  3. monitor route<\/span><\/li>\n
                                  4. display interface<\/span><\/li>\n<\/ol>\n

                                    Correct Answer: 1<\/b><\/p>\n

                                    Explanation<\/b><\/p>\n

                                    The monitor interface command provides real-time monitoring information for interface traffic. It can be useful when an administrator wants to observe packets, errors, and traffic activity as it occurs rather than viewing only a static snapshot. Real-time monitoring can help identify unusual traffic patterns or determine whether an interface is actively transmitting and receiving data. Because monitoring commands can continuously display information, administrators should use them carefully and stop the monitoring session when the required information has been collected.<\/span><\/p>\n

                                    Question 38<\/b><\/h3>\n

                                    What is the primary purpose of a firewall filter in Junos OS?<\/b><\/p>\n

                                      \n
                                    1. Manage software licenses<\/span><\/li>\n
                                    2. Filter and control packets<\/span><\/li>\n
                                    3. Assign DNS names<\/span><\/li>\n
                                    4. Synchronize system clocks<\/span><\/li>\n<\/ol>\n

                                      Correct Answer: 2<\/b><\/p>\n

                                      Explanation<\/b><\/p>\n

                                      A firewall filter in Junos OS is used to classify and control packets based on defined match conditions and actions. Filters can examine characteristics such as source and destination addresses, protocols, ports, and other packet attributes. Depending on the configuration, a filter can accept, discard, count, log, or otherwise process matching traffic. Firewall filters can be applied to interfaces or other supported points in the packet-processing path. They are useful for implementing traffic-control policies and protecting network resources according to the administrator’s requirements.<\/span><\/p>\n

                                      Question 39<\/b><\/h3>\n

                                      Which command is used to test whether a Junos configuration is valid before committing it?<\/b><\/p>\n

                                        \n
                                      1. check<\/span><\/li>\n
                                      2. validate<\/span><\/li>\n
                                      3. commit check<\/span><\/li>\n
                                      4. test configuration<\/span><\/li>\n<\/ol>\n

                                        Correct Answer: 3<\/b><\/p>\n

                                        Explanation<\/b><\/p>\n

                                        The commit check command validates the candidate configuration without activating the changes. It is useful when administrators want to identify configuration errors before performing an actual commit. The command checks whether the candidate configuration meets Junos syntax and validation requirements. If errors are found, the administrator can correct them and run the check again. This provides an additional safety step when preparing important configuration changes. Using commit check is especially helpful before making significant modifications because it allows configuration validation without immediately changing the active configuration.<\/span><\/p>\n

                                        Question 40<\/b><\/h3>\n

                                        Which command can be used to display log messages from a Junos device?<\/b><\/p>\n

                                          \n
                                        1. show log<\/span><\/li>\n
                                        2. show route log<\/span><\/li>\n
                                        3. display system logs<\/span><\/li>\n
                                        4. monitor route logs<\/span><\/li>\n<\/ol>\n

                                          Correct Answer: 1<\/b><\/p>\n

                                          Explanation<\/b><\/p>\n

                                          The show log command is used to display messages recorded in Junos log files. System logs can contain valuable information about interface events, authentication activity, configuration changes, system conditions, and other operational events. Administrators use log information extensively when troubleshooting problems because logs can reveal events that are not immediately visible from interface or routing commands. Junos supports multiple log files, and the administrator can specify a particular log file when needed. Reviewing appropriate logs can help establish the sequence and timing of network events.<\/span><\/p>\n

                                           <\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full Juniper JN0-106 Exam Dumps and Practice Test Dumps.   Question 21 Which Junos OS command is used to display the current routing table? show interfaces show route show chassis hardware show system users Correct Answer: 2 Explanation The show route command displays the routing information currently available on a Junos device. The routing […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1648,1647],"tags":[],"_links":{"self":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/17152"}],"collection":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/comments?post=17152"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/17152\/revisions"}],"predecessor-version":[{"id":17153,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/17152\/revisions\/17153"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=17152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=17152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=17152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}