Which command verifies configuration syntax without applying the changes? commit confirmed commit check commit comment commit and-quit.
By default, which character indicates the UNIX shell prompt? # % $ >.
You are considering an upgrade from 19.1R1 and want to ensure that only bug fixes are included.
Which two software versions should you consider in this situation? (Choose two.) 19.3R1-S1 19.3R2 19.1R3 19.1R1-S2.
Which two statements are true about static routes in the Junos OS? (Choose two.) Static routes remain in the routing table until you remove them or until they become inactive. Static routes must have a next hop defined. Static routes are learned by neighboring devices and added to their routing tables. Static routes are defined at the [edit routing-instances] hierarchy.
When multiple users are editing the configuration on a Junos device, what is the default behavior when a user issues a commit command? All valid configuration changes made by all users will take effect. The user's configuration changes are committed; other users' configuration changes are still pending. The user will receive an error message disallowing a commit of the configuration. The user's configuration changes are committed; other users will be exited from configuration mode.
Routing policies contain which two types of statements? (Choose two.) then from default and.
You are connected to your Junos device using an SSH connection to the fxp0 interface. No other interfaces are currently configured beyond their default settings. You commit a configuration that makes the fxp0 interface unreachable from your management network.
In this scenario, how would you re-establish communication with the device? Connect to the console of the device. Establish an SSH connection to the loopback interface. Power off and power on the device. Unplug the network cable and plug it back in.
Referring to the exhibit, which command will cause this event message? request system halt request system logout request system recover request system commit.
What are two benefits realized by the disaggregated Junos OS? (Choose two.) There is increased flexibility to use different control plane versions. The Junos VM becomes hardware-independent and can be deployed on any hypervisor without modification. The architecture facilitates programmability through provisioning the control plane, the data path, and the platform APIs. The platform drivers and forwarding engine are removed from the control plane to increase performance.
Which two features are implemented on the Packet Forwarding Engine? (Choose two.) firewall filters chassis management class of service routing protocol updates.
Referring to the exhibit, which parameter at the end of the command would provide information for troubleshooting purposes? no-timestamp extensive print-ascii no-resolve.
Which parameter of the monitor traffic command should be used with caution when considering storage space on a Junos device? write-file layer2-headers extensive detail.
Which two commands would you use to reset the candidate configuration to the active configuration? (Choose two.) rollback 0 rollback 2 rollback 1 rollback.
Which two statements are true regarding dynamic routing? (Choose two.) Participating devices dynamically learn routing information from each other. Dynamic routing requires more administrative overhead than static routing. Dynamic routing allows a device to automatically reroute traffic around a failure. Dynamic routing is used when absolute control of routing parameters is necessary.
Referring to the exhibit, which dynamic routing protocol would be used for this topology? IGMPv3 RIPng RIP OSPFv2.
Referring to the exhibit, what happens to a packet that has a destination address of 172.17.0.1? The packet is forwarded to the next hop of the management network. The packet is rejected and an ICMP network unreachable message is sent to the source address. The packet is silently discarded. The packet is forwarded to the next hop defined in the default route.
You notice that the terms in your firewall filter are not in the correct order.
What would solve this problem? Use the next term action to force an evaluation of the next term. Use the insert command to reorder the terms within the filter. Use the count parameter to ensure that the terms are evaluated correctly. Use the reject action to change the action of the filter.
Which command will show files stored in the /var/home/lab directory? lab@router> file show lab@router> file list [edit] lab@router# rollback ? lab@router> ls.
Which two statements are true about the default behavior of Junos routing policies? (Choose two.) Routing policies control the flow of routing information going to and from the forwarding table. Routing policies control the flow of routing information going to and from the routing table. Routing policies can export active and inactive routes. Routing policies can export only active routes.
How does the PFE determine how to forward transit traffic? The PFE determines network destinations itself based on the RE's routing table. The PFE uses the forwarding table provided by the RE. The PFE performs a destination lookup based on its own routing table. The PFE uses the routing table provided by the RE.
Referring to the exhibit, what information is provided about the route to 192.168.47.0/24? (Choose two.) There are two active routes to 192.168.47.0/24. There is a single active route to 192.168.47.0/24. There are two next hops available to 192.168.47.0/24. There is a single next hop available to 192.168.47.0/24.
Depending on the device type, Junos is built upon which two OS kernels? (Choose two.) NetBSD FreeBSD Linux OpenBSD.
Which two statements describe PFE functions? (Choose two.) The PFE stores a local copy of the Layer 2 and Layer 3 forwarding tables. The PFE provides access to the CLI and J-Web. The PFE stores the master copy of the Layer 2 and Layer 3 forwarding tables. The PFE implements rate limiting using policers.
Referring to the exhibit, which logical interface is able to forward IP traffic? ge-0/0/2.0 ge-0/0/0 ge-0/0/1.0 ge-0/0/2.
In your configuration, an interface contains multiple IP addresses belonging to the same subnet. You want to identify the IP address to use for packets sent to hosts on the same subnet.
Which parameter would you use to accomplish this task? patch primary preferred relative.
What are two modes of unicast reverse path forwarding? (Choose two.) strict high low loose.
You successfully established a BGP session with a peer, but do not see any routes learned from the peer.
What would cause this problem? A routing policy is blocking BGP from learning the routes. A security policy is blocking BGP from learning the routes. Unicast reverse-path-forwarding is blocking BGP from learning the routes. The firewall filter is blocking BGP from learning the routes.
What are two services performed by the Packet Forwarding Engine? (Choose two.) to process transit traffic to handle processes that control the device's interfaces to maintain the routing tables to implement stateless firewall filtering.
Which command displays all IPv4 routes in the default routing instance? show route table inet.1 show route table inet6.0 show route table inet.2 show route table inet.0.
Which statement is true about the orlonger route-filter match type? All routes within the specified prefix that are longer than or equal to the given prefix are considered a match. All routes within the specified prefix that are longer or equal to the given prefix up to a defined acceptable prefix length are considered a match. All routes within the specified prefix that are longer than the given prefix up to a defined acceptable prefix length are considered a match. All routes within the specified prefix that are longer than the given prefix are considered a match.
What are two configurable physical interface properties? (Choose two.) protocol family address MTU link mode.
What is the maximum number of configurations, by default, that are recoverable using the rollback command? 50 25 100 75.
What is the purpose of the load merge command? to look for a replace tag in the configuration you load to combine the current configuration with the configuration you load to add or delete variables from the configuration based on the contents of a specified patch file to completely overwrite the current configuration with the configuration you load.
What is the purpose of the discard action of a firewall filter? The system silently drops the packet. The system evaluates the next term in the policy. The system drops the packet and logs the entry. The system drops the packet and sends an ICMP message.
Which keystroke combination allows users to move the cursor to the end of the command line without deleting text? Ctrl + a Ctrl + e Ctrl + w Ctrl + u.
Which two statements describe IPv4 default behavior for BGP? (Choose two.) All active BGP routes are exported to configured EBGP neighbors. All BGP routes are exported to configured EBGP neighbors. All BGP routes are imported into the inet4.0 routing table. All BGP routes are imported into the inet.0 routing table.
Referring to the exhibit, which action would synchronize the local router's clock with the NTP server? Issue the set date ntp operational command. Configure the correct NTP trusted key using the set trusted-key <key-value> configuration command under the [edit system ntp] hierarchy. Configure the NTP server using the set boot-server 172.25.11.254 configuration command under the [edit system ntp] hierarchy. Reboot the router.
You have configured an SRX Series device for the first time. When you commit your configuration, the Junos OS notifies you that you cannot yet commit your configuration.
Which configuration step must you complete? date/time root authentication security policies hostname.
Which two interfaces are considered physical interfaces? (Choose two.) ge-0/0/0 et-7/1/4.0 et-3/0/0:0.501 xe-10/2/1.
Which configuration parameter on a Junos device modifies the default next-hop resolution behavior of a static route? resolve no-readvertise passive preference.
Referring to the exhibit, which two statements are correct? (Choose two.) The memory utilization is 28%. The memory utilization is 72%. The 15 minute CPU load average is 99%. The CPU kernel utilization is 1%.
Which two statements describe the connection between the control plane and the forwarding plane? (Choose two.) Exception traffic is preferred over control traffic during congestion. A rate limiter is configured by default. Control traffic is preferred over exception traffic during congestion. No rate limiter is configured by default.
When a system process encounters an error, how does the Junos OS protect other processes from being impacted? Each process operates in its own shared memory space. The Junos OS executes only one process at a time. Each routing protocol runs as an individual process. The Junos OS executes multiple processes simultaneously.
Which next-hop interface will be used to reach the 10.21.14.16 destination as shown in the exhibit? ge-0/0/0.0 ge-0/0/2.0 ge-0/0/1.0 ge-0/0/3.0.
What is the next hop for a packet destined to 192.168.80.98 as shown in the exhibit? 172.18.6.1 172.25.11.254 172.18.7.1 192.168.11.2.
Which statement is true about the command shown in the exhibit? There needs to be a ; after top for the command to be accepted as a valid command. Only top should be used, no other options are allowed on the same line. The command shown in the exhibit would be accepted as a valid command. If you replace top with up command, it becomes valid.
In this scenario, which IP addresses would term-One accept? IP addresses that are part of the 172.35.0.0/16 network only. IP addresses that are part of the 172.35.0.0/16 network and IP addresses that are in the 172.35.0.0/16 and 172.36.0.0/16 subnets. IP addresses that are in a subnet of 172.35.0.0/16 network, but not IP addresses that are part of the 172.35.0.0/16 network itself. addresses that are part of the 172.35.0.0/16 network and IP addresses that are in subnets of 172.35.0.0/16 network.
You are troubleshooting an issue and want to monitor syslog in real time.
Which operational command accomplishes this task? show log messages monitor start messages monitor traffic interface fxp0.0 show log messages | refresh 1.
You issue the request system zeroize command.
Which statement is correct in this scenario? All data files are deleted and all configuration settings are returned to factory defaults. All data files remain unchanged but all configuration settings are returned to factory defaults. Disk space is freed by rotating log files and a proposed list of files to delete is presented. All data files are deleted and the configuration settings remain unchanged.
Referring to the exhibit, which command was issued to generate the output? show chassis environment show chassis hardware show chassis routing-engine show chassis fpc.
What are two default password requirements on devices running Junos OS? (Choose two.) Passwords must contain at least one special character. Alphanumeric character classes must be used. An expiration date must be set. Passwords must be at least six characters in length.
Which parameter would you use to prohibit the redistribution of a static route used for management traffic? discard passive reject no-readvertise.
Which two keystrokes are used to auto-complete commands? (Choose two.) Esc Spacebar Tab End.
Which two conditions must exist in a Junos device for traffic to transit the device to a specific destination? (Choose two.) A routing table entry for that destination must exist. A firewall filter must exist to allow traffic to reach that destination. A forwarding table entry for that destination must exist. A routing policy must be in place on the device.
You are attempting to upgrade the Junos OS on your device, but there is not enough space to complete the upgrade.
Which parameter, added to the request system softwareadd command, would solve the problem? validate force no-validate no-copy.
Referring to the exhibit, what does the number inside the square brackets represent? route preference metric protocol reference number local preference.
What are three functions of the RE? (Choose three.) to monitor the chassis to maintain the forwarding tables to implement policing to enforce stateless firewall filters to manage the PFE.
What information would you find using the CLI help function? (Choose two.) Junos technical publications explanation of traceoption events tip for the day explanation of specific system log error messages.
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