JNCIA-Junos Voucher Assessment Practice Test

Browse all practice questions for the JNCIA-Junos Voucher Assessment Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

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Configuring Static MAC Addresses: A Quick GuideAt which hierarchy would you configure a static MAC address for interface ge-0/0/0?Connecting to a Junos Device When SSH FailsYou are connected to your Junos device using an SSH connection to the txp0 interface. What is the best way to reestablish communication with the device if no other interfaces are configured?Discover the Easy Shortcut to Move Your Cursor on a Command LineWhich keystroke combination allows users to move the cursor to the end of the command line without deleting any text?Discover the Right Command to Monitor Syslog in Real TimeYou are troubleshooting an issue and want to monitor syslog in real time. Which operational command accomplishes this task?Explore the Benefits of the Disaggregated Junos OSWhat are two benefits of the disaggregated Junos OS?Explore the Key Role of Juniper's Packet Forwarding EngineWhat is a primary function of the PFE?Exploring the Key Functions of the Routing Engine in Juniper DevicesWhich three functions are performed by the RE?Exploring the Maximum Number of Rollback Files in Junos DevicesWhat is the maximum number of rollback files a Junos device can store?Exploring the Output of the Show Route Forwarding-Table Command in Junos OSWhat does the output of the show route forwarding-table command display?How to Save Configuration Files on Junos RoutersYou are in configuration mode at the top of the hierarchy. How would you save your configuration to a file on the router?How to Upgrade Junos OS Without DisruptionWhat command should be executed to upgrade between two different Junos OS releases with no disruption to the control plane?Learn how to change IP addresses smoothly in Junos configurationsWhich command will change the 172.16.10.1/24 IP address to 172.6.100.1/24 IP address?Learn how to check SSH status on Junos devices effectivelyWhich command would you use to view the status of SSH on a device?Learn How to Validate Your Junos Configuration Syntax Using the Commit Check CommandWhich command allows you to check the syntax of your configuration without activating it?Understand Why SSH is the Go-To Protocol for Secure ConnectionsWhich protocol is commonly used for establishing a secure connection over the internet?Understanding Backup Scenarios for Junos OS Configuration ArchivalWhich two backup scenarios exist for enabling configuration archival on a Junos OS device?Understanding BGP as an Exterior Gateway ProtocolWhat is an example of an exterior gateway protocol (EGP)?Understanding Chassis Clusters in Junos for Network ReliabilityWhat does the term 'chassis cluster' refer to in Junos?Understanding Configuration Archiving in Junos OSWhich two methods are supported by the Junos OS to automatically archive your configuration upon commit? (Choose two.)Understanding Default Password Requirements on Junos DevicesWhat are two default password requirements on Junos devices? (Choose two.)Understanding Dynamic Routing and Its Impact on Network ResilienceWhich two statements are true regarding dynamic routing?Understanding Examples of Transit Traffic in NetworkingWhat are two examples of transit traffic?Understanding How Junos Devices Handle Packets Without Matching EntriesWhat happens when a packet enters a Junos device with no matching destination entry in the forwarding table?Understanding How Many IP Addresses You Can Configure on a Junos InterfaceHow many IP addresses can be configured on a given interface?Understanding How Routers Forward Multicast PacketsWhat type of address do routers use to forward multicast packets?Understanding How the Commit Command Activates Changes in Junos ConfigurationWhich command is used to activate the changes made in a configuration?Understanding How the PFE Handles Layer 2 and Layer 3 TrafficHow does the PFE handle Layer 2 and Layer 3 traffic?Understanding How to Manage Route Advertisement with the No-Readvertise ParameterWhich parameter would you use to prohibit the redistribution of a static route used for management traffic?Understanding How to Reorder Firewall Filters Using CommandsWhat command would you use to reorder firewall filters that are not in the correct order?Understanding Internal Routers in OSPF and Their RoleIn OSPF, what is the term for the routers that exchange routing information within the same area?Understanding Internet Protocol Security: The Role of IPsec in Network SecurityWhat does the term 'IPsec' refer to?Understanding Key Insights from Routing to 192.168.47.0/24What information can you derive from the route to 192.168.47.0/24? Choose Two.Understanding Multi-User Mode on Junos DevicesWhat is the result of the command that causes a device to boot in a multi-user mode at the configuration prompt?Understanding OSPF Routing: Why Link-State is Key to Finding the Best PathWhat type of routing does OSPF use to determine the best path to a destination?Understanding OSPF: The Link-State Protocol That Transforms NetworkingWhich three statements describe OSPF?Understanding Packet Management When a Junos Interface is DownWhat happens to packets when an interface on a Junos device is administratively down?Understanding Route Metrics in Junos NetworkingWhat does the number inside the square bracket represent in route metrics?Understanding Route Preference in Junos DevicesA Junos device is configured with multiple routing protocols to the same destination prefix. By default, which route will be active in the forwarding table?Understanding Routing Policies with Set and From Statements in Junos OSRouting policies contain which two types of statements?Understanding System Interfaces on JunosHow do you view the currently configured system interfaces?Understanding the 'commit confirmed' Command in Junos OSWhat is the purpose of the 'commit confirmed' command in Junos OS?Understanding the 'Request System Reboot' Command in Junos OSWhat does the command 'request system reboot' do?Understanding the Best Network Tool for Secure Terminal ConnectionsWhat network tool would you use to open a secure terminal connection from a Junos device to another device?Understanding the Best Software Upgrade Options for JNCIA-JunosWhich two software versions should you use for an upgrade if you want to include only bug fixes from version 19.1R1? Choose Two.Understanding the Command for Displaying Interface Statistics on Junos DevicesWhich command is used to display interface statistics on a Junos device?Understanding the Command for Interface Status in JunosWhich command produced the output showing interface status?Understanding the Command for Operational Status in JunosWhat command provides operational status of the system?Understanding the Command for Screen Length in Junos DevicesWhich command allows for a specific number of lines to display in the operational mode of a Junos device?Understanding the Command to Check System Logs in JunosWhich command is used to check the system logs in Junos?Understanding the Command to Log Changes for SecurityTeam on Junos OSWhich command should be used to ensure changes are logged for SecurityTeam on a Junos OS device?Understanding the Command to Show Files in the /var/home/tab DirectoryWhat command will show files stored in the /var/home/tab directory?Understanding the Compatibility of Junos OS with Juniper HardwareWhich statement about the Junos OS is accurate?Understanding the Critical Role of the Packet Forwarding Engine in NetworkingWhich statement correctly describes the role of the PFE?Understanding the Default Hostname of Your RouterWhen you first log in to a router, how does the router indicate that factory defaults are being used?Understanding the Default Routing Table for IPv6 Unicast Routes in Junos OSWhat routing table is used for IPv6 unicast routes by default?Understanding the Disaggregated Architecture of Junos OSWhat distinguishes the disaggregated architecture of Junos OS?Understanding the Dual Modes of Unicast Reverse Path ForwardingWhat are two modes of unicast reverse path forwarding?Understanding the Essential Function of the 'Show Version' CommandWhat essential function does the 'show version' command perform?Understanding the Essentials of ISSU for Junos DevicesWhat are three necessary actions for performing a unified in-service software upgrade (ISSU) on a Junos device?Understanding the Function of the BGP Neighbor CommandWhat is the function of the 'bgp neighbor' command?Understanding the Functions of the Packet Forwarding Engine in Juniper RoutersWhat are two functions of the PFE?Understanding the Impact of the 'Request System Zeroize' Command in Junos OSYou issue a "request system zeroize" command. Which statement is correct in this scenario?Understanding the implications of the write-file parameter for network monitoringWhich parameter must be used with caution for storage space when executing the monitor traffic command?Understanding the Importance of Exception Traffic Handling in NetworkingWhat is a key characteristic of exception traffic?Understanding the Importance of TACACS+ Authentication Order in Network SecurityWhat is the consequence of configuring the system authentication order with TACACS+ if the server is not available?Understanding the Importance of the Commit History Command in JunosIn Junos, which command would you use to review the history of configuration changes?Understanding the Importance of the Verbose Parameter in TroubleshootingWhich parameter at the end of a command would provide information for troubleshooting purposes?Understanding the inet Protocol Family for Junos DevicesWhich protocol family must be configured prior to assigning an IP address to an interface on a Junos device?Understanding the J-Web Interface in JunosWhat is the J-Web interface in Junos?Understanding the Key Benefits of Dynamic RoutingWhat is the primary advantage of using dynamic routes?Understanding the Key Differences Between Static and Dynamic RoutesWhat is the difference between a static route and a dynamic route?Understanding the Key Features of the Packet Forwarding EngineWhich two features are implemented on the Packet Forwarding Engine?Understanding the Key Prerequisites for an Effective ISSU on Junos DevicesTo perform an ISSU on a Junos device, what is a prerequisite related to the Routing Engine?Understanding the Longer Route-Filter Match Type in NetworkingWhat statement is true about the longer route-filter match type?Understanding the Minimum Configuration for Junos Devices to Respond to SNMP RequestsWhat is the minimum configuration necessary for a Junos device to respond to SNMP requests?Understanding the Packet Forwarding Engine in NetworkingWhich characteristic is true for the Packet Forwarding Engine?Understanding the Preferred Parameter for IP Address in NetworkingIn your configuration, how can you identify the preferred IP address for packets sent to hosts on the same subnet?Understanding the Role of IPsec in NetworkingWhat is the main use of IPsec in networking?Understanding the Role of OSPF in Junos Dynamic RoutingWhich protocol is primarily used for dynamic routing in Junos devices?Understanding the Role of Port 179 in BGP CommunicationWhat is the standard port for BGP?Understanding the Role of Redundant Topology in Chassis ClustersWhat type of network topology is typically used with a chassis cluster?Understanding the Role of Router LSA in OSPF NetworkingIn OSPF, which LSA type is used to describe the router's links to other routers?Understanding the Role of the Loopback Interface in NetworkingWhat is a 'loopback interface'?Understanding the Role of the Packet Forwarding Engine in Junos ArchitectureWhat role does the PFE (Packet Forwarding Engine) play in the Junos device architecture?Understanding the Role of Trunk Ports in NetworkingWhat is the purpose of a trunk port in switching?Understanding the Role of Virtual Routers in Junos OSWhich statement is true about a virtual router routing instance?Understanding the Role of Virtual Routing Instances in JunosWhich statement accurately describes the function of virtual routing instances in Junos?Understanding the Rollback Command in JunosWhich command should you use to discard all changes made and return to the active configuration in Junos?Understanding the Rollback Function in Junos OSWhat is the default action of the Junos OS when a configuration rollback is performed?Understanding the Rollback Function in Junos OSWhat does the term 'rollback' refer to in Junos OS?Understanding the root user prompt on Junos devicesWhat is the initial prompt displayed when logging in as the root user on a Junos device?Understanding the Routing Table Used for Multicasting Forwarding CacheWhich routing table is used for multicasting forwarding cache?Understanding the Show Configuration Command in JunosWhich command would you use to display the current configuration hierarchy on a Junos device?Understanding the Show Interfaces Command in JunosWhich command would be used to display the current interface statistics?Understanding the show interfaces Command in Junos for Network MonitoringWhich command helps in monitoring system performance and interface status in Junos?Understanding the Show Route Command in Junos OSWhich command is used to display the active routing table in Junos OS?Understanding the show route Command on Junos DevicesWhich command would you use to view the active routing table on a Junos device?Understanding the Super-User Class in Junos OSWhich system-defined user class is able to perform all operations on a device?Understanding the Types of Link-State Advertisements in OSPFWhat are the types of link-state advertisements (LSAs) in OSPF?Understanding the User Classes Required to Execute Clear Commands in JunosWhat is the minimum system-defined user class required to issue clear commands in Junos?Understanding What Happens to Traffic from the 10.10.10.4 IP AddressWhat happens when traffic is received from the 10.10.10.4 IP address?Understanding What Happens When Ping Packets Hit Your Router's Management InterfaceWhat occurs when ping packets are sent to the management interface address of the local router?Understanding Which Junos Logical Interface Forwards IP TrafficWhich logical interface is able to forward IP traffic?Understanding Why Your BGP Session Isn't Learning RoutesYou successfully established a BGP session with a peer but do not see any routes learned. What could be causing this issue?What Does BGP Really Do for Internet Routing?What is the primary function of BGP?What Happens When a BGP Route Doesn't Match?If a BGP route does not match any term in the applied routing policy, what is the action taken by the router?What to Check Before Rebooting Your SRX300 Series DeviceWhat should you confirm before rebooting an SRX300 series device?What You Need to Know About 'X' Releases of Junos OSWhat defines an "X" release of the Junos OS?Why the IP Protocol is Essential for Junos Interfaces to FunctionWhat type of protocol must be assigned to an interface on a Junos device for it to be operational?
More practice questions

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  • Which parameter is NOT considered in selecting the best path by routing protocols?
  • Which command is used to load the rescue configuration?
  • What does a static route in Junos specify?
  • Which command is commonly used to monitor real-time traffic on an interface?
  • Which command would you input to notify a user when changes are committed to the configuration of a networking device?
  • What does 'QoS' stand for, and its primary purpose?
  • What is responsible for processing multicast transit traffic?
  • In Junos, which layer is primarily responsible for determining how packets are forwarded?
  • Which command provides detailed information about a specific interface's operational state?
  • When you commit your configuration for the first time on an SRX Series device, what step is required before committing?
  • Which keystroke is used to auto-complete user-defined variables in the Junos CLI?
  • When using the command show log messages | match "error|kernel|panic", what does the output represent?
  • Which statement is true regarding SNMP traps from the given IP address?
  • What command would you use to check the status of the routing protocols on a Junos device?
  • Which two statements describe PFE functions?
  • What does the command 'show log security' display?
  • What does the acronym SPU stand for in Junos?
  • What is the default route preference for OSPF internal?
  • What command would show you the status of a BGP session?
  • What are two configurable physical interface properties? (Choose two.)
  • What is the purpose of 'policy statements' in Junos?
  • Which two commands can reset the candidate configuration to the active configuration? (Choose two.)
  • Which command is used to enable routing on an interface in Junos OS?
  • How does a routing protocol select a best path?
  • When you receive a shutdown message while working on a Junos Device, what can stop the shutdown process?
  • How can you set the display to show 40 lines in the terminal when logged into a Junos device?
  • Which protocol is the main routing protocol used in most IP networks today?
  • In a Junos device, what does the command 'show version' provide?
  • Which parameter, added to the request system software add command, would solve the problem of insufficient space during a Junos OS upgrade?
  • In the Junos 14.2R3.2 release versioning, what is the correct format?
  • What is the significance of 'src-destination NAT'?
  • Which two platforms are supported in both physical and virtual form factors? Choose TWO.
  • What command is used to replace the current configuration with a new one?
  • What is the primary role of the Routing Engine in a Junos device?
  • How is multicast traffic delivered in a network?
  • What does the term "access control list" refer to in networking?
  • In which directory are the trace option files stored by default?
  • The monitor traffic command provides access to which utility?
  • Which key could you use to auto-complete a command in the Junos CLI?
  • What does 'RFC' stand for in networking?
  • You notice traffic destined to 172.31.17.0/24 is traversing an OSPF path rather than BGP path. What is causing this behavior?
  • What does the command 'show route' display in Junos?
  • What configuration parameter on a Junos device allows you to change the default behavior for next-hop resolution of a static route?
  • What is the purpose of the discard action of a firewall filter?
  • What is the purpose of a default gateway in a network?
  • Which statements best describe the relationship between the control plane and forwarding plane? Choose Two.
  • Which command would you use to view active firewall filters?
  • What command would you use to list all interface information in Junos?
  • What happens if the TACACS+ server is available and rejects the user’s credentials in a Junos OS device?
  • When upgrading an SRX300 Series device, which two steps are crucial?
  • Which command would you use to view the current system software version on a Juniper device?
  • What is the function of a loopback interface?
  • Which command is used to verify configuration syntax without actually applying the changes?
  • Which command can be used to test NAT configurations?
  • Which three statements are true about the PFE?
  • What does the command 'set' accomplish in Junos?
  • Which command can be used to verify interface status quickly?
  • What happens if no route is found in the BGP routing table?
  • In Junos, which command would you use to save your configuration changes?
  • What role does the control plane serve in Junos?
  • What happens when a route does not match any user-configured policies?
  • How do you enable SSH on a Junos device?
  • In Junos configuration, what does the term 'commit confirmed' mean?
  • What does OSPF use to scale its routing domain effectively?
  • How can routes be redistributed between routing protocols?
  • What does 'OSPF cost' determine in the protocol's metric?
  • What feature must be enabled prior to performing a unified in-service software upgrade?
  • What is the purpose of the 'ping' command in Junos?
  • In Junos, what is the role of a routing protocol?
  • In Junos OS, what does MTU stand for and what does it define?
  • Which two keystrokes will auto-complete a command in a Junos CLI? (Choose two.)
  • What is the primary function of commits in Junos?
  • What kind of services does the PFE provide?
  • What is the maximum number of configurations, by default, that can be recovered using the rollback command in Junos?
  • When multiple users are editing the configuration on a Junos device, what is the default behavior when a user issues a commit command?
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