JNCIA-JUNOS

Q1. Which two statements are correct regarding Layer 2 network switches? (Choose two.)

A. Switches are susceptible to traffic loops.

B. Switches flood broadcast traffic.

C. Switches do not learn MAC addresses.

D. Switches create a single collision domain.

A. Switches are susceptible to traffic loops.;

B. Switches flood broadcast traffic.

Q2. How many usable hosts are in a /24 subnet mask?

A. 250

B. 254

C. 255

D. 256

B. 254

Q3. What are two fiber-optic connector types? (Choose two.)

A. LC

B. RJ-45

C. SC

D. BNC

A. LC;

C. SC

Q4. Which two characteristics apply to TCP? (Choose two.)

A. TCP guarantees fixed latency for application flows.

B. TCP broadcasts datagrams by default on Ethernet.

C. TCP uses a three-way handshake to establish a connection.

D. TCP provides reliable, ordered delivery using sequence numbers.

C. TCP uses a three-way handshake to establish a connection.;

D. TCP provides reliable, ordered delivery using sequence numbers.

Q5. Click the Exhibit button. Which statement is correct when Router R1 receives a packet from User A destined for User B as shown in the exhibit?

A. Router R1 replaces the destination IP address in the packet with the IP address of Router R2.

B. Router R1 leaves the packet unchanged.

C. Router R1 replaces the destination MAC address in the packet with the MAC address of Router R2.

D. Router R1 replaces the destination MAC address in the packet with the MAC address of User B.

C. Router R1 replaces the destination MAC address in the packet with the MAC address of Router R2.

Q6. You asked a network engineer to configure a new logical interface on a Juniper router. The interface must use the fourth usable host address from the 172.16.40.128/29 subnet. Which IP address is correct in this scenario? A. 172.16.40.135 B. 172.16.40.132 C. 172.16.40.130 D. 172.16.40.131

B. 172.16.40.132

Q7. You are asked to subnet the broadcast domains but need to support 50 hosts. In this scenario, which subnet mask would satisfy this requirement? A. /26 B. /27 C. /28 D. /29

A. /26

Q8. Which IPv4 address and subnet mask combination represents a point-to-point link with only two usable host addresses? A. 192.168.1.0/30 B. 192.168.1.0/29 C. 192.168.1.0/24 D. 192.168.1.0/28

A. 192.168.1.0/30

Q9. What is the maximum number of IP addresses that would be assigned to hosts in the 192.168.1.0/24 network? A. 24 B. 32 C. 128 D. 254

D. 254

Q10. What are two characteristics of IPv6 addressing? (Choose two.) A. The IPv6 address is represented by a 128-bit address B. The IPv6 header automatically includes a checksum. C. IPv6 uses ARP to discover neighboring devices. D. IPv6 addresses that begin with fe80 are not routable.

A. The IPv6 address is represented by a 128-bit address; D. IPv6 addresses that begin with fe80 are not routable.

Q11. How are the Routing Engine and the Packet Forwarding Engine components connected? A. They use shared memory access. B. They use external breakout cables. C. They use an MPLS connection. D. They use an internal Ethernet link.

D. They use an internal Ethernet link.

Q12. Which two statements are correct about Junos OS? (Choose two.) A. Junos OS provides the ability to run unsigned third-party binaries. B. Junos OS provides modularization of software processes. C. Junos OS combines security and routing policies. D. Junos OS separates the control plane and the forwarding plane.

B. Junos OS provides modularization of software processes.; D. Junos OS separates the control plane and the forwarding plane.

Q13. An administrator wants to set up a remote user authentication service for the many users that access a Juniper security device. In this scenario, what are two supported authentication protocols? (Choose two.) A. RADIUS B. TACACS+ C. SHA D. IPsec

A. RADIUS; B. TACACS+

Q14. Which two statements are examples of exception traffic? (Choose two.) A. An IP packet with the Router Alert option set in the IP options field. B. SSH traffic to the local Junos OS device. C. An IP packet that has the IP precedence CoS bits of 111 in the ToS field. D. SSH traffic to a remote server on the Internet.

A. An IP packet with the Router Alert option set in the IP options field.; B. SSH traffic to the local Junos OS device.

Q15. You power on a new MX Series router for the first time and connect to the console. You notice that no transit interfaces are passing traffic. In this scenario, which statement is correct? A. All interfaces are enabled with DHCP client enabled. B. All interfaces are enabled and have an IP address of 10.0.0.1. C. The interfaces are configured as Layer 2 trunk ports. D. The interfaces are not configured.

D. The interfaces are not configured.

Q16. Which two characteristics describe Junos OS software? (Choose two.) A. Junos OS is a monolithic code base. B. Junos OS supports automation features. C. Junos OS runs only on routers. D. Junos OS uses a modular architecture with independent processes.

B. Junos OS supports automation features.; D. Junos OS uses a modular architecture with independent processes.

Q17. What are two characteristics of transit traffic in Junos OS? (Choose two.) A. It includes routing protocol packets. B. It is traffic destined for the Routing Engine. C. It does not require control plane processing. D. It is forwarded by the Packet Forwarding Engine.

C. It does not require control plane processing.; D. It is forwarded by the Packet Forwarding Engine.

Q18. What are two functions of the Routing Engine? (Choose two.) A. It evaluates firewall filters for transit traffic. B. It runs Junos OS. C. It processes all management traffic. D. It processes transit traffic.

B. It runs Junos OS.; C. It processes all management traffic.

Q19. Which interface type prefix represents a 10-Gigabit Ethernet interface? A. ge B. xe C. et D. fe

B. xe

Q20. A network administrator must set up the initial configuration of the out-of-band management interface on a new Juniper router to ensure management traffic is isolated from the default routing table (inet.0). In this scenario, which configuration step is required to accomplish this task in Junos OS? A. Configure an IP address on interface ge-0/0/0.0 and enable ethernet-switching family. B. Configure the lo0.0 loopback interface with a management IP and apply it to the [edit system services] hierarchy. C. Assign an IP address to the me0.0 interface and set the routing-options to instance-type virtual-router. D. Assign an IP address to interface fxp0.0 or em0.0 and use the command set system management-instance to enable the management routing instance.

D. Assign an IP address to interface fxp0.0 or em0.0 and use the command set system management-instance to enable the management routing instance.

Q21. Click the Exhibit button. The MX204 has 12 built-in ports. Referring to the exhibit, to which interface does the arrow point? A. xe-0/2/7 B. xe-0/0/7 C. xe-0/1/7 D. xe-0/1/6

C. xe-0/1/7

Q22. Which two functions are performed by the PFE? (Choose two.) A. It processes exception traffic. B. It forwards incoming traffic. C. It creates the forwarding table. D. It creates the routing table.

A. It processes exception traffic.; B. It forwards incoming traffic.

Q23. Which two statements correctly describe how Junos OS handles control and forwarding functions? (Choose two.) A. The Packet Forwarding Engine (PFE) forwards packets based on forwarding tables received from the Routing Engine. B. Exception traffic is always dropped by the Packet Forwarding Engine without being inspected. C. Transit traffic is processed by the Routing Engine to ensure high-speed packet forwarding. D. The Routing Engine (RE) is responsible for maintaining routing tables and running routing protocols.

A. The Packet Forwarding Engine (PFE) forwards packets based on forwarding tables received from the Routing Engine.; D. The Routing Engine (RE) is responsible for maintaining routing tables and running routing protocols.

Q24. A security policy requires that a user account be created for auditing purposes. This user should only view configuration and operational data without making any changes. Which predefined login class would satisfy this requirement? A. operator B. unauthorized C. read-only D. super-user

C. read-only

Q25. When troubleshooting a problem, you issue the following commands in sequence: 1. show chassis alarms 2. show chassis fpc 3. show chassis fpc detail 4. show chassis errors fpc-slot 0 In this scenario, what happens when you press the up arrow key twice at the prompt? A. The show chassis fpc command is displayed at the prompt. B. The show chassis errors fpc-slot 0 command is displayed at the prompt. C. The show chassis alarms command is displayed at the prompt. D. The show chassis fpc detail command is displayed at the prompt.

D. The show chassis fpc detail command is displayed at the prompt.

Q26. Click the Exhibit button. You have configured multiple authentication methods on your Junos device, including RADIUS, TACACS+, and local user accounts. A user attempts to log in, but the RADIUS server is unavailable. Referring to the exhibit, which statement is correct? A. The user is prompted to select a different authentication method. B. The login attempt fails immediately. C. Junos will continue to attempt to authenticate with the RADIUS server until it responds. D. Junos attempts the next configured authentication method.

D. Junos attempts the next configured authentication method.

Q27. You are creating a new user account using a predefined login class on a Junos device. The account should be able to run operational mode commands such as show interfaces and ping, but should not be allowed to change or commit configuration. Which login class should you assign to this user? A. maintenance B. read-only C. super-user D. operator

D. operator

Q28. What information would you find using the CLI help command? A. a URL for accessing the technical documentation B. message of the day C. hyperlinks for remediation actions D. an explanation for specific system log error messages

D. an explanation for specific system log error messages

Q29. What does the Junos CLI prompt indicate when it ends with a hash symbol (#)? A. The user is in operational mode. B. The user is in configuration mode. C. The user is in shell mode. D. The user is in recovery mode.

B. The user is in configuration mode.

Q30. Click the Exhibit button. Which command displays the output in the format shown in the exhibit? A. show configuration | display inheritance B. show configuration | display set C. show configuration D. show configuration | display detail

B. show configuration | display set

Q31. You committed a new configuration on a Junos router, but users report connectivity issues. You must quickly restore the previous working configuration without manually editing the candidate configuration. Which command should you use to load the required configuration into the candidate configuration? A. rollback 0 B. show | compare rollback C. rollback 1 D. load override

C. rollback 1

Q32. Which command would compare the candidate configuration with the active configuration before committing the changes? A. [edit] user@router# show | compare B. [edit] user@router# rollback 0 C. user@router> show configuration | compare rollback 0 D. user@router> show configuration | compare

A. [edit] user@router# show | compare

Q33. You successfully committed a configuration change. You now realize an issue exists and must revert back to the previous configuration. Which command entered in configuration mode will accomplish this task when committed? A. show | compare B. save config C. rollback 0 D. rollback 1

D. rollback 1

Q34. You are using the factory default configuration on a new Juniper router. You must successfully commit the configuration and activate the device. Which component must be configured before Junos OS will allow you to accomplish this task? A. a system hostname B. a root-authentication password C. at least one logical interface with family inet enabled D. a management IP address on the fxp0 interface

B. a root-authentication password

Q35. You are configuring a new router and want to ensure that you can recover from future misconfigurations. In this scenario, what should you do after completing the initial configuration? A. Update the firmware on the router. B. Save the configuration as rollback 0. C. Create a rescue configuration. D. Enable automatic rollback after 10 minutes.

C. Create a rescue configuration.

Q36. Your switch01 device lost network connectivity after a configuration change. You must recover the device to a known working state using the rescue configuration that was previously saved. The device is only accessible using the console. In this scenario, which command sequence will successfully restore the rescue configuration? A. [Khong trich xuat duoc text tu PDF; option la hinh/code block] B. user@switch01> request system configuration rescue delete user@switch01> reboot C. [Dap an dung nen la chuoi lenh: configure -> rollback rescue -> commit] D. [Khong trich xuat duoc text tu PDF; option la hinh/code block]

C. [Dap an dung nen la chuoi lenh: configure -> rollback rescue -> commit]

Q37. You must add a large hierarchical configuration to your Junos device. You also want to completely replace the existing candidate configuration with a new configuration file. Which command would allow you to accomplish these tasks? A. load merge terminal B. load override terminal C. load factory default D. load set terminal

B. load override terminal

Q38. Which two statements are correct about logical units? (Choose two.) A. A physical interface can host multiple logical units. B. Logical units can have multiple IP addresses. C. Logical units are used only for management interfaces. D. A physical interface can host only one logical unit.

A. A physical interface can host multiple logical units.; B. Logical units can have multiple IP addresses.

Q39. Your system administrator notified the infrastructure team that all server NICs will be moving to jumbo frames. All of the NICs used by servers are 1 gigabit. The starting frame size will be 4K. The exact frame size may change depending on testing results. In this scenario, which choice would provide a flexible solution? A. Create a group that adjusts MTU size on 1 gigabit interfaces and apply at the interfaces level. B. Apply the MTU to each interface family for each 1 gigabit interface. C. Set the app-engine compute-cluster Ethernet MTU size for the Junos VM. D. Use the system internet-options path-mtu-discovery to dynamically adjust MTU.

A. Create a group that adjusts MTU size on 1 gigabit interfaces and apply at the interfaces level.

Q40. You manage a Junos device with 20 interfaces. Each interface requires the same description and MTU setting. Which configuration approach would reduce repetitive commands and ensure consistency? A. Use the wildcard delete command to remove duplicate settings. B. Configure each interface individually. C. Use a configuration group. D. Use search and replace to apply settings across interfaces.

C. Use a configuration group.

Q41. You want to redeploy a Junos device by clearing the existing configuration and resetting it to factory defaults. In this scenario, which command would help to accomplish this task? A. show system storage B. request system storage cleanup dry-run C. request system zeroize D. request system storage cleanup

C. request system zeroize

Q42. According to HPE Juniper Networking, what are two recommended tasks you should perform before upgrading Junos OS on a device? (Choose two.) A. Delete all rollback configurations. B. Verify available storage space using the show system storage command. C. Disable all interfaces to prevent traffic during the upgrade. D. Back up the active current configuration.

B. Verify available storage space using the show system storage command.; D. Back up the active current configuration.

Q43. Your team alerts you that users connected to ge-0/0/5 are experiencing intermittent slowness. You log in to the switch and want to see live, real-time traffic updates for that interface to determine whether the link is being over-utilized. Which monitoring command should you use in this scenario? A. show chassis hardware B. monitor interface ge-0/0/5 C. show interfaces terse D. show interfaces ge-0/0/5 extensive

B. monitor interface ge-0/0/5

Q44. What does the user@router> clear log ospf-trace command accomplish? A. The ospf-trace file is deleted. B. Trace parameters are removed from the OSPF protocol configuration. C. Logging data into ospf-trace is stopped. D. Data in the ospf-trace file is removed and logging continues.

D. Data in the ospf-trace file is removed and logging continues.

Q45. Which two actions does the monitor traffic command perform? (Choose two.) A. It provides access to the tcpdump utility. B. It monitors traffic that originates or terminates on the local PFE. C. It displays real-time log information on your terminal. D. It monitors traffic that originates or terminates on the local RE.

A. It provides access to the tcpdump utility.; D. It monitors traffic that originates or terminates on the local RE.

Q46. What are two requirements for root password recovery in Junos? (Choose two.) A. You must have console access to the device. B. You must have saved the rescue configuration in advance. C. You must load the factory default configuration. D. You must reboot the device.

A. You must have console access to the device.; D. You must reboot the device.

Q47. Which two statements are correct about SNMPv3? (Choose two.) A. It uses plain-text community strings. B. It protects against tampering and eavesdropping. C. It is simpler to configure than SNMPv2c. D. It provides encrypted passwords for secure communication.

B. It protects against tampering and eavesdropping.; D. It provides encrypted passwords for secure communication.

Q48. Which Junos tool should you use to identify the path that packets take through the network to a destination? A. monitor interface traffic B. traceroute C. SNMP D. ping

B. traceroute

Q49. Click the Exhibit button. Referring to the exhibit using the show route 192.168.100.100 command output, over which interface will the traffic be forwarded? A. xe-0/1/3.0 B. xe-0/0/0.0 C. xe-0/1/4.0 D. xe-0/1/2.0

B. xe-0/0/0.0

Q50. Which routing table is used for IPv6 unicast routes by default? A. inet.0 B. inet.6 C. inet.1 D. inet6.0

D. inet6.0

Q51. Click the Exhibit button. Referring to the exhibit, which two statements about IPv6 routing are correct? (Choose two.) A. The router is not learning IPv6 routes from peers. B. The router cannot forward traffic to remote IPv6 networks. C. Traffic destined for the 2001:db8:22:108::/64 network is forwarded using the ge-0/0/5.0 interface. D. The router is connected to the 2001:db8:22:107::/64 network.

A. The router is not learning IPv6 routes from peers.; B. The router cannot forward traffic to remote IPv6 networks.

Q52. Which two statements accurately describe the relationship between the routing table and the forwarding table on a Junos device? (Choose two.) A. The routing table resides in the data plane for fast lookups. B. The routing table selects the best route based on routing information. C. The forwarding table is built from the routing table. D. The routing table is built from the forwarding table.

B. The routing table selects the best route based on routing information.; C. The forwarding table is built from the routing table.

Q53. Click the Exhibit button. You are configuring a Junos router to provide connectivity to a building across town on the network 10.10.10.0/24. The next-hop router is at 10.10.1.1, which is reachable using interface ge-0/0/1. After committing the configuration in the exhibit, users report they still cannot reach the 10.10.10.0/24 network, and the route does not appear as active in the routing table. In this scenario, which statement is correct? A. The next-hop address 10.1.1.1 is not directly connected or reachable through another route. B. Static routes must include the outgoing interface as the next hop. C. The static route requires a preference value to be specified or it will not install. D. The static route requires the retain keyword to remain active in the routing table.

A. The next-hop address 10.1.1.1 is not directly connected or reachable through another route.

Q54. When multiple routes exist to the same destination IP address, which rule do routers use to select the next hop? A. They choose the route learned most recently. B. They choose a route at random to balance paths. C. They choose the route with the longest prefix match. D. They choose the route with the largest administrative distance.

C. They choose the route with the longest prefix match.

Q55. You must view the forwarding table on your Junos device to troubleshoot a packet forwarding issue. In this scenario, which command would display the forwarding table? A. show route table B. show route forwarding-table C. show ip forwarding D. show forwarding-options

B. show route forwarding-table

Q56. Click the Exhibit button. Referring to the exhibit, what is the next hop for IP address 10.0.0.9? A. 192.168.2.1 B. 192.168.1.1 C. 192.168.3.1 D. 192.168.0.1

A. 192.168.2.1

Q57. Click the Exhibit button. Referring to the exhibit, what would be the next-hop address for the packet destined for the 10.0.0.0/24 network if the ge-0/0/1 interface goes down? A. 10.23.0.3 B. 10.12.0.2 C. 10.12.0.1 D. 10.25.11.1

A. 10.23.0.3

Q58. What is the main function of the forwarding table on a Junos device? A. It contains only active routes used to forward packets through the PFE. B. It advertises routes to neighboring routers. C. It stores all learned routes from routing protocols. D. It determines the best route based on route preference.

A. It contains only active routes used to forward packets through the PFE.

Q59. Which two statements about route preference in Junos OS are correct? (Choose two.) A. Higher route preference values indicate higher priority. B. Route preference is considered after evaluating the longest prefix match. C. Lower route preference values indicate higher priority. D. Route preference determines the forwarding table size.

B. Route preference is considered after evaluating the longest prefix match.; C. Lower route preference values indicate higher priority.

Q60. Click the Exhibit button. Which two statements are true about the firewall filter configuration shown in the exhibit? (Choose two.) A. It sends filtered data to a syslog file. B. It applies the filter to a physical interface. C. It evaluates SSH packets egressing from the management interface. D. It counts the number of SSH packets that egress from the source SSH interface.

B. It applies the filter to a physical interface.; C. It evaluates SSH packets egressing from the management interface.

Q61. Click the Exhibit button. Referring to the exhibit, which command would be used to view the IP subnet addresses associated with prefix-list DIRECT-IP? A. show policy-options prefix-list DIRECT-IP B. show configuration policy-options prefix-list DIRECT-IP C. show configuration policy-options prefix-list DIRECT-IP | display inheritance D. show configuration policy-options prefix-list DIRECT-IP apply-path

C. show configuration policy-options prefix-list DIRECT-IP | display inheritance

Q62. Click the Exhibit button. How is traffic, sourced from 10.0.0.0/8, treated by the firewall filter shown in the exhibit? A. logged and discarded B. logged and accepted C. logged with no further action D. logged and rejected

D. logged and rejected

Q63. Your routing policy has three terms. A route matches the first term with an accept action. In this scenario, what happens next? A. The route is rejected by default. B. The route is evaluated by the second term. C. The route is sent to the next policy chain. D. The route is accepted and no further terms are evaluated.

D. The route is accepted and no further terms are evaluated.

Q64. Click the Exhibit button. Referring to the exhibit, which two actions will occur when a packet matches the firewall filter? (Choose two.) A. A counter will be incremented. B. The packet will be discarded. C. The packet will be forwarded. D. An ICMP destination unreachable message will be returned.

A. A counter will be incremented.; B. The packet will be discarded.

Q65. Which two statements about prefix lists in Junos are correct? (Choose two.) A. Prefix lists can be re-used in multiple routing policies. B. Prefix lists can be used in both firewall filters and routing policies. C. Prefix lists cannot be used in routing policies. D. Prefix lists cannot be used in firewall filters.

A. Prefix lists can be re-used in multiple routing policies.; B. Prefix lists can be used in both firewall filters and routing policies.

Q67. What is the primary purpose of an IPv6 link-local address? A. to provide Layer 2 connectivity B. to assign a unique address for multicast traffic C. to enable communication between devices on the same segment D. to replace the default gateway in IPv6 networks

C. to enable communication between devices on the same segment

Q68. Which two actions would you perform when you are in the operational mode of the CLI? (Choose two.) A. Clear the log files. B. Commit the configuration. C. Reboot the device. D. Configure routing protocols.

A. Clear the log files.; C. Reboot the device.

Q69. Which protocol is used to discover the Layer 2 (MAC) address of a next hop for IPv6 hosts? A. DHCP B. ARP C. NDP D. DNS

C. NDP

Q70. After the factory default configuration is loaded, which configuration object must be created prior to the first commit? A. host name B. loopback IP address C. out-of-band connectivity D. root authentication

D. root authentication

Q71. You want to automatically back up your Junos device configuration to an external server every time you commit a configuration change. In this scenario, which command would accomplish this task? A. set system commit synchronize B. set system archival configuration transfer-interval C. set system archival configuration transfer-on-commit D. set system archival configuration archive-sites

C. set system archival configuration transfer-on-commit

Q72. Which two traffic types are processed by a Routing Engine using Junos OS? (Choose two.) A. traffic with CoS markings B. transit traffic C. routing updates D. local management traffic

C. routing updates; D. local management traffic

Q73. What is the purpose of an ARP packet? A. to determine the MPLS label of a given IP address B. to determine the IP address of a given URL C. to determine the MAC address of a given IP address D. to determine the IP address of a given MAC address

C. to determine the MAC address of a given IP address

Q74. Which two statements describe rollback configuration behavior in Junos OS? (Choose two.) A. Rollback configurations are applied automatically after a commit confirmed timeout. B. Rollback 0 always refers to the factory default configuration. C. Rollback files are stored automatically after each commit. D. Up to 100 rollback configurations are maintained by default.

A. Rollback configurations are applied automatically after a commit confirmed timeout.; C. Rollback files are stored automatically after each commit.

Q75. Which two statements about firewall filters are correct? (Choose two.) A. Firewall filters are stateful. B. Firewall filters can match Layer 4 parameters. C. Firewall filters can match Layer 7 parameters. D. Firewall filters are stateless.

B. Firewall filters can match Layer 4 parameters.; D. Firewall filters are stateless.

Q76. Which statement describes the primary purpose of a routing policy in Junos OS? A. It controls which routes are accepted or advertised by a routing protocol. B. It determines the physical interface used for forwarding traffic. C. It sets the maximum number of routes in the routing table. D. It enables automatic rollback of routing changes.

A. It controls which routes are accepted or advertised by a routing protocol.

Q77. Which statement accurately describes the purpose of route preference in Junos OS? A. It sets the metric for forwarding traffic through the Packet Forwarding Engine. B. It determines which route is selected as active when multiple routes to the same destination exist. C. It controls the redistribution of routes between routing instances. D. It determines the maximum number of routes that can be installed in the routing table.

B. It determines which route is selected as active when multiple routes to the same destination exist.

Q78. Which two operational mode commands would you use to verify CPU and memory utilization on a Junos device? (Choose two.) A. show chassis routing-engine B. show chassis environment C. show system processes extensive D. show system resource-monitor summary

A. show chassis routing-engine; C. show system processes extensive

Q79. Which two tasks are performed by the Routing Engine in a Junos device? (Choose two.) A. The Routing Engine runs routing protocols. B. The Routing Engine evaluates transit traffic against firewall filters. C. The Routing Engine manages the device configuration. D. The Routing Engine forwards transit traffic.

A. The Routing Engine runs routing protocols.; C. The Routing Engine manages the device configuration.

Q80. Exhibit: Referring to the exhibit, which route will be selected for a packet destined to IP address 10.50.10.55? A. Route 0.0.0.0/0 will be selected using next hop 203.0.113.1 because the default route matches all destinations and has been active the longest. B. Route 10.50.0.0/16 will be selected using next hop 192.168.1.10 because OSPF has a better preference value than BGP. C. Route 10.50.10.0/24 will be selected using next hop 192.168.1.20 because it has the longest prefix match for the destination address. D. Route 10.0.0.0/8 will be selected using next hop 192.168.1.1 because it was learned from the static routing protocol which has the lowest preference value.

C. Route 10.50.10.0/24 will be selected using next hop 192.168.1.20 because it has the longest prefix match for the destination address.

Q81. Which statement is correct about traffic flow in the network shown in the exhibit? A. A routing loop can occur if one of the users sends packets to 10.1.99.1. B. Only User A can reach destinations beyond Router R1. C. Router R2 will drop packets destined for user B and user D. Router R1 will discard all packets from all three users.

A. A routing loop can occur if one of the users sends packets to 10.1.99.1.

Q82. Exhibit: Referring to the exhibit, with firewall filter Packet-Filter attached to an interface, if traffic is sent from 192.168.1.1 to 8.8.8.8 for a UDP DNS query, what will happen to the traffic? A. The traffic will match term 1 and be forwarded. B. The traffic will match the default last term and be forwarded. C. The traffic will match the default last term and be discarded. D. The traffic will match term 3 and be forwarded.

C. The traffic will match the default last term and be discarded.

Q83. Which two statements about route preference in Junos are correct? (Choose two.) A. Both direct and static routes have the same preference. B. Both direct and local routes have the same preference. C. Both OSPF internal and OSPF AS external routes have the same preference. D. Both EBGP and IBGP routes have the same preference.

B. Both direct and local routes have the same preference.; D. Both EBGP and IBGP routes have the same preference.

Q84. Which statement about collision domains and broadcast domains is correct? A. A router separates collision domains but forwards all broadcast traffic between its interfaces. B. VLANs on a switch reduce collision domains but have no effect on broadcast domains. C. A switch creates a separate collision domain for each port, but all ports remain in the same broadcast domain by default. D. Broadcast domains are only relevant in IPv4 networks and are not used in IPv6 networks.

C. A switch creates a separate collision domain for each port, but all ports remain in the same broadcast domain by default.

Q85. Which command is used to view real-time traffic statistics for all interfaces? A. show interfaces extensive B. monitor interface traffic C. monitor traffic interface all D. show interfaces statistics

B. monitor interface traffic

Q86. Which protocol provides secure remote CLI access to a Junos device? A. FTP B. SNMP C. Telnet D. SSH

D. SSH

Q87. According to HPE Juniper Networking, when should you use the replace pattern command instead of the rename command? A. You want to create a private candidate configuration. B. You want to disable a physical interface. C. You need to edit a single component name in the configuration. D. You want to globally replace all occurrences of a specific string.

D. You want to globally replace all occurrences of a specific string.

Q88. Which statement accurately describes the Junos candidate configuration? A. It is a backup configuration stored in the rollback archive. B. It is the active configuration currently running on the device. C. It is a temporary configuration that becomes active only after a reboot. D. It is a configuration that stores proposed changes before they are committed.

D. It is a configuration that stores proposed changes before they are committed.

Q89. Exhibit: Referring to the exhibit, which routing configuration is required for these two users to access the remote server? A. Users and the server require a default gateway. B. Trunk ports must be enabled on the switch. C. Users must connect directly to the router. D. A routing protocol must be enabled on the router.

A. Users and the server require a default gateway.

Q90. Which command would you use to gracefully power off a Junos device? A. request system reboot B. shutdown now C. request system logout D. request system halt

D. request system halt

Q91. Which statement describes the purpose of configuring traceoption log files in Junos OS? A. The traceoption log files automatically optimize routing decisions based on traffic patterns. B. The traceoption log files enable detailed debugging of specific protocols or processes. C. The traceoption log files allow permanent storage of all system logs for compliance purposes. D. The traceoption log files provide real-time monitoring of interface bandwidth utilization.

B. The traceoption log files enable detailed debugging of specific protocols or processes.

Q92. You received a new Junos device and are configuring the system-related settings. You must configure this device for the current date and time on the US West coast. You have set the time zone to America/Los_Angeles, however, the system time and date did not change to the correct local time. In this scenario, which two additional actions would satisfy this requirement? (Choose two.) A. Configure an NTP server. B. Configure a DNS server. C. Set the date and time setting manually. D. Reboot the device.

A. Configure an NTP server.; C. Set the date and time setting manually.

Q93. Which statement about class of service (CoS) in a network is correct? A. CoS encrypts traffic to secure data across the network. B. CoS prioritizes certain types of traffic during congestion. C. CoS assigns IP addresses dynamically to optimize routing. D. CoS prevents broadcast storms by segmenting VLANs.

B. CoS prioritizes certain types of traffic during congestion.

Q94. Which two tasks should be performed when creating a new user account on a Junos device? (Choose two.) A. Assign the user to a login class. B. Configure a password for the user. C. Enable SSH for the user explicitly. D. Configure the user to bypass authentication.

A. Assign the user to a login class.; B. Configure a password for the user.

Q95. You are creating a new user account on your Junos device. The user must be able to validate the routing table and interface statistics but should not be able to make any configuration changes. In this scenario, which permission flag would satisfy this requirement? A. network B. configure C. view D. all

C. view

Q96. Which two subnet ranges include IP address 192.168.3.29? (Choose two.) A. 192.168.0.0/22 B. 192.168.3.0/28 C. 192.168.2.0/23 D. 192.168.252.0/21

A. 192.168.0.0/22; C. 192.168.2.0/23

Q97. You must verify that your configuration changes are valid before committing them to your Junos device. Which daemon verifies that the configuration is valid before committing? A. rpd B. mgd C. dcd D. chassisd

B. mgd

Q98. Which two tasks would you perform in operational mode? (Choose two.) A. requesting the system to reboot B. verifying the version of Junos OS C. rolling back to a previous configuration D. committing your configuration

A. requesting the system to reboot; B. verifying the version of Junos OS

Q99. You have recently completed a Junos OS version upgrade and you want to confirm that the device is running the correct version of the software. Which command should you use to accomplish this task? A. request system software validate B. show chassis routing-engine C. show system snapshot D. show version

D. show version

Q100. What contains routing information for inet.0 and inet6.0? A. the LIB B. the SIB C. the RIB D. the MIB

C. the RIB

Q101. Which two statements are correct about a Routing Engine? (Choose two.) A. It processes CoS marked traffic. B. It processes management traffic. C. It forwards transit traffic. D. It maintains routing tables.

B. It processes management traffic.; D. It maintains routing tables.