When a system process encounters an error, how does the Junos OS protect other processes from being impacted?

A. Each process operates in its own shared memory space.

B. The Junos OS executes only one process at a time.

C. Each routing protocol runs as an individual process.

D. The Junos OS executes multiple processes simultaneously.

In which directory are traceoption files stored by default?

A. /var/tmp/

B. /var/log/

C. /var/db/

D. /var/home/

Which two features are implemented on the Packet Forwarding Engine? (Choose two.)

A. firewall filters

B. chassis management

C. class of service

D. routing protocol updates

A Junos device is configured with multiple routing protocols to the same destination prefix.
By default, which route will be active in the forwarding table?

A. an OSPF route

B. an IS-IS route

C. a BGP route

D. a static route

Which command verifies configuration syntax without applying the changes?

A. commit confirmed

B. commit check

C. commit comment

D. commit and-quit

You notice that the terms in your firewall filter are not in the correct order.
What would solve this problem?

A. Use the next term action to force an evaluation of the next term.

B. Use the insert command to reorder the terms within the filter.

C. Use the count parameter to ensure that the terms are evaluated correctly.

D. Use the reject action to change the action of the filter.

A Junos device is in a factory-default configuration and no host name is set.
What is used in place of a host name in this scenario?

A. router

B. amnesiac

C. Junos

D. user

What are two benefits realized by the disaggregated Junos OS? (Choose two.)

A. There is increased flexibility to use different control plane versions.

B. The Junos VM becomes hardware-independent and can be deployed on any hypervisor without modification.

C. The architecture facilitates programmability through provisioning the control plane, the data path, and the platform APIs.

D. The platform drivers and forwarding engine are removed from the control plane to increase performance.

What are three functions of the RE? (Choose three.)

A. to monitor the chassis

B. to maintain the forwarding tables

C. to implement policing

D. to enforce stateless firewall filters

E. to manage the PFE

Referring to the exhibit, which statement is true?

A. Traps are sent to 10.21.15.180.

B. Traps are allowed from 10.21.15.180.

C. Traps are sent to 10.21.15.16.

D. Traps are allowed from 10.21.15.16.

Which account is used to access a Junos device in a factory-default configuration?

A. root

B. admin

C. lab

D. juniper

What is the maximum number of configurations, by default, that are recoverable using the rollback command?

A. 50

B. 25

C. 100

D. 75

Referring to the exhibit, which dynamic routing protocol would be used for this topology?

A. IGMPv3

B. RIPng

C. RIP

D. OSPFv2

What is the next hop for a packet destined to 192.168.80.98 as shown in the exhibit?

A. 172.18.6.1

B. 172.25.11.254

C. 172.18.7.1

D. 192.168.11.2

Which statement is true about the orlonger route-filter match type?

A. All routes within the specified prefix that are longer than or equal to the given prefix are considered a match.

B. 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.

C. All routes within the specified prefix that are longer than the given prefix up to a defined acceptable prefix length are considered a match.

D. All routes within the specified prefix that are longer than the given prefix are considered a match.

What information would you find using the CLI help function? (Choose two.)

A. Junos technical publications

B. explanation of traceoption events

C. tip for the day

D. explanation of specific system log error messages

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.)

A. 19.3R1-S1

B. 19.3R2

C. 19.1R3

D. 19.1R1-S2

What would you use as a network tool to open a secure terminal connection from a device running Junos OS to another device?

A. SSH

B. HTTPS

C. RDP

D. telnet

Referring to the exhibit, which command will change the 172.16.10.1/24 IP address to 172.16.100.1/24 IP address?

A. copy interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24

B. rename interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24

C. set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24

D. insert interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 before address 172.16.100.1/24

Which command displays all IPv4 routes in the default routing instance?

A. show route table inet.1

B. show route table inet6.0

C. show route table inet.2

D. show route table inet.0

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. A routing policy is blocking BGP from learning the routes.

B. A security policy is blocking BGP from learning the routes.

C. Unicast reverse-path-forwarding is blocking BGP from learning the routes.

D. The firewall filter is blocking BGP from learning the routes.

Which statement is true about the command shown in the exhibit?

A. There needs to be a ; after top for the command to be accepted as a valid command.

B. Only top should be used, no other options are allowed on the same line.

C. The command shown in the exhibit would be accepted as a valid command.

D. If you replace top with up command, it becomes valid.

What does the output of the show route forwarding-table command display?

A. the Packet Forwarding Engine’s routing table

B. the inactive entries in the Routing Engine’s routing table

C. the routing protocol databases in the Routing Engine

D. the Routing Engine’s forwarding table

Which command displays the output shown in the exhibit?

A. show chassis hardware

B. show chassis temperature-thresholds

C. show chassis alarms

D. show chassis environment

Which two types of traffic are processed by the Routing Engine (RE)? (Choose two.)

A. IP packet with the IP Options field

B. time-to-time (TTL) expired messages

C. ICMP destination unreachable messages

D. OSPF update messages

Which three statements describe OSPF? (Choose three.)

A. OSPF uses a distance-vector algorithm to calculate routing cost.

B. OSPF calculates the best path to each destination.

C. OSPF is a link-state IGP.

D. OSPF must operate between different autonomous systems.

E. OSPF uses areas to incorporate hierarchy and to allow for scalability.

How does the PFE determine how to forward transit traffic?

A. The PFE determines network destinations itself based on the RE’s routing table.

B. The PFE uses the forwarding table provided by the RE.

C. The PFE performs a destination lookup based on its own routing table.

D. The PFE uses the routing table provided by the RE.

By default, which character indicates the UNIX shell prompt?

A. #

B. %

C. $

D. >

Which two interfaces are considered physical interfaces? (Choose two.)

A. ge-0/0/0

B. et-7/1/4.0

C. et-3/0/0:0.501

D. xe-10/2/1

What are two modes of unicast reverse path forwarding? (Choose two.)

A. strict

B. high

C. low

D. loose

Depending on the device type, Junos is built upon which two OS kernels? (Choose two.)

A. NetBSD

B. FreeBSD

C. Linux

D. OpenBSD

Which two statements are true about static routes in the Junos OS? (Choose two.)

A. Static routes remain in the routing table until you remove them or until they become inactive.

B. Static routes must have a next hop defined.

C. Static routes are learned by neighboring devices and added to their routing tables.

D. Static routes are defined at the [edit routing-instances] hierarchy.

Which statement is true about the longer route-filter match type?

A. All routes within the specified prefix that are longer than or equal to the given prefix are considered a match.

B. 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.

C. All routes within the specified prefix that are longer than the given prefix up to a defined acceptable prefix length are considered a match.

D. All routes within the specified prefix that are longer than the given prefix are considered a match.

While working on a Junos device, you receive the message shown in the exhibit.
In this scenario, what should you do to stop the shutdown process?

A. Issue the request system power-off in 0 command.

B. Issue the clear system commit command.

C. Issue the request system halt in 0 command.

D. Issue the clear system reboot command.

Referring to the exhibit, what information is provided about the route to 192.168.47.0/24? (Choose two.)

A. There are two active routes to 192.168.47.0/24.

B. There is a single active route to 192.168.47.0/24.

C. There are two next hops available to 192.168.47.0/24.

D. There is a single next hop available to 192.168.47.0/24.

What are two examples of transit traffic? (Choose two.)

A. SFTP traffic that enters and exits the same interface on the local router.

B. SCP traffic that enters one interface and exits another interface on the local router.

C. SFTP traffic that enters one interface and is destined for another interface on the local router.

D. SCP traffic that is destined for the router’s loopback interface.

Which keystroke combination allows users to move the cursor to the end of the command line without deleting text?

A. Ctrl + a

B. Ctrl + e

C. Ctrl + w

D. Ctrl + u

Which next-hop interface will be used to reach the 10.21.14.16 destination as shown in the exhibit?

A. ge-0/0/0.0

B. ge-0/0/2.0

C. ge-0/0/1.0

D. ge-0/0/3.0

Which two keystrokes are used to auto-complete commands? (Choose two.)

A. Esc

B. Spacebar

C. Tab

D. End

Which two statements describe IPv4 default behavior for BGP? (Choose two.)

A. All active BGP routes are exported to configured EBGP neighbors.

B. All BGP routes are exported to configured EBGP neighbors.

C. All BGP routes are imported into the inet4.0 routing table.

D. All BGP routes are imported into the inet.0 routing table.

You notice traffic destined to 172.31.17.0/24 is traversing an OSPF path rather than a BGP path.
Referring to the exhibit, what is causing this behavior?

A. The 172.31.17.0/24 BGP route has a higher route preference.

B. The 172.31.17.0/24 route does not have a valid BGP entry.

C. The 172.31.17.0/24 BGP route is missing a valid default next hop.

D. The 172.31.17.0/24 BGP route’s outgoing interface is down.

Referring to the exhibit, which type of route does the configuration create?

A. a generated route

B. a default gateway

C. an indirect next hop

D. a non-advertised route

What is the initial prompt displayed when logging in as the root user?

A. root@router>

B. root@router%

C. root@router#

D. root@router*

What is the minimum system-defined user class required to issue clear commands?

A. read-only

B. operator

C. authorized

D. super-user

Referring to the exhibit, which logical interface is able to forward IP traffic?

A. ge-0/0/2.0

B. ge-0/0/0

C. ge-0/0/1.0

D. ge-0/0/2

Given the configuration shown below:
set system authentication-order [ tacplus ]
Which two statements are correct? (Choose two.)

A. If the TACACS+ server is not available, the local user database is checked.

B. If the TACACS+ server is available and rejects the username/password provided, the user is not allowed to access the device.

C. If the TACACS+ server is not available, the user is not allowed to access the device.

D. If the TACACS+ server is available and rejects the username/password provided, the local password database is checked.

What are two configurable physical interface properties? (Choose two.)

A. protocol family

B. address

C. MTU

D. link mode

Which configuration parameter on a Junos device modifies the default next-hop resolution behavior of a static route?

A. resolve

B. no-readvertise

C. passive

D. preference

A packet enters a Junos device. No matching destination entry exists in the forwarding table.
How will the device respond?

A. The RE responds to the destination with a source unreachable notification message.

B. The RE responds to the source with a destination unreachable notification message.

C. The PFE responds to the destination with a source unreachable notification message.

D. The PFE responds to the source with a destination unreachable notification message.

How would you change the display so that 40 lines will be displayed in the terminal program when you are logged into a Junos device?

A. Issue the set cli screen-length 40 command from operational mode.

B. Set the display options in your terminal program.

C. Issue the set cli screen-length 40 command from configuration mode.

D. Set the window size of your terminal program.