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JN0-105 Exam Book - JN0-105 Exam Consultant

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Juniper JN0-105 Exam Syllabus Topics:

Topic
Details

Topic 1

Configuration Basics: Identification of the main elements for configuring Junos devices is discussed in this topic. Moreover, it describes configuring basic components of a Junos device

Topic 2

Operational Monitoring and Maintenance: Different methods of monitoring or maintaining Junos devices are identified in this topic. Lastly, it discusses monitoring or maintenance procedures for a Junos device.

Topic 3

Networking Fundamentals: The topic networking fundamentals covers identifying the concepts and functionality of different fundamental elements of networking.

Topic 4

Junos OS Fundamentals: It covers concepts, benefits, and functionality of the core elements of the Junos OS.

Topic 5

Routing Policy and Firewall Filters: The topic of Routing Policy and Firewall Filters covers routing policy and firewall filters on Junos devices. Furthermore, the topic also deals with routing policies and firewall filters on a Junos device.

Topic 6

Routing Fundamentals: This topic discusses pointing out basic routing concepts or functionality for Junos devices. Moreover, the topic also describes configuring or monitoring basic routing elements for a Junos device.

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Juniper Junos, Associate (JNCIA-Junos) Sample Questions (Q94-Q99):

NEW QUESTION # 94
Which two statements are correct regarding Layer 2 network switches? (Choose two.)

A. Switches do not learn MAC addresses.
B. Switches create a single collision domain.
C. Switches flood broadcast traffic.
D. Switches are susceptible to traffic loops.

Answer: C,D

Explanation:
Layer 2 network switches are crucial components in local area networks (LANs), providing multiple functions for data packet forwarding and network segmentation. One inherent characteristic of switches is their susceptibility to traffic loops, especially in networks with redundant paths. Without proper loop prevention protocols like Spanning Tree Protocol (STP), loops can cause broadcast storms and network instability. Additionally, switches inherently flood broadcast traffic to all ports within the broadcast domain, except the port on which the broadcast was received. This is because broadcast frames are meant to be delivered to all devices within the VLAN, and the switch ensures this by flooding these frames to all ports in the VLAN, except the source port.

NEW QUESTION # 95
How many login classes are assignable to a user account?

A. 0
B. 1
C. 2
D. 3

Answer: D

Explanation:
https://www.juniper.net/documentation/us/en/software/junos/user-access-evo/user-access/topics/topic-map/junos-os-login-class.html#:~:text=You%20can%20define%20any%20number,to%20an%20individual%20user%20account.
In Junos OS, each user account can be assigned only one login class. Login classes in Junos OS define the permissions for users, controlling what they can access and modify within the system. This setup helps in maintaining a clear and secure access control mechanism.
Reference:
Junos OS Documentation on User Accounts and Login Classes.

NEW QUESTION # 96
Click the Exhibit button.

Referring to the exhibit, what should be configured on R1 to advertise a default static route into OSPF?

A. a management interface
B. a firewall filter
C. a routing policy
D. a loopback interface

Answer: C

Explanation:
To advertise a default static route into OSPF on router R1, a routing policy should be configured. This policy would typically include a statement to match the default route (0.0.0.0/0) and then apply an action to set the route as an OSPF external type, which would then be redistributed into the OSPF domain. The routing policy is a set of conditions and actions that determine how routes are imported into or exported from the routing table and how routes are shared between routing instances or routing protocols. After defining the policy, it must be applied to OSPF under the export section of the OSPF configuration on R1. This process will allow R1 to announce the default route to other OSPF routers in the network, which then can use it as a gateway of last resort to reach the Internet or other networks not explicitly known to the OSPF domain.

NEW QUESTION # 97
You have completed the initial configuration of your new Junos device. You want to be able to load this configuration at a later time.
Which action enables you to perform this task?

A. Enter the load factory-default command.
B. Enter the request system reboot command.
C. Enter the request system zeroize command.
D. Enter the request system configuration rescue save command.

Answer: D

Explanation:
In Junos OS, the request system configuration rescue save command is used to save the current active configuration as a rescue configuration. This feature is particularly useful for preserving a known good configuration state that can be quickly reverted to in case of configuration errors or issues. By saving a rescue configuration, administrators can ensure that they have a reliable fallback option that can be loaded in the future to restore the device's operation without having to reconfigure from scratch. This is an essential practice for maintaining network stability and quick recovery.

NEW QUESTION # 98
Which protocol is responsible for learning an IPv4 neighbor's MAC address?

A. Network Address Translation (NAT)
B. Address Resolution Protocol (ARP)
C. Media Access Control Security (MACsec)
D. Neighbor Discovery Protocol (NDP)

Answer: B

Explanation:
The Address Resolution Protocol (ARP) is a fundamental protocol used in IPv4 networking to map an IP address to its corresponding MAC (Media Access Control) address. When an IPv4 device wants to communicate with another device on the same local network, it uses ARP to find out the MAC address associated with the target device's IP address. This ensures that IP packets can be encapsulated into Ethernet frames and delivered to the correct hardware address on the local network segment. ARP does not apply to IPv6, where Neighbor Discovery Protocol (NDP) performs a similar function.

NEW QUESTION # 99
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