Juniper JN0-104 Junos, Associate (JNCIA-Junos) Online Training
Juniper JN0-104 Online Training
The questions for JN0-104 were last updated at Dec 25,2024.
- Exam Code: JN0-104
- Exam Name: Junos, Associate (JNCIA-Junos)
- Certification Provider: Juniper
- Latest update: Dec 25,2024
What is the network address for a host with an IP address of 192.168.87.125/16?
- A . 192.168.128.0
- B . 192.168.0.0
- C . 192.168.96.0
- D . 192.168.87.0
B
Explanation:
The network address for a host is determined by performing a bitwise AND operation between the host’s IP address and the subnet mask. In this case, the IP address is 192.168.87.125 and the subnet mask is 255.255.0.0 (or /16), which means that the first 16 bits are used for the network portion of the address and the remaining 16 bits are used for the host portion.
To find the network address, we perform the bitwise AND operation:
Which command should you use to check real-time statistics of all active interfaces?
- A . user@router> monitor traffic extensive
- B . user@router> monitor interface traffic
- C . user@router> show interface detail
- D . user@router> show interface terse
B
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/network-mgmt/topics/topic-map/monitoring-interfaces-and-switching-functions.html
Click the Exhibit button.
UserA is currently working on routed and has issued the commands shown in the exhibit. UserB wants to update the IP address currently configured on interface xe-1/2/1.0.
What will UserB do to complete the configuration changes without interfering with UserA’s work?
- A . UserB should use the configure private option to complete the changes while UserA continues with the changes.
- B . UserB should use the configure exclusive option to complete the changes while UserA continues with the changes.
- C . Use the edit command and run the commit confirmed option then proceed with UserB’s changes.
- D . Wait for UserA to finish then proceed with changes using the configure private option.
Which routing instance type is used for filter-based forwarding applications?
- A . layer2-control
- B . vpls
- C . forwarding
- D . vrf
C
Explanation:
The forwarding routing instance type is used for filter-based forwarding applications, such as policy-based routing and traffic engineering. This type of routing instance is used when the routing table needs to contain more detailed information than what is available in the default routing table. According to the Juniper Networks Technical Certification Program (JNTCP) documents [1], the forwarding routing instance type is used for filter-based forwarding applications.
What are two functions of the transport layer? (Choose two.)
- A . data integrity
- B . segmentation
- C . flow control
- D . packet forwarding
BC
Explanation:
The transport layer is responsible for ensuring the reliable delivery of data between applications running on different devices.
It provides two main functions:
What are two functions of the transport layer? (Choose two.)
- A . data integrity
- B . segmentation
- C . flow control
- D . packet forwarding
BC
Explanation:
The transport layer is responsible for ensuring the reliable delivery of data between applications running on different devices.
It provides two main functions:
What are two functions of the transport layer? (Choose two.)
- A . data integrity
- B . segmentation
- C . flow control
- D . packet forwarding
BC
Explanation:
The transport layer is responsible for ensuring the reliable delivery of data between applications running on different devices.
It provides two main functions:
You are troubleshooting a problem on your Junos device. You want to view the syslog messages in real-time on your terminal.
In this scenario, which command will accomplish this task?
- A . monitor log messages
- B . monitor start messages
- C . show log messages
- D . show log trace options
B
Explanation:
The "monitor start messages" command is used to display syslog messages in real-time on the terminal. This command provides a convenient way to monitor system events and troubleshoot problems on the device. The output of this command is sent to the console and updates in real-time as new syslog messages are generated.
To use this command, you simply enter "monitor start messages" at the CLI prompt and the syslog messages will be displayed on the terminal. To stop the display, you can press "Ctrl+C".
Reference: Juniper Networks JNCIA-Junos Study Guide, Section 8.4 "Monitoring System Log Messages"
You are asked to enable the configuration archival feature on your device running Junos OS.
Which two backup scenarios exist? (Choose two.)
- A . When a user performs a commit operation.
- B . When a user logs out of the device.
- C . When a specific time interval passes.
- D . When a user logs in to the device.
AC
Explanation:
Ref: Back Up Configurations to an Archive Site | Junos OS | Juniper Networks
"Back Up Configurations to an Archive Site
…
Configure the Transfer of the Active Configuration
If you want to back up your device’s current configuration to an archive site, you can configure the device to transfer its active configuration by FTP, HTTP, or secure copy (SCP) periodically or after each commit.
A router contains both a static route and an OSPF route for the 172.18.100.0/24 prefix in its routing table. The router is configured to use the factory-default Junos OS routing preference values.
In this scenario, which statement is correct?
- A . The OSPF route will be active because of a higher default preference value.
- B . The OSPF route will be active because of a lower default preference value.
- C . The static route will be active because of a lower default preference value.
- D . The static route will be active because of a higher default preference value.
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