Juniper JN0-680 Exam Practice Questions (P. 5)
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Question #21
You are deploying 50 QFX5100 switches in your data center. You are asked to explain the benefits of using ZTP during your deployment of these devices.
What is a benefit of this deployment?
What is a benefit of this deployment?
- AYou must use DHCP options to provide Junos installation packages to all devices.
- BYou must use DHCP options to provide the transfer mode used for pulling files from a storage server.
- CYou can use DHCP options to push the configuration files to all devices.
- DYou can use DHCP options to indicate which Junos version the switches should be running.
Correct Answer:
C
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/zero-touch-configuring-els.html
C
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/zero-touch-configuring-els.html
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Question #22
You are performing an in-service software upgrade (ISSU) on an QFX5100 Series device.
Which two statements are correct in this scenario? (Choose two.)
Which two statements are correct in this scenario? (Choose two.)
- AThe ksyncd process is used to synchronize the state of the master RE to the new backup RE.
- BThe dcd process is used to validate system configuration requirements.
- CThe vccpd process is used to synchronize the state of the master RE to the new backup RE.
- DThe mgd process is used to validate system configuration requirements.
Correct Answer:
AD
AD
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Question #23
You are asked to design a deployment plan for a large number of QFX Series switches using zero touch provisioning (ZTP). The ZTP deployment plan must ensure all switches are upgraded to the desired software version.
Which DHCP option are suboption combination would be used to accomplish this task?
Which DHCP option are suboption combination would be used to accomplish this task?
- ADHCP options 66 with a supoption of 00
- BDHCP options 66 with a supoption of 03
- CDHCP options 43 with a supoption of 00
- DDHCP options 43 with a supoption of 03
Correct Answer:
C
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/software-image-and-configuration-automatic-provisioning-confguring.html
C
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/software-image-and-configuration-automatic-provisioning-confguring.html
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Question #24

The VCF shown in the exhibit is not functioning correctly.
What must you do to get the VCF to function properly?
- ATurn on mixed fabric mode for all devices.
- BDeactivate mixed fabric mode for all devices.
- CSet Member 1 to the backup RE role.
- DSet Member 0 to the VC route mode.
Correct Answer:
A
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/concept/virtual-chassis-ex-qfx-series-mixed-understanding.html
A
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/concept/virtual-chassis-ex-qfx-series-mixed-understanding.html
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Question #25
What is the endpoint of a VXLAN tunnel?
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