Juniper JN0-400 Online Practice Questions and Exam Preparation

Juniper JN0-400 Online Questions & Answers

• Question 21:

  What is the maximum number of EX 4200 switches that can be included in a virtual chassis?

  A. 10
  B. 9
  C. 12
  D. 11
  A. 10

• Question 22:

  Which two factors determine the shortest path between switches in a virtual chassis configuration? (Choose two.)

  A. type of switch
  B. hop count
  C. bandwidth
  D. memory consumption
  B. hop count
  C. bandwidth

• Question 23:

  Which two actions are available when configuring the MAC limiting feature? (Choose two.)

  A. Redirect the traffic with changed loss-priority.
  B. Drop the traffic.
  C. Change the forwarding-class of the traffic.
  D. Shut down the interface so traffic will be blocked.
  B. Drop the traffic.
  D. Shut down the interface so traffic will be blocked.

• Question 24:

  Which command is used to upgrade JUNOS software on an EX-series switch?

  A. user@switch# request system software upgrade
  B. user@switch> request system software upgrade
  C. user@switch# request system software add
  D. user@switch> request system software add
  D. user@switch> request system software add

• Question 25:

  Within a virtual chassis, which type of switch maintains the forwarding table?

  A. forwarding switch
  B. line card
  C. master switch
  D. routing switch
  C. master switch

• Question 26:

  When two power supplies with different capacities are installed on an EX 4200 switch, what is the expected resulting amount of power available for Power over Ethernet (PoE) powered devices connected to the switch?

  A. The power allocation pool is calculated based on the difference between the power supplies.
  B. The power allocation pool is calculated based on the combined total of the two power supplies.
  C. The power allocation pool is calculated based on the lower-capacity power supply.
  D. The power allocation pool is calculated based on the higher-capacity power supply.
  C. The power allocation pool is calculated based on the lower-capacity power supply.

• Question 27:

  Which directory contains the rollback 4 configuration?

  A. /config/db/config
  B. /var/db/rollback
  C. /config
  D. /var/config
  A. /config/db/config

• Question 28:

  Which two commands allow the user to view which physical ports are associated with a VLAN? (Choose two.)

  A. show interfaces extensive
  B. showvlans detail
  C. show interfacesvlans
  D. showethernet-switching interfaces
  B. showvlans detail
  D. showethernet-switching interfaces

• Question 29:

  You are configuring the voice VLAN feature on an EX-series switch on interface ge-0/0/5.

  Which configuration would you use?

  A. ethernet-switching-options { voice-vlan{ interface ge-0/0/5.0 { vlanvoice-over-ip; forwarding-class expedited-forwarding; }
  B. ethernet-switching-options { voice-vlan{ interface ge-0/0/5.0 { member-vlanvoice-over-ip; forwarding-class expedited-forwarding; }
  C. ethernet-switching-options { voip { interface ge-0/0/5.0 { member-vlanvoice-over-ip; forwarding-class expedited-forwarding; }
  D. ethernet-switching-options { voip { interface ge-0/0/5.0 { vlanvoice-over-ip; forwarding-class expedited-forwarding; }
  D. ethernet-switching-options { voip { interface ge-0/0/5.0 { vlanvoice-over-ip; forwarding-class expedited-forwarding; }

• Question 30:

  Which three are included in the factory-default configuration? (Choose three.)

  A. user authentication
  B. SNMP
  C. familyethernet-switching for all ports
  D. RSTP
  E. LLDP
  C. familyethernet-switching for all ports
  D. RSTP
  E. LLDP