Juniper JN0-400 Online Practice Questions and Exam Preparation

Juniper JN0-400 Online Questions & Answers

• Question 1:

  Which two statements describe the active configuration? (Choose two.)

  A. The active configuration is the same as the configuration of rollback 0.
  B. The active configuration can be different than the startup configuration.
  C. The active configuration is the configuration currently operational on the switch.
  D. The active configuration is stored as /config/juniper.conf.0.gz.
  A. The active configuration is the same as the configuration of rollback 0.
  C. The active configuration is the configuration currently operational on the switch.

• Question 2:

  Click the Exhibit button.

  In the exhibit, to which hierarchy level will the user be directed based upon the last command issued?

  

  A. [edit protocolsospf area] root#
  B. [edit protocolsospf] root#
  C. [edit] root#
  D. [edit protocols] root#
  B. [edit protocolsospf] root#

• Question 3:

  Click the Exhibit button.

  In the exhibit, for which mode is ge-0/0/18.0 configured?

  

  A. port
  B. native
  C. access
  D. trunk
  D. trunk

• Question 4:

  Which two statements are true regarding J-Web access? (Choose two.)

  A. J-Web access uses the same authentication method as the CLI.
  B. Both HTTP and HTTPS can be used to access J-Web.
  C. J-Web access is available only through the me0 interface.
  D. The web-management service is enabled in the factory-default configuration.
  A. J-Web access uses the same authentication method as the CLI.
  B. Both HTTP and HTTPS can be used to access J-Web.

• Question 5:

  Which statement is true regarding the EX-series file system?

  A. Contents in the /var directory are automatically removed upon a successful software upgrade.
  B. The file system must be cleaned manually after every upgrade.
  C. Contents in the /var directory are automatically archived for future software rollbacks.
  D. The file system must be cleaned manually before every upgrade.
  A. Contents in the /var directory are automatically removed upon a successful software upgrade.

• Question 6:

  Which port mode allows a network port to transmit 802.1Q-tagged Ethernet frames for multiple VLANs?

  A. access mode
  B. multiple supplicant mode
  C. trunk mode
  D. single supplicant mode
  C. trunk mode

• Question 7:

  Which two statements describe the management of a virtual chassis? (Choose two.)

  A. Manage the entire virtual chassis by configuring a single management IP address on the Virtual Management Ethernet (vme) interface.
  B. Each virtual chassis member switch has its own console port and must be managed separately.
  C. Manage each member switch by configuring an individual management IP address on each member switch's Virtual Management Ethernet (vme) interface.
  D. Console connections to individual member switches are redirected to the master switch.
  A. Manage the entire virtual chassis by configuring a single management IP address on the Virtual Management Ethernet (vme) interface.
  D. Console connections to individual member switches are redirected to the master switch.

• Question 8:

  Which two fields appear in an 802.1Q tag in an Ethernet header? (Choose two.)

  A. AFI/SAFI
  B. VLAN ID
  C. type/length
  D. 802.1p priority
  B. VLAN ID
  D. 802.1p priority

• Question 9:

  What are two mandatory type/length/value (TLV) elements in a Link Layer Discovery Protocol (LLDP) message? (Choose two.)

  A. time to live
  B. chassis ID
  C. management address
  D. system capabilities
  A. time to live
  B. chassis ID

• Question 10:

  Which two configuration options are valid methods for troubleshooting an EX-series switch? (Choose two.)

  A. traceoptions
  B. syslog
  C. debug
  D. monitor
  A. traceoptions
  B. syslog