Juniper JN0-400 Online Practice Questions and Exam Preparation

Juniper JN0-400 Online Questions & Answers

• Question 41:

  Which statement regarding network ports on EX 4200 switches is correct?

  A. EX 4200 switches support copper or fiber network ports, depending on the switch model.
  B. If the 2-port 10-Gigabit Ethernet uplink module is installed, the last two built-in network ports are not usable.
  C. EX 4200 switches support 12, 24, or 48 built-in network ports depending on the switch model.
  D. If the 4-port 1-Gigabit Ethernet uplink module is installed, the last four built-in network ports are not usable.
  A. EX 4200 switches support copper or fiber network ports, depending on the switch model.

• Question 42:

  Which Spanning Tree Protocol is enabled in the factory-default configuration?

  A. STP
  B. PVST
  C. MSTP
  D. RSTP
  D. RSTP

• Question 43:

  Which directory contains the rollback 4 configuration?

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

• Question 44:

  You want to configure a static default route to the gateway 10.1.1.1. Which set command will accomplish this task?

  A. set protocols static route 0.0.0.0/0 next-hop 10.1.1.1
  B. set routing-options static route 0.0.0.0/0 next-hop 10.1.1.1
  C. set familyinet static route 0.0.0.0/0 next-hop 10.1.1.1
  D. set routes static route 0.0.0.0/0 gateway 10.1.1.1
  B. set routing-options static route 0.0.0.0/0 next-hop 10.1.1.1

• Question 45:

  Click the Exhibit button.

  

  Why will the configurations in the exhibit fail to provide gateway redundancy between Switch-1 and Switch-2?

  A. The priority numbers do not match.
  B. VRRP is not supported between a physical interface and a VLAN interface.
  C. The IP addresses do not match.
  D. The group numbers do not match.
  D. The group numbers do not match.

• Question 46:

  Which statement regarding network ports on EX 3200 switches is correct?

  A. If the 4-port 1-Gigabit Ethernet uplink module is installed, the last four built-in network ports are not usable.
  B. EX 3200 switches support 12, 24, or 48 built-in network ports depending on the switch model.
  C. If the 2-port 10-Gigabit Ethernet uplink module is installed, the last two built-in network ports are not usable.
  D. EX 3200 switches support copper or fiber network ports, depending on the switch model.
  A. If the 4-port 1-Gigabit Ethernet uplink module is installed, the last four built-in network ports are not usable.

• Question 47:

  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 { voip { interface ge-0/0/5.0 { member-vlanvoice-over-ip; forwarding-class expedited-forwarding; }
  B. ethernet-switching-options { voice-vlan{ interface ge-0/0/5.0 { vlanvoice-over-ip; forwarding-class expedited-forwarding; }
  C. ethernet-switching-options { voice-vlan{ 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 48:

  Which two statements are true about route preferences? (Choose two.)

  A. Direct and local routes always have the best route preference.
  B. Higher route preferences are more preferred.
  C. Lower route preferences are more preferred.
  D. Static routes are always more preferred than routes from dynamic routing protocols.
  A. Direct and local routes always have the best route preference.
  C. Lower route preferences are more preferred.

• Question 49:

  Which two commands are valid for verifying NTP operation? (Choose two.)

  A. showntp status
  B. showntp associations
  C. showntp synchronization
  D. showntp server
  A. showntp status
  B. showntp associations

• Question 50:

  When configuring a redundant trunk group (RTG) on an interface, which restriction would apply?

  A. The interface must be configured as a Layer 3 interface with an assigned IP address.
  B. The interface cannot be configured as a Layer 2 trunk.
  C. The gratuitous-ARP-reply must be disabled on the interface.
  D. Spanning Tree Protocol (STP) cannot be configured on the interface.
  D. Spanning Tree Protocol (STP) cannot be configured on the interface.