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Juniper JN0-400 Exam - EX, Associate (JNCIA-EX)

Questions & Answers for Juniper JN0-400

Showing 1-15 of 120 Questions

Question #1 - Topic 0

Click the Exhibit button.
In the exhibit, what does the asterisk (*) indicate?

A. The interface is up and active.

B. The interface is configure for PoE.

C. The interface receives untagged frames.

D. The interface contains Layer 3 configuration.

Question #2 - Topic 0

Which directory contains the rollback 4 configuration?

A. /config

B. /var/config

C. /var/db/rollback

D. /config/db/config

Question #3 - Topic 0

Which two options describe MSTP? (Choose two.)

A. MSTP supports up to 64 MSTIs per region.

B. MSTP allows multiple root bridges per MSTI.

C. MSTP provides quicker convergence than STP and RSTP.

D. MSTP uses the CST to be backwards compatible with STP and RSTP.

Question #4 - Topic 0

Which statement is correct about the single-secure mode of 802.1X?

A. It does not require any supplicant on the interface; no supplicant is able to gain access.

B. It allows any one supplicant on the interface to be authenticated; once authentication is successful, any other devices on the same interface will gain access.

C. It allows any number of supplicants on the interface to be authenticated; only supplicants with their own successful authentication are allowed access at the same time.

D. It allows any one supplicant on the interface to be authenticated; once authentication is successful, only the successfully authenticated supplicant is allowed access at one time.

Question #5 - Topic 0

Which operational-mode command displays the status, physical properties, logical
properties, usage statistics, and error statistics for ge-0/0/0?

A. show interfaces ge-0/0/0 brief

B. show interfaces ge-0/0/0 terse

C. show interfaces ge-0/0/0 detail

D. show interfaces ge-0/0/0 extensive

Question #6 - Topic 0

Which two external authentication methods are supported by the JUNOS software for
accessing the CLI? (Choose two.)

A. NTLM

B. LDAP

C. RADIUS

D. TACACS+

Question #7 - Topic 0

Which statement regarding packet flow through an EX-series switch is correct?

A. Transit packets are processed by the Routing Engine.

B. The destination MAC address determines which lookup table is used.

C. The Routing Engine is consulted when processing both transit and host packets.

D. Routing protocol control packets are processed only by the Packet Forwarding Engine.

Question #8 - Topic 0

Click the Exhibit button.
In the exhibit, in which configuration hierarchy would the block-stuff filter be defined?

A. [edit firewall family inet]

B. [edit firewall family vlan]

C. [edit firewall family ethernet]

D. [edit firewall family ethernet-switching]

Question #9 - Topic 0

Which packet contains VLAN assignment information for a user during the 802.1X
authentication process?

A. EAP-success

B. EAP-response

C. RADIUS access-accept

D. RADIUS access-challenge

Question #10 - Topic 0

Which two statements are true regarding switch port modes? (Choose two.)

A. Trunk mode is the default mode for all ports.

B. Access mode is the default mode for all ports.

C. In trunk mode, ports receive and transmit untagged Ethernet frames by default.

D. In access mode, ports receive and transmit untagged Ethernet frames by default.

Question #11 - Topic 0

Which two major components make up the control and forwarding planes for an EX-series
switch? (Choose two.)

A. Routing Engine

B. Switching Engine

C. Switching Fabric Module

D. Packet Forwarding Engine

Question #12 - Topic 0

Which two methods are valid for performing a tcpdump on an EX-series interface? (Choose
two.)

A. Use the monitor interface traffic command.

B. Use the monitor traffic interface command.

C. Use the packet capture utility under the J-Web Monitor tab.

D. Use the packet capture utility under the J-Web Troubleshoot tab.

Question #13 - Topic 0

Which operational mode command do you use to view the rescue configuration?

A. file list /config/rescue.conf

B. file show /config/rescue.conf

C. file list /config/rescue.conf.gz

D. file show /config/rescue.conf.gz

Question #14 - Topic 0

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 { vlan voice-over-ip; forwarding-class expedited-forwarding; }

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

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

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

Question #15 - Topic 0

Which two statements describe the EX 3200 switches? (Choose two.)

A. The single-blower fan tray used for the EX 3200 switches is field replaceable.

B. The EX 3200 switches can be interconnected to form a single virtual chassis.

C. The redundant AC power supply units on the EX 3200 switches are hot swappable and load sharing.

D. The EX 3200 switches support either 4-port 1-Gigabit Ethernet or 2-port 10-Gigabit Ethernet uplink modules.

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