Juniper JN0-648 Online Practice Questions and Exam Preparation

Juniper JN0-648 Online Questions & Answers

• Question 1:

  You are using 802.1X in your access network consisting of EX Series switches. You recently had a failure with your RADIUS server which resulted in authenticating client devices being denied access to the network. You want to change this behavior so that authenticating clients are directed to a remediation VLAN.

  Which RADIUS server failback setting satisfies this requirement?

  A. permit
  B. move
  C. sustain
  D. deny
  B. move

• Question 2:

  Click the Exhibit button.

  

  Referring to the exhibit, which TTL value will be sent to the LLDP neighbors?

  A. 120 seconds
  B. 400 seconds
  C. 90 seconds
  D. 200 seconds
  A. 120 seconds

• Question 3:

  Click the Exhibit button.

  

  Which two statements are true about the 802.1X output shown in the exhibit? (Choose two.)

  A. The supplicant is not authenticated using 802.1X.
  B. The supplicant is authenticated using 802.1X.
  C. EAPoL traffic will be sent out of the ge-0/0/1 interface.
  D. EAPoL traffic will not be sent out of the ge-0/0/1 interface.
  A. The supplicant is not authenticated using 802.1X.
  C. EAPoL traffic will be sent out of the ge-0/0/1 interface.

• Question 4:

  Your IPv4 multicast network uses different MX Series routers for the source DR and the PIM sparse-mode RP. What is required before PIM register messages are exchanged between the DR and RP routers?

  A. Add a tunnel services PIC to the RP router.
  B. Add an adaptive services PIC to the DR router.
  C. Enable tunnel services on the DR and RP routers.
  D. Configure PIM encapsulation on the DR and RP routers.
  C. Enable tunnel services on the DR and RP routers.

• Question 5:

  Which three types of ports are used for Junos Fusion Enterprise? (Choose three.)

  A. extended port
  B. authenticated port
  C. cascade port
  D. uplink port
  E. designated port
  A. extended port
  C. cascade port
  D. uplink port

• Question 6:

  You are designing a multicast topology to support IPv4 IPTV broadcasts in your organization. The design should support multiple multicast senders with overlapping group addresses while preventing interference between them. Client devices currently do not support IGMPv3.

  Which approach would fulfill these requirements?

  A. Implement MLD.
  B. Assign group addresses in the 224/4 range and implement PIM-DM.
  C. Implement PIM-SM and SSM with SSM maps to support IGMPv2 clients.
  D. Implement bidirectional PIM.
  B. Assign group addresses in the 224/4 range and implement PIM-DM.

• Question 7:

  You have configured class mode power management on an EX4300 to provide PoE power to telephone and security camera equipment. You want to ensure that security camera power takes priority over telephone power. Which two actions would solve this problem? (Choose two.)

  A. Connect the security cameras to the lowest port numbers on the switch.
  B. Set the power priority to high on ports connected to security cameras.
  C. Set the maximum power settings on ports connected to security cameras.
  D. Set the power priority to low on ports connected to security cameras.
  A. Connect the security cameras to the lowest port numbers on the switch.
  B. Set the power priority to high on ports connected to security cameras.

• Question 8:

  You are deploying IP phones in your Layer 2 network and are asked to ensure that the switch sends VLAN and CoS information to the IP phones automatically. In this scenario, which protocol should be used?

  A. PoE+
  B. LLDP
  C. LLDP-MED
  D. PoE
  C. LLDP-MED

• Question 9:

  Click the Exhibit button.

  

  During an outage, you review the status of the Q-in-Q implementation on VLAN 300. Referring to the exhibit, what would be the cause of the outage?

  A. The S-VLAN is disabled.
  B. The VLAN range overlaps.
  C. The C-VLANs are disabled.
  D. There are no active ports.
  D. There are no active ports.

• Question 10:

  In a Layer 2 environment where 802.1X is deployed, which two statements are correct? (Choose two.)

  A. RADIUS messages are exchanged between the supplicant and the authenticator.
  B. RADIUS messages are exchanged between the authenticator and the authentication server.
  C. Extensible Authentication Protocol messages are exchanged between the authenticator and the authentication server.
  D. Extensible Authentication Protocol messages are exchanged between the supplicant and the authenticator.
  B. RADIUS messages are exchanged between the authenticator and the authentication server.
  D. Extensible Authentication Protocol messages are exchanged between the supplicant and the authenticator.