Juniper JN0-643 Online Practice Questions and Exam Preparation

Juniper JN0-643 Online Questions & Answers

• Question 281:

  You are a service provider and have multiple customers in a building. You are installing a new switch that can host all of your customers. However, you would like to ensure that one customer cannot see or broadcast to another customer. You would also like to have them use a common gateway IP address from the building.

  What should be used to provide this access?

  A. VLAN
  B. private VLAN
  C. filter-based VLAN
  D. Layer 2 tunneling
  B. private VLAN

• Question 282:

  The network administrator wants the ports on an EX series switch to allow both tagged and untagged frames to be followed. Tagged FRAMES should be associated with their tagged VLAN. While untagged frames should be associated with a preconfigured VLAN. In this scenario, which statement is true?

  A. The INTERFACE PORT MODE should be configured as mixed mode two allow both trunk and access port modes, untagged frames will belong to the default VLAN configured on that port.
  B. An Interface can be configured as an access port or a TRUNK Port ,but it cannot accept both tagged and untagged frames.
  C. The interface port mode should be configured as an access port with a VLAN id frames that enter the port wid a VLAN tag already assigned will override the access port VLAN id.
  D. The interface port mode should be configured as a trunk port, untagged frames will belong to the native vlan id configured on that post.
  D. The interface port mode should be configured as a trunk port, untagged frames will belong to the native vlan id configured on that post.

• Question 283:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  You are asked to configure an OSPF virtual link that connects remote Area 4 to the backbone.

  Referring to the exhibit, what are two requirements for an OSPF virtual link to operate correctly? (Choose two.)

  A. A virtual link configuration on the ABR between Areas 0 and 1 must include transit area 1.
  B. The interface of the transit area must be of type vt.
  C. A virtual link configuration on the ABR between Areas 0 and 1 must be the interface address of the neighbor on the far end.
  D. A virtual link configuration on the ABR between Areas 0 and 1 must be the router ID (RID) of the neighbor on the far end.
  A. A virtual link configuration on the ABR between Areas 0 and 1 must include transit area 1.
  D. A virtual link configuration on the ABR between Areas 0 and 1 must be the router ID (RID) of the neighbor on the far end.

• Question 284:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button. You are the administrator for the network shown in the exhibit. R1 receives the 196.15.4.0/24 route from routers R2, R3, and R4. Local preference values have not been modified in this network. You are asked to ensure that R1 prefers the

  path through AS 3149 for traffic destined to 196.15.4.0/24. Which two methods will accomplish this task? (Choose two.)

  A. Configure a lower local preference on R3.
  B. Configure as-path-prepend on R2 and R4.
  C. Configure local-as on R3.
  D. Configure always-compare-med on R1.
  B. Configure as-path-prepend on R2 and R4.
  D. Configure always-compare-med on R1.

• Question 285:

  You are asked to reconfigure a CoS scheduler to limit the assured forwarding queue to a maximum of 75 percent of the available bandwidth. The assured forwarding queue uses a strict high priority queue. Which configuration parameter accomplishes this task?

  A. transmit-rate percent 75
  B. buffer-size percent 75
  C. shaping-rate percent 75
  D. shared-buffer percent 75
  C. shaping-rate percent 75

• Question 286:

  Area 1 is configured as an NSSA with no summaries.

  Which three types of LSAs are allowed in Area 1's database? (Choose three.)

  A. Type 1
  B. Type 2
  C. Type 3
  D. Type 5
  E. Type 7
  A. Type 1
  B. Type 2
  E. Type 7

• Question 287:

  NetBIOS snooping information is stored in which database on EX Series switches?

  A. RADIUS database
  B. LLDP neighbor database
  C. MAC table database
  D. routing table database
  B. LLDP neighbor database