Juniper JN0-643 Online Practice Questions and Exam Preparation

Juniper JN0-643 Online Questions & Answers

• Question 241:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  In the exhibit, a customer wants to configure an EBGP connection to two different routers in a neighboring autonomous system. The goal of this configuration is to use per-prefix load balancing across both EBGP links.

  Which configuration accomplishes this goal?

  A. {master:0}[edit] user@router# show protocols bgp group External { multihop; peer-as 65532; neighbor 10.10.2.2; neighbor 10.20.2.2; }
  B. {master:0}[edit] user@router# show protocols bgp group External { multipath; peer-as 65532; neighbor 10.10.2.2; neighbor 10.20.2.2; }
  C. {master:0}[edit] user@router# show protocols bgp group External { multihop; local-address 192.168.2.1; peer-as 65532; neighbor 10.10.2.2; neighbor 10.20.2.2; } user@router# show routing-options static { route 0.0.0.0 next-hop [ 10.10.2.2 10.20.2.2 ]; } autonomous-system 65432;
  D. {master:0}[edit] user@router# show protocols bgp group External { multihop; local-address 192.168.2.1; peer-as 65532; multipath; neighbor 10.10.2.2; neighbor 10.20.2.2; } user@router# show routing-options static { route 0.0.0.0 next-hop [ 10.10.2.2 10.20.2.2 ]; } autonomous-system 65432;
  B. {master:0}[edit] user@router# show protocols bgp group External { multipath; peer-as 65532; neighbor 10.10.2.2; neighbor 10.20.2.2; }

• Question 242:

  -- Exhibit -

  {master:0}[edit]

  user@router# show class-of-service

  classifiers {

  inet-precedence normal-traffic {

  forwarding-class best-effort {

  loss-priority low code-points [ my1 my2 ];

  }

  }

  }

  code-point-aliases {

  inet-precedence {

  my1 000;

  my2 001;

  }

  }

  scheduler-maps {

  one {

  forwarding-class expedited-forwarding scheduler special; forwarding-class best-effort scheduler normal; }

  }

  schedulers {

  special {

  transmit-rate percent 30;

  priority strict-high;

  }

  normal {

  transmit-rate percent 70;

  priority low;

  }

  }

  -- Exhibit -

  Click the Exhibit button.

  The configuration in the exhibit shows incoming traffic with specific IP precedence bits that should be mapped to a forwarding class named best-effort.

  What must you add to complete this configuration?

  A. defined behaviors to the interfaces stanza in the class-of-service section
  B. rewrite-rules for the best-effort forwarding class
  C. a WRED drop-profile for the best-effort scheduler
  D. a firewall filter that matches and discards the original code point values
  A. defined behaviors to the interfaces stanza in the class-of-service section

• Question 243:

  Referring to the exhibit, All hosts have individually authenticated using 802.IX.

  

  Which supplicant mode is used on the switch?

  A. MAC RADIUS
  B. MULTIPLE
  C. SINGLE
  D. SINGLE SECURE
  B. MULTIPLE

• Question 244:

  -- Exhibit -

  20.0.0.0/8 *[BGP/170] 01:10:38, localpref 100, from 10.0.0.1 AS path: 100 I > to 15.0.0.2 via ge-0/0/0.0 [BGP/170] 00:00:59, localpref 100 AS path: 100 ? > to 35.0.0.2 via ge-0/0/1.0 -- Exhibit -

  Click the Exhibit button.

  Referring to the output in the exhibit, why does the router prefer the path toward interface ge- 0/0/0.0 for the 20.0.0.0/8 route?

  A. The origin is IGP.
  B. The origin is unknown.
  C. The AS path is longer.
  D. Multihop is enabled.
  A. The origin is IGP.

• Question 245:

  Voice traffic is coming in on UDP port 17689. This traffic must be classified into the expedited- forwarding forwarding class. Which type of classifier is needed?

  A. code point alias
  B. rewrite marker
  C. multifield
  D. behavior aggregate
  C. multifield

• Question 246:

  What must you use to facilitate this communication?

  A. multiarea link
  B. A multiarea adjacency
  C. virtual link
  D. A virtual private network
  C. virtual link

• Question 247:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  Based on the exhibit, why is R2 marking the routes coming from AS 200 as hidden?

  A. R3 has an import policy filtering all routes.
  B. R4 is not configured with a next-hop self policy.
  C. R2 does not have a route to the peer ID of R4.
  D. AS 200 is configured with the advertise-inactive option.
  C. R2 does not have a route to the peer ID of R4.

• Question 248:

  You are working with a new MPLS network that is using the default EXP classifier and default schedules. A small amount of traffic is being placed in the assured forwarding class. No other traffic is passing through the network at this time. In this scenario, what happens to the traffic that is being placed in the assured forwarding class?

  A. The traffic is reclassified to the best effort forwarding class and is forwarded.
  B. The traffic remains in the assured forwarding class and is forwarded.
  C. The traffic is reclassified to the network control forwarding class and is forwarded.
  D. The traffic remains in the assured forwarding class and is dropped.
  B. The traffic remains in the assured forwarding class and is forwarded.

• Question 249:

  Which protocol is used for port level access control and authentication?

  A. MD5
  B. IP sec
  C. 802 IX
  D. AES
  C. 802 IX

• Question 250:

  You have been asked to implement 802.1X in your network and to ensure that all authorized users continue to be permitted should the RADIUS server fail. Which solution will satisfy this requirement?

  A. Implement the persistent MAC feature with the override option.
  B. Implement the server fail fallback feature with the override option.
  C. Implement the persistent MAC feature with the use-cache option.
  D. Implement the server fail fallback feature with the use-cache option.
  D. Implement the server fail fallback feature with the use-cache option.