Juniper Juniper Certifications JN0-102 Questions & Answers

• Question 141:

  Which operational command would you use to quickly verify the state of all interfaces?

  A. show interfaces terse

  B. show interfaces

  C. show configuration interfaces

  D. show interface status

  Correct Answer: A

• Question 142:

  You need to control SSH, HTTP, and Telnet access to an MX240 router through any interface. You have

  decided to use a firewall filter.

  How should you apply the firewall filter?

  A. as an outbound filter on interface fxp0

  B. as an outbound filter on interface lo0

  C. as an inbound filter on interface fxp0

  D. as an inbound filter on interface lo0

  Correct Answer: D

• Question 143:

  Which two statements are correct regarding default protocol preference values? (Choose two.)

  A. OSPF internal routes have a lower preference than static routes.

  B. Both direct and local routes have the same preference value.

  C. OSPF's preference value is lower than BGP.

  D. OSPF has a single preference value for both internal and external routes.

  Correct Answer: BC

• Question 144:

  -- Exhibit -[edit interfaces]

  user@router# show

  ...

  lo0 {

  unit 0 {

  familyinet {

  filter {

  input protect-loopback;

  }

  address 192.168.100.1/32;

  }

  }

  }

  -- Exhibit -Given the configuration shown in the exhibit, what is the function of the protect-loopback filter?

  A. to protect the Routing Engine

  B. to protect all interfaces on the device

  C. to protect the Packet Forwarding Engine

  D. to protect the management interface

  Correct Answer: A

• Question 145:

  Random early detection (RED) is associated with which class of service component?

  A. classification

  B. policing

  C. queuing

  D. scheduling

  Correct Answer: D

• Question 146:

  -- Exhibit -user@router# run show route /24 inet.0: 142 destinations, 142 routes (141 active, 0 holddown, 1 hidden)

  +

  = Active Route, - = Last Active, * = Both /24 *[OSPF/10] 04:10:20 >to 172.25.213.11 via ge-1/0/1.0 to 172.25.213.23 via ge-1/0/2.0 -- Exhibit -In the exhibit, what does the (>) symbol indicate?

  A.

  There is a software issue with ge-1/0/1.0 interface.

  B.

  There is a hardware issue with ge-1/0/1.0 interface.

  C.

  The next hop of 172.25.213.11 is selected.

  D.

  The next hop of 172.25.213.11 is not resolvable.

  Correct Answer: C

• Question 147:

  When using the monitor traffic command on Junos devices, which UNIX-based utility is accessed?

  A. snoop

  B. tcpdump

  C. monitor

  D. tail

  Correct Answer: B

• Question 148:

  What are the usable hosts on the .128.0/19 network?

  A. .128.1 through .143.254

  B. .128.128 through .134.254

  C. .128.0 through .134.254

  D. .128.1 through .159.254

  Correct Answer: D

• Question 149:

  -- Exhibit -[edit routing-options]

  user@router# show

  static {

  defaults {

  metric 10;

  preference 10;

  }

  route 10.10.10.0/24 {

  next-hop 192.168.100.1;

  qualified-next-hop 192.168.200.1;

  preference 6;

  }

  metric 8;

  }

  }

  -- Exhibit -

  Given the configuration shown in the exhibit, which statement is correct about traffic matching the route 10.10.10.0/24?

  A. It will be forwarded to 192.168.100.1 using a metric of 10.

  B. It will be forwarded to 192.168.100.1 using a metric of 8.

  C. It will be forwarded to 192.168.200.1 using a metric of 8.

  D. It will be forwarded to 192.168.200.1 using a metric of 10.

  Correct Answer: C

• Question 150:

  -- Exhibit -user@router> show route inet.0: 9 destinations, 9 routes (9 active, 0 holddown, 0 hidden)

  + = Active Route, - = Last Active, * = Both 10.10.10.91/32 *[Direct/0] 00:09:40 >via lo0.0 10.10.10.92/32 *[OSPF/10] 00:01:50, metric 1 >to 172.16.1.2 via ge-0/0/2.0 100.100.1.0/24 *[Static/5] 00:01:50 Reject 172.16.1.0/24 *[Direct/0] 00:06:09 >via ge-0/0/2.0 172.16.1.1/32 *[Local/0] 00:06:09 Local via ge-0/0/2.0 192.168.0.0/16 *[Aggregate/130] 00:00:06

  Reject 192.168.0.0/17 *[Aggregate/130] 00:00:06 >to 172.16.1.2 via ge-0/0/2.0 192.168.50.0/24 *[Static/5] 00:00:06 >to 172.16.1.2 via ge-0/0/2.0 192.168.51.0/24 *[Static/5] 00:00:06 >to 172.16.1.2 via ge-0/0/2.0 user@router> show configuration policy-options policy-statement demo { term 1 { from { route-filter 192.168.0.0/16 longer accept;

  }

  then reject; } } user@router> show configuration protocols ospf export demo; area 0.0.0.0 { interface ge-0/0/2.0; } -- Exhibit -Given the configuration and routing table shown in the exhibit, which routes will be advertised to OSPF

  neighbors because of the demo policy?

  A. 192.168.0.0/16 only

  B. 192.168.0.0/17 only

  C. 192.168.50.0/24 and 192.168.51.0/24

  D. 192.168.0.0/17, 192.168.50.0/24, and 192.168.51.0/24

  Correct Answer: D