Juniper Juniper Certifications JN0-343 Questions & Answers

• Question 61:

  Which three port states of RSTP are valid? (Choose three.)

  A. discarding

  B. listening

  C. flooding

  D. learning

  E. forwarding

  Correct Answer: ADE

• Question 62:

  -- Exhibit -

  user@R1> show route 66.129.0.0/22 exact detail

  inet.0: 12 destinations, 12 routes (11 active, 0 holddown, 1 hidden)

  66.129.0.0/22 (1 entry, 1 announced)

  *Aggregate PreferencE. 130

  Next hop typE. Reject

  Next-hop reference count: 2

  StatE.

  AgE. 1:39:21

  Task: Aggregate

  Announcement bits (1): 0-KRT

  AS path: I (LocalAgg)

  Flags: Depth: 0 Active

  AS path list:

  AS path: I Refcount: 3

  Contributing Routes (3):

  66.129.0.0/24 proto Direct

  66.129.1.0/24 proto Direct

  66.129.2.0/24 proto Direct

  -- Exhibit -

  In the exhibit, R1 receives a packet with a destination address of 66.129.3.1.

  Which action does R1 take on the packet?

  A. R1 rejects the packet and sends an unreachable message back to the source.

  B. R1 forwards the packet to the next hop associated with the primary contributing route.

  C. R1 forwards the packet to the next hop associated with the contributor with the lowest RID.

  D. R1 silently discards the packet.

  Correct Answer: A

• Question 63:

  Referring to the exhibit, Router-1 is receiving BGP routes from Router-2. These BGP routes should be passed from Router-1 to Router-3. However, the 172.16.20.4/30 route is not being passed on to Router-3.

  

  Why is this problem occurring?

  A. The 172.16.20.4/30 route has an unusable next hop on Router-1.

  B. The keep-all statement is not configured on Router-3.

  C. The import policy on Router-3 is configured incorrectly.

  D. The 172.16.20.4/30 route is not active on Router-1.

  Correct Answer: D

• Question 64:

  Referring to the exhibit, which router becomes the OSFP DR when all routers are powered on at the same time?

  

  A. R4

  B. R3

  C. R2

  D. R1

  Correct Answer: C

• Question 65:

  -- Exhibit -[edit routing-options martians]

  user@router# show

  23.0.0.0/8 longer;

  24.0.0.0/8 orlonger;

  25.0.0.0/8 exact;

  26.0.0.0/8 prefix-length-range /8-/16;

  -- Exhibit -Referring to the exhibit, which route is eligible for installation on the local inet.0 routing table?

  A. 23.0.0.0/8

  B. 24.0.0.0/8

  C. 25.0.0.0/8

  D. 26.0.0.0/8

  Correct Answer: A

• Question 66:

  You configured a GRE tunnel that traverses a path using default MTU settings. You want to ensure that packets are not dropped or fragmented. In this scenario, what is the maximum packet size that would traverse the GRE tunnel?

  A.

  B.

  C.

  D.

  Correct Answer: C

• Question 67:

  -- Exhibit -

  user@router> show ospf database

  OSPF database, Area 0.0.0.0

  Type ID Adv Rtr Seq Age Opt Cksum Len

  Router 5.5.5.5 5.5.5.5 0x80000007 471 0x22 0x180 60

  Router *66.129.12.2 66.129.12.2 0x80000010 470 0x22 0xeb7 48 Network *66.129.12.2 66.129.12.2 0x80000006 470 0x22 0x248 32 Network *172.16.12.110 66.129.12.2 0x80000009 470 0x22 0xcb7 32 OpaqArea 1.0.0.1 5.5.5.5 0x80000003 471 0x22 0x3cc 28 -- Exhibit -Referring to the exhibit, which two statements are true? (Choose two.)

  A. The local router has OSPF traffic engineering enabled.

  B. The local router is originating two database entries.

  C. The local router is originating three database entries.

  D. The local router has OSPF traffic engineering disabled.

  Correct Answer: CD

• Question 68:

  Which two statements are correct regarding the default behavior of an EX Series switch? (Choose two.)

  A. All interfaces are set as access ports.

  B. No interfaces are assigned to a VLAN

  C. All interfaces are set as trunk ports.

  D. All interfaces are members of the default VLAN.

  Correct Answer: BD

• Question 69:

  What are three advantages of RSTP over STP? (Choose three.)

  A. RSTP introduces the alternate port role, which provides additional bandwidth for traffic heading to the root bridge.

  B. RSTP allows an alternate link to immediately transition to the forwarding state if the point-to-point link fails.

  C. RSTP allows a port to be an edge port when it connects to a LAN with no other bridges.

  D. RSTP introduces the backup port role, which allows multiple ports to pass traffic into the same LAN segment at the same time.

  E. RSTP introduces the backup port role, which allows a second port on the shared LAN segment to act as a backup port.

  Correct Answer: BCE

• Question 70:

  Referring to the exhibit, which type of route is displayed?

  

  A. generate

  B. static

  C. martian

  D. aggregate

  Correct Answer: D