QUESTION 51
You have been asked to troubleshoot an OSPF problem where the OSPF session will not establish.
According to the outputs shown in the exhibit, which statement is true?
A. The hold-time interval is set too low.
B. There is an MTU mismatch.
C. The hold-time interval is set too high.
D. The dead-interval is set too low.
Answer: B
QUESTION 52
You are asked to configure an EBGP peering, but the peering does not establish and transitions between the Connect and Active states.
Referring to the exhibit, what is causing the problem?
A. The number of messages from the BGP peer has exceeded the receive socket buffer.
B. An incorrect local AS has been configured in the BGP group configuration.
C. BGP is waiting to receive a keepalive or notification message from the peer.
D. The BGP peer has an incorrect address configured, causing a connectivity failure.
Answer: D
QUESTION 53
You recently added your autonomous system to an existing BGP confederation. You notice that a route that had a local preference of 100 now has a local preference of 50. Which statement explains the change?
A. BGP path attributes such as next hop, local preference, and MED are normally restricted to a single
AS but are allowed to propagate throughout the confederation’s AS members.
B. The confederation has sub-ASs that require all IBGP routes to have a local preference of 50 or below.
C. When your Junos devices joined the confederation, they lost IBGP connectivity to the route in question;
the local preference reverted to 50 once the BGP peering established.
D. The route is being shared through an EBGP peer, and the confederation is propagating the local preference
from the peer.
Answer: A
QUESTION 54
Which two scenarios would explain the error shown in the exhibit? (Choose two.)
A. Packets were dropped in the receive path of the local router.
B. The local router received a route withdrawal from the peer.
C. Packets were dropped in the receive path of the peer router.
D. The local router egress interface towards the peer was congested.
Answer: CD
QUESTION 55
Referring to the exhibit, which statement is true about the multicast state on R3?
A. R3 has no PIM neighbors.
B. R3 has no receivers.
C. R3 has no route to RP.
D. R3 is not receiving any traffic
Answer: D
QUESTION 56
You have committed a configuration on router R1 as shown in the exhibit. However, it resulted in a (*, G) join for only one group (228.1.1.1) on R1.
Which additional configuration would result in the creation of a (*, G) join for the other group (232.1.1.1)?
A. Add relevant configurations for an SSM map.
B. Enable PIM version 1 on interface xe-5/2/0.0.
C. Configure another RP for the other group
D. Enable PIM on all interfaces.
Answer: A
QUESTION 57
You are experiencing packet drops in your network. Which two CoS components would be responsible? (Choose two.)
A. policing
B. RED
C. classification
D. rewriting
Answer: CD
QUESTION 58
You are a network administrator in charge of configuring CoS for your network. Your network includes a voice application with strict latency requirements, so that any packets delayed by more than 75 ms are effectively useless. When configuring the scheduler for this application, which feature ensures that you do not waste buffer space?
A. rate-limit
B. adaptive
C. latency-limit
D. temporal
Answer: D
QUESTION 59
Click the Exhibit button. You are the administrator of AS 65000. There are four links between your network (AS 65000) and your upstream provider (AS 65001). You have an import policy on all of your routers. The routing table on the customer router has four routes to the Web server as follows:
Router A: Local Pref 110, IGP Cost 1000
Router B: Local Pref 100, IGP Cost 200
Router C: Local Pref 110, IGP Cost 900
Router D: Local Pref 100, IGP Cost 1000
Through which link will traffic to the Web server leave your network (AS 65000) from the customer router?
A. Router A
B. Router B
C. Router C
D. Router D
Answer: C
QUESTION 60
Click the Exhibit button. Given the existing operational network shown in the exhibit, you now want to add a remote site for Customer B to the PE3 router. This change should not have an effect on the existing BGP sessions between the PE routers. Which Layer 3 VPN scaling mechanism allows PE3 to begin receiving Customer B routes?
A. route origin
B. route refresh
C. route reflection
D. route target filtering
Answer: B
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