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2021 Jun jn0-102 study guide pdf:
Q61. You have been asked to develop an application that uses only connection-oriented protocols.
Which two protocols can you use? (Choose two.)
A. PPP
B. UDP
C. TCP
D. ICMP
Answer: A,C
Q62. -- Exhibit --
user@router> restart
^
unknown command.
-- Exhibit --
You are investigating routing problems on a device running the Junos OS. You receive the error shown in the exhibit when you attempt to restart the routing process.
Which statement describes the problem?
A. You have typed an invalid command.
B. You must be in configuration mode to restart the routing process.
C. You do not have permission to restart the routing process.
D. You must wait until close of business to restart the routing process, based on user-defined policy.
Answer: C
Q63. Which command will display the contents of the forwarding table?
A. show route forwarding-table
B. show forwarding
C. show configuration
D. show interfaces
Answer: A
Q64. Which two commands allow you to return to a previous version of software on the device? (Choose two.)
A. request system software add
B. request system software downgrade
C. request system software replace
D. request system software rollback
Answer: A,D
Q65. Which statement is true regarding the forwarding plane?
A. The forwarding plane is contained within the Routing Engine (RE).
B. The forwarding plane processes and evaluates exception traffic.
C. The forwarding plane contains the Packet Forwarding Engine (PFE).
D. The forwarding plane is not present on all platforms running the Junos OS.
Answer: C
Improve jn0-102 exam:
Q66. -- Exhibit --
user@router> show route protocol static
inet.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.128/27 *[Static/5] 00:03:13 >to 10.20.106.10 via fe-0/0/5.1 192.168.1.144/29 *[Static/5] 00:03:13 >to 10.20.14.131 via ge-0/0/0.0 192.168.1.192/27 *[Static/5] 00:03:13 >to 10.18.1.1 via ge-0/0/1.0 192.168.1.128/28 *[Static/5] 00:01:06 >to 10.20.14.130 via ge-0/0/0.0 -- Exhibit --
Given the routing entries shown in the exhibit, which next-hop IP address will be used for the destination IP address 192.168.1.159? (Assume that only static routes are available for the destination.)
A. 10.20.14.130
B. 10.18.1.1
C. 10.20.14.131
D. 10.20.106.10
Answer: D
Q67. Which three statements are true about terms in a policy? (Choose three.)
A. The order of the terms in a policy is irrelevant.
B. The action is specified in a then statement.
C. Terms are optional in a policy.
D. The match condition can be identified with a from statement.
E. A from statement is mandatory in a term.
Answer: B,C,D
Q68. Which two commands are used during the password recovery process? (Choose two.)
A. clear system login
B. boot -s
C. recovery
D. delete system root-authentication
Answer: B,C
Q69. Which routing instance type is used to facilitate filter-based forwarding?
A. VRF
B. FBF
C. forwarding
D. no-forwarding
Answer: C
Q70. Which two statements are correct when you use the reject parameter as the next-hop value for a static route? (Choose two.)
A. The packet is dropped and the packet's source is marked with the no-readvertise parameter.
B. The system sends the packet back to the source.
C. The packet is dropped from the network.
D. The system sends an ICMP message back to the source of the packet.
Answer: C,D