Juniper Juniper Certifications JN0-104 Questions & Answers

• Question 11:

  When you choose to read your e-mail using an e-mail client, your e-mail client interacts with which OSI layer?

  A. presentation

  B. transport

  C. application

  D. session

  Correct Answer: B

• Question 12:

  After logging in as root, you enter the cl i command. What does this command do?

  A. A. It enables you to enter configuration mode.

  B. B. It enables you to enter line edit mode.

  C. C. It enables you to enter operational mode.

  D. D. It enables you to enter interface mode.

  Correct Answer: C

• Question 13:

  Which system-defined user class is able to perform all operations on a device?

  A. operator

  B. authorized

  C. read-write

  D. super-user

  Correct Answer: D

• Question 14:

  Click the Exhibit button.

  

  What happens if the packet shown in the exhibit is received by a device running Junos OS?

  A. The packet is received by the RE first and then redirected to the PFE.

  B. The packet is received by the PFE first and then redirected to the RE.

  C. The packet is handled by the PFE alone.

  D. The packet is handled by the RE alone.

  Correct Answer: B

  IP options are exception traffic Packets addressed to the chassis, such as routing protocol updates, Telnet sessions, pings, traceroutes, and replies to traffic sourced from the RE; IP packets with the IP options field (options in the packet's IP header are rarely seen, but the PFE was purposely designed not to handle IP options; packets with IP options must be sent to the RE for processing); and Traffic that requires the generation of Internet Control Message Protocol (ICMP) messages.

• Question 15:

  What are two benefits of a modular operating system? (Choose two.)

  A. A malfunction in one module causes a full system shutdown.

  B. Each module runs in its own protected memory space.

  C. It enables the independent restart of each module as necessary.

  D. It enables CPU scheduling strictly using kernel system calls.

  Correct Answer: BC

  Ref: Junos OS Overview | Junos OS | Juniper Networks

  "Junos OS Overview ...

  Modular Software Architecture

  Although individual architecture modules of Junos OS communicate through well- defined interfaces, each module runs in its own protected memory space, preventing one module from disrupting another. It also enables the independent

  restart of each module as necessary.

  ..."

• Question 16:

  Which Junos OS routing instance type is used for non-VPN-related applications such as system virtualization?

  A. vpls

  B. forwarding

  C. virtual-router

  D. vrf

  Correct Answer: C

• Question 17:

  Your Junos OS routers use a static route to provide connectivity to the management network. You do not want this static route to be redistributed using a dynamic routing protocol. In this scenario, which static route configuration parameter will accomplish this task?

  A. A. no-install

  B. B. no-retain

  C. C. no-resolve

  D. D. no-readvertise

  Correct Answer: C

• Question 18:

  Click the Exhibit button.

  

  Which two statements about the output shown in the exhibit are correct? (Choose two.)

  A. The neighbors are not using the Junos OS default OSPF priority value.

  B. The IP address assigned to the router's ge-0/0/1.0 interface is 172.25.1.9.

  C. The router has two OSPF adjacencies.

  D. The router ID of the neighbor connected to the ge-0/0/1.0 interface is 192.168.100.3.

  Correct Answer: AC

• Question 19:

  What is a function of the PFE?

  A. to generate protocol control traffic

  B. to monitor chassis components

  C. to apply stateless firewall filters

  D. to generate forwarding tables

  Correct Answer: C

• Question 20:

  Which two routing policy actions are considered policy flow control actions in the Junos OS? (Choose two.)

  A. accept

  B. next hop

  C. next policy

  D. next term

  Correct Answer: AB

  https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/concept/policy- configuring-actions-in-routing-policy-terms.html