Juniper JN0-361 Online Practice Questions and Exam Preparation

Juniper JN0-361 Online Questions & Answers

• Question 1:

  Which two statements are true about unified in-service software upgrade (ISSU)? (Choose two.)

  A. Unified ISSU is supported only on dual Routing Engine (RE) platforms
  B. To perform a unified ISSU, it is not necessary for the master RE and backup RE to be running the same version of the Junos OS
  C. Unified ISSUE causes minimal disruption on both the control and forwarding planes
  D. Graceful Routing Engine Switchover (GRES) and nonstop active routing (NSR) must be enabled to perform a unified ISSU
  A. Unified ISSU is supported only on dual Routing Engine (RE) platforms
  D. Graceful Routing Engine Switchover (GRES) and nonstop active routing (NSR) must be enabled to perform a unified ISSU

• Question 2:

  Which statement is true about link aggregation?

  A. It facilitates control plane redundancy through link aggregation
  B. It provides an active-passive failover mechanism for redundant Layer 2 links
  C. It combines multiple Ethernet interfaces into a single link-layer interface
  D. It combines multiple Ethernet interfaces into a multilink-layer interface.
  C. It combines multiple Ethernet interfaces into a single link-layer interface

• Question 3:

  What is the default value of the TTL in a VRRP advertisement?

  B. 1
  C. 64
  D. 255
  D. 255

• Question 4:

  You have recently installed a second Routing Engine (RE) in your Junos device and implemented Graceful Routing Engine Switchover (GRES).

  Which two statements correctly describe the expected behavior if the primary RE fails? (Choose two.)

  A. The backup RE will assume the master role once the packet forwarding engine (PFE) restarts
  B. The backup RE will immediately assume the master role
  C. The new master RE restarts the routing protocol process (rpd) and establishes any required adjacencies based on the configuration.
  D. The new master RE maintains the existing protocol adjacencies initially established by the previous master RE
  B. The backup RE will immediately assume the master role
  C. The new master RE restarts the routing protocol process (rpd) and establishes any required adjacencies based on the configuration.

• Question 5:

  Which two statements are true about nonstop active routing (NSR)? (Choose two.)

  A. Graceful Routing Engine Switchover (GRES) must be configured for NSR to function properly
  B. NSR and graceful restart can be enabled at the same time
  C. NSR relies on helper support on neighboring devices
  D. When NSR is enabled, the rpd process runs on the backup Routing Engine
  A. Graceful Routing Engine Switchover (GRES) must be configured for NSR to function properly
  D. When NSR is enabled, the rpd process runs on the backup Routing Engine

• Question 6:

  What is a requirement for link aggregation?

  A. Member links must be on contiguous ports
  B. Member links must be on the same switch in a Virtual Chassis
  C. The speed of the member links must be the same
  D. LACP must be configured
  C. The speed of the member links must be the same

• Question 7:

  You have an OSPF network. On certain applications and links, you need OSPF recovery to be faster than can be provided by OSPF timers. Which protocol would meet this requirement?

  A. BFD
  B. OSPFv3
  C. GRES
  D. NSR
  A. BFD

• Question 8:

  On a Junos device with dual Routing Engine (RE), which two statements correctly describe the expected behavior if the primary RE fails? (Choose two.)

  A. The backup RE will assume the master role once the packet forwarding engine (PFE) restarts
  B. The backup RE will immediately assume the master role
  C. The new master RE restarts the routing protocol process (rpd) and establishes any required adjacencies based on the configuration.
  D. The new master RE maintains the existing protocol adjacencies initially established by the previous master RE
  A. The backup RE will assume the master role once the packet forwarding engine (PFE) restarts
  C. The new master RE restarts the routing protocol process (rpd) and establishes any required adjacencies based on the configuration.

• Question 9:

  Which three statements are true of GRE tunnels? (Choose three.)

  A. The local tunnel endpoint must have a valid route to the remote endpoint
  B. GRE tunnels must authenticate at both ends fo the tunnel
  C. Tunnel endpoints must have a route that directs traffic into a tunnel
  D. The gr interface can only route packets that are IP protocol packets
  E. All intermediary devices must have a route to the tunnel endpoints
  A. The local tunnel endpoint must have a valid route to the remote endpoint
  C. Tunnel endpoints must have a route that directs traffic into a tunnel
  E. All intermediary devices must have a route to the tunnel endpoints

• Question 10:

  How much overhead does the IP-IP tunnel header add to an IPv4 packet?

  A. 20 bytes
  B. 32 bytes
  C. 48 bytes
  D. 64 bytes
  A. 20 bytes