Which Junos command is used to configure STP on a specific interface?

set interfaces ge-0/0/1 stp enable

set protocols stp interface ge-0/0/1

set interfaces ge-0/0/1 unit 0 family ethernet-switching stp

An administrator has configured a LAG between two switches using LACP. The LAG is up, but traffic is not load-balancing evenly across the links. The administrator wants to improve load balancing. Which configuration change would help?

Increase the number of LAG members.

Change the load-balancing algorithm to use source and destination MAC addresses.

Disable LACP and use a static LAG.

What is the purpose of port security features on a switch?

To increase the speed of the port

To provide redundancy for the port

To prioritize traffic on the port

To prevent unauthorized devices from connecting to the network

A switch has two links to another switch, one of which is a 10 Gbps link and the other is a 1 Gbps link. The administrator wants the 10 Gbps link to be the forwarding port and the 1 Gbps link to be the blocking port. Which STP configuration on the 10 Gbps interface would achieve this?

Set 'cost 100' on the 10 Gbps interface.

Set 'edge' on the 10 Gbps interface.

Set 'cost 2000' on the 10 Gbps interface.

Set 'priority 0' on the 10 Gbps interface.

Juniper NetworksCertified Specialist, Enterprise Routing and Switching (JNCIS-ENT)

Domain 1Objective 7

Configure, Monitor, or Troubleshoot Layer 2 Interfaces and Ports JN0-352 Practice Questions (Page 4)

Part of the Layer 2 Switching and VLANs domain, which makes up ~15% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–9 in this domain), expect 1–1 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

8concepts

Questions 16–20

16foundation · easy
Which Junos command is used to configure STP on a specific interface?
Select an answer first
17expert · medium
A switch port is configured as a trunk with 'vlan members [10 20]' and 'native-vlan 30'. A device connected to this port sends untagged traffic. Which VLAN will the traffic be associated with?
Select an answer first
18expert · hard
An administrator has configured a LAG between two switches using LACP. The LAG is up, but traffic is not load-balancing evenly across the links. The administrator wants to improve load balancing. Which configuration change would help?
Select an answer first
19foundation · easy
What is the purpose of port security features on a switch?
Select an answer first
20application · medium
A switch has two links to another switch, one of which is a 10 Gbps link and the other is a 1 Gbps link. The administrator wants the 10 Gbps link to be the forwarding port and the 1 Gbps link to be the blocking port. Which STP configuration on the 10 Gbps interface would achieve this?
Select an answer first

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