Free Juniper JN0-348 Study Guides Exam Questions & Answer [Q19-Q37]

Free Juniper JN0-348 Study Guides Exam Questions & Answer

JN0-348 Exam Dumps, JN0-348 Practice Test Questions

Juniper Enterprise Routing and Switching Certification Path: Excellent Track, but What Does It Entail?

The Juniper Enterprise Routing and Switching certification path allows trainees to showcase their proficiency in working with Juniper Networks technology. This track focuses on routing and switching as part of the overall Juniper Networks enterprise solutions. So, if you are keen to merge the two skills and also demonstrate your troubleshooting flair, this is the way to go.

Juniper JN0-348 Exam Topics:

Section	Objectives
Layer 2 Switching or VLANs	Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS Bridging components Frame processing Describe the concepts, benefits, or functionality of VLANs Ports Tagging Native VLANs and voice VLANs Inter-VLAN routing Demonstrate knowledge how to configure, monitor or troubleshoot Layer 2 switching or VLANs Interfaces and ports VLANs Junos Network Director Inter-VLAN Routing
Layer 2 Security	Identify the concepts, benefits or operation of various Layer 2 protection or security features BPDU, loop or root protection Port security, including MAC limiting, DHCP snooping, Dynamic ARP inspection (DAI) or IP source guard MACsec Storm control Identify the concepts, benefits or operation of Layer 2 firewall filters Filter types Processing order Match criteria and actions Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security Protection Port security Storm control Firewall filter configuration and application
Protocol Independent Routing	Identify the concepts, operation or functionality of various protocol-independent routing components Static, aggregate, and generated routes Martian addresses Routing instances, including RIB groups Load balancing Filter-based forwarding Demonstrate knowledge how to configure, monitor, or troubleshoot various protocol-independent routing components Static, aggregate, and generated routes Load balancing Filter-based forwarding
IS-IS	Describe the concepts, operation or functionality of IS-IS Link-state database IS-IS PDUs TLVs Adjacencies and neighbors Levels and areas Designated intermediate system (DIS) Metrics Demonstrate knowledge of how to configure, monitor or troubleshoot IS-IS Levels, interfaces and adjacencies Additional basic options Routing policy application Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)
OSPF	Describe the concepts, operation or functionality of OSPF Link-state database OSPF packet types Router ID Adjacencies and neighbors Designated router (DR) and backup designated router (BDR) OSPF area and router types Realms LSA packet types Demonstrate knowledge how to configure, monitor or troubleshoot OSPF Areas, interfaces and neighbors Additional basic options Routing policy application Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)
BGP	Describe the concepts, operation or functionality of BGP BGP basic operation BGP message types Attributes Route/path selection process IBGP and EBGP functionality and interaction Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP Groups and peers Additional basic options Routing policy application Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)
High Availability	Identify the concepts, benefits, applications or requirements for high availability in a Junos OS environment Link aggregation groups (LAG) Redundant trunk groups (RTG) Virtual Chassis Graceful restart (GR) Graceful Routing Engine switchover (GRES) Nonstop active routing (NSR) Nonstop bridging (NSB) Bidirectional Forwarding Detection (BFD) Virtual Router Redundancy Protocol (VRRP) Unified In-Service Software Upgrade (ISSU) Demonstrate knowledge of how to configure, monitor, or troubleshoot high availability components LAG and RTG Virtual Chassis GR, GRES, NSB, and NSR VRRP ISSU Troubleshooting tools (e.g., trace options, show commands, logging)
Spanning Tree	Describe the concepts, benefits, operation, or functionality of the Spanning Tree Protocol STP and RSTP concepts Port roles and states BPDUs Convergence and reconvergence Demonstrate knowledge how to configure, monitor, or troubleshoot STP and RSTP STP RSTP
Tunnels	Identify the concepts, requirements or functionality of IP tunneling Tunneling applications and considerations GRE/UDP IP-IP Demonstrate knowledge of how to configure, monitor or troubleshoot IP tunnels GRE/UDP IP-IP Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)

NEW QUESTION 19
You want to use filter-based forwarding (FBF) to forward traffic sourced from subnet 10.0.0.0/24 to a specific destination.
Which two routing instance types would enable you to accomplish this task? (Choose two.)

A. virtual routing and forwarding
B. virtual router
C. virtual switch
D. forwarding

Answer: A,D

NEW QUESTION 20
Exhibit.

Which statement is true about the configuration shown in the exhibit?

A. 172.30.25.5.1 is the preference next hop.
B. The preference for the 172.30.25.1 next hop is 5.
C. The preferred next hop is 172.30.25.5.
D. The preference for the 172.30.25.5.1 next hop is 7.

Answer: C

NEW QUESTION 21
Click the Exhibit button.

Referring to the exhibit, Router-1 and Router-2 are failing to form an IS- IS adjacency.
What should you do to solve the problem?

A. Change the IP subnet masks to match on the ge-0/0/2 interfaces of both routers.
B. Change the ISO areas on the Io0 interfaces to match on both routers.
C. Remove the overloaded statement from Router-1.
D. Remove the ISO address fromge-0/0/2 on Router-1

Answer: D

NEW QUESTION 22
Click the Exhibit button.

Referring to the exhibit, which policy will export routes to IBGP peers?

A. tatic-1
B. static-4
C. static-2
D. static-3

Answer: B

NEW QUESTION 23
What are three components that populate the Ethernet switching table? (Choose three.)

A. the time the address was learned
B. the MAC address of the source node
C. the link state
D. the MAC address of the destination node
E. the interface on which the traffic was received

Answer: A,B,E

NEW QUESTION 24
Click the Exhibit button.

Referring to the exhibit, all users connected to the same VLAN can communicate with each other, but not with users on other VLANs in this network.
What must be configured to enable communication between the VLANs?

A. A separate routing device is required to forward traffic between the configured VLANs.
B. A logical IRB interface must be created and assigned to each VLAN.
C. The switch ports to which the users are connected should be configured as trunk ports.
D. A single logical IRB interface must be created and assigned to all three VLANs.

Answer: B

NEW QUESTION 25
You notice that there are currently two MAC addresses associated with a single access port in the bridge table on one of your EX Series switches.
What are two explanations for this behavior? (Choose two.)

A. The native VLAN feature has been associated with the access port.
B. The access port connects to an IP phone which connects to a host device.
C. The access port connects to multiple hosts through a rogue device.
D. The mac-move-limit feature has been disabled on the access port.

Answer: A,C

NEW QUESTION 26
Exhibit.

A number of reports from end users indicate that internal and external communications are intermittent and not reliable. You verified the status of the switch ports and have determined that they are up and operational. You also noticed a very high level of link bandwidth utilization on those same ports. The current topology of the affected environment is shown in the exhibit.
What would be the cause of the reported issues?

A. A misconfigured interior gateway protocol (IGP).
B. A malformed route-based ACL Improperly filtering traffic flows.
C. A lack of port-based ACLs filtering the traffic flows.
D. A lack of a loop-prevention mechanism or protocol.

Answer: D

NEW QUESTION 27
Click the Exhibit button.

You are asked to change the default behavior of your trunk port (ge-0/0/1) to now pass untagged traffic.
Which configuration would accomplish this task?

A. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members native_v1
B. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members native
C. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members 1
D. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members vlan.1

Answer: C

NEW QUESTION 28
You want to advertise only a default route into a new area, which will be called area 7. In this scenario, which configuration statement would solve this problem?

A. user@host# set protocols ospf area 0.0.0.7 stub
B. user@host# set protocols ospf area 0.0.0.7 stub no-summaries
C. user@host# set protocols ospf area 0.0.0.7 nssa default-lsa default-metric
D. user@host# set protocols ospf area 0.0.0.7 stub default-metric 10

Answer: C

NEW QUESTION 29
Which statement is correct about the ISO NET address shown in the exhibit?

A. The system identifier is 6800.1001.00
B. The area identifier is 0001
C. The authority and format identifier (AFI) is 00
D. This is not a valid NET address

Answer: B

NEW QUESTION 30
Exhibit.
family iso {
address 49.0001.1921.6800.1001.00;
}
Which statement is correct about the ISO NET address shown in the exhibit?

A. This is not a valid NET address.
B. The authority and format identifier (AFI) is 00.
C. The area identifier is 0001.
D. The system identifier is 6800.1001.00.

Answer: C

NEW QUESTION 31
Click the Exhibit button.

Referring to the exhibit, what is the problem?

A. LACP is required for LAG to work.
B. Aggregated interfaces must be defined under the chassis stanza.
C. The LAG member interfaces are configured across different line cards.
D. LAG requires more than two member links.

Answer: B

NEW QUESTION 32
Exhibit.
***Exhibit is Missing***
Which two statements about BGP prefixes advertise by R1 to AS 65501 are true? (Choose two.)

A. R1 will modify the AS path attribute in prefixes advertised to AS 65501.
B. R1 will modify the originator ID attribute in prefix advertised to AS 65501.
C. R1 will modify the cluster list attribute in prefixes advertised to AS 65501.
D. R1 will modify the originator ID attribute in prefixes advertised to AS 65501.

Answer: B,D

NEW QUESTION 33
The configuration shown in the exhibit was committed on an EX Series switch. You are notified that the phone using the voice VLAN does not work. You determine that voice traffic is not passing through the local switch.

What should be done to solve the problem?

A. You should change the voice VLAN ID to match the data VLAN ID.
B. You should add the voice VLAN as a member on the ge-0/0/8.0 interface.
C. You should change the port mode on ge-0/0/9.0 totrunk.
D. You should add the voice VLAN as a member on the ge-0/0/9.0 interface.

Answer: B

NEW QUESTION 34
Click the Exhibit button.

Referring to the exhibit, what will be the IS-IS adjacency result of the configurations?

A. No IS-IS adjacencies will form.
B. A level 1 IS-IS adjacency will form.
C. A level 2 IS-IS adjacency will form.
D. A level 1 and level 2 IS-IS adjacency will form.

Answer: A

NEW QUESTION 35
Which two characteristics are true for EBGP peerings? (Choose two.)

A. EBGP connects peer devices in two different autonomous systems.
B. EBGP peers must be directly connected.
C. EBGP peers can be connected over a multihop connection.
D. EBGP connects peer devices in the same autonomous system.

Answer: A,C

NEW QUESTION 36
Referring to the exhibit, which configuration will force traffic to always use ae0.0 as long as it is active?

A. user@switchC# show switch-options
redundant-trunk-group {
group rtg1 {
interface ge-0/0/0.0 {
track {
interface ae0.0;
}
}
interface ae0.0;
}
}
B. user@switchC# show switch-options
redundant-trunk-group {
group rtg1 {
interface ge-0/0/0.0;
interface ae0.0 {
primary;
}
}
}
C. user@switchC# show switch-options
redundant-trunk-group {
group rtg1 {
interface ge-0/0/0.0 {
priority200;
}
interface ae0.0 {
priority 254;
}
}
}
D. user@switchC# show switch-options
redundant-trunk-group {
group rtg1 {
interface ge-0/0/0.0;
interface ae0.0 {
minimum-links 2;
}
}
}

Answer: B

NEW QUESTION 37
......

Test Objectives: What Does It Cover?

In summary, JN0-348 exam is meant to give painstaking coverage of the certification concepts by following the recommended curriculum. And to achieve this, it focuses on the following concepts: