[Jan 26, 2022] Verified JN0-348 dumps and 95 unique questions
JN0-348 Dumps for Pass Guaranteed - Pass JN0-348 Exam 2022
2. Junos Enterprise Switching (JEX)
The Junos Enterprise Switching (JEX) is the second course associated with the Junos JN0-348 exam. Like the first class, it is also a two-day training program but with an emphasis on switching knowledge and the relevant configuration skills. It includes in-depth coverage of switching concepts, the Spanning Tree Protocol (STP), virtual LANs, and the features of high availability as well as device security. The training is exclusively centered on the Junos OS Release 20.1R1.11 and features interactive demonstrations alongside hands-on labs to ensure candidates are aptly prepared to face their exams. If you have already acquired the basic routing skills and are now looking to prove your ability to manage or troubleshoot networks, this training is the way forward. All in all, this course targets IT specialists of two groups:
- Individuals with fundamental knowledge of the OSI model and TCP/IP protocol suite;
- Candidates who have already attempted and passed the Introduction to Junos Operating System (IJOS) lessons.
Also, you should be proficient in knowing with the relevant Juniper products before registering for this training: Junos OS, EX Series, and Switching. As for the course content, on the 1st day of your training, you can expect the instructors to start by introducing the course before addressing Switching Concepts, Virtual Networks, and the Spanning Tree. The real task, however, lies on the second day, where the trainers will now cover the topics of Port Security, Device Security and Firewall Filters, Virtual Chassis, and High Availability. Here, self-motivated candidates who have already mastered the objectives of MAC Limiting, MACsec, Storm Control, Firewall Filters, and Nonstop Bridging (NSB) among other skills will find it easier to grasp the tested concepts.
NEW QUESTION 35
What are two methods for reducing the size of an OSPF link-state database? (Choose two.)
- A. Use stub areas where possible.
- B. Use identical link metrics where possible.
- C. Use point-to-point interface types where possible
- D. Use unique router IDs where possible.
Answer: A,C
NEW QUESTION 36
Which two statements are correct about redundant trunk groups on EX Series switches? (Choose two.)
- A. Layer 2 control traffic is permitted on the secondary link.
- B. If the active link fails, then the secondary link automatically takes over.
- C. Redundant trunk groups use spanning tree to provide loop-free redundant uplinks.
- D. Redundant trunk groups load balance traffic across two designated uplink interfaces.
Answer: A
Explanation:
A: While data traffic is blocked on the secondary link, Layer 2 control traffic is still permitted. For example, an LLDP session can be run between two switches on the secondary link.
B: The redundant trunk group is configured on the access switch and contains two links: a primary or active link, and a secondary link. If the active link fails, the secondary link automatically starts forwarding data traffic without waiting for normal spanning-tree protocol convergence.
http://www.juniper.net/documentation/en_US/junos13.2/topics/concept/cfm-redundant-trunk- groups-understanding.html
NEW QUESTION 37
Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)
- A. If the IP address in the ARP packet is deemed invalid
- B. If the requested MAC address exceeds the configured limit on the port
- C. If no IP-to-MAC address entry exists in the DHCP snooping database
- D. If the ARP packet comes from a port that has been configured as trusted
Answer: B,C
NEW QUESTION 38
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 39
Which two statements describe the BGP Local Preference attribute? (Choose two.)
- A. The attribute can be altered through a BGP configuration or using a policy.
- B. The attribute can be used to direct all outbound traffic through a specific peer.
- C. The attribute can be given a higher preference by configuring a lower numerical value.
- D. The attribute is transmitted across EBGP links.
Answer: A,B
NEW QUESTION 40
What would cause the status of interface ge-0/0/8 as shown in the exhibit?
- A. Interface ge-0/0/8 has a firewall filter in place that is blocking traffic.
- B. Interface ge-0/0/8 is administratively disabled and is not forwarding traffic.
- C. Interface ge-0/0/8 is connected to the same LAN as one of the other ports.
- D. Interface ge-0/0/8 isphysically down and is not forwarding traffic.
Answer: C
NEW QUESTION 41
Referring to the outputs shown in the exhibit, which statement is correct?
- A. The switch is the only switch in the RSTP topology.
- B. The switch's bridge priority is 4k.
- C. The switch is not the root bridge.
- D. The switch's bridge priority is 16k.
Answer: C
NEW QUESTION 42
Which two statements are true about DIS elections in IS-IS? (Choose two.)
- A. If a priority tie occurs, the router with the lower subnetwork point of attachment (SNPA) value becomes the DIS.
- B. The router with the lower priority value becomes the DIS.
- C. The router with the higher priority value becomes the DIS.
- D. If a priority tie occurs, the router with the higher subnetwork point of attachment (SNPA) value becomes the DIS.
Answer: C,D
NEW QUESTION 43
Click the Exhibit button.
Referring to the output shown in the exhibit, which statement is correct?
- A. 11.0.0.102/32 is being per-packet load-balanced
- B. 11.0.0.108/32 is being per-packet load-balanced
- C. 11.0.0.102/32 is being per-flow load-balanced
- D. 11.0.0.108/32 is being per-flow load-balanced
Answer: B
NEW QUESTION 44
Exhibit.
Click the Exhibit button Referring to the exhibit, what will be the IS-IS adjacency result of the configurations?
- A. A level 2 IS4S adjacency will form
- B. No IS-IS adjacencies will form
- C. A level 1 IS-IS adjacency will form
- D. A level 1 and level 2 IS-IS adjacency will form
Answer: B
NEW QUESTION 45
Exhibit.
***Exhibit is Missing***
A recent security audit indicates that peer-to-peer applications are allowed on the guest VLAN and employee may have been using the guest VLAN for this purpose. You deploy the configuration shown in the exhibit., but it does not stop the peer-to-peer traffic.
In this scenario, what must you do to implement the security policy?
- A. Implement 802.1X on the guest VLAN.
- B. Deploy storm control to block unknown unicast traffic.
- C. Attach the filter to the VLAN.
- D. Use persistent MAC learning.
Answer: A
NEW QUESTION 46
Exhibit.
***Exhibit is Missing***
Referring to the output shown in the exhibit, which two statements are true? (Choose two.)
- A. The route is a generate route.
- B. The route is an aggregate route
- C. The route is not active.
- D. The route is active
Answer: B,C
NEW QUESTION 47
Which statement is true about load balancing of equal cost paths?
- A. The maximum-paths parameter must be configured under the routing-optionshierarchy.
- B. A load-balancing policy must be configured under the policy-optionshierarchy.
- C. Traffic is balanced across equal cost paths by default.
- D. The route preference parameter must be manually set to the same value.
Answer: C
NEW QUESTION 48
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: D
NEW QUESTION 49
Click the Exhibit button.
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
Explanation:
Explanation/Reference: https://www.juniper.net/documentation/en_US/junos/topics/concept/is-is-routing-overview.html
NEW QUESTION 50
You are unable to establish a BGP session between R2 and ISP-B.
Referring to the exhibit, what must be changed in the configuration?
- A. A local address statement with the lo0 address must be added to R2 undergroup external-a.
- B. An import policy statement must be added to R2 undergroup external-ato allow ISP-B to peer.
- C. Thetype externalstatement must be added to R2 undergroup external-b.
- D. Thepeer-asstatement needs the AS number for ISP-B.
Answer: D
NEW QUESTION 51
Which OSPF packet type is sent when an OSPF router detects its database is stale?
- A. hello
- B. link-state acknowledgment
- C. link-state request
- D. database description
Answer: C
NEW QUESTION 52
You must implement filter-based forwarding. You need to direct traffic from 192.168.1.0/24 through vr1 and traffic from 10.210.0.128/26 through vr2.
Which configuration is correct in this scenario?
A)
B)
C)
D)
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: C
NEW QUESTION 53
Which two statements are true about high availability on Junos devices? (Choose two.)
- A. BFD is faster at detecting failures than default GRE or OSPF timers.
- B. NSR is dependent on helper routers to assist the routing platform in restoring routing protocol information.
- C. BFD is slower at detecting failures than default GRE or OSPF timers.
- D. NSR is independent of helper routers to assist the routing platform in restoring routing protocol information.
Answer: A,D
Explanation:
Explanation
https://www.juniper.net/documentation/en_US/junos/topics/concept/nsr-overview.html
NEW QUESTION 54
Referring to the exhibit, which three statements are true? (Choose three.)
- A. The switch cannot be managed through the production network.
- B. Frames on interface ge-0/0/0 can be tagged with VLAN ID 101.
- C. There are no active ports in the default VLAN.
- D. Frames on interface ge-0/0/2 can be tagged with VLAN ID 101 or VLAN 1.
- E. Interface ge-0/0/1 is an access port.
Answer: A,B,E
NEW QUESTION 55
Your network is configured with dynamic ARP inspection (DAI) using the default parameters for all the DHCP and ARP related configurations. You just added a new device connected to a trunk port and configured it to obtain an IP address using DHCP.
Which two statements are correct in this scenario? (Choose two.)
- A. DAI validates the ARP packets for the new device against the DHCP snooping database.
- B. DHCP snooping adds the DHCP assigned IP address for the device to its database.
- C. The SRP request and response packets for the new device will bypass DAI.
- D. The DHCP server assign the IP addressing information to the new device.
Answer: B,D
Explanation:
Explanation
https://www.juniper.net/documentation/en_US/junos/topics/concept/port-security-dhcp-snooping-els.html
NEW QUESTION 56
Click the Exhibit button.
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 57
You have configured the route with an IS-IS metric of 2048. However, the IS-IS interface metric of 63 is being applied for the interface of this router.
What must you do to enable larger metric value?
- A. Enable level 1 IS-IS routing.
- B. Disable narrow metrics.
- C. Enable wide metrics.
- D. Restart the IS-IS protocol.
Answer: D
NEW QUESTION 58
......
Juniper JN0-348 Exam Topics:
| Section | Objectives |
|---|---|
| Spanning Tree | Describe the concepts, benefits, operation, or functionality of the Spanning Tree Protocol
Demonstrate knowledge how to configure, monitor, or troubleshoot STP and RSTP
|
| IS-IS | Describe the concepts, operation or functionality of IS-IS
Demonstrate knowledge of how to configure, monitor or troubleshoot IS-IS
|
| Layer 2 Switching or VLANs | Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS
Describe the concepts, benefits, or functionality of VLANs
Demonstrate knowledge how to configure, monitor or troubleshoot Layer 2 switching or VLANs
|
| Protocol Independent Routing | Identify the concepts, operation or functionality of various protocol-independent routing components
Demonstrate knowledge how to configure, monitor, or troubleshoot various protocol-independent routing components
|
| Tunnels | Identify the concepts, requirements or functionality of IP tunneling
Demonstrate knowledge of how to configure, monitor or troubleshoot IP tunnels
|
| Layer 2 Security | Identify the concepts, benefits or operation of various Layer 2 protection or security features
Identify the concepts, benefits or operation of Layer 2 firewall filters
Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security
|
| OSPF | Describe the concepts, operation or functionality of OSPF
Demonstrate knowledge how to configure, monitor or troubleshoot OSPF
|
| BGP | Describe the concepts, operation or functionality of BGP
Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP
|
| High Availability | Identify the concepts, benefits, applications or requirements for high availability in a Junos OS environment
Demonstrate knowledge of how to configure, monitor, or troubleshoot high availability components
|
The Juniper JN0-348 is the qualifying exam for the Juniper Networks Certified Internet Specialist - Enterprise Routing and Switching (JNCIS-ENT) certification. It validates IT specialists with intermediate-level knowledge required to implement routing and switching concepts in the Juniper Junos.
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