Juniper JN0-363 JNCIS-SP Exam Practice Test Instant Access

Question 1

Which two interface types are used as tunnel endpoints? (Choose two.)

Aae

Bip

Cge

Dgr

Answer : B, D

tunnel-end-point name {

ipv4 {

source-address 10.255.1.1;

destination-address 10.255.2.0/25;

}

gre {

key 9;

}

https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/ref/statement/tunnel-end-point-edit-firewall.html

The ip and gr interface types are used as endpoints for various tunneling protocols. ip is a generic term that can refer to any IP-based tunnel, while gr specifically refers to Generic Routing Encapsulation (GRE) tunnel interfaces in Junos.

Juniper Networks documentation on Interface Types: Interface Types and Their Default Properties

Question 2

Which new field is added to an IPv6 header as compared lo IPv4?

Aversion

Bchecksum

Cfragment offset

Dflow label

Answer : D

The IPv6 header includes a new field that is not found in the IPv4 header, called the flow label. The flow label in IPv6 is used to identify packets that require special handling by routers for quality of service (QoS) or other reasons, allowing these packets to be handled efficiently as they move through the network.

Juniper Networks Technical Documentation on IPv6

IPv6 Header Fields - Juniper Networks

Question 3

You are adding an IPv6 configuration to an Interface on a Junos device.

In this scenario, which statement is correct?

AThe link local address must be manually configured within the fdO0::/8 prefix range.

BThe link local address must be manually configured within the fe80::/10 prefix range.

CThe link local address is automatically created using the MAC address within the fe80::'l0 prefix range.

DThe link local address is automatically created using the MAC address within the fd00::/8 prefix range.

Answer : C

IPv6 link-local addresses are automatically generated for each interface and have a prefix of fe80::/10. The interface's MAC address is typically used as part of the process to create the Interface Identifier (IID) in the link-local address, following the EUI-64 format.

Juniper Networks Technical Documentation on IPv6

IPv6 Interface Addresses - Juniper Networks

Question 4

Which new field is added to an IPv6 header as compared to IPv4?

Aflow label

Bchecksum

Cfragment offset

Dversion

Answer : A

https://www.omnisecu.com/tcpip/ipv6/comparison-between-ipv4-header-and-ipv6-header.php#:~:text=IPv6%20header%20is%20much%20simpler%20than%20IPv4%20header.&text=The%20size%20of%20IPv6%20header,are%20128%20bit%20binary%20numbers.&text=In%20IPv4%20header%2C%20the%20source,are%2032%20bit%20binary%20numbers.

The flow label is a new field added to IPv6 headers that was not present in IPv4 headers. It is used to identify packets that require special handling by routers, particularly for quality-of-service (QoS) purposes. Reference::

IPv6 Header Format, Juniper Networks Documentation

IPv6 Overview, Juniper Networks Documentation

Question 5

What Is a key differentiator of generate routes from aggregate routes?

AGenerate routes use a forwarding next hop.

BGenerate routes have a default next-hop value of reject.

CGenerate routes have a default preference value of 210.

DGenerate routes cannot be used as a gateway of last resort.

Answer : A

https://www.networkfuntimes.com/junos-aggregate-routes-vs-generate-routes-how-to-summarise-on-juniper-routers/

Generated routes are a type of route that can be created to summarize and generate more specific routes within the routing table. Unlike aggregate routes, which summarize existing routes and inherit a next-hop, generated routes do not necessarily have to match an existing route and will have a next-hop of reject by default unless specified otherwise.

Juniper Networks Technical Documentation on Routing Policies and Route Generation

Question 6

Exhibit

Referring to the exhibit, how do you verify the status of the tunnel from R1?

AIssue the ping 172.20.111.10 source 172.20.110.1 command.

BIssue the ping 172.20.111.10 source 198.51.100.1 command.

CIssue the ping 172.20.iii.io source 203.0.113.2 command.

DIssue the ping 172.20. Ill. 10 command.

Answer : B

To verify the status of the tunnel from R1, you would issue a ping from the source address that is assigned to R1's end of the tunnel. In the exhibit, we can see that the tunnel interface (gre-0/0/0.0) has the IP address 198.51.100.1 on R1. Therefore, to test the tunnel's status, you should ping the IP address at the other end of the tunnel (which is likely the address on User B's interface or another interface on R2) from R1's tunnel source address.

Juniper Networks documentation on GRE: GRE Interface Configuration

Question 7

Which LSA type does an OSPF ABR use to advertise external routes generated by an NSSAASBR into the backbone?

AType 5

BType 7

CType 3

DType 1

Answer : B

In OSPF, an Area Border Router (ABR) that connects to a Not-So-Stubby Area (NSSA) will convert the Type 7 LSAs generated by an NSSA Autonomous System Boundary Router (ASBR) into Type 5 LSAs to advertise them into the OSPF backbone area (Area 0). Type 7 LSAs are specific to NSSAs and are used to advertise external routes within the NSSA.

Juniper Networks documentation on OSPF: OSPF Areas and LSA Types Explained

Juniper Service Provider Routing and Switching, Specialist JN0-363 JNCIS-SP Exam Practice Test