Juniper JN0-649 JNCIP-ENT Exam Practice Test Instant Access

Question 1

A user is attempting to watch a high-definition video being streamed from the media server over the network. However, the user complains that the experienced video quality is poor. While logged on to router B, a Juniper Networks device, you notice that video packets are being dropped.

In this scenario, what would solve this problem?

AAdjust the scheduler for the expedited-forwarding forwarding class to support a higher transmit rate.

BAdjust the expedited-forwarding BA classifier to router B's ge-0/0/0 interface to support a higher transmit rate.

CAdjust the scheduler-map to support a higher transmit rate.

DAdjust the expedited-forwarding BA classifier on router B's ge-0/0/1 interface to support a higher transmit rate.

Answer : A

transmit rate is set on the scheduler, BA and classifier do not have transmit rate. scheduler-map=maps schedulers to fwd classes

Question 2

What are two similarities between OSPFv2 and OSPFv3? (Choose two.)

Avirtual links

Bsupport for multiple instances per link

C32-bit router ID

Dprotocol processing per link, not per subnet

Answer : A, C

Question 3

When using wide metrics, which two statements about route advertisement between IS-IS levels are correct? (Choose two.)

ALevel 1 and Level 2 routers do not advertise Level 2 routes into the Level 1 area by default.

BLevel 1 routes are advertised to Level 2 routers by default.

CIf wide-metrics-only is configured, Level 1 routes are not advertised to Level 2 routers by default.

DLevel 1 routes advertised as external routes into Level 1 are not advertised to any Level 2 routers by default.

Answer : A, C

Question 4

Referring to the exhibit, a PIM-SM network is set up to enable communication between multicast devices.

Which two statements are true? (Choose two.)

ABefore the formation of the rendezvous-point tree, a join message is sent from R1 to R3.

BBefore the formation of the rendezvous-point tree, an IGMP is sent from the Receiver to R1.

CBefore the formation of the rendezvous-point tree, an IGMP is sent from the Source to R5.

DBefore the formation of the rendezvous-point tree, a join message is sent from R1 to R5.

Answer : B, C

Question 5

Which three MSTP parameters must match on all switches in the same MST region? (Choose three.)

Aforwarding delay

Bbridge priority

Crevision number

DMSTI-to-VLAN mapping

Econfiguration name

Answer : C, D, E

https://www.juniper.net/documentation/us/en/software/junos/stp-l2/topics/topic-map/spanning-tree-configuring-mstp.html

Question 6

Referring to the exhibit, ServerA sends a single IP packet destined to 10.0.0.127.

Which two statements correctly describe the behavior of the resulting outbound VXLAN packets that contain the original packet destined to 10.0.0.127? (Choose two.)

ARouter E will replicate and send a copy of the received VXLAN packet to router D.

BRouter C will send a VXLAN packet destined only to router D and router E.

CRouter D will not replicate and send a copy of the received VXLAN packet to router E.

DRouter C will send a single VXLAN packet to one remote VTEP.

Answer : A, D

Question 7

You are asked to enforce user authentication using a captive portal before users access the corporate network.

Which statement is correct in this scenario?

AHTTPS is the default protocol for a captive portal.

BA captive portal can be bypassed using an allowlist command containing a device's IP address.

CWhen enabled, a captive portal must be applied to each individual interface.

DAll Web browser requests are redirected to the captive portal until authentication is successful.

Answer : D

You can set up captive portal authentication on your switch to redirect all Web browser requests to a login page that requires users to input a username and password before they are allowed access. Upon successful authentication, users are allowed access to the network and redirected to the original page requested. Junos OS provides a customizable template for the captive portal window that allows you to easily design and modify the look of the captive portal login page. You can modify the design elements of the template to change the look of your captive portal login page and to add instructions or information to the page. You can also modify any of the design elements of a captive portal login page. The first screen displayed before the captive login page requires the user to read the terms and conditions of use. By clicking the Agree button, the user can access the captive portal login page. https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/topic-map/user-authentication-captive-portal.html

Juniper JN0-649 Enterprise Routing and Switching, Professional JNCIP-ENT Exam Practice Test