Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) (JN0-643) Free Practice Test
Question 1
You just configured an interface as an access port and it is up and passing traffic.
However, you notice that all traffic transiting this interface is being classified as best effort.
Which default BA classifier is causing this behavior?
However, you notice that all traffic transiting this interface is being classified as best effort.
Which default BA classifier is causing this behavior?
Correct Answer: D
Question 2
Which three statements are correct about source specific multicast (SSM) on the junos
OS? (Choose three)
OS? (Choose three)
Correct Answer: B,C,D
Question 3
Which version of BGP would an enterprise use to peer with an ISP?
Correct Answer: C
Question 4
-- Exhibit -

-- Exhibit --
Click the Exhibit button.
In the exhibit, customers connected to Area 3 must have access to external prefixes received from the data center connected to the router in Area 1. These configurations are currently applied to the routers in Area 1:
{master:0}[edit]
user@Area-1-ABR# show protocols ospf
no-nssa-abr;
area 0.0.0.1 {
nssa;
interface ge-1/1/1.100;
}
{master:0}[edit]
user@Area-1-External# show protocols ospf
area 0.0.0.1 {
stub no-summaries;
interface ge-1/1/1.100;
}
What must you change for these configurations to work?

-- Exhibit --
Click the Exhibit button.
In the exhibit, customers connected to Area 3 must have access to external prefixes received from the data center connected to the router in Area 1. These configurations are currently applied to the routers in Area 1:
{master:0}[edit]
user@Area-1-ABR# show protocols ospf
no-nssa-abr;
area 0.0.0.1 {
nssa;
interface ge-1/1/1.100;
}
{master:0}[edit]
user@Area-1-External# show protocols ospf
area 0.0.0.1 {
stub no-summaries;
interface ge-1/1/1.100;
}
What must you change for these configurations to work?
Correct Answer: A
Question 5
-- Exhibit --
[edit protocols ospf]
user@R2# show
area 0.0.0.3 {
stub default-metric 10 no-summaries;
interface ge-0/1/1.0;
}
-- Exhibit --
Click the Exhibit button.
Referring to the output in the exhibit, which statement is true?
[edit protocols ospf]
user@R2# show
area 0.0.0.3 {
stub default-metric 10 no-summaries;
interface ge-0/1/1.0;
}
-- Exhibit --
Click the Exhibit button.
Referring to the output in the exhibit, which statement is true?
Correct Answer: B
Question 6
Voice traffic is coming in on UDP port 17689. This traffic must be classified into the expedited-forwarding forwarding class.
Which type of classifier is needed?
Which type of classifier is needed?
Correct Answer: A
Question 7
-- Exhibit --
user@router> show ospf database network extensive
OSPF link state database, area 0.0.0.1
Type ID Adv Rtr Seq Age Opt Cksum Len
Network 10.222.1.1 192.168.20.1 0x80000002 813 0x2 0x 32
mask 255.255.255.0
attached router 192.168.20.1
attached router 192.168.40.1
Aging timer 00:46:27
Installed 00:13:32 ago, expires in 00:46:27, sent 1w5d 01:07:09 ago
-- Exhibit --
Click the Exhibit button.
Referring to the exhibit, which statement is true regarding the OSPF network LSA?
user@router> show ospf database network extensive
OSPF link state database, area 0.0.0.1
Type ID Adv Rtr Seq Age Opt Cksum Len
Network 10.222.1.1 192.168.20.1 0x80000002 813 0x2 0x 32
mask 255.255.255.0
attached router 192.168.20.1
attached router 192.168.40.1
Aging timer 00:46:27
Installed 00:13:32 ago, expires in 00:46:27, sent 1w5d 01:07:09 ago
-- Exhibit --
Click the Exhibit button.
Referring to the exhibit, which statement is true regarding the OSPF network LSA?
Correct Answer: D
Question 8
What are two benefits of configuring OSPF database protection? (Choose two.)
Correct Answer: B,D