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JN0-105 Junos - Associate (JNCIA-Junos) Questions and Answers

Questions 4

Your network infrastructure transports data, voice, and video traffic. Users are complaining that voice and video calls are not performing to their expectations.

In this scenario, which technology would you implement to improve voice and video performance on your network?

Options:

A.

NAT

B.

CoS

C.

STP

D.

IPv6

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Questions 5

Which two statements are correct about MAC addresses? (Choose two.)

Options:

A.

Switches use the Address Resolution Protocol table to assign MAC addresses to network interface cards in the forwarding frame.

B.

The source and destination MAC addresses always remains static to the final destination.

C.

The MAC address identifies the physical hardware.

D.

Switches use the destination MAC address to identify the next-hop destination and to change the destination MAC address in the frame.

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Questions 6

Which character is used to filter the command output in the Junos CLI?

Options:

A.

|

B.

>

C.

<

D.

?

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Questions 7

Which two statements are true about the PFE? (Choose two.)

Options:

A.

The PFE implements various services such as policing, stateless firewall filtering, and class of service.

B.

The PFE uses Layer 2 and Layer 3 forwarding tables to forward traffic toward its destination.

C.

The PFE handles all processes that control the chassis components.

D.

The PFE is responsible for performing protocol updates and system management.

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Questions 8

Exhibit

user@router> show route 192.168.36.1

inet.O: 5 destinations, 6 routes (5 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both

192.168.36.1/32 *[Static/5] 00:00:31

> to 10.1.1.2 via ge-0/0/10.0 [OSPF/IO] 00:02:21, metric 1 > to 10.1.1.2 via ge-0/0/10.0

Referring to the exhibit, which route(s) will be selected by Junos for packet forwarding?

Options:

A.

The OSPF route will be selected.

B.

The static route will be selected.

C.

The Junos OS randomly selects one route.

D.

The Junos OS selects both routes.

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Questions 9

When considering routing tables and forwarding tables, which two statements are correct? (Choose two.)

Options:

A.

The routing table is used by the RE to select the best route.

B.

The forwarding table stores all routes and prefixes from all protocols.

C.

The forwarding table is used by the RE to select the best route.

D.

The routing table stores all routes and prefixes from all protocols.

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Questions 10

Which two addresses are included in an Ethernet frame header? (Choose two.)

Options:

A.

source IP address

B.

source MAC address

C.

destination IP address

D.

destination MAC address

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Questions 11

Which two external authentication methods does Junos support for administrative access? (Choose two.)

Options:

A.

TACACS+

B.

NIS

C.

RADIUS

D.

ACE

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Questions 12

You configured your system authentication order using the set authentication-order tacplus radius password command.

Which statement is correct in this scenario?

Options:

A.

A rejection by TACACS+ will prevent a login and bypass the other two authentication methods.

B.

The password authentication will only be used if the TACACS+ and RADIUS servers fail to respond.

C.

All authentication methods are used with the most restrictive permission set used.

D.

The password authentication method is evaluated if the TACACS+ and RADIUS servers respond with a reject message.

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Questions 13

What are two physical interface properties? (Choose two.)

Options:

A.

MAC address

B.

IP address

C.

routing protocols

D.

MTU

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Questions 14

Exhibit

term limit-icmp { from {

source-address {

172.25.11.0/24;

}

protocol icmp;

}

then {

count count-icmp; discard;

}

}

Referring to the exhibit, which two actions will occur when a packet matches the firewall filter? (Choose two.)

Options:

A.

An ICMP destination unreachable message will be returned.

B.

The packet will be forwarded.

C.

The packet will be discarded.

D.

A counter will be incremented.

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Questions 15

Which two functions are performed by the PFE? (Choose two.)

Options:

A.

It implements firewall filters.

B.

It selects active routes.

C.

It forwards transit traffic.

D.

It maintains the routing table.

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Questions 16

Which statement is correct when multiple users are configuring a Junos device using the configure private command?

Options:

A.

A commit by any user will commit changes made by all active users.

B.

A commit will not succeed until there is only a single user in configuration mode.

C.

Each user gets their own candidate configuration.

D.

Each user shares the same candidate configuration.

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Questions 17

How many rescue configuration files are supported on a Junos device?

Options:

A.

50

B.

3

C.

1

D.

49

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Questions 18

Which component is considered part of the data plane?

Options:

A.

the Routing Engine

B.

the Packet Forwarding Engine

C.

the power supply

D.

the fan tray

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Questions 19

How many login classes are assignable to a user account?

Options:

A.

3

B.

2

C.

4

D.

1

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Questions 20

You are logged in to a Junos OS device with SSH and issued the show protocols | compare command in the configuration, but no output is shown.

Which statement is correct in this scenario?

Options:

A.

The command only works for interface configuration differences.

B.

There are no changes to the candidate configuration.

C.

Someone accidentally deleted the active configuration.

D.

You must commit the configuration before any output will be shown.

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Questions 21

You have configured some interfaces on a Junos device; however, you have not yet committed the configuration.

What happens if you issue the rollback 0 command in this scenario?

Options:

A.

The messages.log file is deleted.

B.

The factory default configuration is loaded.

C.

The Junos device is rebooted.

D.

The interface changes you made are discarded.

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Questions 22

Which two components are included in a transport header? (Choose two.)

Options:

A.

destination port number

B.

source MAC address

C.

source port number

D.

destination MAC address

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Questions 23

Click the Exhibit button.

Referring the exhibit, what does the highlighted number indicate?

Options:

A.

route preference is 5

B.

hop count is 5

C.

cost is 5

D.

metric is 5

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Questions 24

Click the Exhibit button.

How is traffic, sourced from 10.0.0.0/8, treated by the firewall filter shown in the exhibit?

Options:

A.

logged and discarded

B.

logged and rejected

C.

logged with no further action

D.

logged and accepted

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Questions 25

What does the user@router> clear log ospf-trace command accomplish?

Options:

A.

Logging data into ospf-trace is stopped.

B.

Trace parameters are removed from the OSPF protocol configuration.

C.

Data in the ospf-trace file is removed and logging continues.

D.

The ospf-trace file is deleted.

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Questions 26

Exhibit

policy-options { policy-statement Load-Balance-Policy { term Load-Balance { then { load-balance per-flow; accept;

}

}

}

}

routing-options {

router-id 192.168.100.11; autonomous-system 65201; forwarding-table {

export Load-Balance-Policy;

Referring to the exhibit, which two statements are correct? (Choose two.)

Options:

A.

The policy enables equal cost load balancing in the forwarding table.

B.

The policy must be applied under the protocols hierarchy.

C.

The policy enables per-packet load balancing.

D.

The policy enables flow-based load balancing.

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Questions 27

Which protocol is responsible for learning an IPv4 neighbor's MAC address?

Options:

A.

Address Resolution Protocol (ARP)

B.

Network Address Translation (NAT)

C.

Media Access Control Security (MACsec)

D.

Neighbor Discovery Protocol (NDP)

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Questions 28

What are two functions of the routing protocol daemon (rpd)? (Choose two.)

Options:

A.

It generates chassis alarms.

B.

It provides access to the CLI.

C.

It creates forwarding tables.

D.

It maintains routing tables.

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Questions 29

Which statement is correct concerning exception traffic processing?

Options:

A.

Exception traffic is always dropped during congestion.

B.

Exception traffic is rate-limited to protect the RE.

C.

Exception traffic is discarded by the PFE.

D.

Exception traffic is never forwarded.

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JNCIA |

Exam Code: JN0-105
Exam Name: Junos - Associate (JNCIA-Junos)
Last Update: Apr 21, 2024
Questions: 97
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