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2017 July Juniper Official New Released JN0-102 Q&As
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Junos, Associate (JNCIA-Junos)

QUESTION 1

Which two statements are true about optical networks? (Choose two.)

 

A.

SONET and SDH both use time-division multiplexing.

B.

An optical transport network system uses time-division multiplexing.

C.

SONET and SDH both use wavelength-division multiplexing.

D.

An optical transport network system uses wavelength-division multiplexing.

 

Correct Answer: AD

 

 

QUESTION 2

Why is IPv6 packet processing more effective than IPv4 packet processing?

 

A.

fixed header size

B.

smaller header size

C.

fewer header fields

D.

variable header size

 

Correct Answer: A

 

 

QUESTION 3

What is the central processing component of the forwarding plane?

 

A.

PFE

B.

RE

C.

Junos OS

D.

forwarding table

 

Correct Answer: A

 

 

QUESTION 4

You are asked to change the cable on interface ge-0/2/1. Which statement is correct?

 

A.

The cable is found on slot 2, port 0, and FPC 1.

B.

The cable is found on FPC 0, slot 1, and port 2.

C.

The cable is found on port 1, slot 0, and FPC 2.

D.

The cable is found on slot 2, port 1, and FPC 0.

 

Correct Answer: D

 

 

QUESTION 5

What are two functions of the RE? (Choose two).

 

A.

to maintain routing table
s

B.

to forward traffic toward its destination

C.

to manage the PFE

D.

to implement various services such as policing, stateless firewall filtering, and class of service

 

Correct Answer: AC

QUESTION 6

— Exhibit —

 

[edit]

 

user@router# show | compare

 

[edit protocols ospf area 0.0.0.0]

  interface ge-0/0/0.0 {

  disable;

  }

 

[edit protocols ospf]

 

area 0.0.0.0 { … }

 

+ area 0.0.0.1 {

 

+ interface ge-0/0/0.0;

 

+ }

 

— Exhibit —

 

Referring to the exhibit, what are two differences between the active and candidate configurations? (Choose two.)

 

A.

The ge-0/0/0 interface was added to the candidate configuration.

B.

Area 0 was added to the active configuration.

C.

Area 1 was added to the candidate configuration.

D.

The ge-0/0/0 interface was added to the active configuration.

 

Correct Answer: AC

 

 

QUESTION 7

Which statement is correct regarding IPv6 addresses?

 

A.

An IPv6 address consists of 128 bits separated into eight 16-bit hexadecimal sections.

B.

An IPv6 address consists of 64 bits separated into four 16-bit hexadecimal sections.

C.

An IPv6 address consists of 128 bits separated into sixteen 8-bit hexadecimal sections.

D.

An IPv6 address consists of 64 bits separated into eight 8-bit hexadecimal sections.

 

Correct Answer: A

 

 

QUESTION 8

What are three characteristics of UDP? (Choose three.)

 

A.

UDP is faster than TCP.

B.

UDP operates at the Transport Layer.

C.

UDP is connection-oriented.

D.

UDP data is sent best-effort.

E.

UDP is more reliable than TCP.

Correct Answer: ABD

 

 

QUESTION 9

— Exhibit —

 

[edit system syslog]

 

user@router# show

 

host 152.170.10.10 {

 

any warning;

 

}

 

file changes {

 

change-log info;

 

}

 

— Exhibit —

 

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

 

A.

Any warning message will be sent to the 152.170.10.10 host.

B.

A warning message will be logged when the 152.170.10.10 host logs in.

C.

Changes to the device’s internal temperatures will be logged.

D.

Changes to the configuration will be logged.

 

Correct Answer: AD

 

 

QUESTION 10

At which layer of the OSI model does error checking occur with IPv6?

 

A.

Layer 2

B.

Layer 3

C.

Layer 4

D.

Layer 7

 

Correct Answer: C

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