Juniper JN0-105 Exam Practice Test Instant Access

Question 1

What is a benefit of using J-Web?

AIt simultaneously manages multiple devices.

BIt provides a customizable dashboard.

CIt provides more advanced features than the CLI.

DIt provides console-based management.

Answer : B

If you've committed a configuration and then need to revert to the previous configuration, the rollback command is used. Since the incorrect IP address has not been committed, as indicated by the commit check command being successful, issuing rollback 1 will undo the changes made in the current session, which includes the accidental entry of the IP address.

Question 2

What are two link-state routing protocols? (Choose two.)

ARIP

BBGP

COSPF

DIS-IS

Answer : C, D

Link-state routing protocols are a type of routing protocol used in packet-switching networks for finding the best path between source and destination. OSPF (Open Shortest Path First) and IS-IS (Intermediate System to Intermediate System) are both examples of link-state routing protocols. They work by maintaining a complete map or topology of the network, allowing routers to independently calculate the best path to each destination. Unlike distance-vector protocols like RIP, link-state protocols are more efficient and scalable, making them suitable for larger networks.

Question 3

What is the maximum number of rollback configuration files that the Junos OS will store?

A65

B50

C25

D19

Answer : B

Junos OS can store up to 50 rollback configuration files, making B the correct answer. These rollback files allow administrators to revert to previous configurations, providing a safety net that facilitates recovery from configuration errors or undesired changes

Question 4

You are asked to convert the number 7 from decimal to binary.

Which number is correct in this scenario?

A00001000

B00010000

C00000111

D11100000

Answer : C

To convert the decimal number 7 to binary, the correct representation is 00000111 (C). In binary, 7 is represented as 1+2+4 (2^0 + 2^1 + 2^2), which corresponds to the last three digits being 1 in the binary format, with leading zeros added for clarity.

Question 5

When considering routing policies, which two statements are correct? (Choose two.)

ARouting policies are applied to interfaces as input or export filters.

BAn import routing policy for BGP determines which received prefix advertisements are placed in the routing information base.

CPolicy terms are evaluated from top to bottom with action taken on the first match found.

DPolicy terms are evaluated from top to bottom with the most restrictive action taken of all the matching terms.

Answer : B, C

Routing policies in Junos OS are crucial for controlling route advertisements and path selection. The correct answers are B and C. An import routing policy for BGP determines which received prefix advertisements are placed in the routing information base (RIB), and policy terms are evaluated from top to bottom, with action taken on the first match found. This sequential evaluation allows for precise control over routing decisions.

Question 6

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?

AThe command only works for interface configuration differences.

BThere are no changes to the candidate configuration.

CSomeone accidentally deleted the active configuration.

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

Answer : B

The show | compare command in Junos OS is used to display the differences between the candidate configuration and the active configuration. If no output is shown when you issue this command, it means that there are no changes between the candidate configuration and the active configuration. This indicates that the candidate configuration is identical to the active configuration, and thus no differences are displayed.

'The show | compare command displays the differences between the candidate configuration and the active configuration. If there are no changes, no output is displayed.'

Question 7

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

Adestination port number

Bsource MAC address

Csource port number

Ddestination MAC address

Answer : A, C

The transport layer in the OSI model is responsible for end-to-end communication and error recovery. In a transport header, such as TCP or UDP, the key components include the source port number and the destination port number. These port numbers are used to identify sending and receiving applications. The source port number indicates the port of the sending application, and the destination port number refers to the port of the receiving application. MAC addresses, on the other hand, are part of the data link layer (Layer 2) and would be included in an Ethernet header, not a transport header.

Juniper Junos, Associate JN0-105 Exam Practice Test