Juniper JN0-102 Exam Success: Mock Tests & Study Resources, Juniper JNCIA-Junos Certification | SPOTO

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Question #1

Which statement is true about the routing table?

A. The routing table exists in the control plane only

B. The routing table exists in the control plane and in the forwarding plane

C. The routing table contains both active and inactive routes

D. The routing table is stored on compact flash

View answer

Correct Answer: D

Question #2

Which two prefixes would summarize the networks shown below? (Choose two.) 192.168.1.0/24 192.168.2.0/24 192.168.3.0/24

A. 192

B. 192

C. 192

D. 192

View answer

Correct Answer: BD

Question #3

Which statement describes exception traffic?

A. Exception traffic must be sent to the PFE for processing

B. Exception traffic enters one ingress port and is sent out multiple egress ports

C. Exception traffic is rate-limited on the internal link to prevent DoS attacks

D. Exception traffic is processed after forwarding traffic when congestion exists

View answer

Correct Answer: C

Question #4

After factory-defaults have been loaded, which two syslog files will be present in the configuration?

A. system and chassis

B. syslog-messages and NVRAM

C. messages and interactive-commands

D. authorization and events

View answer

Correct Answer: A

Question #5

-- Exhibit -- [edit class-of-service] user@router# show interfaces { ge-0/0/2 { unit 0 { classifiers { inet- precedence default; } } } } -- Exhibit -- Referring to the exhibit, which type of classifier is being used in this CoS configuration?

A. behavior aggregate

B. policer

C. multifield

D. forwarding policy

View answer

Correct Answer: AD

Question #6

Which statement is true about routing tables on a Junos device?

A. They purge any routes not selected as active routes

B. They exist in two places: the Routing Engine and the Packet Forwarding Engine

C. They are exclusively designed to handle dynamic routing protocols

D. They populate the forwarding table

View answer

Correct Answer: C

Question #7

What represents the binary equivalence of 207?

A. 11001111

B. 11101011

C. 11010111

D. 11010101

View answer

Correct Answer: C

Question #8

Which statement is correct about the forwarding table?

A. The forwarding table is stored only on the PFE

B. The forwarding table contains all known routes

C. The forwarding table is stored on both the RE and PFE

D. The forwarding table is stored only on the RE

View answer

Correct Answer: ABC

Question #9

Click the Exhibit. Referring to the exhibit, which action would synchronize a new router’s clock with the NTP server?

A. Reboot the router

B. Configure the correct NTP trusted key using the set trusted-key configuration command under the [edit system ntp] hierarchy

C. Issue the set date ntp operational command

D. Configure the NTP server using the set server 172

View answer

Correct Answer: B

Question #10

-- Exhibit -- user@router> show route protocol static inet.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 192.168.1.0/24 *[Static/5] 00:03:13 >to 10.20.106.10 via fe-0/0/5.1 192.168.1.192/26 *[Static/5] 00:03:13 >to 10.20.14.131 via ge-0/0/0.0 192.168.1.192/27 *[Static/5] 00:03:13 >to 10.18.1.1 via ge-0/0/1.0 192.168.1.4/30 *[Static/5] 00:01:06 >to 10.20.14.130 via ge-0/0/0.0 -- Exhibit -- Using the routing table shown in the exhibit, what will be

A. 10

B. 10

C. 10

D. 10

View answer

Correct Answer: B

Question #11

Which statement is true about default route preferences?

A. OSPF AS external is lower than OSPF internal

B. IBGP is lower than EBGP

C. RIP is lower than RIPng

D. Direct is lower than static

View answer

Correct Answer: B

Question #12

Which command allows you to view the raw packet data of interface ge-1/0/5?

A. Show interface ge-1/0/5 media

B. Monitor interface traffic ge-1/0/5

C. Show interface ge-/1/0/5 extensive

D. Monitor traffic interface ge-1/0/5

View answer

Correct Answer: B

Question #13

You have configured logging to the console port but are uncertain of the impact to the device with troubleshooting. In this scenario, which command would allow you to minimize the impact?

A. set system syslog console any none

B. set system syslog log-rotate-frequency 15

C. commit confirmed 1 comment troubleshootD

View answer

Correct Answer: B

Question #14

What are three interface prefixes for a 40-gigabit interface? (Choose three.)

A. xe

B. es

C. et

D. fte

E. xle

View answer

Correct Answer: A

Question #15

Which keystroke combination allows users to move the cursor to the beginning of the command line without deleting text?

A. Ctrl + w

B. Ctrl + aC

D. Ctrl + u

View answer

Correct Answer: C

Question #16

At which command prompt would you issue the set date command?

A. [edit chassis]user@rou ter#

B. [edit]user@router #

C. [edit system]user@rout er#

D. user@router>

View answer

Correct Answer: C

Question #17

-- Exhibit – -- Exhibit -- Referring to the exhibit, you are asked to rate-limit traffic from Web-Server to the subnet where Mal-User is located. All other traffic should be permitted. Which firewall filter configuration do you use?

A. [edit firewall]user@router# show policer LIMIT-MAL- USER { if-exceeding { bandwidth-limit 400k; burst-size-limit 100k; } then discard; } familyinet { filter STOP- MAL-USER { term one { from { source-address { 100

B. [edit firewall]user@router# show policer LIMIT-BAD- USER { if-exceeding { bandwidth-limit 400k; burst-size-limit 100k; } then discard; } familyinet { filter STOP- MAL-USER { term one { from { source-address { 100

C. [edit firewall] user@router# show policer LIMIT-MAL- USER { if-exceeding { bandwidth-limit 400k; burst-size-limit 100k; } then discard; } familyinet { filter STOP- MAL-USER { term one { from { source-address { 100

D. [edit firewall] user@router# show policer LIMIT-MAL- USER { if-exceeding { bandwidth-limit 400k; burst-size-limit 100k; } then discard; } familyinet { filter STOP- MAL-USER { term one { from { source-address { 200

View answer

Correct Answer: D

Question #18

Which command returns a list of commands in which a given keyword is used throughout the Junos hierarchies?

A. help topic

B. help reference

C. help apropos

D. help tip

View answer

Correct Answer: BCE

Question #19

Which two are correct when configuring an IP address for a Fast Ethernet interface? (Choose two.)

A. set interfaces fe-0/0/0 address 10

B. set interfaces fe-0/0/0

C. set interfaces fe-0/0/0

D. set interfaces fe-0/0/0 unit 0 family inet address 10

View answer

Correct Answer: AC

Question #20

Which process is responsible for controlling all interfaces on a Junos device?

A. rpd

B. chassisd

C. mgd

D. dcd

View answer

Correct Answer: D

Question #21

Which two design goals describe the Junos OS design? (Choose two.)

A. clean separation of security and routing policies

B. clean separation of control and forwarding planes

C. modularization of multiple software processes

D. a single hardware platform for all software applications

View answer

Correct Answer: A

Question #22

You are asked to change the cable on interface ge-2/1/3. Which statement is correct?

A. The cable is found on FPC 1, slot 3, and port 2

B. The cable is found on slot 1, port 2, and FPC 3

C. The cable is found on port 3, FPC 2, and slot 1

D. The cable is found on FPC 1, slot 2, and port 3

View answer

Correct Answer: AC

Question #23

You have enabled trace options to log error messages. You want to have the messages displayed to your terminal session automatically as they occur. Which command should you use in this scenario?

A. file list

B. request message terminal

C. file show

D. monitor start

View answer

Correct Answer: AC

Question #24

-- Exhibit -- user@router> show route protocol static inet.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 192.168.1.128/27 *[Static/5] 00:03:13 >to 10.20.106.10 via fe-0/0/5.1 192.168.1.144/29 *[Static/5] 00:03:13 >to 10.20.14.131 via ge-0/0/0.0 192.168.1.192/27 *[Static/5] 00:03:13 >to 10.18.1.1 via ge-0/0/1.0 192.168.1.128/28 *[Static/5] 00:01:06 >to 10.20.14.130 via ge-0/0/0.0 -- Exhibit -- Given the routing entries shown in the exhibit, which

A. 10

B. 10

C. 10

D. 10

View answer

Correct Answer: C

Question #25

What are three benefits of using a dynamic routing protocol? (Choose three.)

A. Increased network security

B. Decreased network latency

C. Increased network availability

D. Lower administrative overhead

E. Greater network scalability

View answer

Correct Answer: AC

Question #26

What is the name of the volume containing the software and files used for the day-to-day operation of a device using Junos with upgraded FreeBSD?

A. /oam

B. /active

C. /var

D. /junos

View answer

Correct Answer: B

Question #27

-- Exhibit – -- Exhibit -- Referring to the exhibit, you want to block HTTP access to Web-Server from the subnet where Mal-User is located. All other traffic should be permitted. Which firewall filter configuration do you use?

A. [edit firewall family inet filter STOP-MAL-USER] user@router# show term one { from { source-address { 200

B. [edit firewall family inet filter STOP-MAL-USER] user@router# show term one { from { source-address { 100

C. [edit firewall family inet filter STOP-MAL-USER] user@router# show term one { from { source- address { 100

D. [edit firewall family inet filter STOP-MAL-USER] user@router# show term one { from { source-address { 200

View answer

Correct Answer: CD

Question #28

You must apply the family inet configuration parameter only to Gigabit Ethernet interfaces that are in FPC 2. Which output applies to this configuration?

A. [edit groups]user@router# show ge-int { interfaces { { unit 0 { familyinet; } } } }

B. [edit groups]user@router# show ge-int { interfaces { <*> { unit 0 { familyinet; } } } }

C. [edit groups]user@router# show ge-int { interfaces { <*-2/*/*> { unit 0 { familyinet; } } } }

D. [edit groups]user@router# show ge-int { interfaces { { unit 0 { familyinet; } } } }

View answer

Correct Answer: D

Question #29

What is the network ID address of the IPv4 subnet that includes the IP address 114.180.192.120/28?

A. 114

B. 114

C. 114

D. 114

View answer

Correct Answer: D

Question #30

Which application would be suited for UDP traffic?

A. Web browsing

B. downloading a program

C. streaming television shows

D. on-line shopping

View answer

Correct Answer: D

Question #31

Which three protocols are connectionless? (Choose three.)

A. DNS

B. TFTP

C. ICMP

D. SSH

E. Telnet

View answer

Correct Answer: C

Question #32

What are three Application Layer protocols? (Choose three.)

A. FTP

B. HTTP

C. TCP

D. ATME

View answer

Correct Answer: D

Question #33

What are two examples of exception traffic? (Choose two.)

A. SFTP traffic that enters one interface and is destined for a local physical interface

B. SFTP traffic that enters and exits the same interface on the local router

C. SCP traffic that enters one interface and exits another interface on the local router

D. SCP traffic that is destined for the router’s loopback interface

View answer

Correct Answer: ABD

Question #34

You have been asked to configure your MX240 with a default route toward your upstream ISP at IP address 192.168.100.1. Which command successfully completes this task?

A. user@router# set routing-options static route 0

B. user@router# set routing-options default route 0

C. user@router# set forwarding-options static route 0

D. user@router# set protocols default route 0

View answer

Correct Answer: CD

Question #35

What represents the decimal equivalence of 11100101?

A. 5

B. 93

C. 177

D. 229

View answer

Correct Answer: C

Question #36

You are asked to configure the configuration archival feature on your Junos devices. Which two transfer methods are available? (Choose two.)

A. TFTP

B. FTP

C. SCP

D. SFTP

View answer

Correct Answer: A

Question #37

What are three characteristics of Layer 2 switches? (Choose three.)

A. Layer 2 switches forward broadcast traffic

B. Layer 2 switches forward traffic addresses to hosts that reside on the same collision domain

C. Layer 2 switches separate multicast domains

D. Layer 2 switches separate collision domains

E. Layer 2 switches forward traffic addressed to hosts that reside on a different collision domain

View answer

Correct Answer: ABC

Question #38

What is the subnet mask for the 172.45.32.6/19 address?

A. 255

B. 255

C. 255

D. 255

View answer

Correct Answer: AD

Question #39

Which three statements are true about IPv6 link local addresses? (Choose three.)

A. They begin with the prefix fe80::/64

B. They are optional addresses

C. They provide reachability to the Internet

D. They are not guaranteed to the unique outside of the network segment

E. They can be assigned manually or dynamically

View answer

Correct Answer: C

Question #40

Which two statements describe the default behavior for OSPF? (Choose two.)

A. OSPF imports all routes into the inet

B. OSPF exports all static routes into the OSPF database

C. OSPF does not export static routes into the OSPF database

D. OSPF imports all routes into the inet4

View answer

Correct Answer: ABC

Question #41

You have been asked to create a static route with a next hop that is not directly connected to the router. Which configuration parameter enables the static route to accomplish this scenario?

A. resolve

B. indirect

C. next-hop

D. recursive

View answer

Correct Answer: D

Question #42

Click the Exhibit. Your Junos device is using the configuration shown in the exhibit. You notice that the 172.17.23.10/30 address is incorrect and should be 172.17.23.9/30. What are two commands that would solve this problem? (Choose two.)

A. [edit interfaces] user@router# set ge-0/0/2

B. [edit interfaces] user@router# replace pattern 172

C. [edit interfaces] user@router# rename ge-0/0/2

D. [edit interfaces] user@router# delete ge-0/0/2

View answer

Correct Answer: ADE

Question #43

Which command displays the current temperature of a Junos device's components?

A. show chassis temperature-thresholds

B. show chassis environment

C. show chassis hardware

D. show chassis alarms

View answer

Correct Answer: B

Question #44

You must archive log messages for an extended period of time for audit and troubleshooting purposes. Which syslog setting should you configure on the Junos device in this scenario?

A. severity

B. facility

C. host

D. console

View answer

Correct Answer: A

Question #45

By default, what are three valid routing tables? (Choose three.)

A. inet

B. inet4

D. inet6

E. inet

View answer

Correct Answer: BC

Question #46

When using keyboard shortcuts, which single keystroke combination allows users to erase the entire current command?

A. Ctrl + a

B. Ctrl + e

C. Ctrl + u

D. Ctrl + w

View answer

Correct Answer: B

Question #47

Which command is used to restore a Junos device to its default state?

A. load factory-default

B. load override factory-default

C. load replace default

D. load set default

View answer

Correct Answer: A

Question #48

Which three statements are true regarding the candidate configuration? (Choose three.)

A. The candidate configuration is a temporary configuration that might become the active configuration

B. A candidate configuration is initially populated with the configuration currently active on the system

C. Changes to the candidate configuration take effect immediately

D. The candidate configuration becomes the active configuration after a system reboot

E. The configure private command allows concurrent editing of a candidate configuration by multiple users

View answer

Correct Answer: C

Question #49

Which class-of-service component allows you to define the bandwidth allocated to different traffic types?

A. classification

B. rewrite marking

C. scheduling

D. queuing

View answer

Correct Answer: A

Question #50

Which statement describes transit traffic?

A. Traffic addressed to the chassis that requires some form of special handling by the RE before it can be forwarded out an egress port

B. Traffic that enters an ingress port, is compared against the forwarding table, and is forwarded out an egress port

C. Any traffic that requires the generation of an ICMP message

D. Traffic that requires some form of special attention and does not pass through the device

View answer

Correct Answer: B

Question #51

What is the binary equivalent of 242.168.94.124?

A. 11110011 10101000 01011110 01111100

B. 11110010 10101010 01011110 01111100

C. 11110010 10101000 01011110 01111100

D. 11110010 10101000 01010110 01111100

View answer

Correct Answer: C

Question #52

Which command configures an address of 192.168.1.1 with a mask of 255.255.255.0 on interface ge-0/0/0?

A. set ip interface ge-0/0/0 address 192

B. set ip interface ge-0/0/0 address 192

C. set interface ge-0/0/0 ip4 address 192

D. set interfaces ge-0/0/0 unit 0 family inet address 192

View answer

Correct Answer: BD

Question #53

Which two statements are correct about the request system zeroize local command? (Choose two.)

A. The command removes all data files

B. The command preserves the management interface addresses

C. The command resets all key values

D. The command removes all user-created files from the system

View answer

Correct Answer: D

Question #54

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

A. to maintain routing tables

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

View answer

Correct Answer: B

Question #55

Which statement is true when using the allow command and deny command attributes when creating user permissions?

A. If you allow and deny the same commands, the Junos OS will fail the commit check

B. If you allow and deny the same commands, the allow command permissions take precedence over the deny command permissions

C. If you specify a regular expression for allow and deny with two variants of a command, both will be ignored

D. The all login class permission bits take precedence over allow and deny when a user issues the rollback command

View answer

Correct Answer: B

Question #56

Which two options are reasons for using traffic classification? (Choose two.)

A. to use the classification to route traffic

B. to use the classification to reorder packets from various sources

C. to use the classification to discard malformed packets

D. to use the classification to provide the configured service level

View answer

Correct Answer: C

Question #57

Which two ping command parameters would be used to troubleshoot MTU issues? (Choose two.)

A. ping size

B. ping rapid

C. ping verbose

D. ping do-not-fragment

View answer

Correct Answer: B

Question #58

Which two protocols are connection-oriented? (Choose two.)

A. Ethernet

B. PPP

C. TCP

D. UDP

View answer

Correct Answer: C

Question #59

Click the Exhibit button. Referring to the exhibit, which OSPF feature would connect Area 0 to Area 2?

A. Route summarization

B. Database synchronization

C. Equal-cost multipath

D. Virtual link

View answer

Correct Answer: CDE

Question #60

-- Exhibit -user@router> show configuration groups { ge-int { interfaces { { unit 0 { familyinet { address 10.10.12.1/24; } } } } } } ... interfaces { ge-0/0/1 { unit 0; } -- Exhibit -- Referring to the exhibit, which two actions would you take to only apply the 10.10.12.1/24 address to the ge-0/0/1.0 interface?

A. Apply the ge-int group to the configuration at the [edit] hierarchy

B. Apply the ge-int group to the configuration at the [edit interfaces ge-0/0/1] hierarchy

C. Apply the ge-int group to the configuration at the [edit interfaces ge-0/0/1 unit 0] hierarchy

D. Apply the ge-int group to the configuration at the [edit interfaces] hierarchy

View answer

Correct Answer: D

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