Up To The Immediate Present JN0-102 Ebook 2021

NEW QUESTION 1
On which operating system is the Junos OS based?

• A. ScreenOS
• B. Solaris
• C. FreeBSD
• D. HP-UX

Answer: C

NEW QUESTION 2
Which statement is correct regarding the Junos OS?

• A. The same Junos OS image is used on all Junos devices.
• B. The Junos OS provides separation between the control and forwarding planes.
• C. Each Junos OS image is based on model-specific source code.
• D. The Junos OS creates a secondary instance of the kernel to ensure redundancy.

Answer: B

NEW QUESTION 3
You have been asked to configure your router to send link-related SNMP trap notifications to the network management system (NMS) located at address 172.16.17.1.
Which two commands are required? (Choose two.)

• A. set snmp trap-group my-trap-group targets 172.16.17.1
• B. set snmp targets 172.16.17.1
• C. set snmp trap-group my-trap-group link-status
• D. set snmp trap-group my-trap-group categories link

Answer: AD

NEW QUESTION 4
Which command would correctly define a router's host-name?

• A. # set ip host-name <name>
• B. > set ip host-name <name>
• C. # set system host-name <name>
• D. > set system host-name <name>

Answer: C

Explanation:
Configure the hostname, using the set system host-name command. [edit]
user@host# set system host-name newton-re0
References: http://www.juniper.net/techpubs/en_US/junos15.1/topics/example/router-name-domain-name-ip-address-system-id-configuring.html

NEW QUESTION 5
What are two benefits of the modular design of the Junos OS? (Choose two.)

• A. Each module uses application-specific integrated circuits (ASICs).
• B. Each module runs in its own protected memory space.
• C. Each module can be individually restarted.
• D. Each module is supported across all Junos platforms.

Answer: BC

NEW QUESTION 6
What is the purpose of unicast reverse path forwarding?

• A. to validate packet receipt on interfaces where the traffic should be received
• B. to forward packets out the interfaces where the traffic should be received
• C. to forward packets out the interfaces where the traffic should be sent
• D. to validate packet receipt on interfaces where the traffic should be sent

Answer: A

NEW QUESTION 7
Which two protocols use UDP as a transport protocol by default? (Choose two.)

• A. Telnet
• B. ICMP
• C. DHCP
• D. RIP

Answer: CD

NEW QUESTION 8
Which statement is true regarding syslog on Junos devices?

• A. No logging is enabled by default.
• B. By default, the information is stored in a file named events.
• C. Only the message severity level must be configured.
• D. You can configure the router to send log messages to the console.

Answer: D

NEW QUESTION 9
-- Exhibit --
[edit routing-options] user@router# show static {
defaults { metric 10;
preference 10;
}
route 10.10.10.0/24 { next-hop 192.168.100.1;
qualified-next-hop 192.168.200.1;
preference 6;
}
metric 8;
}
}
-- Exhibit --
Given the configuration shown in the exhibit, which statement is correct about traffic matching the route 10.10.10.0/24?

• A. It will be forwarded to 192.168.100.1 using a metric of 10.
• B. It will be forwarded to 192.168.100.1 using a metric of 8.
• C. It will be forwarded to 192.168.200.1 using a metric of 8.
• D. It will be forwarded to 192.168.200.1 using a metric of 10.

Answer: C

NEW QUESTION 10
What are three valid software release designations for the Junos OS? (Choose three.)

• A. B
• B. T
• C. X
• D. R
• E. Z

Answer: ACD

NEW QUESTION 11
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# showge-int {interfaces {<ge-*> {unit 0 {family inet;}}}}
• B. [edit groups]user@router# showge-int {interfaces {<*> {unit 0 {family inet;}}}}
• C. [edit groups]user@router# showge-int {interfaces {<*-2/*/*> {unit 0 {family inet;}}}}
• D. [edit groups]user@router# showge-int {interfaces {<ge-2/*> {unit 0 {family inet;}}}}

Answer: D

NEW QUESTION 12
Which statement is correct about policies in the Junos OS?

• A. Export policies are used to filter routes from the RE forwarding table to the PFE forwarding table.
• B. Export policies are used to filter routes destined for the routing table.
• C. Export policies are used to filter routes being sent to neighboring devices.
• D. Export policies are used to filter traffic leaving the device.

Answer: C

NEW QUESTION 13
Click the exhibit button.

Which statement is correct regarding the configuration shown in the exhibit?

• A. When the ospf-trace file has created five files, it will stop logging additional information.
• B. When the ospf-trace file reaches the 64 KB file size, it is renamed and begins a new file.
• C. Timestamp information will not be included for each line of ospf-trace output.
• D. The ospf-trace file will automatically replace any existing trace file with the same name.

Answer: B

NEW QUESTION 14
Which three steps are part of the root password recovery process? (Choose three.)

• A. Reboot the device.
• B. Run the recovery script.
• C. Reset the root password.
• D. Reset the user passwords.
• E. Load factory-default configuration.

Answer: ABC

NEW QUESTION 15
In the Junos OS, what handles transit traffic?

• A. Transit traffic is handled by the RE only.
• B. Transit traffic is handled by the PFE only.
• C. Transit traffic is handled by both the RE and the PFE.
• D. Transit traffic is not handled by the RE or the PFE.

Answer: B

NEW QUESTION 16
Which two statements are true about the configure exclusive command? (Choose two.)

• A. It allows users to retain all uncommitted changes when exiting exclusive configuration mode.
• B. It allows multiple users to edit private copies of the configuration concurrently.
• C. It causes the loss of all uncommitted changes when exiting exclusive configuration mode.
• D. It excludes other users from editing the configuration.

Answer: CD

NEW QUESTION 17
Which statement is true regarding the Junos OS?

• A. Each process runs in its own protected memory space ensuring that one process cannotdirectly interfere with another.
• B. Processes share memory space but use separate ASICs so that one process cannot directly interfere with another.
• C. A central processor called the IP2 Chip dynamically assigns memory as process needs fluctuate.
• D. The memory management daemon (mmd) is responsible for allocating new memory for processes as they request it.

Answer: A

NEW QUESTION 18
What represents the decimal equivalence of 10101100 00011111 11001001 11000101?

• A. 172.28.187.189
• B. 172.31.201.197
• C. 172.30.231.182
• D. 172.19.151.107

Answer: B

NEW QUESTION 19
Which command do you issue to upgrade the current software on Junos devices?

• A. request system software replace
• B. request system software install
• C. request system software add
• D. request system software upgrade

Answer: C

NEW QUESTION 20
You want to log in to the router and make a configuration change.
After logging in as the root user, what is the next command you must enter?

• A. enable
• B. configure
• C. edit
• D. cli

Answer: D

NEW QUESTION 21
Which two statements about subnet masks are true? (Choose two.)

• A. If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.
• B. If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.
• C. If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.
• D. If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.

Answer: BC

Explanation:
Example: 255.0.0.0 (Class A network), in binary 11111111.00000000. 00000000.00000000
The leftmost octet, 11111111, represents the network prefix, while the other three octets, with zeroes, represent the host portion.
References: http://www.akadia.com/services/ip_routing_on_subnets.html

NEW QUESTION 22
What represents the decimal equivalence of 01101110?

• A. 90
• B. 96
• C. 110
• D. 118

Answer: C

NEW QUESTION 23
Which two statements are true regarding routing policy processing? (Choose two.)

• A. The Junos OS verifies the match criteria of each policy in order and performs the associated action when a match occurs.
• B. Policies are evaluated from right to left as displayed in the Junos OS configuration file.
• C. Polices are evaluated based on the order in which they are applied to a routing protocol.
• D. Policy processing stops once the last statement in the policy is evaluated.

Answer: AC

NEW QUESTION 24
Which parameter must be included when executing operational mode commands from within configuration mode?

• A. insert
• B. do
• C. prompt
• D. run

Answer: D

NEW QUESTION 25
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.

Answer: A

NEW QUESTION 26
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