Which statement is true regarding the Network Time Protocol (NTP) on Junos devices?
A.
MD5 authentication is supported by the Junos OS.
B.
Server mode is not supported by the Junos OS.
C.
The Junos OS can provide a primary time reference.
D.
The Junos OS does not support the use of a boot server.
Explanation:
A Message Digest 5
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CLI Quick Configuration
To quickly configure NTP, copy the following commands and paste them into the switch’s terminal window:
[edit system]
set ntp boot-server 10.1.4.1
set ntp server 10.1.4.2
set ntp authentication-key 2 type md5 value “$9$aH1j8”
Step-by-Step Procedure
To configure NTP :
Specify the boot server:
[edit system]
user@switch# set ntp boot-server 10.1.4.1
Specify the NTP server:
[edit system]
user@switch# set ntp server 10.1.4.2
Specify the key number, authentication type (MD5), and key for authentication:
[edit system]
user@switch# set ntp authentication-key 2 type md5 value “$9$aH1j8”
Results
Check the results:
[edit system]user@switch# show
ntp {boot-server 10.1.4.1;authentication-key 2 type md5 value “$9$aH1j8”; ## SECRET-DATAserver 10.1.4.2;}
show system uptime
show ntp association
show ntp status
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New JN0-102 Exam Questions and Answers Updated Recently (8/May/2017):
NEW QUESTION 358
Which two statements describe the default behavior for OSPF? (Choose two.)
A. OSPF imports all routes into the inet4.0 routing table.
B. OSPF exports all static routes into the OSPF database.
C. OSPF imports all routes into the inet.0 routing table.
D. OSPF does not export static routes into the OSPF database.
Answer: CD
NEW QUESTION 359
Which two ping command parameters whould be used to troubleshoot MTU issues? (Choose two.)
A. ping do-not-fragment
B. ping rapid
C. ping verbose
D. ping size
Answer: AD
NEW QUESTION 360
Which command prompt indicates that you are in operational mode?
A. user @ router &
B. user @ router #
C. user @ router $
D. user @ router >
Answer: D
NEW QUESTION 361
Which keystroke combination allows users to move the cursor to the beginning of the command line without deleting text?
A. Ctrl + u
B. Ctrl + w
C. Ctrl + a
D. Ctrl + b
Answer: C
NEW QUESTION 362
What is the subnet mask for the 172.45.32.6/19 address?
A. 255.255.224.0
B. 255.255.240.0
C. 255.224.0.0
D. 255.240.0.0
Answer: A
NEW QUESTION 363
Click the Exhibit button. Referring to the exhibit, what happens when ping packets are sent to the management interface address of the local router?
user@router> show route protocol static
inet.0: 15 destinations, 15 routes (15 active, 0 holddown, 0 hidden)
+ = Active Route, – = Last Active, * = Both
99.0.0.0/17 *[Static/5] 00:00:11
————— > to 10.1.1.2 via ge-0/0/1.0
99.0.0.0/19 *[Static/5] 00:00:11
————— > to 10.1.2.2 via ge-0/0/2.0
99.0.0.0/24 *[Static/5] 00:00:11
————— > to 10.1.3.2 via ge-0/0/3.0
99.0.0.0/26 *[Static/5] 00:00:11
————— > to 10.1.4.2 via ge-0/0/4.0
Referring to the exhibit, which next-hop interface will be used to reach the 10.21.14.16 destination?
A. ge-0/0/1.0
B. ge-0/0/0.0
C. ge-0/0/3.0
D. ge-0/0/2.0
Answer: A
NEW QUESTION 364
What is the default firewall filter behavior when a term is matched but no terminating action is specified?
A. an implicit deny and the filter evaluation terminates
B. an implicit accept and the filter evaluation terminates
C. an implicit accept and the filter evaluation continues to the next term
D. an implicit deny and the filter evaluation continues to the next term
Answer: C
NEW QUESTION 365
What are three interface prefixes for a 40-gigabit interface? (Choose three.)
A. et
B. es
C. fte
D. xe
E. xle
Answer: ABE
NEW QUESTION 366
Which source of routing information is preferred by default?
A. static
B. RIP
C. direct
D. BGP
Answer: C
NEW QUESTION 367
For the interface ge-1/2/3.4, what does “ge” represent?
A. SONET/SDH
B. Gigabit Ethernet
C. Aggregated Ethernet
D. GRE
Answer: B
NEW QUESTION 368
Which word starts a command to display the operational status of a Junos device?
A. put
B. set
C. show
D. get
Answer: C
NEW QUESTION 369
……
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