Juniper JN0-335 Certification Exam Sample Questions and Answers

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Juniper JN0-335 (JNCIS-SEC) Sample Questions:

01. At which step in the packet flow are Junos Screen checks applied?
a) prior to the route lookup
b) prior to security policy processing
c) after ALG services are applied
d) after source NAT services are applied
02. You need to implement Junos Screen options to protect traffic coming through the ge-0/0/0 and ge-0/0/1 interfaces which are located in the trust and DMZ zones, respectively. Where would you enable the Junos Screen options?
a) in the trust and DMZ zone settings
b) on the ge-0/0/0 and ge-0/0/1 interfaces
c) in a security policy
d) in the global security zone settings
03. What are three valid actions for a then statement in a security policy?
(Choose three.)
a) reject
b) discard
c) accept
d) deny
e) permit
04. Which two statements are correct regarding reth interfaces?
(Choose two.)
a) Child interfaces must be in the same slot on both nodes
b) Child interfaces do not need to be in the same slot on both nodes.
c) Child interfaces must be the same Ethernet interface type.
d) Child interfaces can be a mixture of Ethernet interface types.
05. You are asked to establish an IPsec VPN between two sites. You are also required to establish an OSPFv2 adjacency across this VPN.
a) policy-based VPN
b) protocol-based VPN
c) destination-based VPN
d) route-based VPN
06. You are building a VPN tunnel between two SRX Series devices. You want the tunnel to always be established, even if there is no traffic to send. Which action would be used to achieve this goal?
a) Configure an RPM probe to constantly ping across the links. 
b) Configure vpn-monitor with the optimized parameter on the tunnel. 
c) Configure establish-tunnels with the immediately parameter. 
d) Configure the OSPF demand-circuit feature on the tunnel interface.
07. What is the default timeout for a TCP session on an SRX Series device?
a) 1 minute
b) 1 hour
c) 30 seconds
d) 30 minutes
08. Which two are negotiated during Phase 2 of an IPsec VPN tunnel establishment?
(Choose two.)
a) security protocol
b) VPN monitor interval
c) UDP port number
d) proxy IDs
09. You want to show interface-specific zone information and statistics. Which operational command would be used to accomplish this?
a) show security zones detail 
b) show interfaces ge-0/0/3.0
c) show interfaces terse
d) show interfaces ge-0/0/3.0 extensive
10. You have just configured source NAT with a pool of addresses within the same subnet as the egress interface. What else must be configured to make the addresses in the pool usable?
a) static NAT
b) destination NAT
c) address persistence
d) proxy ARP


Question: 01

Answer: a

Question: 02

Answer: a

Question: 03

Answer: a, d, e

Question: 04

Answer: b, c

Question: 05

Answer: d

Question: 06

Answer: c

Question: 07

Answer: d

Question: 08

Answer: a, d

Question: 09

Answer: d

Question: 10

Answer: d

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