JN0-335 Trainingsmaterialien: Security, Specialist (JNCIS-SEC) & JN0-335 Lernmittel & Juniper JN0-335 Quiz

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Die JNCIS-SEC-Zertifizierung ist eine der bekanntesten Zertifizierungen in der Netzwerkbranche. Es wird von Arbeitgebern und IT -Fachleuten gleichermaßen geschätzt, da es ein tiefes Verständnis der Sicherheitsgeräte für Netzwerksicherheit und Wacholder -Netzwerke zeigt. Diese Zertifizierung ist auch ein Sprungbrett für Personen, die fortgeschrittenere Zertifizierungen wie die JNCIE-SEC-Zertifizierung von Juniper Networks Certified Internet Expert (JNCIE) verfolgen möchten.

Juniper Security, Specialist (JNCIS-SEC) JN0-335 Prüfungsfragen mit Lösungen (Q13-Q18):

13. Frage
Which two functions does Juniper ATP Cloud perform to reduce delays in the inspection of files?
(Choose two.)

A. Juniper ATP Cloud allows end users to bypass the inspection of files.
B. Juniper ATP Cloud uses a single antivirus software package to analyze files.
C. Juniper ATP Cloud performs a cache lookup on files.
D. Juniper ATP Cloud allows the creation of allowlists.

Antwort: C,D

14. Frage
Which two protocols are supported for Sky ATP advanced anti-malware scanning? (Choose two.)

A. MAPI
B. SMTP
C. POP3
D. IMAP

Antwort: B,D

15. Frage
Exhibit

Referring to the SRX Series flow module diagram shown in the exhibit, where is application security processed?

A. Security Policy
B. Services ALGs
C. Forwarding Lookup
D. Screens

Antwort: B

Begründung:
Explanation
Referring to the SRX Series flow module diagram shown in the exhibit, application security is processed at the Services ALGs stage. Application Layer Gateways (ALGs) are software components that enable the SRX Series device to provide application-level security for specific protocols and applications1.
ALGs inspect the application layer payload of packets and perform various actions, such as modifying the payload, opening pinholes, creating sessions, applying security policies, and enforcing application-specific behavior12.
ALGs are required for protocols and applications that embed IP address information or port numbers in the application layer data, that open secondary connections, or that are dynamically assigned ports1. Some examples of protocols and applications that require ALGs are FTP, SIP, H.323, RTSP, PPTP, and DNS2.
ALGs are configured as part of the security policy and are applied to the traffic that matches the policy criteria. ALGs can also be enabled or disabled globally or per zone12.
References:
1: Application Layer Gateways Overview
2: Application Layer Gateways Feature Guide for Security Devices

16. Frage
Exhibit

Which two statements are correct about the configuration shown in the exhibit? (Choose two.)

A. Replacing the session-init parameter with session-lose will log unidentified flows.
B. The others 300 parameter means unidentified traffic flows will be dropped in 300 milliseconds.
C. The session-class parameter in only used when troubleshooting.
D. Every session that enters the SRX Series device will generate an event

Antwort: B,D

Begründung:
Explanation
The configuration shown in the exhibit is a pre-ID default policy, which is a security policy that applies to traffic that cannot be identified by the SRX Series device before the user authentication process is complete. The pre-ID default policy has the following characteristics1:
It is applied to all traffic that matches the from-zone and to-zone parameters, regardless of the source and destination addresses or applications.
It can only have the permit action, and it cannot be deleted or renamed.
It can have optional parameters such as log, session-timeout, and session-class.
The session-timeout parameter specifies the maximum time that a session can remain idle before it is closed by the SRX Series device. The session-timeout parameter can have different values for different types of traffic, such as TCP, UDP, or others. The others parameter applies to traffic that is not TCP or UDP, such as ICMP or GRE. The value of the others parameter is in seconds, not milliseconds. Therefore, the others 300 parameter means unidentified traffic flows will be dropped in 300 seconds, not milliseconds2. This statement is correct, so option B is a valid answer.
The log parameter enables the SRX Series device to generate a log message for each session that matches the pre-ID default policy. The log parameter can have two values: session-init and session-close. The session-init value logs the session when it is created, and the session-close value logs the session when it is closed. The session-init value is useful for identifying the source and destination of the unidentified traffic, while the session-close value is useful for measuring the duration and volume of the traffic3. The configuration shown in the exhibit has the session-init value, which means every session that enters the SRX Series device will generate an event. This statement is correct, so option C is a valid answer.
The session-class parameter is used to assign a priority to the sessions that match the pre-ID default policy.
The session-class parameter can have four values: high, medium-high, medium-low, and low. The session-class parameter is useful for managing the resources allocated to the sessions and for applying quality of service (QoS) policies. The session-class parameter is not only used when troubleshooting, but also when optimizing the performance and security of the SRX Series device4. This statement is incorrect, so option A is not a valid answer.
Replacing the session-init parameter with session-lose will not log unidentified flows, but rather log the sessions that are closed due to session timeout or other reasons. This will not help in identifying the source and destination of the unidentified traffic, but rather provide information about the duration and volume of the traffic. This statement is incorrect, so option D is not a valid answer.
References:
Pre-ID Default Policy Overview
Configuring Session Timeout Values for Security Policies
Configuring Logging for Security Policies
Configuring Session Class for Security Policies

17. Frage
Where is AppSecure executed in the flow process on an SRX Series device?

A. zones
B. screens
C. services
D. security policy

Antwort: C

18. Frage
......

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Dan Fox Dan Fox

Biography

JN0-335 Trainingsmaterialien: Security, Specialist (JNCIS-SEC) & JN0-335 Lernmittel & Juniper JN0-335 Quiz

Juniper JN0-335 Demotesten, JN0-335 Prüfungsvorbereitung

Juniper Security, Specialist (JNCIS-SEC) JN0-335 Prüfungsfragen mit Lösungen (Q13-Q18):

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