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Which solution will add antivirus features to your SRX Series device?
Answer : B
Content Security is the Juniper solution that adds antivirus capabilities to SRX Series Firewalls. Juniper Content Security includes several UTM-style services, such as antivirus, antispam, content filtering, and web filtering. The antivirus feature scans supported traffic to detect and block malicious files or virus-related content according to configured profiles and policies. IDP provides intrusion detection and prevention signatures, but it is not the specific solution that adds antivirus scanning. NAT translates IP addresses and ports and has no antivirus function. Firewall filters provide stateless packet filtering and traffic classification, not file-based malware inspection. Therefore, Content Security is the correct answer for adding antivirus features to an SRX Series device.
Content filtering supports which two of the following protocols? (Choose two.)
Answer : A, D
Content filtering on SRX devices inspects and controls specific file types transferred across certain application protocols:
SMTP (Option A): Supported. Content filtering can block specific file attachments in emails.
HTTP (Option D): Supported. Content filtering can block downloads of specific file types over web traffic.
SNMP (Option B): Not supported; SNMP is a management protocol, not a content delivery protocol.
TFTP (Option C): Not supported by content filtering.
Correct Protocols: SMTP and HTTP
Which two statements about functional zones are correct? (Choose two.)
Answer : A, D
A functional zone is used for special purposes, such as management interfaces. Juniper documentation states that currently only the management (MGT) functional zone is supported, which makes option A correct. The management functional zone is used for dedicated management interfaces and can be configured with host-inbound-traffic and screen options to protect management access, which makes option D correct. Option B is incorrect because functional zones are not groups of logical interfaces belonging to multiple security zones; they are special-purpose zones. Option C is incorrect because Juniper specifically states that the management functional zone cannot be specified in security policies, and traffic entering the management zone does not match policies.
You have a situation where legitimate traffic is incorrectly identified as malicious by your screen options.
In this scenario, what should you do?
Answer : D
Screen options are used to detect and prevent attacks such as floods, scans, and malformed packets. In some cases, false positives may occur, where legitimate traffic is mistakenly identified as malicious.
To address this, administrators can configure the alarm-without-drop option (Option D). This setting generates alarms/logs for suspicious traffic without actually dropping it, allowing verification before taking further action.
Enabling all screen options (Option A) may increase false positives further.
Discarding traffic immediately (Option B) risks disrupting legitimate communication.
Increasing sensitivity (Option C) worsens the problem, since false positives would increase.
Correct Action: Use alarm-without-drop to log the traffic without dropping it.
What are three requirements for creating a custom application? (Choose three.)
Answer : A, C, E
A Junos custom application is a security policy object used when a predefined Junos application does not match the traffic requirement. To create one, you must define an application name, the transport protocol, and port information such as the destination port. Juniper documentation describes custom application attributes as including the name, transport protocol, and source or destination port numbers for TCP or UDP applications. The security policy itself is not a required attribute of the custom application object; it is where the object is later referenced. The source address is also not part of defining the application object. Therefore, the valid requirements are the port number, application name, and protocol.
