Juniper Networks Security, Associate (JNCIA-SEC, JN0-232) (JNCIA-SEC) (JNCIA-SEC) — Questions 76–150

An administrator creates a global address book and a security zone-specific address book. A host address is defined with the same name in both address books, but with different IP subnets. When a packet originates from that security zone, which address book entry takes precedence?

You are troubleshooting a connection failure where traffic passing from zone A to zone B is being blocked. You check the security policies and notice an explicit permit rule exists, but traffic is still dropped. Upon reviewing session details using the operational command 'show security flow session', you see no session is created. Which feature or tool would best help you verify if the security policy match is failing due to zone mismatches or incorrect match criteria?

Which THREE components are mandatory when defining a standard zone-based security policy rule in Junos OS? (Choose three.)

You want to create a security policy that applies to traffic originating from a specific address book entry named 'HQ-Net' in the 'trust' zone destined for 'Branch-Net' in the 'untrust' zone. Where must the 'HQ-Net' address be defined?

You need to verify the resource utilization of the Routing Engine on an SRX Series gateway, specifically checking CPU load averages and memory usage. Which command should you execute?

You need to configure a custom application that matches UDP traffic on a range of destination ports from 5000 to 5010. How should you specify this range in the application configuration?

During packet flow troubleshooting on an SRX Series device, an administrator uses security flow traceoptions with the flag 'packet'. What potential impact should the administrator be aware of before enabling this on a high-throughput production device?

An administrator configures Web Filtering and wants to view summary statistics of blocked categories. Which operational command should be executed?

Which THREE conditions or configurations can cause asymmetric routing or session drops when implementing Destination NAT or Static NAT? (Choose three)

An administrator configures Destination NAT so that traffic arriving on the external interface destined for IP 198.51.100.25 is translated to 10.0.0.5. After applying the configuration, internal hosts on the trust zone attempt to access 198.51.100.25 and fail. What feature is required to allow internal hosts to access a server hosted inside their own network via its public IP address?

An administrator notices that web filtering queries are failing because the SRX device cannot reach the cloud rating server over the internet. Which command can be used to troubleshoot connectivity to the cloud rating server from the Junos CLI?

You need to group multiple IPv4 subnets and range combinations into a single object for use in security policies. Which configuration object should you create?

Which Junos command allows an administrator to view the status of IPsec VPN tunnels, including Phase 1 (IKE) negotiation state?

You have multiple security policies configured within the context of a specific source and destination zone. A new requirement dictates that a specific subset of users must be denied access while everyone else in the same zone remains permitted. How should you order your security policies to achieve this without disrupting existing traffic?

An administrator configures Antispam inspection, but wants to ensure that emails from internal trusted hosts bypass antispam scanning. How should this be handled?

Which statement is true regarding Junos OS address books?

Which Junos OS CLI command is used to display currently active Application Layer Gateways (ALGs) and their status?

An administrator is troubleshooting session table memory usage on an SRX Series gateway. Which THREE parameters or statistics can be analyzed using operational commands to understand active session distribution? (Choose three)

Which Junos operational command allows an administrator to verify the configuration syntax and structure of all NAT rules before committing?

An administrator needs to verify whether ALG (Application Layer Gateway) for FTP is currently enabled and active on an SRX device. Which command should be used?

Which TWO components are typically analyzed when troubleshooting an IPsec VPN Phase 1 negotiation failure using traceoptions? (Choose two)

An administrator configures a security zone and adds the 'tcp-drop-synfin-set' SCREEN option. What specific packet characteristic does this option target?

An engineer wants to view active security associations (SAs) for an IPsec VPN tunnel to troubleshoot connectivity. Which command should be used?

Which THREE methods can be used to modify the order of existing security policies in Junos OS? (Choose three.)

An administrator creates a security zone and assigns multiple interfaces to it. One of the interfaces is configured with host-inbound-traffic allowed services for SSH. What happens to SSH access to the other interfaces in the same security zone?

An administrator configures a security policy on a SRX Series device with the action set to 'count'. What is the primary function of this action in Junos security policies?

When defining a custom application in Junos OS, you specify the protocol as TCP and set a source port range of 1024-65535 and a destination port of 8080. How does Junos evaluate this application in security policies?

An enterprise network uses Juniper SRX Series devices running Junos OS with Integrated Web Filtering. Due to privacy regulations, the administrator needs to ensure that specific sensitive URLs are not logged by the cloud rating server or the local SRX log. Which CLI parameter should be adjusted within the web-filtering profile?

When configuring Destination NAT and Static NAT on Junos OS, which THREE requirements must be met for inbound traffic to successfully reach an internal server? (Choose three)

While reviewing security flow traceoptions output, you see a packet dropped with the reason "Session table full". What is the immediate consequence of this event on incoming new traffic?

Where are system log messages related to security policies typically directed when default logging configurations are used?

Which THREE services can be enabled under host-inbound-traffic system-services in Junos OS security zones? (Choose three)

Which command allows an administrator to view the factory-default configuration or rollback to a previous configuration version on an SRX device?

When configuring High Availability (HA) Clustering on SRX Series devices, which THREE components or files are synchronized between the primary and secondary nodes? (Choose three)

What is the primary difference between a zone-based security policy and a global security policy in Junos OS?

You are troubleshooting a complex Static NAT setup where an internal mail server (10.10.10.5) is mapped to a public IP (198.51.100.5). External inbound connections work, but outbound connections initiated from the mail server show that the source IP is being translated by a general interface-based Source NAT rule rather than the Static NAT mapping. How do you ensure outbound connections from the mail server use its Static NAT public IP?

You suspect that a specific security policy rule is shadowing another rule. How can you review the evaluated order of security policies?

Which TWO functional zones are built-in and available by default in Junos OS? (Choose two)

An administrator needs to configure a redundant interface on an SRX Series device to combine two physical interfaces into a single logical interface for high availability and link resiliency. Which interface type should be configured?

An administrator notices that FTP traffic is failing inspection when traversing the SRX device. Upon investigation, it is found that the default ALG for FTP is interfering with non-standard control ports. Where would you modify or disable the FTP ALG in Junos OS?

You are configuring a security policy that needs to match multiple specific applications (HTTP, HTTPS, and SSH) within a single rule. How should you specify these applications in the Junos CLI?

An administrator implements a security policy allowing HTTP traffic from the trust zone to the untrust zone. After committing the changes, web traffic fails because return traffic from the server is being dropped. What is the most likely cause of this behavior on a stateful SRX device?

You are configuring a vSRX Virtual Firewall in a private cloud. Which virtual interface type is typically used for management traffic in a vSRX deployment?

An administrator configures a unified security policy with a custom application signature. However, traffic matching the expected port is failing because the application identification engine (AppID) has not yet recognized the session payload. What mechanism does Junos use to handle initial packets while AppID inspects the traffic?

Where are address books defined when configuring zone-based security policies in Junos OS?

An enterprise network uses a vSRX deployed on a hypervisor. The administrator needs to allocate additional vCPUs to improve throughput. Which component's performance is primarily enhanced by increasing vCPUs on a vSRX?

An administrator needs to configure a security zone in Junos OS that will contain the management interface for out-of-band access. Which zone type is appropriate for this requirement?

You need to verify whether application identification (AppID) is successfully classifying traffic within security policies. Which command displays AppID session details?

Which TWO methods can be used to perform Source NAT on a Junos OS SRX Series device? (Choose two)

Which TWO actions are available when configuring the 'then' statement in a Junos security policy? (Choose two.)

An enterprise network has multiple virtual routers configured within separate routing instances. How do security policies interact with traffic passing between two different routing instances on the same SRX device?

Which TWO factors contribute to policy shadowing in Junos security policy evaluation? (Choose two.)

You are troubleshooting a complex network where Destination NAT forwards traffic to a server farm. Due to high availability requirements, the destination NAT pool contains multiple internal server IP addresses. How does Junos OS distribute incoming destination NAT connections across multiple pool IP addresses?

When configuring Static NAT on a Junos OS device, which THREE operational or design considerations are vital for correct multi-service deployments? (Choose three)

Which THREE methods can be used to examine Junos system log files for security events? (Choose three)

You are troubleshooting a session-based firewall configuration on an SRX Series device. An application establishes a control connection on one port, but dynamically negotiates a secondary data port for file transfers. Without configuring an explicit policy for the secondary dynamic port, what Junos feature enables the security policy to dynamically permit this secondary data flow?

When analyzing security policy behavior and troubleshooting traffic drops, which TWO commands are most helpful for verifying policy matches and active sessions? (Choose two)

Which command is used to display current CPU and memory utilization on an SRX Series services gateway?

Which TWO components are fundamental parts of the SRX Series architecture in enterprise-class hardware models? (Choose two)

What is the primary function of the Integrated Web Filtering feature on Juniper SRX Series firewalls?

Which Junos CLI command allows an administrator to verify the active hit count and packet match statistics for a specific security policy?

An administrator needs to ensure that when a web filtering block occurs, a specific redirect URL is presented to the user. Where is the redirect URL configured within the web filtering profile?

You need to create a custom application in Junos OS that matches HTTP traffic running on non-standard port 8080. How should you define this application?

An administrator configures application-based security policies (AppID) on an SRX device. During traffic analysis, they notice that the initial packets of a session are matched against standard port-based policies before AppID determines the specific application. What mechanism explains this behavior?

You want to create an address set that combines two address sets and one individual IP address object. Is this supported in Junos OS?

Which TWO tools or operational commands are most useful for verifying security policy configuration syntax and validity before committing? (Choose two.)

When troubleshooting a unified security policy involving AppID and UTM services, which THREE elements must be correctly configured for the security policy to successfully apply content inspection? (Choose three.)

An engineer is troubleshooting a potential Denial of Service (DoS) attack. They want to check if screen options have dropped any packets on a specific security zone. Which command should be used?

You are configuring secure remote access to an SRX Series device via SSH. Which configuration hierarchy is used to restrict administrative access to specific trusted source IP addresses?

An administrator is configuring static NAT on an SRX Series gateway to map a public IP address to an internal web server. Which THREE components are required to successfully implement Static NAT? (Choose three)

Which TWO elements are mandatory when attaching a UTM policy to a security policy in Junos OS? (Choose two.)

Which Junos configuration hierarchy is used to define Destination NAT rule-sets?

An administrator wants to monitor security screening checks such as SYN flood protection counters. Which operational command should be used?

Which THREE types of information are displayed when executing the 'show security flow session extensive' command? (Choose three)

Which THREE parameters can be used to filter output when executing the 'show security flow session' command? (Choose three)