JN0-335 : Security, Specialist (JNCIS-SEC) Exam

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Juniper
JN0-335
Security, Specialist (JNCIS-SEC)
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Question: 626
abling packet capture on specific interfaces for detailed traffic analysis. nfiguring flow monitoring to track traffic statistics and patterns. plementing endpoint security solutions to monitor device behavior. lizing SNMP traps to alert on network anomalies.
er: A, B
nation: Packet capture provides detailed insights into traffic flows, while flow monitoring all lection of statistics and patterns, enhancing visibility and facilitating analysis of network beh
ion: 627
re the implications of enabling "Jumbo Frames" on a Juniper switch, and which two conside e taken into account? (Choose two.)
mbo Frames can significantly increase throughput by reducing CPU overhead associated with sing smaller packets.
devices within the network must support Jumbo Frames to avoid fragmentation and potenti loss.
abling Jumbo Frames may require reconfiguration of QoS policies to accommodate the large
use of Jumbo Frames can lead to increased latency in network traffic due to larger packet s
You are tasked with enhancing the visibility of network traffic through your Juniper SRX device. Which two features should you implement to achieve better monitoring and analysis capabilities? (Choose two.)
1. En
2. Co
3. Im
4. Uti Answ
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Answer: B, C
Explanation: For Jumbo Frames to be effective, all network devices must support them to prevent fragmentation. Additionally, QoS policies may need adjustments to handle the larger frame sizes appropriately, ensuring optimal performance.
Question: 628
What is the primary function of a Juniper IDP (Intrusion Detection and Prevention) system in a network security architecture, and how does it differ from traditional firewall capabilities?
1. To analyze and block malicious traffic based on signatures
2. To provide antivirus protection for network traffic
3. To encrypt sensitive data in transit
nation: The primary function of a Juniper IDP system is to analyze and block malicious traffi n signatures and behavior, differentiating it from traditional firewalls that primarily focus o ng or denying traffic based on predefined rules.
ion: 629
three configurations are necessary to secure Juniper firewall filters? (Choose three.) fining filter action precedence
abling logging within the filter nfiguring global firewall policies ting interface-specific filters plementing IPsec encapsulation
er: A, B, D
nation: To secure Juniper firewall filters, it is crucial to define the precedence of filter action the correct application order, enable logging for monitoring and auditing purposes, and set ce-specific filters to apply different rules based on traffic direction and type.
To facilitate secure remote access for users Answer: A
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Question: 630
When configuring a Juniper SRX Series device for intrusion prevention, which two components are critical in defining the behavior of the intrusion detection system (IDS) and intrusion prevention system (IPS)? (Choose two.)
1. Security policies
2. Threat intelligence feeds
3. Packet capture settings
4. Application layer gateways Answer: A, B
Explanation: Security policies are essential for defining what constitutes malicious behavior within the network and how the IDS/IPS should respond. Threat intelligence feeds enhance the system's ability to identify and block known threats, making them critical components of effective intrusion prevention.
ion: 631
work administrator is tasked with implementing a firewall policy that restricts access to sensi ased on user roles. What method should the administrator prioritize to ensure that only autho an access this data while maintaining compliance with organizational security standards?
plementing static IP address filtering nfiguring a DMZ for data access orcing network segmentation
lizing role-based access control (RBAC) er: D
nation: Role-based access control (RBAC) allows organizations to assign permissions based nsuring that only authorized users can access sensitive data. This method aligns with compl rds by limiting access based on job functions.
ion: 632
re conducting a security assessment of your network and need to identify potential vulnerabil
Quest
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data b rized
users c
1. Im
2. Co
3. Enf
4. Uti Answ
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Quest
You a ities.
Which tool on your Juniper device would be most useful for this task?
1. Network Scanner
2. Vulnerability Assessment Tool
3. Log Analyzer
4. Configuration Management Tool Answer: B
Explanation: A Vulnerability Assessment Tool helps identify weaknesses within your network
infrastructure, which is crucial for maintaining security.
Question: 633
While reviewing the configuration of a Juniper SRX device, you come across multiple security policies with overlapping match conditions. What is the recommended approach to resolve this issue?
nsolidate policies to eliminate redundancy and ensure clarity.
intain the overlapping policies to allow for flexibility in traffic handling. oritize policies based on the order they appear in the configuration. cument each policy's purpose to justify their coexistence.
er: A, C
nation: Consolidating policies reduces complexity and redundancy, while prioritization based uration order ensures that the most relevant policies are applied first.
ion: 634
the most significant challenge an organization faces when transitioning to a hybrid cloud nment in terms of security management?
reased costs associated with cloud services k of user adoption for cloud applications
mplexity of managing security across multiple environments ficulty in integrating legacy systems
er: C
Co
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Answ
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Quest
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2. Lac
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4. Dif Answ
Explanation: The complexity of managing security across multiple environments is the most significant challenge when transitioning to a hybrid cloud environment, as it requires consistent policies and visibility across both on-premises and cloud infrastructures.
Question: 635
Which of the following strategies is essential for maintaining the effectiveness of Juniper Advanced Threat Prevention systems in the face of rapidly evolving cyber threats?
1. Continuous learning and adaptation through AI and machine learning
2. Relying solely on historical data for decision-making
3. Limiting access to security logs
4. Reducing the frequency of system updates Answer: A
nation: Continuous learning and adaptation through AI and machine learning are essential str intaining the effectiveness of Juniper Advanced Threat Prevention systems, enabling them to
respond dynamically to new threats.
ion: 636
ulti-layered security architecture, which two elements are crucial for ensuring effective appli security?
lating application servers from the rest of the network
plementing a comprehensive set of security policies that span all layers ying solely on perimeter defenses to secure applications
gularly updating application components to the latest versions er: B, D
nation: A comprehensive set of security policies across all layers ensures holistic protection, rly updating application components mitigates vulnerabilities that could be exploited by attac
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3. Rel
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Question: 637
While configuring your security infrastructure, you realize the need for automated policy enforcement based on user behavior. Which technology would best address this requirement?
1. Firewall rule sets
2. Network segmentation
3. User Behavior Analytics (UBA)
4. Static ACLs Answer: C
Explanation: User Behavior Analytics (UBA) provides insights into user activity patterns and can automate policy enforcement based on detected anomalies, enhancing security.
ion: 638
three statements regarding the SRX Series firewall's application security features are true? se three.)
plication security features can identify and control specific applications traversing the networ firewall can only block applications but cannot allow them based on policies.
plication signatures must be manually updated to recognize new threats.
application security capabilities can integrate with user identity information for policy ement.
icies can be defined to restrict access to specific applications during certain times. er: A, D, E
nation: SRX firewalls can identify and control applications, integrate with user identity for p ement, and allow time-based restrictions on application access.
ion: 639
mplementing IPSec VPNs on Juniper devices, which of the following statements correctly bes the purpose and function of the IKE phase in establishing a secure tunnel?
Quest
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2. The
3. Ap
4. The enforc
5. Pol Answ
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Quest
When i descri
1. IKE phase establishes the security association and negotiates the encryption and authentication methods used for the VPN.
2. IKE phase is responsible for encrypting the data payload between the peers.
3. IKE phase is only used for key management and does not impact the actual data traffic.
4. IKE phase ensures that only authenticated users can establish a VPN connection, but does not handle key exchanges.
Answer: A
Explanation: The IKE (Internet Key Exchange) phase is crucial in establishing a secure tunnel for IPSec VPNs as it negotiates the security association parameters, including encryption and authentication methods. This negotiation is essential for ensuring that both peers agree on the cryptographic standards before any secured data transmission occurs.
rganization requires that all email traffic be inspected for malware before it is delivered to u of the firewall configuration on a Juniper SRX device, which feature should you enable to this?
able application awareness for all email protocols.
plement a dedicated email security gateway before the firewall. the threat prevention settings to inspect email traffic.
nfigure logging to monitor email traffic without inspection. er: C
nation: Enabling threat prevention settings on the SRX device allows for malware inspection raffic, ensuring that threats are mitigated before reaching users.
ion: 641
of the following is a key requirement for deploying Juniper's vSRX in cloud environments optimal performance and scalability?
ficient physical resources
Question: 640
Your o sers.
As part achieve
1. En
2. Im
3. Use
4. Co
Answ
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email t
Quest
Which to
ensure
1. Suf
2. Static IP addressing
3. Limited network segmentation
4. No external firewall integration Answer: A
Explanation: Sufficient physical resources are necessary to ensure that the vSRX can handle the expected traffic load and provide the required performance in cloud environments.
Question: 642
Which two configurations should be prioritized when deploying a Juniper SRX device in a multi-tenant environment? (Choose two.)
1. Implement virtual routers for traffic isolation.
2. Disable all logging features to save storage.
a single IP address for all tenants. er: A, C
nation: Implementing virtual routers and security zones is critical for isolating tenants and ma ffectively in a multi-tenant environment, enhancing both security and performance.
ion: 643
re tasked with configuring a security policy that restricts access to a specific web application roles. Which of the following configurations would best achieve this goal?
fine user roles in the security policy and apply them directly to security zones. plement role-based access control (RBAC) within the security policy configuration.
a dynamic address book to group users based on their roles and apply it in the policy. nfigure application firewall rules that specify user roles in the match criteria.
er: B, C
nation: Role-based access control allows for fine-grained control over user access, while dyn books can help group users by roles, making policy application more efficient.
Utilize security zones for segmentation.
3. Use Answ
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Quest
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Question: 644
A company is implementing a new security policy that requires all remote access to corporate resources to be encrypted. What type of VPN should the network administrator configure to meet this requirement while allowing users to connect securely from various locations?
1. Site-to-site VPN
2. SSL VPN
3. Remote access VPN
4. IPsec VPN Answer: B
Explanation: An SSL VPN allows for secure remote access to corporate resources over the internet, providing encryption for connections while being user-friendly and compatible with various devices and locations.
ion: 645
the significance of certificate revocation lists (CRLs) in SSL proxy environments? Ls are unnecessary as SSL proxies do not require any form of certificate validation.
ey provide a mechanism for SSL proxies to verify that certificates presented by clients or ser ot been revoked.
Ls are only used in non-SSL environments and have no relevance in secure communications Ls should be ignored to streamline the SSL handshake process.
er: B
nation: Certificate revocation lists (CRLs) are essential for SSL proxies to verify that the cates presented during the SSL handshake have not been revoked, ensuring the trustworthine mmunication.
ion: 646
Quest
What is
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2. Th vers
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3. CR .
4. CR
Answ Expla
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Quest
Which three types of malware can be effectively mitigated using Juniper's advanced malware detection features? (Choose three.)
1. Ransomware
2. Adware
3. Rootkits
4. Keyloggers
5. Worms Answer: A, C, D
Explanation: Advanced malware detection features can effectively mitigate ransomware, which encrypts files for ransom, rootkits that hide malicious activities from detection, and keyloggers that capture keystrokes for credential theft.

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