信頼できるJNCIA-SEC JN0-231問題集PDF 2025年06月01日最近更新された問題
必ず合格できるJuniper JN0-231試験正確な107問題と解答あります
JN0-231試験の準備には、Juniper Networksセキュリティ製品との自己学習、実践的な経験、およびJuniper Networksが認可されたトレーニングパートナーが提供するトレーニングコースの組み合わせが必要です。適切な準備と献身により、個人はJN0-231試験に成功し、ITセキュリティ分野でのキャリアを向上させる貴重な認定を得ることができます。
質問 # 55
Click the Exhibit button.
What is the purpose of the host-inbound-traffic configuration shown in the exhibit?
- A. to deny and log all host inbound traffic on the internal security zone, except for HTTP traffic
- B. to permit all host inbound traffic on the internal security zone, but deny HTTP traffic
- C. to permit host inbound HTTP traffic and deny all other traffic on the internal security zone
- D. to permit host inbound HTTP traffic on the internal security zone
正解：B
質問 # 56
When operating in packet mode, which two services are available on the SRX Series device? (Choose two.)
- A. CoS
- B. IDP
- C. MPLS
- D. UTM
正解：A、C
質問 # 57
Which two traffic types are considered exception traffic and require some form of special handling by the PFE? (Choose two.)
- A. ICMP reply messages
- B. HTTP sessions
- C. SSH sessions
- D. traceroute packets
正解：A、D
質問 # 58
What are two valid address books? (Choose two.)
- A. 66.129.239.0/24
- B. 66.129.239.50/25
- C. 66.129.239.128/25
- D. 66.129.239.154/24
正解：B、D
質問 # 59
Which two feature on the SRX Series device are common across all Junos devices? (Choose two.)
- A. The separation of control and forwarding planes
- B. screens
- C. UTM services
- D. Stateless firewall filters
正解：A、D
質問 # 60
Which flow module components handles processing for UTM?
- A. Services
- B. Screen options
- C. Zones
- D. Policy
正解：A
質問 # 61
What is the main purpose of using screens on an SRX Series device?
- A. to provide multiple ports for accessing security zones
- B. to provide protection against common DoS attacks
- C. to provide an alternative interface into the CLI
- D. to provide information about traffic patterns traversing the network
正解：B
解説：
The main purpose of using screens on an SRX Series device is to provide protection against common Denial of Service (DoS) attacks. Screens help prevent network resources from being exhausted or unavailable by filtering or blocking network traffic based on predefined rules. The screens are implemented as part of the firewall function on the SRX Series device, and they help protect against various types of DoS attacks, such as TCP SYN floods, ICMP floods, and UDP floods.
質問 # 62
What does the number "2" indicate in interface ge-0/1/2?
- A. the port number
- B. the physical interface card (PIC)
- C. the interface logical number
- D. the flexible PIC concentrator (FPC)
正解：A
質問 # 63
Screens on an SRX Series device protect against which two types of threats? (Choose two.)
- A. IP spoofing
- B. malicious e-mail attachments
- C. zero-day outbreaks
- D. ICMP flooding
正解：A、D
解説：
ICMP flood
Use the ICMP flood IDS option to protect against ICMP flood attacks. An ICMP flood attack typically occurs when ICMP echo requests use all resources in responding, such that valid network traffic can no longer be processed.
The threshold value defines the number of ICMP packets per second (pps) allowed to be send to the same destination address before the device rejects further ICMP packets.
IP spoofing
Use the IP address spoofing IDS option to prevent spoofing attacks. IP spoofing occurs when an invalid source address is inserted in the packet header to make the packet appear to come from a trusted source.
https://www.juniper.net/documentation/us/en/software/junos/denial-of-service/topics/topic-map/security-introduction-to-adp.html
質問 # 64
When configuring IPsec VPNs, setting a hash algorithm solves which security concern?
- A. Encryption
- B. Availability
- C. Integrity
- D. Redundancy
正解：C
質問 # 65
What must be enabled on an SRX Series device for the reporting engine to create reports?
- A. SNMP
- B. system logging
- C. security logging
- D. packet capture
正解：C
質問 # 66
What is the default value of the dead peer detection (DPD) interval for an IPsec VPN tunnel?
- A. 5 seconds
- B. 20 seconds
- C. 10 seconds
- D. 40 seconds
正解：A
解説：
The default value of the dead peer detection (DPD) interval for an IPsec VPN tunnel is 5 seconds. DPD is a mechanism that enables the IPsec device to detect if the peer is still reachable or if the IPsec VPN tunnel is still active. The DPD interval determines how often the IPsec device sends DPD packets to the peer to check the status of the VPN tunnel. A value of 5 seconds is a common default, but the specific value can vary depending on the IPsec device and its configuration.
Reference:
Juniper Networks Technical Documentation: Configuring IPsec VPNs: https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/ipsec-vpn-overview-srx-series.html
質問 # 67
An application firewall processes the first packet in a session for which the application has not yet been identified.
In this scenario, which action does the application firewall take on the packet?
- A. It holds the first packet until the application is identified.
- B. It denies the first packet.
- C. It denies the first packet and sends an error message to the user.
- D. It allows the first packet.
正解：A
解説：
This is necessary to ensure that the application firewall can properly identify the application and the correct security policies can be applied before allowing any traffic to pass through.
If the first packet was allowed to pass without first being identified, then the application firewall would not know which security policies to apply - and this could potentially lead to security vulnerabilities or breaches. So it's important that the first packet is held until the application is identified.
質問 # 68
Which two UTM features should be used for tracking productivity and corporate user behavior? (Choose two.)
- A. the Web filtering UTM feature
- B. the antispam UTM feature
- C. the antivirus UTM feature
- D. the content filtering UTM feature
正解：A、D
質問 # 69
When creating a site-to-site VPN using the J-Web shown in the exhibit, which statement is correct?
- A. The remote gateway is configured automatically based on the local gateway settings.
- B. RIP, OSPF, and BGP are supported under Routing mode.
- C. Privately routable IP addresses are required.
- D. The authentication method is pre-shared key or certificate based.
正解：C
質問 # 70
......
2025年最新の実際にある検証済みのJN0-231問題集：https://jp.fast2test.com/JN0-231-premium-file.html
合格させるJN0-231試験で更新された107問題あります：https://drive.google.com/open?id=1asCq9g4-9KHBBg3PtqnV--Y9gmUfEddk