H12-725_V4.0-ENU 試験問題と解答 - 模擬練習 - 練習問題・模擬試験

Question No : 1
On a Linux host, which of the following files can be viewed to count all user names and login methods in the current system?

A./etc/passwd
B./etc/profile
C./etc/shadow
D./etc/rc.local

正解:

Question No : 2
The "Stuxnet" virus is a worm that attacks industrial control systems.
Which of the following is the correct ranking of the Stuxnet virus attack process?

A.Reconnaissance of organizational structure and personnel information->Social engineering penetration->Looking for infection targets->Using USB flash drives for lateral spread->Launching attacks
B.Find infection targets -> Reconnaissance of organizational structure and personnel information -> Social engineering penetration -> Use USB flash drives to spread horizontally -> Launch attacks
C.Reconnaissance of organizational structure and personnel information->Social engineering penetration->Use USB flash drives to spread horizontally->Find infection targets->Launch attacks
D.Social engineering penetration -> Reconnaissance of organizational structure and personnel information -> Use USB flash drives to spread horizontally -> Find infection targets -> Launch attacks

正解:

Question No : 3
System starts traffic statistics

A.3-4-2-1
B.4-2-3-1
C.2-4-3-1
D.4-3-2-1

正解:

Question No : 4
According to the provisions of the "National Cyber Security Incident Emergency Plan", when national secret information, important sensitive information and relevant educational records are lost or stolen, tampered with or counterfeited, and pose a particularly serious threat to national security and social stability Which level of emergency response should be initiated?

A.First level response
B.Secondary response
C.Special response
D.Level 3 response

正解:

Question No : 5
To check whether there is an abnormal task plan (not set by the user) on the Linux host, which of the following commands can be used?

A.crontab -u mysql
B.crontab -e
C.crontab -r
D.crontab -l

正解:

Question No : 6
Which of the following descriptions of abnormal file type identification results is incorrect?

A.The file type cannot be recognized means that the file type cannot be recognized and there is no file extension.
B.Unrecognized file type means that neither the file type nor the file extension can be recognized.
C.File extension mismatch means that the file type and file extension are inconsistent.
D.File corruption refers to the inability to identify the file type due to the file being damaged.

正解:

Question No : 7
The figure shows the defense principle of HTTP Flood. Which source detection technology is shown in the figure?

A.302 redirect mode
B.Basic mode
C.URI monitoring
D.Enhanced mode

正解:

Question No : 8
Which of the following descriptions of BFD detection characteristics is incorrect?

A.Reduce application interruption time and improve network reliability
B.Establish a session between the two devices to monitor the bidirectional forwarding path
C.Provide a detection time of less than 1 second to speed up network convergence
D.Fault detection can only be performed on the bidirectional forwarding path of the directly connected physical link between network devices.

正解:

Question No : 9
Which of the following descriptions about virtual system resource allocation is incorrect?

A.Unreasonable resource allocation may cause other virtual systems to be unable to obtain resources and the business to be unable to operate normally.
B.Quota resources automatically allocate a fixed number of resources directly according to system specifications.
C.When the administrator manually allocates resources to the virtual system, he first needs to configure the C resource class and specify the guaranteed value and maximum value of each resource item in the resource class, and then bind the source class to the virtual system
D.Each virtual system can share and seize the entire machine resources, but they can be allocated manually.

正解:

Question No : 10
The network architecture of an enterprise is as shown in the figure below. Portal authentication is deployed on SW2. Its authentication-free template is as shown in the figure. Which of the following descriptions is correct?

A.At this time, the terminal can open the authentication interface.
B.At this time, the terminal can ping its own gateway.
C.At this time, the terminal can perform DNS resolution normally.
D.At this time, the terminal can be redirected to the authentication interface by entering the URL in the browser.

正解:

Question No : 11
As shown in the figure, enterprise A and enterprise B need to communicate securely, and an IPSec tunnel is established between firewall A and firewall B. Which of the following security protocols and encapsulation modes can meet the needs of this scenario?

A.AH, tunnel mode
B.ESP, tunnel mode
C.ESP, transmission mode
D.AH+ESP, transmission mode

正解:

Question No : 12
Use IKE v1 main mode to establish an IPSec VPN. After detecting the presence of a NAT device, which of the following ISAKMP messages will be followed by port number conversion?

A.Message 5
B.Message 6
C.Message 3
D.Message 4

正解:

Question No : 13
Which of the following descriptions of the network expansion process in SSL VPN is incorrect?

A.The remote user's local PC will automatically generate a virtual network card. The virtual gateway randomly selects an IP address from the address pool and assigns it to the remote user's virtual network card.
B.The remote user sends a service request message to the server on the enterprise intranet, and the message reaches the virtual gateway through the SSL VPN tunnel.
C.In reliable transmission mode, SSL VPN uses SSL protocol to encapsulate messages and uses UDP protocol as the transmission protocol
D.After the network expansion function is triggered, an SSL VPN tunnel needs to be established between the remote user and the virtual gateway first.

正解:

Question No : 14
Which of the following is not a function of the Anti-DDoS Management Center?

A.Performance management
B.Strategic Management
C.Alarm management
D.Traffic detection

正解:

Question No : 15
Which of the following descriptions about 802.1× authentication is incorrect?

A.In EAP termination mode, EAP messages are directly encapsulated into RADIUS
B.The 802.1X authentication method is divided into EAP relay method and EAP termination method. In comparison, EAP relay method supports more authentication methods.
C.The 802.1X authentication system uses the EAP protocol to realize information exchange between the client, device and authentication server.
D.In the 802.1X authentication method, the client must support the 802.1x protocol.

正解:

Huawei H12-725_V4.0-ENU 問題練習