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The HCIA-Security V4.0 certification is highly valued in the IT industry, as it demonstrates a candidate’s proficiency in security technologies and concepts. It is an excellent way for IT professionals to advance their careers and gain recognition for their expertise. The certification is recognized globally and is highly respected by employers, making it an ideal choice for anyone looking to pursue a career in security.
NEW QUESTION # 43
The network environment is becoming more and more complex, and network security incidents occur frequently. While accelerating the construction of informatization, enterprises must not only resist external attacks, but also prevent internal management personnel from being involved in data leakage and operation and maintenance accidents due to operational errors and other issues. Which of the following options might reduce operational risk?
- A. Each system is independently operated, maintained and managed, and the access process is not audited and monitored.
- B. According to the administrator configuration, the O&M user corresponds to the background resource account, and restricts the unauthorized use of the account. mouth Based on the password security policy, the O&M security audit system automatically modifies the password of the background resource account at regular intervals.
- C. Oral Each department system is independently authenticated and uses a single static password for authentication.
Answer: B
NEW QUESTION # 44
When using passive mode to establish an FTP connection, the control channel uses port 20 and the data channel uses port 21. ( )[Multiple choice]*
- A. False
- B. True
Answer: A
NEW QUESTION # 45
We should choose the encryption algorithm according to our own use characteristics. When we need to encrypt a large amount of data, it is recommended to use the ____ encryption algorithm to improve the encryption and decryption speed.[fill in the blank]*
- A. symmetry
- B. packets
Answer: A
NEW QUESTION # 46
Which of the following NAT technologies can implement a public network address to provide source address translation for multiple private network addresses ( )*
- A. NAPT
- B. Easy-ip
CT Jinglu - C. NAT No-PAT
- D. NAT Server
Answer: D
NEW QUESTION # 47
An engineer needs to back up the firewall configuration. Now he wants to use a command to view all the current configurations of the firewall. May I ask the command he uses is ____[fill in the blank]*
- A. current-configuration
- B. display current-configuration
Answer: B
NEW QUESTION # 48
SSL VPN is a VPN technology that realizes remote secure access through SSL protocol. Which of the following software must be installed when using SSL VPN?
- A. Antivirus
- B. Client
- C. Firewall
- D. Browser
Answer: B
NEW QUESTION # 49
Which of the following protocols is a multichannel protocol?
- A. The Telnet
- B. The SSH
- C. FTP
- D. THE HITP
Answer: C
NEW QUESTION # 50
For which of the following parameters can the packet filtering firewall filter?
- A. Port packet payload
- B. IP address of the port source destination
- C. Port number and protocol number of the port source
- D. The MAC address of the source destination
Answer: B,C
NEW QUESTION # 51
An enterprise wants to build a server system and requires the following functions: 1. The enterprise needs to have its own dedicated mailbox, and the sending and receiving of emails needs to go through the enterprise's server; 2. The server must provide file transfer and access services. Users in different departments of the enterprise provide accounts with different permissions: 3. When the enterprise accesses the internal webpage of the enterprise, the enterprise can directly enter the domain name in the browser to access. To meet the above requirements, which of the following servers do enterprises need to deploy? ( )*
- A. Time synchronization server
- B. FTP server (I)
- C. DNS server
- D. Mail server
Answer: B,C,D
NEW QUESTION # 52
What is the protocol number of the GRE protocol?
- A. 0
- B. 1
- C. 2
- D. The 50th
Answer: C
NEW QUESTION # 53
The following description of IDS, which items are correct
The IDS cannot be linked to the firewall.
- A. The IDS can be upgraded flexibly and in a timely manner, and the strategic configuration operation is convenient and flexible.
- B. With IDS, system administrators can capture traffic from critical nodes and do intelligent analysis to find anomalous and suspicious network behavior and report it to administrators.
- C. Mouth IDS is a fine-grained detection device, through which the live network can be monitored more accurately.
Answer: A,B,C
NEW QUESTION # 54
Huawei Firewall only supports the inter-domain persistent connection function for TCP packets.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 55
Please order the following steps in the PKI life cycle correctly, 1. Issued, 2. storage, 3. Update, 4. verify[fill in the blank]*
- A. 0
- B. 1
Answer: A
NEW QUESTION # 56
As shown in the figure, the administrator needs to test the network quality of the 20.0.0/24 CIDR block to the 40.0.0/24 CIDR block on Device B, and the device needs to send large packets for a long time to test the network connectivity and stability.
- A. ping -s 20.0.0.1 -h 500-f 9600 40.0.0.2
- B. tracert -a 20.0.0.1 -c 500 -w 9600 40.0.0.2
- C. ping -a 20.0.0.1 -c 500 -s 9600 40.0.0.2
- D. tracert -a 20.0.0.1 -f 500 -q 9600 40.0.0.2
Answer: C
NEW QUESTION # 57
Which of the following types of malicious code on your computer includes?
- A. Trojan horses
- B. Port SQL injection
- C. Oral spyware
- D. Oral virus
Answer: A,B,C,D
NEW QUESTION # 58
Digital envelope technology means that the sender uses the receiver's public key to encrypt the data, and then sends the ciphertext to the receiver ( )[Multiple choice]*
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 59
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