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Huawei HCIA-Security V4.0 Sample Questions:

1. What is correct about the following description of device management in the operating system?

A) The main task of port device management is to complete the I/O requests made by users and classify I
/O devices for users.
B) Whenever a process makes an I/O request to the system, as long as it is secure, the device allocator will assign the device to the process according to a certain policy.
C) In order to alleviate the problem of speed mismatch between CPU and I/O devices and improve the parallelism of CPU and I/O devices, in modern operating systems, almost all I/O devices are exchanging numbers with processors Buffers are used at all times.
D) Device management can virtualize a physical device into multiple logical devices through virtualization technology, providing multiple user processes to use.

2. For which of the following parameters can the packet filtering firewall filter?

A) The MAC address of the source destination
B) Port packet payload
C) Port number and protocol number of the port source
D) IP address of the port source destination

3. Which of the following types of packets cannot be filtered by a packet filtering firewall?

A) Initial fragments
B) Forged ICMP error packets
C) Non-fragmented packets
D) Non-initial fragments

4. Match each of the following application layer service protocols with the correct transport layer protocols and port numbers.

5. Which of the following operating modes does NTP support?

A) Mouth broadcast mode
B) Mouth client/server mode
C) Mouth peer mode
D) Mouth multicast mode

Solutions: