Which of the following is wrong about engineer A's understanding of LVS load balancing technology?

• A.The advantage of LVS/DR is that the server can run any operating system that supports TCP/IP, it only needs an IP address to be configured on the scheduler, and the server group can use private IP addresses.
• B.In the LVS/DR mode, the scheduler dynamically selects a server according to the load conditions of each server without modifying or encapsulating IP packets, but changing the MAC address of the data frame to the MAC address of the selected server.
• C.In the LVS/DR mode, Director and RealServer must physically have a network card connected through an uninterrupted LAN.
• D.LVS/NAT is the simplest way, so RealServer only needs to point its own gateway to Director, and Director can also be a RealServer

Comment: *

Name: *

Email: *

Verification: *

Heterogeneous computing is a new computing model following single-core computing and multi-core parallel computing. Which of the following descriptions of heterogeneous computing is wrong?

• A.Common heterogeneous system architectures are: CPU+GPU, GPU+FPGA, CPU+ special chip
• B.Currently popular heterogeneous programming frameworks in the industry are: OpenCL, CUDA, C++AMP
• C.Common computing unit categories include CPU, GPU, DSP, ASC, FPGA, etc.
• D.Moore's Law is blocked, and the surge in data is the cause of heterogeneous computing.

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements about HPC high-performance computing is wrong?

• A.HPC computing cluster is mainly composed of computing servers, shared storage, high-speed interconnection equipment and supporting management software, platform software and application software.
• B.HPC stands for high-performance computing, which refers to a single computer system that uses many processors or a computer system and environment that uses multiple computer clusters for computing purposes.
• C.Early HPC was based on custom computers, dedicated to specific fields such as basic scientific research and national defense strategy. With the development of technology, most HPCs are now based on clusters of X86 servers.
• D.HPC is a supercomputer, which uses computers to research, design products and support complex decisions.

Comment: *

Name: *

Email: *

Verification: *

Internet company A purchased a batch of servers to expand the existing distributed storage Ceph. Through which of the following interface, the Ceph upper storage service can call the underlying RADOS?

• A.Librados
• B.RBD
• C.RADOSGW D CephFS

Comment: *

Name: *

Email: *

Verification: *

Which of the following is not part of the CPU processor?

• A.Control unit
• B.Logic Operation Unit
• C.Register
• D.Process

Comment: *

Name: *

Email: *

Verification: *