Question 61- 90
Q61) Which of the following are true about the function of Libvirt in Kernel-based Virtual Machine (KVM)? (Multiple answers)
- a) Libvirt is one of the KVM management tools.
- b) The Libvirt APls can be called to operate KVM VMs in multiple programming languages.
- c) Libvirt is customized for KVM.
- d) Libvirt is an indispensable part of the KVM architecture.
Correct Answer: A, B
Q62) Which of the following are true about Virtio? (Multiple answers)
- a) Virtio is an I/O paravirtualization solution.
- b) Virtio is an I/O full virtualization solution.
- c) Virtio improves I/O forwarding efficiency.
- d) After Virtio is used, OEMU is not required.
Correct Answer: A, C
Q63) If KVM uses Virtio, which of the following are true about the I/O forwarding process? (Multiple answers)
- a) The I/O requests need to be forwarded by the KVM module.
- b) The I/O requests are directly sent by the frontend driver to the backend driver.
- c) The forwarding efficiency of I/O requests increases.
- d) The I/O requests are not forwarded through OEMU.
Correct Answer: A, C
Q64) With Virtio, the NIC transmission rate of a Windows VM is 10 Gbit/s.
- a) True
- b) False
Correct Answer: A
Q65) A user applies for an EVS disk on HUAWEI CLOUD. This service mode is ( ).
- a) laaS
- b) PaaS
- c) Saas
- d) DaaS
Correct Answer: A
Q66) Which of the following is true about distributed storage?
- a) Disks of distributed storage are from x86 disk arrays.
- b) Disks of distributed storage are from x86 VMs.
- c) Disks of distributed storage are from x86 servers.
- d) Disks of distributed storage are from PCs.
Correct Answer: C
Q67) In Huawei FusionCompute, Fusion Storage can be used as a virtualized storage device.
- a) True
- b) False
Correct Answer: B
Q68) In Huawei FusionCompute, which of the following is false about the uplink links?
- a) The uplink is between the DVS and physical NIC of the host. One host has only one uplink.
- b) An uplink can correspond to one physical network port or the logical port that binds multiple physical network ports.
- c) Multiple DVSs cannot share an uplink.
- d) A host can have multiple uplinks connected to different DVSs.
Correct Answer: A
Q69) In Huawei FusionCompute, which of the following is false about port groups and security groups?
- a) One DVS can have multiple port groups. One VM can be protected by multiple security groups
- b) Security groups protect VMs based on port groups.
- c) A port group is an aggregation of virtual ports on a DVS. A security group is a set of rules.
- d) A VM NIC is connected to a virtual port in a port group. A VM NIC is associated with a security group.
Correct Answer: B
Q70) Which of the following is false about iSCSI and Fiber Channel?
- a) At the transmission layer, fiber channel transmission uses the Fiber Channel (FC) protocol and iSCSI uses the TCP/IP protocol.
- b) iSCSI runs on the Ethernet based on the TCP/IP protocol and can be seamlessly integrated with the existing Ethernet.
- c) The Fiber Channel (FC) protocol is completely heterogeneous with the existing Ethernet and the compatibility is poor.
- d) The transmission distance of FC is longer than that of the TCP/IP.
Correct Answer: D
Q71) The service mode shown in this picture is ( )?
- a) laaS
- b) PaaS
- c) SaaS
- d) DaaS
Correct Answer: A
Q72) In Huawei FusionCompute, which of the following storage virtualization features are supported?
- a) Thin provisioning
- b) Storage live migration
- c) Snapshot
- d) Disk capacity expansion
Correct Answer: A, B, C, D
Q73) Which of the following VM disk file formats is not supported by Huawei FusionCompute?
- a) VMDK
- b) QCOW2
- c) RAW
- d) VHD
Correct Answer: A
Q74) SATA disks use parallel Single ports and SAS disks use serial ports
- a) True
- b) False
Correct Answer: B
Q75) Which of the following is recommended for the archive room where a large amount of data needs to be stored for a long time and does not need to be read frequently?
- a) SSD disk
- b) SAS disk
- c) SATA disk
- d) NL-SAS disk
Correct Answer: C
Q76) SSDs are mechanical hard disks, featuring fast read/write speed, low power consumption, and light weight. However, SSDs have limited service life.
- a) True
- b) False
Correct Answer: B
Q77) Which of the following are true about RAID?
- a) A RAID group can be regarded as storage space consisting of two or more disks. The available capacity of a RAID group is the sum of the capacity of disks in the group.
- b) RAID improves the I/O. The performance of a storage system by concurrently reading and writing data on multiple disks.
- c) When a disk is damaged, other disks in RAID 5 can still work properly, and the disk I/O performance is not affected.
- d) Compared with RAID 5, RAID 6 has stronger data recovery capability, but weaker read/write capability of disks.
Correct Answer: B, D
Q78) In RAID 5 and RAID 6, the number of faulty disks that can be tolerated is ( ), respectively.
- a) 1, 2
- b) 2, 3
- c) 2, 1
- d) 3, 2
Correct Answer: A
Q79) After the disks in an array form a RAID group, the server connected to the disk array cannot directly access the RAID group. Therefore, you need to divide the disk array into logical LUNs before allocating them to the server.
- a) True
- b) False
Correct Answer: A
Q80) Based on RAID 5, RAID 6 enhances the fault tolerance capability of disks and allows two disks to be faulty at the same time. The minimum number of disks in a RAID 6 group is 4.
- a) True
- b) False
Correct Answer: A
Q81) The universal storage space unit mapped to the host in the disk array is ( ), which is the logical space created based on RAID.
- a) Storage pool
- b) Volume
- c) LUN
- d) Partition
Correct Answer: C
Q82) RAID 1 can replace data backup. Data mirroring is used to improve the fault tolerance of disk arrays. The data recovery cost is the smallest among all.
- a) True
- b) False
Correct Answer: B
Q83) Which of the following RAID levels has the highest disk space usage?
- a) RAID 0
- b) RAID 1
- c) RAID 5
- d) RAID 6
Correct Answer: A
Q84) Which of the following RAID levels has the weakest data redundancy capability?
- a) RAID 0
- b) RAID 1
- c) RAID 5
- d) RAID 6
Correct Answer: A
Q85) Common categories of disk arrays include ( ).
- a) RAID
- b) JBOD (Just a Bunch of Disks)
- c) SBOD (Switched Bunches of Disks)
- d) MAID (Massive Arrays of Idle Disks)
Correct Answer: A, B, C
Q86) The common external storage solutions include ( ).
- a) DAS
- b) SAN
- c) NAS
- d) NFS
Correct Answer: A, B, C
Q87) Compared with SAN, which of the following is not an advantage of NAS?
- a) The file system of NAS supports a single file with higher specifications.
- b) NAS supports more files.
- c) Block data transmission is optimized.
- d) File sharing is optimized.
Correct Answer: C
Q88) NAS has its own file system. After accessing NAS through the network sharing protocol, the application server can read and write the files in the file system.
- a) True
- b) False
Correct Answer: B
Q89) When configuring IP SAN for a host, you need to configure ( ) for the host on the storage device to map the host to the IP SAN.
- a) iSCSI Server
- b) iSCSI Client
- c) iSCSI Initiator
- d) iSCSI Target
Correct Answer: C
Q90) Compared with FC SAN, which of the following is not an advantage of IP SAN?
- a) Low construction cost
- b) Long transmission distance
- c) High transmission efficiency
- d) Convenient bandwidth expansion
Correct Answer: C