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Q41. CORRECT TEXT In order to determine if a virtualization host offers Intel VT-x support, which CPU flag must be searched for in the file /proc/cpuinfo? (Specify the name of the CPU flag as it is mentioned in the given file only without any additional information.)
Answer:
vmx, VMX
Q42. Which of the following describes a split brain situation in a high availability cluster?
A. Several cluster nodes access a shared resource without coordination.
B. Several cluster nodes run different instances of the same services.
C. Incoming network connections are accidentally forwarded to more than one backend server.
D. Instead of shared storage, each node uses local storage managed by itself and replicates with other nodes.
E. In addition to shared storage, each node has local storage that is not shared with other nodes.
Answer: A
Q43. Which of the following can be used as a low level device for DRBD? (Choose TWO correct answers.)
A. A LVM logical volume
B. A physical hard disk
C. A rewritable CD
D. A virtual tape library
E. A tape streamer
Answer: A, B
Q44. CORRECT TEXT Which command in the KVM monitor restores a snapshot? (Specify ONLY the command without any path or parameters.)
Answer:
loadvm
Q45. Which of the following statements are true regarding resource management for full virtualization? (Choose TWO correct answers.)
A. The hypervisor may provide fine-grained limits to internal elements of the guest operating system such as the number of processes.
B. Full virtualization cannot pose any limits to virtual machines and always assigns the host system's resources in a first-come-first-serve manner.
C. It is up to the virtual machine to use its assigned hardware resources and create, for example, an arbitrary amount of network sockets.
D. The hypervisor provides each virtual machine with hardware of a defined capacity that limits the resources of the virtual machine.
E. All processes created within the virtual machines are transparently and equally scheduled in the host system for CPU and I/O usage.
Answer: C, D
Q46. Which of the following are tools or services that manage a Linux Virtual Server (LVS) setup? (Choose TWO correct answers.)
A. keepalived
B. ldirectord
C. lvproxy
D. roundrobind
E. vserverd
Answer: A, B
Q47. CORRECT TEXT Which subcommand of virsh opens the XML configuration of a virtual network in an editor in order to make changes to that configuration? (Specify ONLY the subcommand without any parameters.)
Answer:
virsh net-edit, net-edit
Q48. Which file format is used by libvirt to store configuration data?
A. INI-style text files
B. Text files containing key/value pairs
C. Java-like .properties files
D. XML files
E. SQLite databases
Answer: D