What parameter must be set in the main Xen configuration file to allow migration of live virtual machines between servers?
A. xendunixserver
B. xendmigrationserver
C. xendhttpserver
D. xendrelocationserver
In order to use HAProxy to balance incoming connections to a pool of email servers, which one of the following modes should be used?
A. mode tcp
B. mode mailproxy
C. mode smtp
D. mode email
What is the main technical advantage that will be available on a server after installing virtualization technologies such as Xen or KVM?
A. The execution time of processes which use the CPU intensively will be reduced.
B. The computing power of the server will be increased.
C. The number of running kernel instances will be limited to one.
D. It will be possible to share physical resources between insulated execution environments.
E. It will be possible to create virtual networks.
A server with Xen installed has hardware and software requirements for full virtualization. What commands can tell you about the availability of full virtualization on the server? (Select TWO correct answers)
A. dmesg |grep i intel|grep i vt; dmesg |grep i amd|grep i v
B. egrep '(vmx|svm)' /proc/cpuinfo
C. xm dmesg | grep i hvm
D. grep i "Full Virtualization" /proc/xen
E. grep i "Full Virtualization" /etc/xen/*
What action does the virsh restore command perform?
A. It reestablishes a VM's connections to shared resources.
B. It restarts a VM from a state file.
C. It rescues a VM from being fenced.
D. It reactivates a suspended VM.
Which of the following are valid load balancing algorithms for HAProxy? (Select TWO correct answers)
A. persistent
B. weightedrr
C. source
D. leastconn
E. destination
Which statements are true about container based virtualization? (Select TWO correct answers)
A. As many VMs may run as system resources permit but only Linux supports container based virtualization.
B. As many OS versions may be used as system resources permit.
C. Only the same OS as the host system can be used.
D. The VMs must use the same kernel as the host system.
E. This allows running of Windows containers on a Linux host.
Which solution is needed to make several servers in a network appear as one server?
A. pacemaker
B. heartbeat
C. drbd
D. lvs
E. clvm
Which one of the following is NOT a required element in setting up GFS in a Red Hat Cluster environment?
A. CLVM
B. DLM
C. CMAN
D. GFS
E. CCS
With Red Hat Cluster Suite, which one of the following is NOT a valid resource to be used by high availability services?
A. Authentication
B. IP Addresses
C. NFS Mounts and Exports
D. File Systems
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