Ensurepass

QUESTION 21

When using the user mode network stack with qemu, TCP and UDP connections work fine but ping does not work. Why is this?

A. The Qemu user mode network stack does not implement ICMP.

B. The problem is caused by incorrect routing.

C. The Qemu user mode network stack blocks all ICMP traffic.

D. The Qemu user mode network stack requires explicit permission for ping to work.


Answer:
A


QUESTION
22

When using Xen, each VM will have a configuration file matching the name of the VM. Where are these configuration files stored?

A. Each configuration file is stored with the VM disk files.

B. In the directory /etc/xen

C. On a LDAP, NIS or DHCP server

D. In the directory /var/lib/xen


Answer:
B


QUESTION
23 CORRECT TEXT

In order to specify that a Xen virtual machine should start at boot time, under which directory must the VM’s configuration file (or a link to it) be placed? (Please specify the directory name with or without the full default path) Your Response


Answer:
/etc/xen/auto auto


QUESTION
24

With HAProxy, which one of the following ACLs can match requests made to the domain example.org?

A. acl acl_example hdr_sub(Host) example.org

B. acl acl_example url_domain example.org

C. acl acl_example hdr_sub(Domain) example.org

D. acl acl_example url_host example.org


Answer:
A


QUESTION
25

Why is quorum used in a Red Hat Cluster Suite installation?

A. To keep track of membership among nodes

B. To prevent splitbrain conditions

C. To establish communication protocols

D. To detect configuration conflicts


Answer:
B


QUESTION
26

Which one of the following should NOT be used as a lowlevel device for DRBD?

A. A LVM logical volume

B. A physical hard disk

C. A EVMS volume

D. A loop device


Answer:
D


QUESTION
27

In heartbeat (versions 3 and post 2.1), what should the crm directive be set to?

A. on

B. no

C. respawn

D. pacemaker

E. off


Answer:
C


QUESTION
28

What action does the virsh save command perform?

A. It stops a VM and saves the data from memory to a file.

B. It saves the a running domain configuration to file.

C. It saves a copy of a running VM.

D. It rescues a VM from being fenced.


Answer:
A


QUESTION
29

An administrator needs to shutdown a Xen virtual machine immediately, otherwise, the virtual machine risks corrupting the file system. Which of the following methods could be used for an immediate shutdown?

A. Use xm shutdown <vmname> force

B. Use xm destroy <vmname>

C. Use xm poweroff <vmname>

D. Shut down the xend process

E. Use xm stop <vmname>


Answer:
B


QUESTION
30

Which memory management subsystem does KVM use?

A. QEMM

B. Xen’s memory management module

C. KVMMM

D. The default memory management of the Host OS kernel


Answer:
D

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