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Resource Management Study questions
http://www.vmware.com/pdf/vsphere4/r40/vsp_40_resource_mgmt.pdf
1.) Resource pools can be used to set reservations of what resources?
a.) CPU and storage
b.) CPU and memory
c.) CPU and network
d.) CPU and I/O
2.) If a virtual machine has twice as many shares of a resource as another virtual machine, it is entitled to consume twice as much of that resource when these two virtual machines are competing for resources. (True or False)
a.) True
b.) False
3.) Shares associated with resource pools are given in?
a.) High, medium and low
b.) Normal, average and small
c.) High, normal and low
d.) Triple, double and single
4.) High shares get how many resources?
a.) 2000
b.) 1000
c.) 500
d.) 100
5.) Normal shares get how many resources?
a.) 2000
b.) 1000
c.) 500
d.) 100
6.) Low shares get how many resources?
a.) 2000
b.) 1000
c.) 500
d.) 100
7.) Eight single CPU machines runs on a host with 8GHz if CPU capacity shares are set to normal how much CPU does each machine get?
a.) 8GHz
b.) 4GHz
c.) 2GHz
d.) 1GHz
8.) Two CPU-bound virtual machines run on a host with 8GHz of aggregate CPU capacity. Their CPU shares are set to Normal and get 4GHz each. A third CPU-bound virtual machine is powered on. Its CPU shares value is set to High, which means it should have twice as many shares as the machines set to Normal. The new virtual machine receives 4GHz and the two other machines get only 2GHz each. The same result occurs if the user specifies a custom share value of 2000 for the third virtual machine.
a.) High gets 6GHz Normal each get 1GHz
b.) High gets 4Ghz Normal each get 2GHz
c.) High gets 3GHz and Normal each get 2.5GHz
d.) High gets 2GHz and Normal each get 2GHz
9.) Resource Allocation limit specifies an upper bound for ________resources that can be allocated to a virtual machine.
a.) CPU or network
b.) CPU or disk
c.) CPU or memory
d.) CPU or I/O
10.) A resource memory reservation is a?
a.) Guaranteed memory allocation for this virtual machine.
b.) Upper limit for this virtual machine’s memory allocation.
c.) Memory shares for this virtual machine.
d.) User-specified guest physical memory size.
11.) A resource memory limit is a?
a.) Guaranteed memory allocation for this virtual machine.
b.) Upper limit for this virtual machine’s memory allocation.
c.) Memory shares for this virtual machine.
d.) User-specified guest physical memory size.
12.) A resource memory share is a?
a.) Guaranteed memory allocation for this virtual machine.
b.) Upper limit for this virtual machine’s memory allocation.
c.) Memory shares for this virtual machine.
d.) User-specified guest physical memory size.
13.) A configured memory resource is a?
a.) Guaranteed memory allocation for this virtual machine.
b.) Upper limit for this virtual machine’s memory allocation.
c.) Memory shares for this virtual machine.
d.) User-specified guest physical memory size.
14.) If DPM is enabled and some of you hosts are standby mode do the resource reservations available change. (Yes/No)
a.) Yes
b.) No (note: The unreserved resources provided by these hosts are considered available for admission control.
15.) When CPU resources are overcommitted, the ESX/ESXi host _________ the physical processors across all virtual machines so each virtual machine runs as if it has its specified number of virtual processors.
a.) Shares equally
b.) cycles
c.) time-slices
d.) over commits
16.) It is not possible to vMotion between an AMD and Intel processor? (True/False)
a.) True
b.) False
17.) An application is _________ if it spends most of its time executing instructions rather than waiting for external events such as user interaction, device input, or data retrieval.
a.) I/O wait state
b.) Memory bound
c.) CPU bound
d.) Time sliced
18.) ESX/ESXi supports up to ________ virtual processors (CPUs) for each virtual machine.
a.) 1
b.) 2
c.) 4
d.) 8
19.) Deploying single threaded application on dual processors speeds up the application? (True/False)
a.) True
b.) False
20.) In hyperthreaded systems, each hardware thread is a logical processor so how many logical processors does a dual-core processor have?
a.) Dual core and 2 logical processors
b.) Dual core and 4 logical processors
c.) Dual core and 8 logical processors
d.) Quad core and 2 logical processors
21.) In __________ systems, the ESX CPU scheduler spreads load across all sockets by default.
a.) Over committed
b.) Under committed
c.) Loaded
d.) Clustered
22.) CPU affinity specifies virtual machine-to-processor placement constraints and is different from the affinity based on DRS rules, which specifies virtual machine-to-virtual machine host placement constraints. (True/False)
a.) True
b.) False
23.) ESX/ESXi uses at least __MB of system memory for the VMkernel
a.) 50MB
b.) 100MB
c.) 272MB
d.) 800MB
24.) ESX, the service console typically uses ___MB
a.) 50MB
b.) 100MB
c.) 272MB
d.) 800MB
25.) ESX/ESXi systems use a memory balloon driver called _________, that is loaded into the guest operating system running in a virtual machine.
a.) Shared memory
b.) Vmmemctl
c.) Swap
d.) Memory reclaim
26.) By default, the swap file is created in the _____
a.) Swap folder
b.) Same location as the virtual machine's configuration file.
c.) Swap datastore
d.) virtual machines configuration file
27.) A resource pool can contain _____________.
a.) Virtual machines
b.) Child resource pools
c.) Hosts
d.) Child resource pools, virtual machines, or both
28.) You can delegate resources within a resource pool? (True/False)
a.) True
b.) False
29.) The system considers the resources available in the selected resource pool and its direct parent resource pool. If the parent resource pool also has the __________Reservation option selected, it can borrow resources from its parent resource pool.
a.) Fixed
b.) Expandable
c.) Limited
d.) Balloon
30.) Each time you reconfigure a resource pool or power on a virtual machine, the system validates all parameters so all service level guarantees can still be met. (True/False)
a.) True
b.) False
31.) The distribution and usage of CPU and memory resources for all hosts and virtual machines in the cluster are continuously monitored.
a.) Power management
b.) Load balancing
c.) DRS Rules
d.) Resource Pool
32.) When the VMware Distributed Power Management feature is enabled, DRS compares cluster- and host-level capacity to the demands of the cluster’s virtual machines, including recent historical demand.
a.) Power management
b.) Load balancing
c.) DRS rules
d.) Resource pools
33.) You can control the placement of virtual machines on hosts within a cluster.
a.) Power management
b.) Load balancing
c.) DRS rules
d.) Resource pools
34.) When you attempt to power on a single virtual machine or a group of virtual machines in a DRS-enabled cluster, vCenter Server performs___________.
a.) Prerequisite actions
b.) Virtual machine power on
c.) admission control
d.) placement recommendation
35.) When a cluster becomes unbalanced, ______makes recommendations or migrates virtual machines, depending on the default automation level.
a.) DPM
b.) DRS
c.) Resource pool
d.) HA
36.) If the cluster or any of the virtual machines involved are ______________, vCenter Server does not take automatic actions to balance resources.
a.) Manual
b.) Partially automated
c.) manual or partially automated
d.) Automatic
37.) DRS has ___ setting for configuration?
a.) 5
b.) 10
c.) 20
d.) 25
38.) DRS configuration settings range from?
a.) Slow to fast
b.) Low to high
c.) Conservative to aggressive
d.) Affinity or anti-affinity
39.) A DRS cluster requires which of the following?
a.) Shared storage
b.) Compatible processors
c.) EVC
d.) A & B
40.) An affinity rule specifies that two or more virtual machines be _____________?
a.) Placed on separate hosts
b.) Placed on the same host
c.) Have a guaranteed CPU core
d.) Have reserved memory
41.) An anti-affinity rule specifies that two or more virtual machines be _____________?
a.) Placed on separate hosts
b.) Placed on the same host
c.) Have a guaranteed CPU core
d.) Have reserved memory
42.) If two DRS rules conflict, the ______will take precedence.
a.) Older one
b.) Newer one
c.) Last one
d.) Second one
43.) Disabled DRS rules are ignored?
a.) True
b.) False
44.) DRS gives higher precedence to preventing violations of anti-affinity rules than violations of affinity rules.
a.) True
b.) False
45.) DRS rules that are in violations show up in the DRS tab as faults?
a.) True
b.) False
46.) DRS affinity rules are the same as the guest’s affinity rule?
a.) True
b.) False
47.) Before removing a host from a cluster you should place it in maintenance mode?
a.) True
b.) False
48.) When a host machine is placed in standby mode, it is powered off.
a.) True
b.) False
49.) A DRS cluster is what color if it is overcommitted?
a.) Green
b.) Yellow
c.) Orange
d.) Red
50.) An invalid DRS cluster is what color?
a.) Green
b.) Yellow
c.) Orange
d.) Red
51.) A fixed, guaranteed allocation for the resource pool input by the user.
a.) Unreserved
b.) Reserved
c.) Expandable resource pool
d.) Reservation used
52.) The sum of the reservation or reservation used (whichever is larger) for each child resource pool, added recursively.
a.) Unreserved
b.) Reserved
c.) Expandable resource pool
d.) Reservation used
53.) This nonnegative number differs according to resource pool type.
a.) Unreserved
b.) Reserved
c.) Expandable resource pool
d.) Reservation used
54.) Reservation minus reservation used plus any unreserved resources that can be borrowed from its ancestor resource pools.
a.) Unreserved
b.) Reserved
c.) Expandable resource pool
d.) Reservation used
Recommend reading the section on calculating the resources for a valid, overcommitted and invalid DRS cluster as well as understand the impact.
55.) If you disconnect a host while it is in standby mode vCenter will be able to power it back on?
a.) True
b.) False
56.) In order to test wake on LAN you must have at least __ number of hosts.
a.) 1
b.) 2
c.) 3
d.) 4
57.) DPM has automation levels and they are?
a.) On, manual and automatic
b.) Off, manual and automatic
c.) On, automatic and standby
d.) On, off and automatic
58.) How many priority levels are there for DPM?
a.) 3
b.) 5
c.) 7
d.) 9
59.) In a DPM configuration host overrides have the following configurations?
a.) On, manual and automatic
b.) Off, manual and automatic
c.) Disabled, manual and automatic
d.) On, off and automatic
60.) After enabling and running VMware DPM, you can verify that it is functioning properly by viewing ________________________.
a.) each host’s Successfully entered Standby mode
b.) each host’s Entering Standby mode
c.) each host’s Successfully exited Standby mode
d.) each host’s Last Time Exited Standby
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