Cloud chap 4
1. Which of the following correctly describes the following figure ? Determine the characteristics->Measure the workload->Load the system->Predict the future->Deploy resource a) Capacity Planning b) Performance Planning c) Network Planning d) None of the mentioned
a
1. Which of the following is another name for resources mentioned in the following figure ? CPU-RAM-?-Disk-Network a) System Metrics b) System Baseline c) System Parameters d) All of the mentioned
a
5. Point out the wrong statement : a) In practice, there is less performance variability in cloud machine instances b) Capacity planning seeks to compare the capability of one system against another system c) Capacity planning provides the service with the best operational parameters at the lowest cost d) All of the mentioned
a
A _______ image makes a copy or a clone of the entire computer system inside a single container such as a file. a) system b) software c) hardware d) none of the mentioned
a
An operating system running on a Type __ VM is a full virtualization. a) 1 b) 2 c) 3 d) All of the mentioned
a
EC2 Compute Unit is the equivalent of a _____ GHz 2007 Opteron or 2007 Xeon processor. a) 1 b) 2 c) 4 d) All of the mentioned
a
Point out the correct statement : a) For a cloud-based virtual computer, the network interface may be a highly variable resource b) Increasing the variability between servers makes it easier to troubleshoot problems and simpler to deploy and configure new systems c) A server with the different set of software, system configuration, and hardware should perform similarly if given the same role in an infrastructure d) All of the mentioned
a
Point out the correct statement : a) Virtual appliances are a relatively new paradigm for application deployment b) External network virtualization cannot be done using network switches and VLAN software c) All imaging programs can take snapshots of systems d) All of the mentioned
a
Point out the wrong statement : a) Full virtualization requires that the host operating system provide a virtual machine interface for the guest operating system and that the guest access hardware through that host VM b) Guest operating systems in full virtualization systems are generally faster than other virtualization schemes c) A process virtual machine instantiates when a command begins a process d) All of the mentioned
a
Point out the wrong statement : a) Network capacity is one of the easiest factors to determine b) A system uses resources to satisfy cloud computing demands that include processor, memory, storage, and network capacity c) Scaling a system can be done by scaling up vertically to more powerful systems d) All of the mentioned
a
Scaling _____ indefinitely leads you to an architecture with a large number of servers. a) out b) in c) vertically d) all of the mentioned
a
Simple Cloud API is useful for applications written in : a) PHP b) Python c) Scala d) None of the mentioned
a
Which of the following allows a virtual machine to run on two or more physical processors at the same time ? a) Virtual SMP b) Distributed Resource Scheduler c) vNetwork Distributed Switch d) Storage VMotion
a
Which of the following application can replay requests to Web servers ? a) HTTPerf b) Perfmon c) Autobench d) None of the mentioned
a
Which of the following application delivery platform's main focus is on desktop installations? a) Microsoft App-V b) Microsoft Hyper c) Amazon EC2 d) All of the mentioned
a
Which of the following correctly represents different types of mobile patterns ? a. D2D-P2P-Mobility-C2D-V2V b. D2P-P2C-Mobility-C2D-V2V c. D2P-P2C-Mobility-C2D-V2C d. All of the mentioned
a
Which of the following graph correctly describes relative costs and efficiencies of different physical and virtual servers ? a. Small Instance-> Dual Instance-> Quad Core b. Dual Instance->Small Instance->Quad Core c. Dual Instance->Small Instance->Large Instance d. None of the mentined
a
Which of the following instance has 68.4GB of memory and 26 EC2 Compute Units ? a) High-Memory Quadruple Extra Large Instance b) Small Instance c) Micro Instance d) High-CPU Extra Large Instance
a
Which of the following is a more sophisticated load balancer ? a) workload managers b) workspace managers c) rackserve managers d) all of the mentioned
a
Which of the following is a potent cloud-building technology? a) vSphere b) HyperCube c) vCube d) All of the mentioned
a
Which of the following is another name for system virtual machine ? a) hardware virtual machine b) software virtual machine c) real machine d) None of the mentioned
a
Which of the following is often a bottleneck in Web servers ? a) Network I/O b) RAM c) Disk d) None of the mentioned
a
Which of the following is open standard for storing a system image ? a) OVF b) PPF c) VOF d) Compliance
a
Which of the following is the most widely used technique for abstraction? a) Load balancing b) Load scheduling c) Load scaling d) All of the mentioned
a
Which of the following provide system resource access to virtual machines ? a) VMM b) VMC c) VNM d) All of the mentioned
a
Which of the following resource has following graph structure for web servers ? a) CPU b) RAM c) Disk d) None of the mentioned
a
Which of the following should be placed in second lowermost layer for the following figure ? GuestOS GuestOS Hypervisor ? System Hardware a) Host Operating System b) Software c) VM d) None of the mentioned
a
Which of the following testing seeks to answer maximum load that my current system can support ? a) Load b) Security c) Navigation d) All of the mentioned
a
Which of the following tool is used for Web site monitoring service in LAMP ? a) Alertra b) Cacti c) Collectd d) None of the mentioned
a
Which of the following type is missing in the following figure ? Small-Micro-AMI-HighCPU-? a) High-CPU b) High-Disk c) High-ROM d) All of the mentioned
a
Which of the following type of virtualization is found in hypervisor such as Microsoft's Hyper-V ? a) paravirtualization b) full virtualization c) emulation d) none of the mentioned
a
Which of the following utility is used to monitor traffic in Windows ? a) Microsoft Network Monitor b) Microsoft Performance Monitor c) Microsoft Perfmon d) None of the mentioned
a
Which of the following visualization is most commonly achieved through a mapping mechanism where a logical storage address is translated into a physical storage address ? a) Storage b) Network c) Software d) None of the mentioned
a
Which type of Hypervisor is shown in the following figure ? Guest OS Guest OS Hypervisor System Hardware a) Type 1 b) Type 2 c) Type 3 d) All of the mentioned
a
_______ creates a container that encapsulates the application and all the application's dependencies within a set of files. a) VAA b) VAS c) VSA d) None of the mentioned
a
_________ is used by Amazon Web Services to store copies of a virtual machine. a) AMI b) EMI c) IMI d) Application services
a
10. Which of the following should be replaced with the question mark in the following figure ? Scalable-Service-?-Shared-Metered Usage a) Abstraction b) Virtualization c) Mobility Pattern d) All of the mentioned
b
In a ____________ scheme, the VM is installed as a Type 1 Hypervisor directly onto the hardware. a) paravirtualization b) full virtualization c) emulation d) none of the mentioned
b
Point out the correct statement : a) Most load balancers allow you to weight the requests going to a specific server with the goal of serving more requests to less powerful systems and fewer requests to more powerful systems b) Most load balancers allow you to weight the requests going to a specific server with the goal of serving more requests to more powerful systems and fewer requests to less powerful systems c) Most load balancers allow you to weight the requests going to a specific server with the goal of serving fewer requests to more powerful systems and more requests to less powerful systems d) All of the mentioned
b
Point out the wrong statement : a) A part of the DRS called the distributed power management (DPM) module can manage the power consumption of systems b) DMS monitors network connections, provides firewall services, and enables the use of third-party switches c) Physical computers can be standalone hosts or a set of clustered systems d) All of the mentioned
b
Point out the wrong statement : a) A virtual network can create virtual network interfaces b) Instantiating a virtual machine is a very slow process c) You can make machine images of systems in the configuration that you want to deploy or take snapshots of working virtual machines d) All of the mentioned
b
Point out the wrong statement : a) Cloud computing applications have the ability to run on virtual systems b) Systems (VMs running applications), storage, and network assets cannot be virtualized c) Applications that run in data centers are captive to the operating systems and hardware platforms that they run on d) All of the mentioned
b
Point out the wrong statement : a) Some hypervisors are installed over an operating system and are referred to as Type 2 or hosted VM b) All CPUs support virtual machines c) On a Type 2 VM, a software interface is created that emulates the devices with which a system would normally interact d) All of the mentioned
b
Point out the wrong statement : a) The total workload might be served by a single server instance in the cloud b) Performance logs are the only source of performance measurements c) The amount of resources to be deployed depends upon the characterization of the Web servers involved, their potential utilization rates, and other factors d) All of the mentioned
b
The __________ solution creates a virtual application appliance as an architectural layer between the Windows or the UNIX operating system and applications. a) AppOne b) AppZero c) AppSoft d) None of the mentioned
b
What does L in LAMP stands for ? a) Lamp b) Linux c) Lone d) None of the mentioned
b
What does WnsP represents in the following formula ? WT = Σ(WSnP WSnV) a) workload of the virtual servers b) workload of your physical server c) sum over all the Web servers d) all of the mentioned
b
What is the relation of capacity attribute to performance ? a) same b) different c) similar d) None of the mentioned
b
Which of the following cloud computing infrastructures automatically manage your capacity ? a) High-Memory Quadruple Extra Large Instance b) Small Instance c) High-CPU Extra Large Instance d) All of the mentioned
b
Which of the following instance has lowest performance in AMI ? a) Auto Bench b) Auto Scaling c) Auto Performance d) All of the mentioned
b
Which of the following instance is used by default in AMI ? a) High-Memory Quadruple Extra Large Instance b) Small Instance c) Micro Instance d) High-CPU Extra Large Instance
b
Which of the following is available as both open source and commercial version ? a) Zabbix b) ZenOSS c) SiteUpTime d) All of the mentioned
b
Which of the following is critical step in capacity planning ? a) Predict the future based on historical trends and other factors b) Load the system until it is overloaded c) Deploy or tear down resources to meet your predictions d) All of the mentioned
b
Which of the following is hardest factor to determine ? a) Network performance b) Network capacity c) Network delay d) All of the mentioned
b
Which of the following is not a commercial third-party Web site performance monitor ? a) Keynote b) Munin c) Gomez d) All of the mentioned
b
Which of the following is used as substitute for PHP as scripting language in LAMP ? a) Scala b) Perl c) Ruby d) None of the mentioned
b
Which of the following is used to evaluate your own cloud application's network performance ? a) Path Cloud b) PathView Cloud c) View Cloud d) All of the mentioned
b
Which of the following operating system support operating system virtualization ? a) Windows NT b) Sun Solaris c) Windows XP d) Compliance
b
Which of the following packet sniffer was formerly called Ethereal ? a) TCPdump b) Wireshark c) Ntop d) None of the mentioned
b
Which of the following product migrate files from one datastore to another datastore ? a) vNetwork Distributed Switch b) Storage VMotion c) VMotion d) None of the mentioned
b
Which of the following resource(s) represents the bottleneck in the current system that limits the system's performance ? a) ROM b) Resource ceiling c) Resource Parameters d) All of the mentioned
b
Which of the following runs on Xen Hypervisor ? a) Azure b) AWS EC2 c) AWS EC3 d) All of the mentioned
b
Which of the following software can be used to implement load balancing ? a) Apache mod_balancer b) Apache mod_proxy_balancer c) F6's BigIP d) All of the mentioned
b
Which of the following tool captures time-dependent performance data from resources such as a CPU load ? a) RBTool b) RRDTool c) Perfmon d) None of the mentioned
b
Which of the following vendor is offering optimization appliances for VMware infrastructure? a) Expand Networks b) Certeon c) Replify d) None of the mentioned
b
Which of the following will be host operating system for Windows Server ? a) VirtualLogix VLX b) Microsoft Hyper-V c) Xen d) All of the mentioned
b
________ is a service that creates and manages virtual network interfaces. a) VMware vStorage b) VMware vNetwork c) VMware vCompute d) Application services
b
________ virtualization abstracts networking hardware and software into a virtual network that can be managed. a) Storage b) Network c) Software d) None of the mentioned
b
__________ scaling allows you to use a virtual system to run more virtual machines a) Horizontal b) Vertical c) Out d) All of the mentioned
b
A master/slave MySQL replication architectural scheme is used for ________ database applications. a) medium size b) large c) smaller d) all of the mentioned
c
An ______ is a combination load balancer and application server that is a server placed between a firewall or router. a) ABC b) ACD c) ADC d) All of the mentioned
c
How many aspects needs to be considered while assessing network capacity ? a) one b) two c) three d) all of the mentioned
c
In _______ the virtual machine simulates hardware, so it can be independent of the underlying system hardware. a) paravirtualization b) full virtualization c) emulation d) none of the mentioned
c
Point out the correct statement : a) Page views or hits on the Web site, as measured in transactions per second b) Transactions completed on the database server, as measured by hits per second c) Performance logs are a primary source of data that everyone should have available for planning purposes d) All of the mentioned
c
Point out the wrong statement : a) Abstraction enables the key benefit of cloud computing: shared, ubiquitous access b) Virtualization assigns a logical name for a physical resource and then provides a pointer to that physical resource when a request is made c) All cloud computing applications combine their resources into pools that can be assigned on demand to users d) All of the mentioned
c
Point out the wrong statement : a) Load balancing virtualizes systems and resources by mapping a logical address to a physical address b) Multiple instances of various Google applications are running on different hosts c) Google uses hardware virtualization d) All of the mentioned
c
Point out the wrong statement : a) Load testing software is a large product category with software and hardware products b) Cloud computing offers virtual solutions c) Load testing is useful in testing the performance of only Web servers d) All of the mentioned
c
Point out the wrong statement : a) Tools are available that can monitor a cloud network's performance at geographical different points and over different third-party ISP connections b) Apparent Networks company makes WAN network monitoring software c) Network Capacity is easy to measure in a reliable way d) All of the mentioned
c
The technology used to distribute service requests to resources is referred to as : a) load performing b) load scheduling c) load balancing d) all of the mentioned
c
What does the following figure represent ? Clients vCenter Server Application Service Infrastructure Services a) vSquare cloud infrastructure b) vCube cloud infrastructure c) vSphere cloud infrastructure d) None of the mentioned
c
Which of the following RDBMS is used by LAMP ? a) SQL Server b) DB2 c) MySQL d) All of the mentioned
c
Which of the following command is used to display the level of CPU activity in Linux ? a) sep b) sav c) sar d) None of the mentioned
c
Which of the following is Type 2 VM ? a) VirtualLogix VLX b) VMware ESX c) Xen d) LynxSecure
c
Which of the following is a service that aggregates servers into an assignable pool ? a) VMware vStorage b) VMware vNetwork c) VMware vCompute d) Application services
c
Which of the following is one of the major categories of Amazon Machine Instances that you can create on the Amazon Web Service ? a) WAMP b) XAMPP c) LAMP d) None of the mentioned
c
Which of the following is used as Open source distributed monitoring system ? a) Dstat b) GraphClick c) Ganglia d) None of the mentioned
c
Which of the following layer serves as the mediator for file I/O, the memory I/O, and application calls and response to DLLs? a) application b) client c) virtualization d) None of the mentioned
c
Which of the following performance analysis tool lets you save its state for Windows ? a) MMS b) CloudWatch c) Microsoft Management Console d) All of the mentioned
c
AMI imaging service is provided by Amazon for : a) private use b) public use c) pay-per-use d) all of the mentioned
d
Point out the correct statement : a) A client can request access to a cloud service from any location b) A cloud has multiple application instances and directs requests to an instance based on conditions c) Computers can be partitioned into a set of virtual machines with each machine being assigned a workload d) All of the mentioned
d
Point out the correct statement : a) A virtual machine is a computer that is walled off from the physical computer that the virtual machine is running on b) Virtual machines provide the capability of running multiple machine instances, each with their own operating system c) The downside of virtual machine technologies is that having resources indirectly addressed means there is some level of overhead d) All of the mentioned
d
Point out the correct statement : a) Capacity planning seeks to match demand to available resources b) Capacity planning examines what systems are in place, measures their performance, and determines patterns in usage that enables the planner to predict demand c) Resources are provisioned and allocated to meet demand d) All of the mentioned
d
Point out the correct statement : a) Use of different machine instance sizes is an attempt to create standard servers b) Reducing the variability between servers makes it easier to troubleshoot problems and simpler to deploy and configure new systems c) A server with the same set of software, system configuration, and hardware should perform similarly if given the same role in an infrastructure d) All of the mentioned
d
Which of the following factor can be considered to determine WAN Capacity ? a) Routing and switching protocols b) Overall system traffic c) Network interconnect technologies d) All of the mentioned
d
Which of the following instance has API name: m2.4xlarge ? a) High-Memory Quadruple Extra Large Instance b) Small Instance c) Micro Instance d) High-CPU Extra Large Instance
d
Which of the following is Type 1 Hypervisor ? a) Wind River Simics b) Virtual Server 2005 R2 c) KVM d) LynxSecure
d
Which of the following is not the aspect considered for network capacity ? a) Network traffic from the cloud to the network interface b) Network traffic to and from the network interface at the server c) Network traffic from the cloud through your ISP to your local network interface d) All of the mentioned
d
Which of the following network resources can be load balanced ? a) Connections through intelligent switches b) DNS c) Storage resources d) All of the mentioned
d
Which of the following resource has following graph structure for web servers ? a) Network I/O b) RAM c) Disk d) None of the mentioned
d
Which of the following type of virtualization is also characteristic of cloud computing ? a) Storage b) Application c) CPU d) All of the mentioned
d
