Cloud Computing: March 2018

Archive for March 2018

The concept of creating groups of storage requirements in a hierarchy to match optimum storage offerings from the cloud service provider is known as

Answer: Tiering

The time it takes to find data on a disk is determined by the RPM of the spinning disks, read-write head seek time, bus performance, and RAID type, all determining the disk ______.

Answer: Access Speed

Common HDD types are and ______________ .

Answer: Spinning, SSD

The SCSI protocol is encapsulated into Fibre Channel and then into ______ to create FCoE.

Answer: Ethernet Frames

_____ arrays write a block of data to be stored on two or more disks and then mirrors the striped arrays with a second array.

Answer: RAID 0+1

Filesystems are implemented in operating systems to standardize the data structures on the HDD; Microsoft offers and ______________ in their operating systems.

Answer: FAT, NTFS

______ creates an array of hard drives that allows for any single hard drive to fail and all data can be recovered.

Answer: RAID 5

A ______ is a dedicated fabric that allows multiple servers to access a centralized storage resource.

Answer: SAN (Storage Area Network)

The process of restricting LUN access can be configured on the HBAs as or on the SAN switch as .

Answer: Masking, Zoning

With both direct- and network-attached storage, -level and -level storage techniques are implemented.

Answer: File, Block

Which of the following are important factors when maintaining a storage network in the cloud?

A. Change management
B. Downtime
C. Best practices
D. Project management

Answer: Change Management, Best Practices, and Project Management

Which of the following is a process of making a SAN highly available and fault resistant?

Answer: Multipathing

For SAN LUN mappings and restrictions, what process can be implemented at the HBA or storage controller level?

Answer: Masking

Which of the following is a SAN technique that restricts storage to a specific server or a small group of servers that is implemented in SAN switches?

Answer: Zoning

What is a type of filesystem that is found in Unix operating systems and is now seen in Linux distributions?

Answer: UFS (Unix File System)

Which storage type stripes file data and performs a parity checking data over multiple disks that can recover from a hard disk failure?

Answer: RAID 5

What is the name for a grouping of hard drives for redundancy and performance?

Answer: RAID (Redundant Array of Inexpensive Disks)

What system was developed to address the different types of storage needs a cloud consumer may require for availability, response times, backups, and economics?

Answer: Tiering

Which of the following are standardized hardware systems for storage interconnections? (Choose three.)

A. ATA
B. SATA
C. SCSI
D. Block
E. File

Answer: ATA, SATA, SCSI

Which of the following are HDD architectures? (Choose two.)

A. WWN
B. Spinning
C. SSD
D. EXT

Answer: Spinning, SSD

This storage technology can be encapsulated inside a TCP/IP frame and sent across as converged switch fabric; when encapsulated, what is it known as?

Answer: iSCSI

What is a predominant storage protocol in a cloud provider's datacenter?

Answer: Fibre Channel

What is the technology of using Fibre Channel on a converged network fabric?

Answer: FCoE (Fibre Channel over Ethernet)

Each Fibre Channel device has a unique identifier known as what?

Answer: WWN (Worldwide Name)

What is a SAN technique used to restrict LUNs to specific storage devices?

Answer: Zoning

What is a process of making storage resources available to some servers on a SAN and restricting the storage to other systems?

Answer: Masking

What interface hardware installed in a server is used to connect to a Fibre Channel network?

Answer: HBA (Host Bus Adapter)

Which of the following is the name of a high-speed network storage solution?

A. Block access
B. Zoning
C. VMFS
D. SAN

Answer: SAN (Storage Area Network)

What type of storage interconnections are seen in standalone servers, laptops, and desktops?

Answer: Direct-connection

What types of storage are available on a network?

Answer: Shared and SAN

On an Ethernet switch, a ______ port has the ability to transfer multiple VLANs out a single port.

A ______ is a network appliance that scales a cloud application by sharing the load across many servers.

Answer: Load Balancer

TCP/IP ports that are permanently assigned for an application are referred to as ______.

Answer: Well-Known Port Numbers

The process of converting private IP addresses to public addresses to access the Internet is called ______.

Answer: NAT (Network Address Translation)

A(n) ______ is a private network that is used both internally and allows access from business partners.

Answer: Extranet

What is the IP application that allows for automatic assignments of IP interface configuration information?

Answer: DHCP

What protocol is used for encrypted file transfer and uses TCP ports 989 and 900?

Answer: FTP (File Transfer Protocol)

What well-known port number is used by secure web servers?

Answer: Port 443 (HTTPS)

What well-known port number is used by email servers?

Answer: Port 25 (Simple Mail Transfer Protocol)

What utility is used to verify the network interface configuration on a Windows server?

Answer: Ipconfig

What Linux command is used to resolve hostnames to IP addresses?

Answer: Dig

What is the command-line utility that shows open network connections, protocol information, and addresses used?

Answer: Netstat

What is the name of the Windows tool used to show the routed path from source to destination in a network?

Answer: Tracert

What IP utility is used to verify that an IP address is available on the network and also to show the response time at that moment in time?

Answer: Ping

What device is placed in front of servers and used to increase the performance of a heavily used cloud computing site?