Microsoft Microsoft Certifications 98-365 Questions & Answers

• Question 311:

  You have installed iSCSI Initiator to enable block-based storage area networks in the network infrastructure of your organization. For security reasons, you need to configure authentication protocols in the network.

  Which of the following protocols will you use with iSCSI Initiator? Each correct answer represents a complete solution. (Choose two.)

  A. CHAP

  B. IPSec

  C. PAP

  D. MS-CHAP

  Correct Answer: AB

  iSCSI Initiator supports the Challenge Handshake Authentication Protocol (CHAP) and Internet Protocol security (IPSec) protocols. So, you can configure only these two protocols with iSCSI Initiator in network infrastructure.

• Question 312:

  Which of the following RAID level combinations makes RAID-10? Each correct answer represents a part of the solution. (Choose two.)

  A. RAID-1

  B. RAID-0

  C. RAID-2

  D. RAID-3

  Correct Answer: AB

  RAID-10 is a combination of RAID-1 and RAID-0. It is implemented at hardware level rather than on the operating system. It is used to connect mirrored disk pairs to form a RAID-0 array. Data is written on the striped set of disk array as in RAID-0 and then it is mirrored as in RAID-1. Although expensive, RAID-10 provides better fault tolerance as well as input/output performance.

• Question 313:

  Which of the following RAID levels provides best performance because data read and data write operations are not limited to a single disk, but to a set of disks?

  A. RAID-1

  B. RAID-10

  C. RAID-0

  D. RAID-3

  Correct Answer: C

  RAID-0, also known as disk striping, is made up of a disk set in which data is divided into blocks and spread equally in each disk. It provides best performance because data read and data write operations are not limited to a single disk, but to

  a set of disks.

  It does not provide data redundancy.

  Data once lost cannot be recovered.

  Incorrect Answers:

  A: RAID-1 is a type of RAID (Redundant Array of Independent Disks) for standardizing and categorizing fault-tolerant disk systems by using disk mirroring. In mirroring, data is kept on two physical disks. It copies data of one volume to another volume on a different disk. If a disk fails, the computer continues to operate using the unaffected disk. The data writing operation is performed on the primary disk as well as on the mirror disk. The mirror disk has identical data image of the primary disk. This type of disk system provides best fault tolerance, but lower writing performance.

  D: RAID-3 is a fault tolerant volume that strips data across multiple disks. It provides byte-level striping and complete data redundancy through a dedicated parity disk. RAID- 3 is constructed in the same way as RAID-5 except that RAID-5 distributes parity on all the disks.

  B: RAID-10 is a combination of RAID-1 and RAID-0. It is implemented at hardware level rather than on the operating system. It is used to connect mirrored disk pairs to form a RAID-0 array. Data is written on the striped set of disk array as in RAID-0 and then it is mirrored as in RAID-1. Although expensive, RAID-10 provides better fault tolerance as well as input/output performance.

• Question 314:

  Which of the following refers to a digital storage system directly attached to a server or workstation, without a storage network in between?

  A. DAS

  B. SAS

  C. NAS

  D. SAN

  Correct Answer: A

  Direct-attached storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between. A typical DAS system is made of a data storage device connected directly to a computer through a host bus adapter (HBA). Between those two points, there is no network device (like hub, switch, or router), and this is the main characteristic of DAS. The main protocols used for DAS connections are ATA, SATA, eSATA, SCSI, SAS, and Fibre Channel.

  Incorrect Answers:

  B: Serial Attached SCSI (SAS) is a computer bus used to move data to and from computer storage devices such as hard drives and tape drives. SAS depends on a point-to- point serial protocol that replaces the parallel SCSI bus technology. SAS offers backwards- compatibility with second-generation SATA drives.

  C: Network Attached Storage (NAS) is the hard disk storage that is set up with its own network address rather than being attached to the unit computer that is serving applications of a network's workspace users. A fully-featured operating system is not needed on a NAS device, so often a stripped-down operating system is used. NAS provides both storage and a file system.

  D: SAN stands for storage area network. It is an architecture to attach remote computer storage devices to servers in such a way that the devices appear as locally attached to the operating system. Sharing storage usually simplifies storage administration and adds flexibility since cables and storage devices do not have to be physically moved to shift storage from one server to another. SANs also tend to enable more effective disaster recovery processes.

• Question 315:

  Which of the following statements are NOT true about the Volume Boot Sector, commonly known as Master Boot Record? Each correct answer represents a complete solution. (Choose two.)

  A. The actual program can be 512 bytes long.

  B. Four 16-byte master partition records are present in MBR.

  C. The end of MBR marker is h55CC.

  D. The volume boot sector is present in cylinder 0, head 0, and sector 1 of the default boot drive.

  Correct Answer: AC

  The actual program can only be 444 bytes long. The end of MBR marker is h55AA.

  Incorrect Answers:

  B, D: All these statements are true about MBR.

• Question 316:

  Which of the following types of volumes supported by dynamic disk uses a minimum of three disks for creating a fault-tolerant drive among the drives?

  A. RAID-5 volume

  B. Mirrored volume

  C. Striped volume

  D. Spanned volume

  Correct Answer: A

  Following are the types of volumes supported by dynamic disks:

  Simple volume: It consists of disk space on a single physical disk, which can be a single area or multiple linked areas on the same disk. Spanned volume: It consists of disk space from more than one physical disk. Striped volume: It is also

  known as RAID 0 that stores data on two or more physical disks.

  Mirrored volume: It uses volumes on two different physical disks for mirroring the data onto both the disks simultaneously.

  RAID-5 volume: It uses a minimum of three disks for creating a fault-tolerant drive among the drives.

• Question 317:

  You work as a System Administrator for company Inc. The company has a Windows Server 2016 based network environment. There are twenty client computers running Windows 10 and three servers running Windows Server 2016. You have to ensure that customer service representatives can access the client's information whenever they need. For this, you want to configure a RAID 5 solution in Network Attached Storage (NAS).

  What is the minimum number of hard drives can you use?

  A. 5

  B. 6

  C. 4

  D. 3

  Correct Answer: D

  RAID-5 supports striped-with-parity. It contains a minimum of three disks.

  In this disk system, data along with its parity bits is stored across multiple disks. When a file is written to a RAID-5 volume, the data is written in stripes across the disks. Parity information is also written across the disks. This parity information

  allows the disks in the array to keep functioning, in case a disk in the set fails. Due to data redundancy, RAID-5 provides fault tolerance.

• Question 318:

  You work as a Network Administrator for Net Perfect Inc. The company has a Windows Server 2016 network environment. The network is configured as a Windows Active Directory-based single forest network.

  You are configuring a new computer. You want to configure the computer's hard disk as a dynamic disk.

  Which of the following command-line tools will you use to convert a hard disk from basic to dynamic?

  A. NTDSUTIL

  B. DISKPART

  C. FDISK

  D. FSUTIL

  Correct Answer: B

  In order to accomplish the task, you will have to use the DISKPART command-line utility.

  A dynamic disk is a physical disk, which supports volumes that span multiple disks such as striped volume, RAID- 5 volume, etc. A dynamic disk uses a hidden database to track information about dynamic volumes on the disk and other

  dynamic disks in the computer. Dynamic disks can be made by converting the basic disks. This can be done by using Disk Management or the DISKPART command-line utility. When a basic disk is converted into a dynamic disk, all existing

  basic volumes become dynamic volumes.

• Question 319:

  You work as a System Administrator for company Inc. The company has a Windows Server 2016 based network environment. There are twenty client computers running Windows 10 and three servers running Windows Server 2016.

  You want to increase the data availability for these servers without rebuilding them and without investing a large amount of money for purchasing array controllers.

  What will you do? Each correct answer represents a part of the solution. Choose all that apply.

  A. Add another physical drive to each server.

  B. Convert the drives from basic disks to dynamic disks.

  C. Implement the RAID 1 solution between the two drives.

  D. Ensure that the backups are running smoothly.

  Correct Answer: ABC

  In order to increase the data availability for the servers without rebuilding them and without investing a large amount of money for purchasing array controllers, you should do the following tasks:

  Add another physical drive to each server.

  Convert the drives from basic disks to dynamic disks.

  Implement the RAID 1 solution between the two drives.

  Incorrect Answers:

  D: Backups do not increase the data availability. They help you in restoring the original data after a data loss event.

• Question 320:

  What is the name for a stand-alone digital storage system connected directly to a server HBA or workstation HBA?

  A. Small Computer System Interface (SCSI)

  B. Direct Attached Storage (DAS)

  C. Network Attached Storage (NAS)

  D. Storage Area Network (SAN)

  Correct Answer: D

  SAN stands for storage area network. It is an architecture to attach remote computer storage devices to servers in such a way that the devices appear as locally attached to the operating system. Sharing storage usually simplifies storage

  administration and adds flexibility since cables and storage devices do not have to be physically moved to shift storage from one server to another. SANs also tend to enable more effective disaster recovery processes.

  An HBA is a Host Bus Adapter. This is used to connect the computer (server or workstation) to the SAN.

  Incorrect Answers:

  A: SCSI is a computer bus used to move data to and from computer storage devices such as hard drives and tape drives.

  B: Direct-attached storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between. A typical DAS system is made of a data storage device connected directly to a computer through a host bus adapter (HBA). Between those two points, there is no network device (like hub, switch, or router), and this is the main characteristic of DAS. The main protocols used for DAS connections are ATA, SATA, eSATA, SCSI, SAS, and Fibre Channel.

  C: Network Attached Storage (NAS) is the hard disk storage that is set up with its own network address rather than being attached to the unit computer that is serving applications of a network's workspace users. A fully-featured operating system is not needed on a NAS device, so often a stripped-down operating system is used. NAS provides both storage and a file system.