98-365 : Windows Server Administration Fundamentals : Part 12

98-365 : Windows Server Administration Fundamentals : Part 12

1. You create a new domain.

   Which two Active Directory objects will be available by default? (Choose two.)

   • Computer
   • Employee
   • User
   • Device
   • Server

   Explanation:

   An Active Directory structure is an arrangement of information about objects. The objects fall into two broad categories: resources (e.g., printers) and security principals (user or computer accounts and groups). Security principals are assigned unique security identifiers (SIDs).

   Note:
   Install-ADDSDomain installs a new Active Directory domain configuration.

2. You want to centrally specify managed configurations for domain user and member computers in your Active Directory Domain Services (AD DS) domain infrastructure.

   What should you use?

   • Active Directory Sites and Services
   • Group Policy
   • Active Directory Federation Services
   • Domain security groups

3. Your network is set up as an Active Directory Domain Services (AD DS) domain. You have a single domain controller that runs a Server Core installation of Windows Server 2016.

   You need to back up the Active Directory.

   Which command should you use?

   • Mqbkup
   • Wbadmin
   • Ntbackup
   • Ntdsutil

4. What is the minimum number of disks required for RAID 5?

   • 1
   • 2
   • 3
   • 5
   Explanation:
   You would need two disks for data and one for parity.

5. The manager at the coffee house where you work asks for advice on adding storage to the store’s server to perform backups.

   The additional storage must meet the following requirements:

   – Hold at least 600 GB
   – Be reasonably priced
   – Be reasonably fast

   Which solution should you recommend?

   • USB hard drive
   • USB flash drive
   • SCSI tape backup system
   • External SCSI hard drive
   Explanation:
   USB hard drives have higher capacity than USB flash drives.
   USB hard drives are faster and cheaper than a SCSI tape backup system.
   USB hard drives are cheaper than external SCSI hard drives.

6. Disk striping occurs when data is:

   • Duplicated on separate disks
   • Duplicated on the same disk
   • Shared between disks
   • Written across multiple disks

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

   • Small Computer System Interface (SCSI)
   • Direct Attached Storage (DAS)
   • Network Attached Storage (NAS)
   • Storage Area Network (SAN)
   Explanation:
   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.

8. HOTSPOT

   For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.

   

   

9. 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.

   • 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.
   • Ensure that the backups are running smoothly.
   Explanation:
   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.

10. 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?

    • NTDSUTIL
    • DISKPART
    • FDISK
    • FSUTIL
    Explanation:
    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.

11. 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?

    • 5
    • 6
    • 4
    • 3
    Explanation:
    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.

12. 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?

    • RAID-5 volume
    • Mirrored volume
    • Striped volume
    • Spanned volume
    Explanation:
    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.

13. 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.)

    • The actual program can be 512 bytes long.
    • Four 16-byte master partition records are present in MBR.
    • The end of MBR marker is h55CC.
    • The volume boot sector is present in cylinder 0, head 0, and sector 1 of the default boot drive.
    Explanation:
    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.

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

    • DAS
    • SAS
    • NAS
    • SAN
    Explanation:
    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.

15. 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?

    • RAID-1
    • RAID-10
    • RAID-0
    • RAID-3
    Explanation:
    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.

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

    • RAID-1
    • RAID-0
    • RAID-2
    • RAID-3
    Explanation:
    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.

17. 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.)

    • CHAP
    • IPSec
    • PAP
    • MS-CHAP
    Explanation:
    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.

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

    You need to implement a system in the network that provides data access to heterogeneous network clients using SMB/CIFS.

    Which of the following will you use?

    • Storage area network
    • Failover clustering
    • Datafile striping
    • Network-attached storage
    Explanation:
    You should use Network-attached storage (NAS).
    Network-attached storage (NAS) is file-level computer data storage connected to a computer network providing data access to heterogeneous network clients. NAS systems contain one or more hard disks, often arranged into logical, redundant storage containers or RAID arrays.
    It removes the responsibility of file serving from other servers on the network. NAS uses file-based protocols, such as NFS, SMB/CIFS, or AFP.
    NAS units rarely limit clients to a single protocol.

    Incorrect Answers:
    A: Storage Area Networks are a specialized RAID array that can be accessed by multiple servers over a specialized network connection. A host bus adapter is required on servers that use the Storage Area Networks. The Storage Area Networks administrator partitions the available storage into logical unit numbers and assigns them to the servers. The disk volume shown in Disk manager is logical unit numbers. SAN use block-level protocols such as iSCSI or Fiber Channel. They do not use SMB or CIFS.

    B: Failover clustering is a technique used in the Windows Server 2016 environment to provide high availability of applications.

    C: Datafile striping, also referred to as striping, is a technique used to enhance the I/O of datafiles. In this technique, a large datafile is split into smaller datafiles and the latter are then stored on separate disks. Hence, striping allows quicker I/Os by reading or writing through multiple read-write heads of the disks (which store the datafiles that have been split) operating in parallel. This technique is of great help in parallel processing where throughput is of prime concern.

19. You are using self-healing NTFS in Microsoft Windows Server 2016.

    Which of the following are functions of self-healing NTFS? Each correct answer represents a complete solution. Choose all that apply.

    • It decreases failed file system mounting requests that occur due to inconsistencies during restart or for an online volume.
    • It identifies and recovers an NTFS volume.
    • It provides continuous data availability.
    • It allows an authorized user to administer and monitor repair operations.
    Explanation:
    The various functions of self-healing NTFS are as follows:

    – It provides continuous data availability.
    – It saves data.
    – It decreases failed file system mounting requests that occur due to inconsistencies during restart or for an online volume.
    – It offers better reporting.
    – It allows an authorized user to administer and monitor repair operations.
    – It recovers a volume if the boot sector is readable, but it does not identify an NTFS volume.
    – It authenticates and maintains data within critical system files.

20. Mark works as a Network Administrator for NetTech Inc. The company has a Windows 2016 domain-based network. The network has a file server that uses a RAID-5 volume. The RAID-5 volume is configured with five hard disk drives. Over the weekend, a drive in the RAID-5 volume fails.

    What will Mark do to restore the RAID-5 volume?

    • Replace the failed drive with a new one, use FDISK, select a new area of free space, and then regenerate the volume.
    • Replace the failed drive with a new one, use Disk Management, select a new area of free space, and then regenerate the volume.
    • Use Disk Management, select the failed drive, and then regenerate the volume.
    • Use FDISK to delete the RAID-5 volume, and then restore data from the tape backup.
    Explanation:
    In order to restore the RAID-5 volume, Mark will have to replace the failed drive with a new one, use Disk Management, select a new area of free space, and then regenerate the volume. When a member of a mirrored volume or a RAID-5 volume fails, it becomes an orphan. Data for the orphaned member can be regenerated from the remaining members. A new area of free space that is of the same size or larger than the other members of the RAID-5 volume should be selected in Disk Management and then the data should be regenerated. The fault-tolerance driver reads the information from the stripes on the other member disks, and then re-creates the data of the missing member and writes it to the new member on restarting the computer. The volume must be locked by the operating system to regenerate a RAID-5 volume. All network connections to the volume will be lost when a volume is regenerated.