86. When using the NFS protocol, adding clients and setting read and write permissions have an impact on performance.

• A.FALSE
• B.TRUE

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What is the correct description of RAID 5 as follows? (Multiple choice)

• A.RAID 5 has a fixed check disk
• B.RAID 5 is verified by XOR algorithm
• C.RAID 5 uses striping to write data
• D.RAID 5 allows up to two member disks to fail simultaneously without data loss

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Which of the following three disaster recovery technologies are commonly used? (Multiple choice)

• A.Array-based disaster recovery
• B.Disaster recovery based on the host layer
• C.Disaster recovery based on the network layer
• D.Disaster recovery based on application layer

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The disadvantage of full backup is that it requires the last full backup and the most recent differential backup to fully restore data.

• A.TRUE
• B.FALSE

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Statement 1: Everytime a tape is used to restore data/ some data will be lost.
Statement 2: Backup strategies that use tape as backup media typically have a high RTO.

• A.Statement 1 is true; Statement 2 is false.
• B.Statement 1 and 2 are false.
• C.Statement 1 is false; Statement 2 is true.
• D.Statement 1 and 2 are true

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