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Networking Fundamentals
Network+
3. How does SAN differ from NAS?
A. SAN provides access to a SCSI disk exclusively, while NAS provides
access to SCSI, ATA, and EIDE drives.
B. SAN offers encryption; NAS does not.
C. SAN does not increase local network traffi c; NAS does.
D. SAN is connected to the local network system, while NAS is accessed
remotely via a WAN link.
4. What is the minimum number of drives required for implementing a RAID
5 installation?
A. 1
B. 2
C. 3
D. 4
5. What does the term fault tolerance mean?
A. The ability to fi nd faults in data before it is backed up.
B. The ability of the network administrator to tolerate system policy
breeches by users.
C. The ability to recover from a system failure.
D. The ability to continue normal operation despite a system failure.
6. Which of the following describes the ability to change a module such as
hard disk drive or power supply on a server without the need to shut
down the server?
A. System substitution
B. On the fl y changes
C. Hot-swap
D. Infi nite run ability
7. What is the function of disk striping?
A. Reduces the total amount of time it takes to store large amounts of data.
B. Stores duplicate data across two or more drives.
C. Ensures data integrity.
D. Aids in disaster recovery.
8. How does a client access fi les on a NAS device?
A. Through NAS client software.
B. Through a server that is attached to the NAS device.
C. Directly through Category 5e cable.
D. Directly through high-speed, fi ber-optic cable.
9. An investment broker is installing a network system for his employees and
to provide customer access. Money transactions will occur on a continuous
basis. Which RAID level would you recommend for this business?
A. RAID 0
B. RAID 1
C. RAID 1 (with duplexed drives)
D. RAID 5
10. Multiple CPUs in a server can perform which of the following?
A. Unilateral processing
B. Multiplexed processing
C. Synchronous processing
D. Parallel processing