CompTIA Network+ Practice Tests. Craig Zacker
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of the following storage techniques prevents version skew from occurring during a system backup?IncrementalsDifferentialsIterationsSnapshots
145 If you back up your network by performing a full backup every Wednesday at 6:00 p.m. and incremental backups in the evening of the other days of the week, how many jobs would be needed to completely restore a computer with a hard drive that failed on a Monday at noon?OneTwoFiveSix
146 How does an autochanger increase the overall storage capacity of a backup solution?By compressing data before it is stored on the mediumBy automatically inserting media into and removing it from a driveBy running a tape drive at half its normal speedBy writing two tracks at once onto a magnetic tape
147 For a complete restore of a computer that failed at noon on Tuesday, how many jobs would be needed if you performed full backups to tape at 6:00 a.m. every Wednesday and Saturday and incremental backups to tape at 6:00 a.m. every other day?OneTwoThreeFour
148 If you back up your network by performing a full backup every Wednesday at 6:00 p.m. and differential backups in the evening on the other six days of the week, how many jobs would be needed to completely restore a computer with a hard drive that failed on a Tuesday at noon?OneTwoSixSeven
149 Why does performing incremental backups to a hard drive, rather than a tape drive, make it possible to restore a server with a single job, rather than multiple jobs?Because hard drives hold more data than tape drivesBecause hard drives can transfer data faster than tape drivesBecause hard drives are random access devices and tape drives are notBecause hard drives use a different block size than tape drives
150 Which of the following is not a fault tolerance mechanism?UPSRAID 1SNMPClustering
151 Which of the following is the primary difference between the Power Distribution Units (PDUs) used in datacenters and the standard power strips used in offices and homes?More outletsLarger power inputLarger power outputAll of the above
152 Which of the following statements about backing up a firewall's state and backing up its configuration are true? (Choose all that apply.)A backup of a firewall's state contains more data than a backup of its configuration.A backup of a firewall's configuration contains more data than a backup of its state.A backup of a firewall's state contains the exact same data as a backup of its configuration.A backup of a firewall's state includes its configuration.A backup of a firewall's configuration includes its state.
153 Which of the following is the most commonly recommended fire suppression system for a datacenter?Carbon DioxideWaterFoamHFC-125
154 Concurrent multipath routing (CMR) is a technique that provides which of the following benefits? (Choose all that apply.)Increased bandwidthFault toleranceData encapsulationLoad balancing
155 A First Hop Redundancy Protocol (FHRP) is designed to dynamically alter which one of the following Internet Protocol (IP) configuration settings on a network host?IP addressSubnet maskDefault gatewayDNS server address
156 Which of the following is not a First Hop Redundancy Protocol (FHRP)?CARPVRRPHSRPRARP
157 Ralph is designing a new network with the redundant switching arrangement shown in the accompanying figure. This redundancy enables every node on the network to communicate with any other node, even if one of the switches should fail. Which of the following is a potential drawback of this arrangement?Runt framesLate collisionsBroadcast stormsCorrupted switch lookup tables
158 Installing redundant firewalls in a parallel configuration, as shown in the accompanying graphic, provides which of the following benefits? (Choose all that apply.)Load balancingFault toleranceAdded securityEnhanced performance
159 Redundant servers running in an active-active configuration provide which of the following advantages that the same servers in an active-passive configuration do not? (Choose all that apply.)Increased performanceFault toleranceData encapsulationLoad balancing
160 To build a network with redundant Internet connections that ensures full fault tolerance, it is necessary to use which of the following?Different ISPsDifferent WAN connectionsDifferent routersAll of the above
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