An administrator is designing a server for use in a factory environment that contains many pieces of large electrical equipment. Which of the following would be the BEST type of cable for the administrator to use to minimize networking issues?
A. Coaxial
B. Cat 5
C. Cat 6
D. Fiber optic
Show Answer
Correct Answer: D
Explanation: Fiber-optic cable transmits data using light rather than electrical signals, so it is immune to electromagnetic interference from large electrical equipment.
Question 152
A technician noted the RAID hard drives were functional while troubleshooting a motherboard failure. The technician installed a spare motherboard with similar specifications and used the original components.
Which of the following should the technician do to restore operations with minimal downtime?
A. Reinstall the OS and programs.
B. Configure old drives to RAID.
C. Reconfigure the RAID.
D. Install from backup.
Show Answer
Correct Answer: C
Explanation: Reconfigure or import the existing RAID array on the replacement motherboard so the original drives are recognized and operations can resume without reinstalling or restoring from backup.
Question 153
A security technician generated a public/private key pair on a server. The technician needs to copy the key pair to another server on a different subnet.
Which of the following is the MOST secure method to copy the keys?
A. HTTP
B. FTP
C. SCP
D. USB
Show Answer
Correct Answer: C
Explanation: SCP transfers files over SSH, encrypting the connection and authenticating the remote server. HTTP and FTP do not provide equivalent protection by default, and SCP is the secure network-transfer choice for copying the keys between subnets.
Question 154
A server technician downloaded new firmware from the manufacturer’s website. The technician then attempted to install the firmware on the server, but the installation failed, stating the file is potentially corrupt.
Which of the following should the technician have checked prior to installing the firmware?
A. DLP configuration
B. MBR failure
C. ECC support
D. MD5 checksum
Show Answer
Correct Answer: D
Explanation: An MD5 checksum can be compared with the manufacturer’s published checksum to verify the downloaded firmware file’s integrity before installation.
Question 155
A server administrator is gathering business requirements to determine how frequently backups need to be performed on an application server. Which of the following is the administrator attempting to establish?
A. MTBF
B. RPO
C. MTTR
D. RFC
Show Answer
Correct Answer: B
Explanation: RPO (Recovery Point Objective) defines the maximum acceptable amount of data loss, expressed as time. It is used to determine how frequently backups must be performed.
Question 156
Which of the following describes a configuration in which both nodes of a redundant system respond to service requests whenever possible?
A. Active-passive
B. Failover
C. Active-active
D. Failback
Show Answer
Correct Answer: C
Explanation: In an active-active configuration, both nodes are active and can handle service requests. In active-passive, one node is on standby; failover and failback describe transitions between nodes.
Question 157
Which of the following licensing models was created by software companies in response to the increasing density of processors?
A. Per-instance
B. Per-server
C. Per-user
D. Per-core
Show Answer
Correct Answer: D
Explanation: Per-core licensing charges according to the number of processor cores, accounting for the increased computing capacity of multicore processors more precisely than per-processor licensing.
Sources:
https://adtmag.com/articles/2005/07/25/software-license-models-shifting-to-accommodate-multicore-processors.aspx
Question 158
The management team has mandated the use of data-at-rest encryption on all corporate servers. Using this encryption paradigm will ensure:
A. website traffic is protected while traversing the internet.
B. files stored on the server are protected against physical theft.
C. attachments that are emailed from this server cannot be intercepted.
D. databases in use are protected from remote hackers.
Show Answer
Correct Answer: B
Explanation: Data-at-rest encryption protects information stored on servers, such as files on a disk, if the storage is physically stolen or accessed outside the server. It does not encrypt website traffic or email in transit, and it does not generally protect data while a database is in use.
Question 159
A technician needs to restore data from a backup. The technician has these files in the backup inventory:
Which of the following backup types is being used if the file 01062020.bak requires another file to restore data?
A. Full
B. Incremental
C. Snapshot
D. Differential
Show Answer
Correct Answer: B
Explanation: An incremental backup cannot restore the complete data by itself; it requires the preceding full backup and any intervening incremental backups. A differential backup also requires a full backup, so needing another file alone does not conclusively distinguish the two.
Question 160
A systems administrator is attempting to install a package on a server. After downloading the package from the internet and trying to launch it, the installation is blocked by the antivirus on the server. Which of the following must be completed before launching the installation package again?
A. Creating an exclusion to the antivirus for the application
B. Disabling real-time scanning by the antivirus
C. Validating the checksum for the downloaded installation package
D. Checking for corruption of the downloaded installation package
Show Answer
Correct Answer: C
Explanation: Validate the downloaded package’s checksum against a trusted value from the vendor before attempting to run it again. An antivirus exclusion or disabling real-time scanning would bypass a security control rather than establish that the package is safe.
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