An administrator is troubleshooting a failure in the datacenter in which a server shut down/powered off when utility power was lost. The server had redundant
power supplies. Which of the following is the MOST likely cause of this failure?
A. The UPS batteries were overcharged
B. Redundant power supplies require 220V power
C. Both power supplies were connected to the same power feed
D. The power supplies were not cross-connected
Show Answer
Correct Answer: C
Explanation: Both power supplies on the same feed share a single point of failure. If that feed lost power, neither supply could keep the server running. Redundancy requires separate power feeds, with backup power available during a utility outage.
Question 22
A server administrator needs to keep a copy of an important fileshare that can be used to restore the share as quickly as possible. Which of the following is the
BEST solution?
A. Copy the fileshare to an LTO-4 tape drive
B. Configure a new incremental backup job for the fileshare
C. Create an additional partition and move a copy of the fileshare
D. Create a snapshot of the fileshare
Show Answer
Correct Answer: D
Explanation: A fileshare snapshot captures its state at a point in time and allows rapid restoration. Restoring from tape or an incremental backup generally takes longer.
Question 23
A company is building a new datacenter next to a busy parking lot. Which of the following is the BEST strategy to ensure wayward vehicle traffic does not interfere
with datacenter operations?
A. Install security cameras
B. Utilize security guards
C. Install bollards
D. Install a mantrap
Show Answer
Correct Answer: C
Explanation: Bollards provide a physical barrier that can stop or deflect vehicles before they reach the datacenter. Cameras and guards detect or respond to incidents, while a mantrap controls pedestrian access.
Question 24
An administrator runs a port scan and finds the following port list:
Which of the following changes should the administrator make to only allow encrypted email ports? (Choose two.)
A. Close port 25.
B. Open port 80.
C. Open port 143.
D. Open port 443.
E. Close port 587.
F. Open port 993.
Show Answer
Correct Answer: A, F
Explanation: Close port 25, which is traditionally used for unencrypted SMTP, and open port 993 for encrypted IMAP over TLS (IMAPS). Port 587 is used for message submission and commonly supports STARTTLS, so it does not need to be closed for this pair of changes.
Question 25
The management team has mandated the encryption of all server administration traffic. Which of the following should most likely be implemented?
A. SSH
B. VPN
C. SELinux
D. FTPS
Show Answer
Correct Answer: A
Explanation: SSH encrypts remote server-administration sessions, such as command-line access. FTPS is intended for secure file transfers, a VPN protects broader network traffic, and SELinux is a host security mechanism rather than a traffic-encryption protocol.
Question 26
Multiple users have reported an issue accessing files on a specific server. Which of the following should be the first step in troubleshooting this issue?
A. Notify the key stakeholders of an outage.
B. Immediately execute a backup of the server.
C. Identify changes made to the environment.
D. Correct the permissions on the folder containing the files.
Show Answer
Correct Answer: C
Explanation: Identify recent changes to the environment first to help determine why multiple users lost access. Changing permissions or taking other corrective action before finding the cause could make the problem worse.
Question 27
Which of the following backup types would be most useful when restoring a failed physical server to new hardware?
A. System state
B. Snapshot
C. Incremental
D. Differential
Show Answer
Correct Answer: B
Explanation: A snapshot captures the server’s system and data at a point in time, making it the most useful option here for restoring onto replacement hardware. System state covers only selected system components, while incremental and differential backups generally depend on a full backup.
Question 28
The support team from an external site is unable to access a new web server using SSH. The support team is able to access all the application servers and other web servers without any issues. The security team confirms the firewall rules were applied correctly. Below is detailed information about each device:
Which of the following needs to be reconfigured to allow the support team to access all the web servers remotely using port 22?
A. Web server 1 default gateway
B. Application server default gateway
C. Web server 1 IP address
D. External site IP address
E. Firewall rules
Show Answer
Correct Answer: A
Explanation: Web server 1’s default gateway needs to be corrected. Because the support team can reach the other servers and the firewall rules are confirmed correct, a wrong gateway on the new web server would prevent it from sending SSH responses back to the external site.
Question 29
A systems administrator is provisioning a large number of virtual Linux machines that will be configured identically. The administrator would like to configure the machines quickly and easily but does not have access to an automation/orchestration platform. Additionally, the administrator would like to set up a system that can be used in the future, even on newer versions of the OS. Which of the following will best meet the administrator's requirements?
A. Deploying each server from a VM template
B. Using a kickstart file during installation
C. Configuring each server manually one at a time
D. Copying/pasting configuration commands into each server through SSH sessions
E. Configuring a single server and then creating clones of it
Show Answer
Correct Answer: B
Explanation: A Kickstart file automates Linux installation and configuration, making it suitable for provisioning many identical machines without an orchestration platform. It can also be adapted for later OS versions, unlike relying on a template or clone tied to a particular installed system.
Question 30
Which of the following technologies best describes Hyper-V Replica?
A. High availability
B. VMotion
C. Live migration
D. Disaster recovery
Show Answer
Correct Answer: D
Explanation: Hyper-V Replica asynchronously replicates virtual machines to a secondary Hyper-V host or site, enabling recovery after a disaster. It is a disaster recovery feature, not live migration or high availability.
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