A security administrator ran a port scanning tool against a virtual server that is hosting a secure website. A list of open ports was provided as documentation. The management team has requested that non-essential ports be disabled on the firewall. Which of the following ports must remain open?
A. 25
B. 53
C. 443
D. 3389
E. 8080
Show Answer
Correct Answer: C
Explanation: Port 443 is the standard port for HTTPS, which serves secure website traffic. It must remain open for visitors to access the site.
Sources:
https://www.geeksforgeeks.org/how-to-open-ports-in-linux-server-firewall
Question 52
A server administrator needs to ensure proprietary data does not leave the company. Which of the following should the administrator implement to meet this requirement?
A. A review of users' activities
B. File-level monitoring
C. A SIEM solution
D. A DLP policy
Show Answer
Correct Answer: D
Explanation: A Data Loss Prevention (DLP) policy is designed to identify and prevent unauthorized disclosure or transfer of proprietary data outside the company. The other options may support monitoring or investigation but do not directly enforce data-loss controls.
Question 53
A server administrator installs a new OS on two physical servers and then adds them to the network. According to the security policy, flash drives are not allowed on the network. Which of the following types of media will the administrator most likely use? (Choose two.)
A. Optical
B. Embedded
C. VM cloning
D. PXE
E. USB
F. FTP
Show Answer
Correct Answer: A, D
Explanation: Optical media and PXE network boot allow OS installation without using prohibited flash drives. USB is disallowed, while embedded media and VM cloning do not fit the described installation method for two physical servers.
Question 54
A software developer is unable to reach an internal website. The developer's attempt to ping the FQDN returns the following IP address: 104.18.17.32. Which of the following is the most likely reason for this result?
A. The NIC is set to DHCP.
B. The default gateway is misconfigured.
C. The primary DNS server is 8.8.8.8.
D. There is a manual entry in the hosts file.
Show Answer
Correct Answer: D
Explanation: A manual entry in the hosts file can override DNS resolution and map the internal website’s FQDN to the public IP address 104.18.17.32, preventing access to the intended internal site.
Question 55
Which of the following technologies can successfully back up files that are used by other processes without stopping those processes?
A. Differential
B. Archive
C. Synthetic full
D. Open file
Show Answer
Correct Answer: D
Explanation: Open-file backup can copy files while other processes are using them, without requiring those processes to stop. The other options describe backup types, not this capability.
Question 56
A server administrator is setting up a disk with enforcement policies on how much data each home share can hold. The amount of data that is redundant on the server must also be minimized. Which of the following should the administrator perform on the server? (Choose two.)
A. Partitioning
B. Deduplication
C. Disk quotas
D. Compression
E. Cloning
F. Provisioning
Show Answer
Correct Answer: B, C
Explanation: Disk quotas enforce limits on how much storage each home share can use. Deduplication identifies and removes redundant copies of data, reducing the amount of duplicate data stored on the server.
Question 57
An administrator is troubleshooting a server that is rebooting and crashing. The administrator notices that the server is making sounds that are louder than usual. Upon closer inspection, the administrator discovers that the noises are coming from the front of the chassis. Which of the following is the most likely reason for this behavior?
A. One of the fans has failed.
B. The power supply has failed.
C. The RAM is malfunctioning.
D. The CPU is overheating.
Show Answer
Correct Answer: A
Explanation: A failing front chassis fan can make unusually loud noises and reduce airflow, causing overheating that leads to crashes and reboots.
Question 58
A technician is setting up a repurposed server. The minimum requirements are 2TB while ensuring the highest performance and providing support for one drive failure. The technician has the following six drives available:
Which of the following drive selections should the technician utilize to best accomplish this goal?
A. 1, 2, 4, and 6
B. 1, 2, 3, 5, and 6
C. 1, 2, 4, 5, and 6
D. 1, 2, 3, 4, and 6
Show Answer
Correct Answer: C
Explanation: Select drives 1, 2, 4, 5, and 6 for a RAID 5 array. RAID 5 provides fault tolerance for one drive failure, and its usable capacity is approximately the total capacity minus one drive’s capacity. This selection meets the 2TB minimum while providing the best performance among the suitable selections.
Question 59
An administrator is working on improving the security of a new domain controller. A report indicates several open ports on the server. Which of the following ports should the administrator disable?
A. 135
B. 636
C. 3268
D. 3389
Show Answer
Correct Answer: D
Explanation: Port 3389 is used for Remote Desktop Protocol (RDP), which is not required for core domain controller services and can be disabled if remote desktop access is not needed. Ports 135, 636, and 3268 support RPC or directory services used by domain controllers.
Question 60
An engineer is configuring the RAID on a new server that will support a large database handling real-time data processing. The system needs to have the largest available space with the best write performance. Given the following disks and configurations:
• Four 300GB SSD disks
• Eight 1.2TB 15K SAS disks
• Must include redundant OS disk
Which of the following configurations would meet all the necessary requirements for the new database server?
A. OS-Two SSD RAID 1 DB logs - Two SSD RAID 1 Data - Six 1.2TB 15K SAS RAID 5 TWO hot-spare disks 1.2TB 15K SAS
B. OS - One SSD RAID 0 DB logs - One SSD RAID 0 Data - Eight 1.2TB 15K SAS RAID 6 Two hot-spare disks SSD Disks
C. OS - Two SSD RAID 1 DB logs - Two SSD RAID 1 Data - Eight 1.2TB 15K SAS RAID 5 No hot-spare disks
D. OS - Two SSD RAID 0 DB Logs - Two SSD RAID 1 Data - Eight 1.2TB 15K SAS RAID 5 No hot-spare disks
Show Answer
Correct Answer: C
Explanation: C provides redundant OS storage with two SSDs in RAID 1, and uses all eight SAS disks in RAID 5, maximizing usable capacity (8.4 TB) while offering better write performance than RAID 6. A reserves two SAS disks as hot spares, reducing usable capacity; hot spares are not a stated requirement.
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