Core 2

A help desk team lead contacts a systems administrator because the technicians are unable to log in to a Linux server that is used to access tools. When the administrator tries to use remote desktop to log in to the server, the administrator sees the GUI is crashing. Which of the following methods can the administrator use to troubleshoot the server effectively?

• SFTP

• SSH

• VNC

• MSRA

Answer explanation

SSH is the best method for troubleshooting the server as it allows secure command-line access, enabling the administrator to diagnose issues without relying on a potentially crashing GUI.

A company wants to remove information from past users' hard drives in order to reuse the hard drives. Which of the following is the MOST secure method?

• Reinstalling Windows

• Performing a quick format

• Using disk-wiping software

• Deleting all files from command-line interface

Answer explanation

Using disk-wiping software is the most secure method as it overwrites the entire hard drive multiple times, making data recovery nearly impossible. Other methods like reinstalling Windows or formatting do not securely erase data.

A laptop user is visually impaired and requires a different cursor color. Which of the following OS utilities is used to change the color of the cursor?

• Keyboard

• Touch pad

• Ease of Access

• Display Settings

Answer explanation

The 'Ease of Access' utility in the operating system allows users to customize accessibility features, including changing the cursor color for visually impaired users, making it the correct choice.

Which of the following is the MOST important environmental concern inside a data center?

• Air Quality

• Temperature Control

• Humidity Levels

• Energy Efficiency

Answer explanation

Humidity levels are crucial in a data center as excessive moisture can damage equipment and lead to failures. Maintaining optimal humidity is essential for operational reliability, making it the most important environmental concern.

A user calls the help desk to report that none of the files on a PC will open. The user also indicates a program on the desktop is requesting payment in exchange for file access. A technician verifies the user's PC is infected with ransomware. Which of the following should the technician do FIRST?

• 
  

• Scan and remove the malware

• Schedule automated malware scans

• Quarantine the System

• Disable System restore

Answer explanation

The technician should FIRST quarantine the system to prevent further damage and data loss. This isolates the infected PC, stopping the ransomware from spreading before any malware removal or scans are performed.

A technician suspects a rootkit has been installed and needs to be removed. Which of the following would BEST resolve the issue?

• Application Updates

• Anti-Malware software

• OS reinstallation

• File Restore

Answer explanation

OS reinstallation is the best way to remove a rootkit, as it ensures all malicious components are eliminated. Other options may not fully eradicate the rootkit, which can persist and compromise system security.

A network administrator needs to ensure that sensitive data is encrypted before being transmitted over the network. Which of the following protocols would BEST achieve this?

• Telnet

• HTTPS

• HTTP

• FTP

Answer explanation

HTTPS is the best choice as it encrypts data during transmission, ensuring sensitive information is secure. In contrast, Telnet, HTTP, and FTP do not provide encryption, making them unsuitable for transmitting sensitive data.

An organization wants to ensure that all data on decommissioned hard drives is completely unrecoverable. Which of the following methods should be used?

• Low-level formatting

• Data encryption

• Physical destruction

• File deletion

Answer explanation

Physical destruction is the most effective method to ensure that data on decommissioned hard drives is completely unrecoverable, as it physically damages the drive, making data retrieval impossible.

Which of the following is the primary purpose of a firewall in a network?

• To block unauthorized access

• To store data

• To increase internet speed

• To provide Wi-Fi connectivity

Answer explanation

The primary purpose of a firewall is to block unauthorized access to a network, protecting it from potential threats and attacks. Other options like storing data or providing Wi-Fi connectivity are not its main functions.

A user is unable to log in to the network. The network uses 802.1X with EAP-TLS to authenticate on the wired network. The user has been on an extended leave and has not logged in to the computer in several months. Which of the following is causing the log-in issue?

• Expired Certificate

• OS Update Failure

• Service Not Started

• Profile Rebuild Needed

• Application Crash

Answer explanation

The user is likely facing a log-in issue due to an expired certificate. Since the network uses EAP-TLS for authentication, an expired certificate would prevent successful authentication, blocking access to the network.