Which of the following contains exactly four copper wires?

• RJ45

• VGA

• RJ11

• USB

Answer explanation

The correct choice is RJ11 because it contains exactly four copper wires, while the other options do not meet this requirement.

A technician replaces the video card in a user's PC. The user reports the resolution on the display seems very low, but the operating system will not let the user adjust it any higher. Which of the following steps would MOST likely fix this problem?

• Replace the user's display

• Update the PC's operating system

• Replace the video cable

• Install new video drivers

Answer explanation

Installing new video drivers would most likely fix the problem of low resolution on the display after replacing the video card.

All users have access to an application at a company. The data from the application is stored on a centralized device located on the network. Which of the following devices would MOST likely be used to store the data?

• Server

• Tape library

• External HDD

• Workstation

Answer explanation

The data from the application is stored on a centralized device located on the network, which is typically a server. Servers are commonly used to store and manage data for multiple users.

Which of the following types of network security deals with deviations from the historic connection patterns and analysis of new threats to provide effective mitigation responses?

• Behavior security

• Information Identity Management

• Unauthorized hacking

• Authorized hacking

Answer explanation

Behavior security deals with deviations from historic connection patterns and analysis of new threats to provide effective mitigation responses, making it the correct choice.

A web developer wants to ensure that a new web application is not vulnerable to brute-force attacks. Which of the following best practices is MOST useful to meet this goal?

• Input validation

• System updates

• Password lockout

• Login auditing

Answer explanation

Password lockout is the most useful practice to prevent brute-force attacks by locking out an account after multiple failed login attempts.

Which of the following is the number of bytes that is in 2KB?

• 1024

• 2048

• 20000

• 1048576

Answer explanation

2KB is equal to 2048 bytes. Therefore, the correct number of bytes in 2KB is 2048.

An enterprise WPA2 wireless network has been subjected to several attacks over the last month. Which of the following options would be the BEST to improve the network's security?

• Change the SSID

• Change the default password

• Switch to WEP security

• Create a guest network

Answer explanation

Switching to WEP security would be the best option to improve the network's security as it provides a higher level of encryption compared to WPA2, which has been compromised.

Which of the following is the BEST overall storage option for a laptop?

• USB Flash Drive

• Hard Drive

• SD Card

• SSD Drive

Answer explanation

The BEST overall storage option for a laptop is an SSD Drive due to its faster read/write speeds, durability, and reliability compared to USB Flash Drives, Hard Drives, and SD Cards.

A technician has followed all the troubleshooting methodology steps and was not able to solve the problem. What should the technician do next?

• Escalate as needed

• Confirm the root cause

• Establish a new theory

• Gather information

Answer explanation

The technician should escalate as needed because if all troubleshooting steps have been exhausted, escalating to a higher level of support is the appropriate next step.

Which of the following would be the BEST security measures to take when a network has been infected with a worm? (Choose two.)

• Update the IPS signatures

• Update the network firewall

• Update the malware definitions

• Quarantine the network

• Reset the network router

Answer explanation

The BEST security measures to take when a network has been infected with a worm are to update the IPS signatures and update the malware definitions to effectively combat the threat.