1. A network administrator is troubleshooting a notebook that is not loading the local Windows 10 operating system. All the computers inside the company are installed using UEFI mode selected. The message on the screen shows a failed attempt to connect to a PXE server. When requested, the end user reported trying to improve the computer-s speed by changing some BIOS configurations randomly. Which of the following should the network administrator check FIRST inside BIOS?

A) A. C-states should be configured to 2
B) B. Secure Boot should be enabled
C) C. Wake-on-LAN should be unchecked
D) D. The PXE server address should be set



2. A customer recently moved a high-end graphics card from a known-working computer to a different computer. The computer works without issue when viewing email and web pages or when using certain applications. However, when a game with high-end graphics requirements is opened, the program will run for a few minutes before the computer shuts down. Which of the following is MOST likely causing the problem?

A) A. Power supply wattage
B) B. Video RAM
C) C. CPU frequency
D) D. Monitor resolution



3. An ISP has notified a SOHO user of a usage increase on the user-s network. The user is concerned the WiFi network is being utilized by unauthorized users. Which of the following would minimize the unauthorized use of the WiFi network?

A) A. Implement MAC filtering
B) B. Enable NAT
C) C. Create a network DMZ
D) D. Upgrade the encryption standards



4. Which of the following services provides the ability to resolve UNC to appropriate IP addresses?

A) A. DNS
B) B. DHCP
C) C. Proxy
D) D. Web server



5. A technician is troubleshooting network connectivity issues after a new wireless router was installed in an office. Users who connect to the new router are unable to access LAN resources. Which of the following is the MOST likely cause of the issue?

A) A. There are conflicting DHCP servers on the network
B) B. There are conflicting ARP records
C) C. There are conflicting gateways on the network
D) D. There are conflicting IP protocols