CompTIA CompTIA Certifications SK0-004 Questions & Answers

• Question 441:

  An administrator needs to install 20 new servers via PXE. Which of the following must be available on the network to complete this task?

  A. TFTP server

  B. DNS server

  C. SFTP server

  D. SCP server

  Correct Answer: A

• Question 442:

  A server is connected to a switch, and the server is experiencing erratic connectivity issues. Which of the following should be checked FIRST?

  A. Routing

  B. Speed settings

  C. Duplex settings

  D. NAT settings

  Correct Answer: C

• Question 443:

  Users report the system is running slow. The administrator walks into the server room and notices it is noisier than usual. The fans in particular seem to be very loud. Which of the following should the administrator conclude from this observation?

  A. The system is detecting excessive dust

  B. There is a power surge occurring

  C. The server may be overheating

  D. The server has a RAID set in a failed state

  Correct Answer: C

• Question 444:

  An administrator is configuring external storage that will be accessed by multiple servers via the existing Ethernet at a minimum cost. Which of the following technologies BEST meets these objectives?

  A. NFS

  B. Fibre Channel

  C. HBA fabric

  D. DAS

  Correct Answer: A

• Question 445:

  Which of the following network solutions would allow a company to connect securely to its internal network over the Internet?

  A. VMM

  B. VLAN

  C. VNC

  D. VPN

  Correct Answer: D

• Question 446:

  The systems administrator is configuring the UAC on all servers to comply with a security audit. Once completed, all systems administrators will need to provide a special user account to make administrative changes. Which of the following would the systems administrator use to prevent unauthorized changes to the servers?

  A. Implement privileged access controls

  B. Configure the servers to deny security updates

  C. Block access to other systems administrators

  D. Disable unneeded services

  Correct Answer: A

• Question 447:

  A user reports a Linux server is running slowly. Which of the following tools is an administrator MOST likely to use to check server performance?

  A. top

  B. MRTG

  C. VNC

  D. netstat

  Correct Answer: A

• Question 448:

  An administrator is working on a server with two CPUs. The administrator runs the uptime command and sees the following:

  17:52 3 days 12 users 12.0 15.2 17.2

  Several users are complaining that their user sessions are running slowly. Which of the following should the administrator do NEXT?

  A. Run ps –ef to find processes consuming excessive memory

  B. Run top to find processes with high wait states

  C. Run who –r to find which user is using excessive processing capacity

  D. Run ping –t to find users using excessive amounts of network bandwidth

  Correct Answer: B

• Question 449:

  Which of the following protocols utilize SSH and TCP over port 22 for secure communication? (Choose two.)

  A. SFTP

  B. FTP

  C. TFTP

  D. SCP

  E. FTPS

  F. SMTP

  Correct Answer: AD

• Question 450:

  A server administrator is trying to prevent database administrators from installing programs or making administrative changes to the server. Which of the following should the administrator do to prevent administrative changes on the server?

  A. Enable a policy to require user credentials when making administrative changes

  B. Enable alerts to send a message when someone tries to make changes

  C. Enable database administrators to log activities in the system logs

  D. Enable privileged access auditing in the system logs

  Correct Answer: A