CompTIA CompTIA Certifications JK0-023 Questions & Answers

• Question 431:

  A network technician has confgured a new frewall with a rule to deny UDP trafc. Users have reported that they are unable to access Internet websites. The technician verifes this using the IP address of a popular website. Which of the following is the MOST likely cause of the error?

  A. Implicit deny

  B. HTTP transports over UDP

  C. Website is down

  D. DNS server failure

  Correct Answer: A

• Question 432:

  A network technician is setng up a wireless access point that would only allow a certain laptop to be able to access the WAP. By using ACLf which of the following would be fltered to ensure only the authoriied laptop can access the WAP?

  A. NetBIOS name fltering

  B. IP address fltering

  C. MAC address fltering

  D. Computer name fltering

  Correct Answer: C

• Question 433:

  A network administrator is looking to implement a soluton allowing users to utliie a common password to access most network resources for an organiiaton. Which of the following would BEST provide this functonality?

  A. RADIUS

  B. Single sign on

  C. Multfactor authentcaton

  D. Two-factor authentcaton

  Correct Answer: B

• Question 434:

  The security administrator needs to restrict specifc devices from connectng to certain WAPs. Which of the following security measures would BEST fulfll this need?

  A. WAP placement

  B. MAC address fltering

  C. Content fltering

  D. Encrypton type and strength

  Correct Answer: B

• Question 435:

  A user is connectng to the Internet at an airport through an ad-hoc connecton. Which of the following is the MOST likely security threat?

  A. Man-in-the-middle

  B. Social engineering

  C. Phishing

  D. DoS

  Correct Answer: A

• Question 436:

  A network administrator is performing a penetraton test on the WPA2 wireless network. Which of the following can be used to fnd the key?

  A. DoS

  B. Bufer overfow

  C. Dictonary fle

  D. SQL injecton

  Correct Answer: C

• Question 437:

  A system administrator is implementng an IDS on the database server to see who is trying to access the server. The administrator relies on the sofware provider for what to detect. Which of the following would MOST likely be installed?

  A. Behavior based IDS

  B. Network based IDS

  C. Signature based IDS

  D. Honeypot

  Correct Answer: C

• Question 438:

  A technician is troubleshootng authentcaton issues on a server. It turns out the clock on the server was 72 minutes behind. Setng the clock to the correct tme fxed the issue. Given the scenariof which of the following authentcaton methods was being used?

  A. Kerberos

  B. CHAP

  C. TACACS+

  D. RADIUS

  Correct Answer: A

• Question 439:

  Which of the following will BEST block a host from accessing the LAN on a network using statc IP addresses?

  A. IP fltering

  B. Port fltering

  C. MAC address fltering

  D. DHCP lease

  Correct Answer: A

• Question 440:

  Which of the following uses SSL encrypton?

  A. SMTP

  B. FTP

  C. HTTPS

  D. SNMP

  Correct Answer: C