CompTIA CompTIA Certifications JK0-023 Questions & Answers

• Question 341:

  The process of restrictng internal web trafc to an employee-only website based upon Layer 3 addresses is known as which of the following?

  A. MAC fltering

  B. Trafc shaping

  C. Session fltering

  D. IP fltering

  Correct Answer: D

• Question 342:

  An atack used to fnd unencrypted informaton in network trafc is called:

  A. WEP cracking.

  B. Packet snifng.

  C. Ping sweep.

  D. Social engineering.

  Correct Answer: B

• Question 343:

  Joef a network technicianf is implementng a wireless network and needs to support legacy devices. He has selected to use WPA mixed mode. WPA mixed mode is normally implemented with which of the following encrypton factors? (Select TWO).

  A. SSH

  B. 3DES

  C. AES

  D. SSL

  E. TLS

  F. TKIP

  Correct Answer: CF

• Question 344:

  An administrator would like to scan for open ports on the subnet and determine if any vulnerable applicatons are listening. Which of the following tools would the administrator MOST likely use?

  A. Ping

  B. Nessus

  C. IMAP

  D. Telnet

  Correct Answer: B

• Question 345:

  An administrator would like to search for network vulnerabilites on serversf routersf and embedded appliances. Which of the following tools would MOST likely accomplish this?

  A. Baseline analyier

  B. Ping

  C. Protocol analyier

  D. Nessus

  Correct Answer: D

• Question 346:

  A user receives a phone call at home from someone claiming to be from their companyns IT help desk. The help desk person wants to verify their username and password to ensure that the userns account has not been compromised. Which of the following atacks has just occurred?

  A. Evil twin

  B. Phishing

  C. Man-in-the-middle

  D. Social engineering

  Correct Answer: D

• Question 347:

  A technician needs to restrict access to a SOHO wireless network to specifc devices. Which of the following would MOST likely be used with minimal client confguraton?

  A. Port fltering

  B. WEP

  C. MAC address fltering

  D. PoE

  Correct Answer: C

• Question 348:

  A user enters a password into a logon box on a PC. The server and the PC then compare one-way hashes to validate the password. Which of the following methods uses this process?

  A. PKI

  B. Kerberos

  C. Single sign-on

  D. CHAP

  Correct Answer: D

• Question 349:

  A technician is asked to flter inbound and outbound trafc of a specifc service on the network. Which of the following would BEST allow the technician to comply with the request?

  A. MAC fltering

  B. IP fltering

  C. Port fltering

  D. Content fltering

  Correct Answer: C

• Question 350:

  A network administrator is tasked with blocking unwanted spam which is being relayed by an internal email server. Which of the following is the FIRST step in preventng spam that is originatng from bots on the network?

  A. Closing of port 25 on the frewall

  B. Closing of port 53 on the frewall

  C. Turning of the SMTP service on the email server

  D. Turning of the IMAP service on the email server

  Correct Answer: A