CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 141:

  A network administrator has decided to tighten company security after a recent data breach. The new scheme calls for a strong 10 character password, a special 4 digit pin code, and a one-time use dynamic token that is accessed via a

  smartphone application.

  Which of the following is being implemented?

  A. Two-factor authentication
  B. Biometric security
  C. Multi-factor authentication
  D. Single factor authentication
  A. Two-factor authentication

• Question 142:

  A router operates at which of the following layers of the OSI model?

  A. Layer 2
  B. Layer 3
  C. Layer 4
  D. Layer 5
  B. Layer 3

• Question 143:

  Based on the packet capture below, which of the following services is the client requesting?

  08:30:54.982378192.168.50.42.8329 > 192.168.50.20.53:

  S 32859235:32859235(0) win 8096

  08:30:55.001378192.168.50.20.53 > 192.168.50.42.8329:

  S 31845637: 31845637(0) ack 32859236 win 8096

  08:30:55.027578192.168.50.42.8329 > 192.168.50.51.53:

  ack 1 win 8096

  A. ARP
  B. SMTP
  C. DHCP
  D. DNS
  D. DNS

• Question 144:

  Which of the following is the reason why a company's network may contain a DHCP server?

  A. To assign IP addresses to devices on the network
  B. To convert IP addresses to fully qualified domain names
  C. To provide POP3 and IMAP email functionality
  D. To allow secure remote access
  A. To assign IP addresses to devices on the network

• Question 145:

  Which of the following is true of a client/server topology?

  A. Virtual servers are used to stream data to other remote servers
  B. Servers are used to connect to centralized clients
  C. Remote clients connect to a centralized server
  D. Remote clients connect to each other via a virtual server
  C. Remote clients connect to a centralized server

• Question 146:

  Which of the following protocols is the BEST choice for retrieving email on multiple devices?

  A. IMAP4
  B. SMTP
  C. FTP
  D. SNMPv3
  A. IMAP4

• Question 147:

  A technician is troubleshooting a wireless network that was setup previously. The network is a hybrid of 802.11g and 802.11n WAPs. Users are not able to view or connect to the 802.11n WAPs. Which of the following is MOST likely the cause?

  A. The 802.11g WAPs are not setup for backwards compatibility.
  B. The 802.11n WAPs are using a 2.4 GHz frequency channel.
  C. The 802.11n WAPs are using a 5 GHz frequency channel.
  D. The 802.11g WAPs all have disabled SSID broadcast.
  C. The 802.11n WAPs are using a 5 GHz frequency channel.

• Question 148:

  Which of the following is used to explain guidelines for users while using network resources?

  A. Network cut sheet
  B. Baselines
  C. Acceptable use policy
  D. Regulations
  C. Acceptable use policy

• Question 149:

  A technician is setting up a wireless access point and wants to keep it as secure as possible. Which of the following settings should be configured for security purposes? (Select TWO).

  A. Channel
  B. Encryption
  C. Diversity
  D. SSID broadcast
  E. Frequency
  B. Encryption
  D. SSID broadcast

• Question 150:

  A technician working for a company with a wireless network named WirelessA notices a second wireless network named WirelessB. WirelessB is MOST likely a:

  A. man-in-the-middle attack
  B. rogue access point
  C. evil twin
  D. packet sniffer
  B. rogue access point

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  A rogue access point is a wireless access point that has either been installed on a secure company network without explicit authorization from a local network administrator, or has been created to allow a hacker to conduct a man-in-themiddle attack.