CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 471:

  A consultant is installing new WAPs for an office using wall mounts. Which of the following is the BEST location for the new boxes for signal strength and coverage?

  A. Above the suspended ceiling with antennas positioned upward.
  B. Close to the floor level to allow the signal to traverse the floor laterally.
  C. Close to the suspended ceiling, but not above.
  D. Above the suspended ceiling with antennas positioned downward.
  C. Close to the suspended ceiling, but not above.

• Question 472:

  Which of the following WAN technologies uses an analog phone line to transmit data?

  A. LTE
  B. DSL
  C. Satellite
  D. Cable
  B. DSL

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  DSL is a high-speed Internet service like cable Internet. DSL provides high- speed networking over ordinary phone lines using broadband modem technology. DSL technology allows Internet and telephone service to work over the same phone line without requiring customers to disconnect either their voice or Internet connections.

• Question 473:

  During business hours, users at a small office are reporting that all of a sudden they are unable to reach any host on the Internet, but they can still use the network shares to transfer files within the office. Which of the following is the MOST likely cause of the outage?

  A. Wrong gateway
  B. Failed router
  C. Bad switch module
  D. Incorrect VLAN
  B. Failed router

• Question 474:

  Which of the following cable types is MOST commonly used with POTS?

  A. CAT3
  B. Multimode
  C. CAT6
  D. Coaxial
  A. CAT3

• Question 475:

  A technician is reviewing the following aggregated information on a server to determine the cause of a user's connection problem:

  

  Which of the following is the technician reviewing?

  A. Syslog server logs
  B. Application logs
  C. Network sniffer logs
  D. SNMPv2 queries
  A. Syslog server logs

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  Syslog server logs are the logs that are saved on a system whenever an instance happens of the wireless device. Reviewing the logs can help him understand the behavior of the WAP as well as the client.

• Question 476:

  Which of the following is considered a routing metric?

  A. Hop count
  B. QoS
  C. Subnet size
  D. IP address
  A. Hop count

• Question 477:

  Enterprise IP routing policy is MOST clearly depicted in which of the following configuration management documents?

  A. Logical network diagrams
  B. Physical network diagrams
  C. Wiring schematics
  D. Group security role assignments
  A. Logical network diagrams

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  A logical network diagram illustrates the network architecture of a group of interconnected computers and other devices, such as printers, modems, switches, routers, and even mobile devices. These electronic components form the physical network that provides local area network (LAN) and wide area network (WAN) access to users. Once you know the layout and you have an idea about the packet flow then your job becomes easy and you can create an action plan to go for the implementation.

• Question 478:

  An administrator would like to search for network vulnerabilities on servers, routers, and embedded appliances. Which of the following tools would MOST likely accomplish this?

  A. Baseline analyzer
  B. Ping
  C. Protocol analyzer
  D. Nessus
  D. Nessus

• Question 479:

  An administrator notices SMTP traffic is being blocked by the company firewall. Which of the following ports should be opened?

  A. 25
  B. 53
  C. 110
  D. 443
  A. 25

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  SMTP is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks. SMTP uses TCP port 25.

• Question 480:

  A user is trying to connect to the wireless network in the office but is unable to establish a consistent connection. The computer alternates connecting between several similarly configured access points. Which of the following would be the BEST way to address this issues?

  A. Adjust the signal strength of the access points with minimal coverage overlap.
  B. Increase the pool in each of the access points to avoid running out of IPs.
  C. Configure each access point to use a different method of encryption than the others.
  D. Reconfigure each of the access points so that they broadcast different SSIDs.
  A. Adjust the signal strength of the access points with minimal coverage overlap.