CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 641:

  Which of the following is being described when symbols are displayed on the side of the building and/or walking path, to identify open hot-spots?

  A. Social engineering
  B. War chalking
  C. WPA cracking
  D. Packet sniffing
  B. War chalking

• Question 642:

  Which of the following can determine the last time an address lease was renewed on a network device?

  A. System log
  B. Packet sniffer
  C. Time domain reflectometer
  D. Stateful packet filter
  A. System log

• Question 643:

  An administrator wants to restrict traffic to FTP sites regardless of which PC the request comes from. Which of the following would BEST accomplish this?

  A. An IP filtering ACL
  B. A MAC filtering ACL
  C. A port filtering ACL
  D. A class matching ACL
  C. A port filtering ACL

• Question 644:

  All users on a specific network segment report losing access to the wired network. During troubleshooting, the network administrator observes link lights on the workstations. When physically reviewing each switch, the network administrator changes the switch view settings to Activity and sees that all port lights remain solid green. Which of the following is MOST likely causing this issue?

  A. STP convergence
  B. Power failure
  C. Excessive bandwidth usage
  D. Broadcast storm
  D. Broadcast storm

• Question 645:

  Which of the following should be mitigated by employing proper coding techniques when developing software?

  A. Distributed denial of service attacks
  B. Buffer overflows
  C. War driving
  D. Packet sniffing
  B. Buffer overflows

• Question 646:

  The company is setting up a new website that will be requiring a lot of interaction with external users. The website needs to be accessible both externally and internally but without allowing access to internal resources. Which of the following would MOST likely be configured on the firewall?

  A. PAT
  B. DHCP
  C. DMZ
  D. NAT
  C. DMZ

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  DMZ is a physical or logical subnetwork that contains and exposes an organization's external-facing services to a larger and untrusted network, usually the Internet. The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN); an external attacker only has access to equipment in the DMZ, rather than any other part of the network.

• Question 647:

  Which of the following can be used to limit wireless network access to a single computer?

  A. Configure PPP
  B. Packet sniffing
  C. MAC address filtering
  D. Omni-directional antennas
  C. MAC address filtering

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  Wireless access can be filtered by using the Media Access Control (MAC) addresses of the wireless devices transmitting within your wireless network. You can either permit or prevent specific wireless computers and devices access to your wireless network.

• Question 648:

  Which of the following differentiates a layer 3 switch from a layer 2 switch?

  A. Routing
  B. Bridging
  C. Switching
  D. Repeating
  A. Routing

• Question 649:

  Which of the following protocols are used to view and send mail from a local host off of a remote server? (Select TWO).

  A. TFTP
  B. SNMP
  C. POP3
  D. IMAP4
  E. SFTP
  C. POP3
  D. IMAP4

• Question 650:

  A network technician is trying to run a protocol analyzer and is instructed to record the chimney offload state of TCP. Which of the following utilities did the technician use to check this parameter with the output listed below?

  Querying active state...

  TCP Global Parameters

  Receive-Side Scaling State : enabled

  Chimney Offload State : disabled

  Receive Window Auto-Tuning Level : normal

  Add-On Congestion Control Provider : ctcp

  ECN Capability : disabled

  RFC 1323 Timestamps : disabled

  A. net
  B. netstat
  C. nbtstat
  D. netsh
  D. netsh