CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 41:

  A MAC address is a part of which of the following OSI model layers?

  A. Network
  B. Data Link
  C. Physical
  D. Transport
  B. Data Link

• Question 42:

  A technician, Joe, visits a site that has reported a network down emergency. He immediately reboots the switches and the router since the network is down. Which of the following network troubleshooting methodology steps should Joe have performed FIRST?

  A. Determine if anything has changed
  B. Once a theory is confirmed determine the next step is to resolve the problem
  C. Implement the solution or escalate as necessary
  D. Question the obvious
  A. Determine if anything has changed

• Question 43:

  Which of the following attacks is spread by attaching themselves to files?

  A. Worms
  B. Botnet
  C. DDoS
  D. FTP bounce
  A. Worms

• Question 44:

  A technician has been given the task to install a wireless network in a user's home. Which of the following should the technician consider when implementing the network? (Select TWO).

  A. That there is strong encryption enabled and configured on the access point.
  B. The user's home network has a correctly completed WHOIS entry.
  C. The access point is broadcasting the SSID based upon manufacturer's standards.
  D. There are no conflicts of channels in use by neighboring wireless networks.
  E. There are redundant internal DNS names set in the access point's settings.
  F. That the access point's MAC address is properly set in its configuration settings.
  A. That there is strong encryption enabled and configured on the access point.
  D. There are no conflicts of channels in use by neighboring wireless networks.

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  Strong encryption is required to keep the user's internet safe and secure so as to avoid misuse of the internet connection and to ensure that channel conflicts are not there so that the signals do not compete with each other and user start to face intermittent connection.

• Question 45:

  A technician has traced a POTS line to a 110 block. Which of the following devices would the technician MOST likely use to see if the line carries a dial tone?

  A. Toner Probe
  B. Punch Down Tool
  C. Protocol Analyzer
  D. Butt Set
  D. Butt Set

• Question 46:

  Which of the following preventative measures would BEST secure a web server from being port scanned by attackers publicly?

  A. Content filter
  B. Proxy server
  C. ACL implicit allow
  D. Firewall
  D. Firewall

• Question 47:

  Which of the following should be used when throughput to the destination network is a priority?

  A. MTU
  B. Hop count
  C. Reliability of the path
  D. Bandwidth
  D. Bandwidth

• Question 48:

  A user authenticated to more than one website using their same credentials is an example of:

  A. Multifactor authentication
  B. User access control
  C. Two-factor authentication
  D. Single sign-on
  D. Single sign-on

• Question 49:

  Which of the following protocols resolves IP addresses to MAC addresses?

  A. DNS
  B. ARP
  C. RARP
  D. NTP
  B. ARP

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  ARP is used to convert an IP address to a physical address such as an Ethernet address. ARP has been implemented with many combinations of network and data link layer technologies, such as IPv4, Chaosnet, DECnet and Xerox PARC Universal Packet (PUP) using IEEE 802 standards, FDDI, X.25, Frame Relay and Asynchronous Transfer Mode (ATM). IPv4 over IEEE 802.3 and IEEE 802.11 is the most common case.

• Question 50:

  An administrator would like to provide outside access to the company web server and separate the traffic from the local network. Which of the following would the administrator use to accomplish this?

  A. Network Address Translation
  B. Stateful Inspection
  C. Port Address Translation
  D. Demilitarized Zone
  D. Demilitarized Zone