CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 801:

  Which of the following can be used to compromise a WPA encrypted wireless network when the rainbow table does not contain the key?

  A. Evil twin
  B. War chalking
  C. Buffer overflow
  D. Virus
  A. Evil twin

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  An evil twin is the wireless version of the phishing scam. An attacker fools wireless users into connecting a laptop or mobile phone to a tainted hotspot by posing as a legitimate provider.This type of evil twin attack may be used to steal the passwords of unsuspecting users by either snooping the communication link or by phishing, which involves setting up a fraudulent web site and luring people there.

• Question 802:

  A technician is trying to add another switch to the network with multiple VLANs. Which of the following should the technician configure on the interface to allow multiple VLANs?

  A. Mirroring
  B. Trunking
  C. Authenticating
  D. Bonding
  B. Trunking

• Question 803:

  Which of the following is MOST commonly used with a fiber-optic network backbone?

  A. 100BaseFX
  B. 100BaseT
  C. 100BaseTX
  D. 1000BaseCX
  A. 100BaseFX

• Question 804:

  Which of the following describes blocking traffic based upon the Layer 3 sources address of the traffic?

  A. Port filtering
  B. IP filtering
  C. MAC filtering
  D. Application filtering
  B. IP filtering

• Question 805:

  Which of the following describes a single computer that is setup specifically to lure hackers into revealing their methods, and preventing real attacks on the production network?

  A. Evil twin
  B. Honeypot
  C. DMZ
  D. Honeynet
  B. Honeypot

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  In computer terminology, a honeypot is a trap set to detect, deflect, or in some manner counteract attempts at unauthorized use of information systems.

• Question 806:

  A technician enters a username and password once and can access multiple databases without being prompted to reenter their password. This is an example of which of the following?

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

• Question 807:

  Which of the following network protocols is used for a secure command line interface for management of network devices?

  A. SSH
  B. TELNET
  C. IGMP
  D. HTTP
  A. SSH

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  Secure Shell is a cryptographic network protocol for secure data communication, remote command-line login, remote command execution, and other secure network services between two networked computers.

• Question 808:

  Which of the following switches is used with ARP to display the cache entry for a specific IP address?

  A. -a
  B. -d
  C. -g
  D. -s
  A. -a

• Question 809:

  Which of the following is a packet switching WAN technology?

  A. Frame relay
  B. T1
  C. Asynchronous transfer mode
  D. ISDN
  A. Frame relay

• Question 810:

  Which of the following is associated with DNS reverse lookup zones?

  A. CNAME
  B. TXT
  C. PTR
  D. MX
  C. PTR