CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 491:

  A user's computer is unable to access the Internet. Which of the following utilities can a technician use to determine if DNS is working?

  A. nbstat
  B. arp
  C. nslookup
  D. ipconfig
  C. nslookup

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  nslookup is a network utility program used to obtain information about Internet servers. As its name suggests, the utility finds name server information for domains by querying DNS.

• Question 492:

  The wireless network inside a large training room has been saturated with client requests. Most of the client requests are coming from smartphones and laptops. The network technician has been tasked with increasing the performance of the wireless access point. Which of the following would BEST accomplish this?

  A. Switch the channel
  B. Change frequencies
  C. Channel bonding
  D. Increase the signal
  C. Channel bonding

• Question 493:

  Which of the following would allow a network administrator to implement a user authentication method that uses X.509 certificates?

  A. PKI
  B. Kerberos
  C. TACACS+
  D. RADIUS
  A. PKI

• Question 494:

  Joe, a network technician, is implementing a wireless network and needs to support legacy devices. He has selected to use WPA mixed mode. WPA mixed mode is normally implemented with which of the following encryption factors? (Select TWO).

  A. SSH
  B. 3DES
  C. AES
  D. SSL
  E. TLS
  F. TKIP
  C. AES
  F. TKIP

• Question 495:

  A technician is having trouble identifying a computer on a network. The technician has the IP address of the computer, but needs to find the hostname of the computer. Which of the following commands should the technician use?

  A. ipconfig /a
  B. ping -t
  C. ping -a
  D. netstat
  C. ping -a

• Question 496:

  A technician is troubleshooting a problem where data packets are being corrupted. Which of the following connectivity problems should the technician check?

  A. Attenuation
  B. Latency
  C. Crosstalk
  D. External interference
  C. Crosstalk

• Question 497:

  Which of the following network protocols is used to transport email across the Internet?

  A. NTP
  B. SSH
  C. SMTP
  D. SNMP
  C. SMTP

• Question 498:

  Which of the following is needed when using WPA2-Enterprise wireless encryption?

  A. TFTP
  B. RADIUS
  C. LDAP
  D. IPSec
  B. RADIUS

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  The WPA2 standard supports two different authentication mechanisms: one using standard RADIUS servers and the other with a shared key, similar to how WEP works.

• Question 499:

  A technician needs to setup an Internet connection for a small office. There are five users that need the ability to use email and do online research. The office manager wants the connection to be always on and be as inexpensive as possible. Which of the following would BEST fit the needs of this office?

  A. Broadband
  B. T1
  C. Frame Relay
  D. Satellite
  A. Broadband

• Question 500:

  Which of the following protocols is MOST commonly used for the transfer of router configuration files?

  A. SSL
  B. TFTP
  C. DNS
  D. IMAP
  B. TFTP

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  Trivial File Transfer Protocol (TFTP) is a file transfer protocol notable for its simplicity. It is generally used for automated transfer of configuration or boot files between machines in a local environment. Compared to FTP, TFTP is extremely limited, providing no authentication, and is rarely used interactively by a user.