CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 271:

  Which of the following provides secure access to a network device?

  A. SNMPv2
  B. FTP
  C. RSH
  D. SSH
  D. SSH

  ---

  Secure Shell (SSH) 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 that connects, via a secure channel over an insecure network, a server and a client (running SSH server and SSH client programs, respectively).

• Question 272:

  A network technician is troubleshooting signal problems with certain WAPs in an office and finds consistently high ping times across the units. Such an issue is called which of the following?

  A. Latency
  B. Attenuation
  C. Crosstalk
  D. Frequency hopping
  A. Latency

  ---

  During the high ping time users are using most of the bandwidth that causes latency so signal strength get affected by this.

• Question 273:

  A technician is installing a PoE switch for VoIP phones. Which of the following is the technician MOST likely going to configure on the switch?

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

• Question 274:

  The network administrator just upgraded all of the WAPs to new ones with 2.4 GHz b/g/n support. The new WAPs reuse the same location and channel as the previous one and with no new external interference detected. However, performance issues are now occurring that did not exist before. Which of the following would correct the issue?

  A. Configure Wi-Fi Multimedia support
  B. Use only 20 MHz channel bandwidth
  C. Enable band steering to use 802.11n
  D. Configure Quality of Service
  B. Use only 20 MHz channel bandwidth

• Question 275:

  A multi-layer switch operates at which of the following OSI layers?

  A. Layers 1 and 5
  B. Layers 2 and 3
  C. Layers 4 and 5
  D. Layers 5 and 6
  B. Layers 2 and 3

• Question 276:

  At which of the following locations does the responsibility of a Telco provider cease?

  A. IDF
  B. CSU
  C. Demarc
  D. MDF
  C. Demarc

• Question 277:

  Which of the following OSI layers allows users to access network services such as file sharing?

  A. Layer 1
  B. Layer 3
  C. Layer 4
  D. Layer 7
  D. Layer 7

  ---

  Basically File Transfer protocol (FTP) is responsible for file transfer which lies under Application layer (Layer 7) of OSI layers.

• Question 278:

  A small company is looking to install a wireless network to enable its relatively old fleet of laptops to have limited internet access internally. The technician on the project knows that the units do not support modern encryption standards. If backwards compatibility is the greatest concern, which of the following is the MOST appropriate wireless security type to choose?

  A. WEP
  B. WPS
  C. WPA
  D. WPA2
  A. WEP

• Question 279:

  Various desktop computers are not getting a link light even though the patch cables were replaced. Cables on a 110-block patch panel are suspected to be causing the issues. Which of the following hardware tools would MOST likely be used to troubleshoot and resolve the issue? (Select TWO).

  A. Cable certifier
  B. Ping command
  C. Punch down tool
  D. Crimper
  E. Toner probe
  A. Cable certifier
  C. Punch down tool

• Question 280:

  Which of the following network devices is meant to actively protect against network treats and can disable connections to stop malicious traffic if necessary?

  A. DMZ
  B. IPS
  C. SSL VPN
  D. Layer 3 switch
  B. IPS