CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 31:

  Which of the following protocols are used to provide accurate time to network devices?

  A. SMTP
  B. FTP
  C. TLS
  D. NTP
  D. NTP

• Question 32:

  While preparing to replace an old CAT3 cable with a CAT6 cable to implement VoIP, a facilities employee mistakenly disconnects the entire patch panel, including valid wiring to live workstations. Which of the following should an administrator use in order to connect those ports FIRST?

  A. Toner
  B. Multimeter
  C. Reflectometer
  D. Cable tester
  A. Toner

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  Toner?connects to any voice, data, or video cable to detect open/short circuits, continuity, AC/DC voltage* and dial tone* all while protecting up to 52 volt.

• Question 33:

  An office has an 802.11a access point. A technician has been asked to identify devices that are compatible with this AP. Which of the following devices is MOST likely compatible?

  A. An 802.1q SOHO router
  B. An 802.11b tablet computer
  C. An 802.11g laptop
  D. An 802.11n smartphone
  D. An 802.11n smartphone

• Question 34:

  Which of the following network topologies is MOST likely used in remote access VPN?

  A. Point to Point
  B. Bus
  C. Ring
  D. Mesh
  A. Point to Point

• Question 35:

  An administrator has added four switches to a campus network. The switch in wiring closet A is only connected to the switch in wiring closet C. The switch in wiring closet B is connected to the switch in wiring closet C as well as wiring closet D. The switch in wiring closet D is only connected to the switch in wiring closet B. Which of the following topologies is represented in this design?

  A. Ring
  B. Star
  C. Bus
  D. Mesh
  C. Bus

• Question 36:

  Which of the following can MOST likely cause intermittent connection problems with a CAT5 network cable?

  A. Cable has been looped too many times.
  B. Cable has a twist tie attached too close to the connector.
  C. Cable is too warm.
  D. Cable is run too close to a fluorescent light.
  D. Cable is run too close to a fluorescent light.

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  Cat 5 is a twisted pair cable for carrying signals. This type of cable is used in structured cabling for computer networks such as Ethernet. The cable standard provides performance of up to 100 MHz and is suitable for 10BASE-T, 100BASE-TX (Fast Ethernet), and 1000BASE-T (Gigabit Ethernet).

• Question 37:

  A network administrator tests a multimode fiber cable from end-to-end on a new link that is down and notices that the dB loss is -.09. Which of the following is the MOST likely cause?

  A. TXRX reversed
  B. dB loss too high
  C. dB loss too low
  D. Bad connectors
  A. TXRX reversed

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  Some Ethernet switches support medium dependent interface crossover (MDIX),which allows a switch port to properly configure its leads as transmit (Tx) or receive (Rx) leads. You can interconnect such switches with a straight-through cable (as opposed to a crossover cable). However, if a network device does not support MDIX, it needs an appropriate cable (that is, a crossover cable ) to allow its Tx leads to connect to the Rx leads on a connected device, and vice versa. Therefore, care must be taken when selecting cable types interconnecting network components.

• Question 38:

  A technician has been tasked with planning and implementing a new wired-only network for a small office. A hardware list has been compiled, but the technician is unsure about the final necessary item. Which of the following will BEST complete the small wired network setup?

  (1)

  1000 foot CAT6 spool

  (1)

  crimper

  (1)

  16 port gigabit switch

  (20)

  RJ-45 connectors

  (12)

  RJ-45 wall jacks

  (1)

  ____________

  A. Compression tool
  B. Punch down tool
  C. Network map
  D. Multimeter
  B. Punch down tool

• Question 39:

  Which of the following is a common connector used on a coaxial cable?

  A. RJ-45
  B. DB-25
  C. BNC
  D. LC
  C. BNC

• Question 40:

  Ann, a new user, has a workstation that has connectivity to the printer located in her department, but cannot access the Internet. The result of an ipconfig command on Ann's workstation is as follows: IP address: 192.168.0.124 Subnet Mask: 255.255.255.128 Default Gateway: 192.168.0.254 Which is MOST likely preventing the user from accessing the Internet?

  A. Duplicate IP address
  B. Incorrect gateway
  C. Incorrect VLAN
  D. Bad switch port
  B. Incorrect gateway

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  We usually give default gateway as an end device which is directly connected with ISP so in this case user has lost his connectivity with due to wrong default gateway configured.