CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 431:

  A user reports that they keep getting disconnected on the wireless network. After further investigation, the technician confirms that this occurs only in that user's office. Which of the following would MOST likely cause them to lose their connection?

  A. Encryption type
  B. Disabled wireless adapter
  C. SSID mismatch
  D. Interference
  D. Interference

• Question 432:

  Which of the following WAN technology types has the GREATEST latency?

  A. ISDN
  B. Fiber
  C. Satellite
  D. Cable
  C. Satellite

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  Because satellites provide a microwave radio relay technology complementary to that of communication cables. They are also used for mobile applications such as communications to ships, vehicles, planes and hand-held terminals, and for TV and radiobroadcasting.

• Question 433:

  A network administrator wishes to limit the number of potential wireless clients to 20 on a specific AP. Which of the following settings needs to be changed?

  A. The network address translation IP range.
  B. The signal strength of the router.
  C. The DCHP lease time.
  D. The number of allowable MAC addresses.
  D. The number of allowable MAC addresses.

• Question 434:

  A new technician has been tasked with implementing a QoS policy for the Network. The technician decides it would be best to monitor the information traversing the network to gain statistical information on ports and protocols utilized. Which of the following tools should the technician use to complete this objective QUICKEST?

  A. Traffic analyzer
  B. Network sniffer
  C. SNMPv3
  D. System logs
  A. Traffic analyzer

• Question 435:

  Which of the following wireless security measures, although widely implemented, does not provide strong security?

  A. IPSec
  B. WPA2
  C. MAC address filtering
  D. 802.1x
  C. MAC address filtering

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  By MAC address filtering you can only filter layer 2 traffic but in security system layer 4 and layer 4 security is also essential.

• Question 436:

  MIMO technology in the 802.11n standard provides for which of the following benefits?

  A. Channel expansion
  B. Gigabit wireless bandwidth
  C. Multipath support
  D. Channel bonding
  C. Multipath support

• Question 437:

  Which of the following defines a rack located in an office building between the main rack and other office equipment?

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

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  An intermediate distribution frame (IDF) is a distribution frame in a central office or customer premises, which cross-connects the user cable media to individual user line circuits and may serve as a distribution point for multipair cables from the main distribution frame (MDF) or combined distribution frame (CDF) to individual cables connected to equipment in areas remote from these frames. IDFs are used for telephone exchange central office, customer-premise equipment, wide area network (WAN), and local area network (LAN) environments, among others.

• Question 438:

  Which of the following port numbers is used for SNMP?

  A. 61
  B. 151
  C. 161
  D. 1611
  C. 161

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  Simple Network Management Protocol (SNMP) is an "Internet-standard protocol for managing devices on IP networks". Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks, UPSes and more. It is used mostly in network management systems to monitor network-attached devices for conditions that warrant administrative attention.

• Question 439:

  Which of the following technologies can change channel widths?

  A. 802.11a
  B. 802.11b
  C. 802.11n
  D. Bluetooth
  C. 802.11n

• Question 440:

  At which of the following layers do frames exist? (Select TWO).

  A. OSI model Data link layer
  B. TCP/IP model Network Interface layer
  C. OSI model Physical layer
  D. OSI model Network layer
  E. TCP/IP model Internet layer
  A. OSI model Data link layer
  B. TCP/IP model Network Interface layer

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  The data link layer is concerned with local delivery of frames between devices on the same LAN. Data-link frames, as these protocol data units are called, do not cross the boundaries of a local network. Inter-network routing and global addressing are higher layer functions, allowing data-link protocols to focus on local delivery, addressing, and media arbitration. In this way, the data link layer is analogous to a neighborhood traffic cop; it endeavors to arbitrate between parties contending for access to a medium, without concern for their ultimate destination.