CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 791:

  Which of the following layers of the OSI model is responsible for stripping the TCP port information before sending the packet up to the next layer?

  A. 2
  B. 3
  C. 4
  D. 5
  C. 4

• Question 792:

  The company's main server is using 98% of its available resources and Joe needs to evenly distribute the work to another server using which of the following?

  A. VPN concentrator
  B. Content filter
  C. Proxy server
  D. Load balancer
  D. Load balancer

• Question 793:

  Which of the following wireless standards would BEST allow a company to utilize new and old devices on the 5GHz spectrum while allowing for the highest possible speeds?

  A. A
  B. B
  C. G
  D. N
  D. N

  ---

  802.11n is an amendment which improves upon the previous 802.11 standards by adding multiple-input multiple-output antennas (MIMO). 802.11n operates on both the 2.4 GHz and the lesser used 5 GHz bands

• Question 794:

  Which of the following uses distance vector algorithms to determine the BEST network route to a destination address?

  A. IS-IS
  B. OSPF
  C. BGP
  D. RIP
  D. RIP

  ---

  Here the term distance vector refers to the fact that the protocol manipulates vectors (arrays) of distances to other nodes in the network

• Question 795:

  Which of the following network media connectors can use a MAXIMUM of two copper wire pairs?

  A. F-connector
  B. RJ-11
  C. MTRJ
  D. RJ-45
  B. RJ-11

• Question 796:

  A technician is installing an 802.11n network. The technician is using a laptop that can connect at a maximum speed of 11 Mbps. The technician has configured the 802.11n network correctly but thinks it could be the type of WLAN card used on the laptop. Which of the following wireless standards is the WLAN card MOST likely using?

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

• Question 797:

  A technician is looking to create a new network cable. Which of the following tools would assist in creating and testing a cable properly? (Select TWO).

  A. Toner probe
  B. Cable certifier
  C. Butt set
  D. Crimper
  E. Network analyzer
  B. Cable certifier
  D. Crimper

• Question 798:

  A customer has requested a solution using multiple WAPs for wireless access. Which of the following should be different on each WAP to prevent wireless problems?

  A. Firewalls
  B. VLANs
  C. Channels
  D. Antenna types
  C. Channels

  ---

  Protocol requires 16.25 to 22 MHz of channel separation (as shown above), adjacent channels overlap and will interfere with each other.

  Channels 1, 6, and 11 are the most common channels to choose, and most routers will use one of them as the default channel--but the general idea is to be as far away from everybody else as you can.

• Question 799:

  At which layer of the TCP/IP model would cabling exist?

  A. Network Interface
  B. Internet
  C. Application
  D. Transport
  A. Network Interface

• Question 800:

  Which of the following is a terminal emulator used to manage a network device?

  A. VPN
  B. IDS
  C. PuTTY
  D. IPS
  C. PuTTY

  ---

  PuTTY is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet and rlogin.