CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 251:

  A network administrator is tasked with blocking unwanted spam is being relayed by an internal email server. Which of the following is the FIRST step in preventing spam that is originating from bots on the network?

  A. Closing off port 25 on the firewall
  B. Closing off port 53 on the firewall
  C. Turning off the SMTP service on the email server
  D. Turning off the IMAP service on the email server
  A. Closing off port 25 on the firewall

• Question 252:

  The BEST way to determine the next hop of a packet is to check the:

  A. link state.
  B. routing table.
  C. routing metrics.
  D. convergence.
  B. routing table.

• Question 253:

  A small business owner is in the process of setting up a SOHO office. The office has only one connection to the Internet via a broadband cable connection. The office has four subnets that must be able to connect to the Internet. Which of the following devices would enable the owner to meet these requirements?

  A. A firewall
  B. A router
  C. A hub
  D. A Layer 2 switch
  B. A router

• Question 254:

  Which of the following allows 802.11n higher transfer speeds than the previous wireless standards?

  A. Dual frequency
  B. Enhanced encryption
  C. MIMO technology
  D. Backwards compatibility
  C. MIMO technology

• Question 255:

  When dealing with high bandwidth applications such as VoIP and VTC, which of the following network performance optimization tools should be implemented to ensure BEST performance?

  A. Fault tolerance
  B. Load balancing
  C. Caching engines
  D. QoS
  D. QoS

• Question 256:

  Enterprise IP routing policy is MOST clearly depicted in which of the following configuration management documents?

  A. Logical network diagrams
  B. Physical network diagrams
  C. Wiring schematics
  D. Group security role assignments
  A. Logical network diagrams

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  A logical network diagram illustrates the network architecture of a group of interconnected computers and other devices, such as printers, modems, switches, routers, and even mobile devices. These electronic components form the physical network that provides local area network (LAN) and wide area network (WAN) access to users. Once you know the layout and you have an idea about the packet flow then your job becomes easy and you can create an action plan to go for the implementation.

• Question 257:

  A network technician has been asked to look into a report from the IDS to determine why traffic is being sent from an internal FTP server to an external website. Which of the following tools can be used to inspect this traffic?

  A. Router firewall
  B. Ping and traceroute
  C. Throughput tester
  D. Protocol analyzer
  D. Protocol analyzer

• Question 258:

  A user wants to connect seven PCs together for a game night. Which of the following should the user install to help with this task?

  A. Media convertor
  B. Switch
  C. Firewall
  D. Bridge
  B. Switch

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  They connect multiple PCs, printers, servers and other hardware. Switches allow you to send information, such as email, and access shared resources, including printers, in a smooth, efficient, and transparent manner.

• Question 259:

  Which of the following cable types is MOST commonly used with POTS?

  A. CAT3
  B. Multimode
  C. CAT6
  D. Coaxial
  A. CAT3

• Question 260:

  Joe, a remote user, has called the helpdesk with an issue on his machine. The technician would like to remote into the machine for troubleshooting but does not know the IP address or host name. Which of the following commands can the technician ask Joe to execute to gain this information?

  A. netstat
  B. ipconfig
  C. ping
  D. traceroute
  B. ipconfig

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  As ipconfig command will give the information which is assigned to nic for communication so that technician will contact joe with his ip.