CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 501:

  A company has been given a Class C address to be utilized for all devices. The company has several subnets and the largest subnet has 15 hosts. Which of the following represents the MINIMUM CIDR notation of this subnet mask?

  A. /26
  B. /27
  C. /28
  D. /29
  B. /27

• Question 502:

  Joe, a network technician, is asked to install a couple new WAP's inside a back warehouse that was added to a main warehouse facility that already has complete wireless coverage on both the 2.4GHz and 5GHz frequencies. Joe already has a complete wireless heat map of the main warehouse. Which of the following is the first step that Joe should do before choosing which WAP's to use?

  A. Conduct a wireless survey of the back warehouse.
  B. Ask the vendor that provided the WAP's for the main warehouse for recommendations.
  C. Ask the systems administrator which WAP's are preferred.
  D. Only order WAP's that support 5GHz channels.
  A. Conduct a wireless survey of the back warehouse.

• Question 503:

  A company has just installed a new network switch for an expanding department. The company is also piloting the use of a VoIP phone system for this department. Which of the following should be enabled on the new network switch?

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

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  Qos provide the voice packet priority over the data packets to avoid jitter and delay.

• Question 504:

  Which of the following methods would be implemented to correct a network slowdown caused by excessive video streaming?

  A. Traffic shaping
  B. Proxy server
  C. VPN concentrator
  D. High availability
  A. Traffic shaping

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  As traffic shaping will prioritize the video packets over another packets and then video packets will travel fast on bandwidth.

• Question 505:

  Which of the following performance optimization techniques would be MOST beneficial for a network-wide VoIP setup? (Select TWO).

  A. Proxy server
  B. Traffic shaping
  C. Caching engines
  D. Load balancing
  E. Quality of service
  B. Traffic shaping
  E. Quality of service

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  Traffic shaping retains excess packets in a queue and then schedules the excess for later transmission over increments of time. The result of traffic shaping is a smoothed packet output rate. QoS (Quality of Service) is a major issue in VOIP implementations. The issue is how to guarantee that packet traffic for a voice or other media connection will not be delayed or dropped due interference from other lower priority traffic.

  Things to consider are: Latency: Delay for packet delivery Jitter: Variations in delay of packet delivery Packet loss: Too much traffic in the network causes the network to drop packets Burstiness of Loss and Jitter: Loss and Discards (due to jitter) tend to occur in bursts

• Question 506:

  Joe, a user, has a computer that has a link light on his network interface card (NIC); however, Joe is unable to access the Internet. Which of the following is the cause of this issue?

  A. Faulty GBIC
  B. Faulty SFP
  C. Cable is a crossover
  D. VLAN mismatch
  D. VLAN mismatch

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  As user has link light on NIC that means he has connectivity with switch so he need to check his vlan assignment.

• Question 507:

  A technician wants to send management information from devices on the network to a central server and have it encrypted in the process. Which of the following protocols can be used?

  A. SNMPv3
  B. FTP
  C. TFTP
  D. Telnet
  A. SNMPv3

• Question 508:

  Which of the following uses types and codes rather than ports?

  A. EIGRP
  B. ICMP
  C. UDP
  D. IPv6
  B. ICMP

• Question 509:

  A small office needs to connect one new system to their network in a distant office, but does not have the resources to install a new Ethernet wall jack, and does not want to use wireless. Which of the following is a simple, cost effective option for providing connectivity?

  A. SONET
  B. Multimode fiber
  C. 802.11n
  D. Broadband over Power Line
  D. Broadband over Power Line

• Question 510:

  A company needs to find a way to best route latency-sensitive traffic appropriately on an already congested network. Which of the following would be BEST suited for this purpose?

  A. QoS
  B. PPPoE
  C. RADIUS
  D. VPN
  A. QoS