CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 471:

  Which of the following wireless standards provide speeds up to 150Mbps?

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

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  802.11n builds upon previous 802.11 standards by adding multiple-input multiple-output (MIMO). The additional transmitter and receiver antennas allow for increased data throughput through spatial multiplexing and increased range by exploiting the spatial diversity through coding schemes like Alamouti coding. The speed is 150 Mbit/s (even 250 Mbit/s in PHY level)

• Question 472:

  A company has a total of two public IP addresses and must allow 150 devices to connect to the Internet at the same time. Which of the following is the BEST option for connectivity?

  A. VLSM
  B. NAT
  C. CIDR
  D. PAT
  D. PAT

• Question 473:

  Which of the following protocols would the network administrator use to protect login credentials when accessing a router terminal session?

  A. SCP
  B. SNMPv3
  C. SSL
  D. SSH
  D. SSH

• Question 474:

  Which of the following contains the SYN and ACK flags?

  A. UDP header
  B. IP header
  C. TCP header
  D. ICMP header
  C. TCP header

• Question 475:

  The term virtual switch refers to which of the following?

  A. A switch that has not yet been implemented in the local network
  B. Migrating an entire environment to virtualization
  C. A computer component that controls environmental elements, such as lights and thermometers
  D. A logical, rather than a physical switch device
  D. A logical, rather than a physical switch device

• Question 476:

  A VoIP system running over a wireless network link is continually being reported as choppy. Which of the following is the cause of this issue?

  A. Frequency
  B. Latency
  C. Interference
  D. Encryption type
  B. Latency

• Question 477:

  During a blizzard, a technician decides to work from home but is unable to connect to the company's network. Which of the following is MOST likely taking place at the office?

  A. Switching loop
  B. Wrong DNS
  C. Power failure
  D. Duplicate IP address
  C. Power failure

• Question 478:

  A technician is terminating a new run of network cables to a 110 block. Which of the following tools would the technician use?

  A. Loopback plug
  B. Crimper tool
  C. Punch down tool
  D. Cable tester
  C. Punch down tool

• Question 479:

  A user wants to send information and ensure that it was not modified during transmission. Which of the following should be implemented?

  A. MAC filtering
  B. Digital signatures
  C. MS-CHAP
  D. CHAP
  B. Digital signatures

• Question 480:

  Users have reported issues accessing an Internet website. The network technician wants to verify network layer connectivity. Which of the following tools can provide the verification?

  A. ping
  B. netstat
  C. route
  D. arp
  A. ping

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  Ping is a computer network administration utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer.