CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 611:

  Which of the following connectors is used for coaxial copper cable?

  A. BNC
  B. DB-9
  C. RJ-11
  D. ST
  A. BNC

• Question 612:

  A user does not have network connectivity. While testing the cable the technician receives the below reading on the cable tester: 1-----------1 2-----------2 3-----------3 4-----------4 5-----------5 6-----------6 7-----------7 8-----------8 Which of the following should the technician do NEXT?

  A. Cable is a crossover, continue troubleshooting
  B. Pin 3 is not used for data, continue troubleshooting
  C. Pin 3 is not used for data, replace the NIC
  D. Redo the cable's connectors
  D. Redo the cable's connectors

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  Incomplete/Incorrect Question.

• Question 613:

  A network is having problems with traffic flowing to several critical websites that are used for necessary company work. Which of the following appliances would BEST handle network traffic to increase network performance?

  A. Caching engine
  B. Traffic shaper
  C. Network based firewall
  D. Packet sniffer
  B. Traffic shaper

• Question 614:

  After a new firewall is installed, users report that they do not have connectivity to the Internet. The output of the ipconfig command shows an IP address of 169.254.0.101. Which of the following ports would need to be opened on the firewall to allow the users to obtain an IP address? (Select TWO).

  A. UDP 53
  B. UDP 67
  C. UDP 68
  D. TCP 53
  E. TCP 67
  F. TCP 68
  B. UDP 67
  C. UDP 68

• Question 615:

  Which of the following types of connectors is used with a CAT6 Ethernet cable?

  A. RJ-45
  B. BNC
  C. RJ-11
  D. DB-9
  A. RJ-45

• Question 616:

  Which of the following network access security methods ensures communication occurs over a secured, encrypted channel, even if the data uses the Internet?

  A. MAC filtering
  B. RAS
  C. SSL VPN
  D. L2TP
  C. SSL VPN

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  SSL VPN consists of one or more VPN devices to which the user connects by using his Web browser. The traffic between the Web browser and the SSL VPN device is encrypted with the SSL protocol or its successor, the Transport Layer Security (TLS) protocol.

• Question 617:

  A user reports intermittent network connectivity. Which of the following should a technician configure on the managed switch to help troubleshoot this issue?

  A. SMTP
  B. SNTP
  C. SNMP
  D. SNAT
  C. SNMP

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  SNMP, which is widely used in local area networks (LANs), lets you monitor network nodes from a management host. You can monitor network devices such as servers, workstations, printers, routers, bridges, and hubs, as well as services such as Dynamic Host Configuration Protocol (DHCP) or Windows Internet Name Service (WINS).

• Question 618:

  A computer has lost network connectivity. The network technician determines the network cable and the cable drop are both good. Which of the following would the technician use to test the computer's NIC?

  A. Cable certifier
  B. Throughput tester
  C. Loopback plug
  D. Multimeter
  C. Loopback plug

• Question 619:

  A network technician is concerned that an attacker is attempting to penetrate the network, and wants to set a rule on the firewall to prevent the attacker from learning which IP addresses are valid on the network. Which of the following protocols needs to be denied?

  A. TCP
  B. SMTP
  C. ICMP
  D. ARP
  C. ICMP

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  The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet Protocol Suite. It is used by network devices, like routers, to send error messages indicating, for example, that a requested service is not available or that a host or router could not be reached. ICMP can also be used to relay query messages. It is assigned protocol number 1.

• Question 620:

  A CAT5e network cable run needs to be installed over fluorescent lighting arrays in an office building. Which of the following cable types would be BEST suited for such an installation?

  A. UTP
  B. Plenum
  C. Coaxial
  D. STP
  D. STP

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  Shielded twisted pair is a special kind of copper telephone wiring used in some business installations. An outer covering or shield is added to the ordinary twisted pair telephone wires; the shield functions as a ground.

  Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company. To reduce crosstalk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted around each other. Each signal on twisted pair requires both wires