CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 241:

  Which of the following security appliances are used to only identify traffic on individual systems?

  A. Host based IPS
  B. Application based IPS
  C. Network based IDS
  D. Host based IDS
  D. Host based IDS

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  A host-based intrusion detection system (HIDS) is an intrusion detection system that monitors and analyzes the internals of a computing system as well as the network packets on its network interfaces.

• Question 242:

  Which of the following performance benefits would multiple domain controllers BEST provide?

  A. Fault tolerance
  B. Caching engine
  C. Proxy server
  D. Quality of service
  A. Fault tolerance

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  Fault-tolerant design is a design that enables a system to continue its intended operation, possibly at a reduced level, rather than failing completely, when some part of the system fails. The term is most commonly used to describe computer-based systems designed to continue more or less fully operational with, perhaps, a reduction in throughput or an increase in response time in the event of some partial failure

• Question 243:

  Spanning-Tree Protocol is used with which of the following network devices?

  A. Router
  B. NIC
  C. Switch
  D. DHCP server
  C. Switch

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  Spanning Tree Protocol (STP) is a Layer 2 protocol that runs on bridges and switches. The specification for STP is IEEE 802.1D. The main purpose of STP is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.

• Question 244:

  Which of the following connectors are MOST commonly used on a POTS line?

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

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  The six-position plug and jack commonly used for telephone line connections may be used for RJ11, RJ14 or even RJ25, all of which are actually names of interface standards that use this physical connector. The RJ11 standard dictates a 2-wire connection, while RJ14 uses a 4-wire configuration, and RJ25 uses all six wires. The RJ abbreviations, though, only pertain to the wiring of the jack (hence the name "registered jack"); it is commonplace but not strictly correct to refer to an unwired plug connector by any of these names. Typically you'll find the RJ-11 and RJ-14 on your Plain Old Telephone Service (POTS)

• Question 245:

  A network technician suspects that there is an issue with the routing table on a Windows- based server. Which of the following commands will enable the technician to validate this hypothesis?

  A. route print
  B. route
  C. ipconfig
  D. tracert
  A. route print

• Question 246:

  Which of the following is the difference between 802.11b and 802.11g?

  A. Distance
  B. Frequency
  C. Speed
  D. Transmission power
  C. Speed

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  802.11b has a maximum speed of 11Mbps whereas 802.11g has a speed of 54Mbps.

• Question 247:

  An administrator would like to inspect all traffic flowing over the SMTP protocol on a given network. Which of the following tools would accomplish this? (Select TWO).

  A. Packet sniffer
  B. Honeypot
  C. Port mirroring
  D. IPS
  E. Port scanner
  F. IDS
  A. Packet sniffer
  C. Port mirroring

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  (IPS), also known as intrusion detection and prevention systems (IDPS), are network security appliances that monitor network and/or system activities for malicious activity. The main functions of intrusion prevention systems are to identify malicious activity, log information about this activity, attempt to block/stop it, and report it. And we use packet sniffer to detect the types of packet.

• Question 248:

  Which of the following IP address/subnet mask combinations represent a broadcast address? (Select TWO).

  A. 200.200.100.0/28
  B. 200.200.100.32/27
  C. 200.200.100.63/27
  D. 200.200.100.79/27
  E. 200.200.100.95/27
  F. 200.200.100.254/30
  C. 200.200.100.63/27
  E. 200.200.100.95/27

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  A broadcast address is a logical address at which all devices connected to a multiple- access communications network are enabled to receive datagrams. A message sent to a broadcast address is typically received by all network-attached hosts, rather than by a specific host. ReferencE. http://www.wikihow.com/Calculate-Network-and-Broadcast-Address

• Question 249:

  A workstation on the third floor of the company building is having connectivity issues. The NIC and patch cable have been tested and found to be working properly. Which of the following would MOST likely have the information the administrator would need to locate and test the remaining cabling and connections?

  A. Network maps
  B. Network baseline
  C. Asset management
  D. Change management
  A. Network maps

• Question 250:

  A forward lookup zone converts which of the following?

  A. IP addresses to hostnames
  B. Hostnames to IP addresses
  C. MAC addresses to IP addresses
  D. IP Addresses to MAC addresses
  B. Hostnames to IP addresses