CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 201:

  Which of the following networking devices can exist at several layers of the OSI model at the same time? (Select TWO).

  A. Switch
  B. Cable
  C. Repeater
  D. Router
  E. Bridge
  F. Hub
  A. Switch
  D. Router

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  A Multilayer Switch and Router work from OSI layer 2, 3 or 4 to IP DSCP (if IP packet) and/or VLAN IEEE 802.1p.

• Question 202:

  Which of the following copper cable types should be chosen to run gigabit speeds through a dropped ceiling that returns airflow?

  A. Non-Plenum CAT5
  B. Non-Plenum CAT5e
  C. Plenum CAT5
  D. Plenum CAT5e
  D. Plenum CAT5e

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  Cat 5e is a twisted pair cable for carrying signals. This type of cable is used in structured cabling for computer networks such as Ethernet. The cable standard provides performance of up to 100 MHz and is suitable for 10BASE-T, 100BASE-TX (Fast Ethernet), and 1000BASE-T (Gigabit Ethernet).

• Question 203:

  A user is connecting to the Internet at an airport through an ad-hoc connection. Which of the following is the MOST likely security threat?

  A. Man-in-the-middle
  B. Social engineering
  C. Phishing
  D. DoS
  A. Man-in-the-middle

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  A man in the middle attack is one in which the attacker intercepts messages in a public key exchange and then retransmits them, substituting his own public key for the requested one, so that the two original parties still appear to be communicating with each other.

• Question 204:

  Layers 5, 6, and 7 from the OSI model correspond to which of the following layers of the TCP/IP model?

  A. Transport
  B. Application
  C. Internet
  D. Network Interface
  B. Application

• Question 205:

  Multiple servers' IP addresses fall within the DHCP scope assigned by the administrator. Which of the following should be implemented to ensure these static IP addresses are not assigned to workstations?

  A. The administrator should create exclusions for the workstations IP addresses.
  B. The administrator should change the servers to utilize DHCP to obtain IP addresses.
  C. The administrator should change the workstations to utilize static IP addresses.
  D. The administrator should create exclusions for the servers IP addresses.
  D. The administrator should create exclusions for the servers IP addresses.

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  Whenever you define the ip pool from which IP addresses are to be dynamically assigned to the users then in order to avoid assignment of static ip address we can creat exclusion for the static ip addresses so that they are not assigned to any other host and this is how we can avoid ip address conflict on the network.

• Question 206:

  The network administrator has been tasked to create a network segment where resources can be placed for public web access. Which of the following should be implemented?

  A. DMZ
  B. Honeynet
  C. PAT
  D. Port security
  A. DMZ

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  In computer security, a DMZ is a physical or logical subnetwork that contains and exposes an organization's external-facing services to a larger and untrusted network, usually the Internet.

• Question 207:

  A strong network firewall would likely support which of the following security features for controlling access? (Select TWO).

  A. War driving
  B. War chalking
  C. MAC filtering
  D. FTP bouncing
  E. Port filtering
  C. MAC filtering
  E. Port filtering

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  MAC filtering set the security level at layer 2 and port filtering will set the security level on layer 4 so by filtering the traffic on both layers our network will get secure.

• Question 208:

  On which of the following OSI model layers would a MAC address be used?

  A. Network
  B. Data Link
  C. Transport
  D. Physical
  B. Data Link

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  The ITU-T G.hn standard, which provides high-speed local area networking over existing wires (power lines, phone lines and coaxial cables), includes a complete data link layer which provides both error correction and flow control by means of a selective repeat Sliding Window Protocol.

• Question 209:

  A company has a server with redundant power supplies. Which of the following is this an example of?

  A. Traffic shaping
  B. Caching engines
  C. Fault tolerance
  D. Load balancing
  C. Fault tolerance

• Question 210:

  Which of the following is a link state routing protocol?

  A. RIPv2
  B. BGP
  C. IS-IS
  D. RIP
  C. IS-IS