CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 211:

  When a patch cable is plugged into a switch, all port activity indicators turn on and users instantly lose network connectivity. Which of the following is the MOST likely diagnosis?

  A. Denial of service attack
  B. MTU black hole
  C. Switching loop
  D. Defective patch cable
  C. Switching loop

• Question 212:

  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

  ---

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

• Question 213:

  Joe, a network technician, is tasked with setting up a new wireless network in an office for office laptops and desktops only. The surrounding offices already have many wireless networks. Joe discovered that over 30 wireless networks were showing up as he completed a wireless survey of the office. Every single one of the networks that Joe was able to see while conducting the wireless survey were 802.11b/g networks. Which of the following should Joe consider before purchasing/installing the new wireless access points?

  A. Move the WAP so that it is close to the interior walls.
  B. Determine which wireless channels and bands to use to mitigate as much interference as possible.
  C. Turn the SSID broadcasts off to decrease interference.
  D. Determine if the business should relocate to a building with a lot less surrounding wireless networks.
  B. Determine which wireless channels and bands to use to mitigate as much interference as possible.

• Question 214:

  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

  ---

  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 215:

  Several mobile users from various areas are reporting intermittent connectivity issues. Which of the following is the MOST likely cause?

  A. Encryption strength
  B. SSID mismatch
  C. Interference
  D. Incompatible NIC
  C. Interference

• Question 216:

  Which of the following tools allows an administrator to identify a cable?

  A. Multimeter
  B. Cable stripper
  C. Toner
  D. Punch down tool
  C. Toner

• Question 217:

  A corporate office recently had a security audit and the IT manager has decided to implement very strict security standards. The following requirements are now in place for each employee logging into the network: Biometric fingerprint scan Complex 12 character password 5 digit pin code authorization Randomized security question prompt upon login Which of the following security setups does this company employ?

  A. Single factor authentication
  B. Three factor authentication
  C. Two factor authentication
  D. Single sign-on
  C. Two factor authentication

  ---

  According to proponents, two-factor authentication could drastically reduce the incidence of online identity theft, phishing expeditions, and other online fraud, because the victim's password would no longer be enough to give a thief access to their information.

• Question 218:

  Honeypots and honeynets are different in which of the following ways?

  A. Honeynets are managed collections of honeypots.
  B. Honeypots only test software security, not hardware.
  C. Honeynets require specialized hardware to implement.
  D. Honeypots are usually servers and honeynets are routers and switches.
  A. Honeynets are managed collections of honeypots.

  ---

  A honeynet is a network set up with intentional vulnerabilities; its purpose is to invite attack, so that an attacker's activities and methods can be studied and that information used to increase network security. A honeynet contains one or more honey pots, which are computer systems on the Internet expressly set up to attract and "trap" people who attempt to penetrate other people's computer systems.

• Question 219:

  A user reports they are unable to access a file on a mapped network drive. A technician discovers the server where the file is located did not come back online after last night's power outage and manually powers the server back online. The technician then verifies the user can connect to their file. Which of the following troubleshooting steps should the technician do NEXT?

  A. Escalate by following change procedures
  B. Establish a plan of action to resolve the problem
  C. Document findings, actions, and outcomes
  D. Question the user
  C. Document findings, actions, and outcomes

• Question 220:

  A company is experiencing a denial of service attack and wants to identify the source IP address of the attacker in real time. Which method is the BEST way to accomplish this?

  A. Network sniffer
  B. Syslog
  C. SNMPv3
  D. System logs
  A. Network sniffer